Sample records for walker branch throughfall

  1. Walker Branch Watershed Ecosystems Data

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    These projects have all contributed to a more complete understanding of how forest watersheds function and have provided insights into the solution of energy-related problems associated with air pollution, contaminant transport, and forest nutrient dynamics. This is one of a few sites in the world characterized by long-term, intensive environmental studies. The Walker Branch Watershed website at http://walkerbranch.ornl.gov/ provides maps, photographs, and data on climate, precipitation, atmospheric deposition, stream discharge and runoff, stream chemistry, and vegetation. [Taken from http://walkerbranch.ornl.gov/ABOUTAAA.HTM

  2. annual walker branch: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    241 308 Figliozzi, Wheeler, Albright, Walker, Sarkar, and Rice 1 Algorithms to Study the Impacts of Travel Time Reliability along Multi- Energy Storage, Conversion and Utilization...

  3. Field studies of streamflow generation using natural and injected tracers on Bickford and Walker Branch Watersheds

    SciTech Connect (OSTI)

    Genereux, D.; Hemond, H. [Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Civil Engineering; Mulholland, P. [Oak Ridge National Lab., TN (United States)

    1992-05-01T23:59:59.000Z

    Field studies of streamflow generation were undertaken on two forested watersheds, the West Road subcatchment of Bickford Watershed in central Massachusetts and the West Fork of Walker Branch Watershed in eastern Tennessee. A major component of the research was development of a two-stage methodology for the use of naturally-occurring {sup 222}Rn as a tracer. The first of the two stages was solving a mass-balance equation for {sup 222}Rn around a stream reach of interest in order to calculate Rn{sub q}, the {sup 222}Rn content of the lateral inflow to the reach; a conservative tracer (chloride) and a volatile tracer (propane) were injected into the study stream to account for lateral inflow to, and volatilization from, the study reach. The second stage involved quantitative comparison of Rn{sub q} to the measured {sup 222}Rn concentrations of different subsurface waters in order to assess how important these waters were in contributing lateral inflow to the stream reach.

  4. Long-Term Data Reveal Patterns and Controls on Stream Water Chemistry in a Forested Stream: Walker Branch, Tennessee

    SciTech Connect (OSTI)

    Lutz, Brian D [Duke University; Mulholland, Patrick J [ORNL; Bernhardt, Emily [Duke University

    2012-01-01T23:59:59.000Z

    We present 20 years of weekly stream water chemistry, hydrology, and climate data for the Walker Branch watershed in eastern Tennessee, USA. Since 1989, the watershed has experienced a similar to 1.08 degrees C increase in mean annual temperature, a similar to 20% decline in precipitation, and a similar to 30% increase in forest evapotranspiration rates. As a result, stream runoff has declined by similar to 34%. We evaluate long-term trends in stream water concentrations and fluxes for nine solutes and use wet deposition data to calculate approximate watershed input-output budgets. Dissolved constituents were classified as geochemical solutes (Ca2+, Mg2+, and SO42-) or nutrients (NH4+, NO3-, soluble reactive phosphorus [SRP], total soluble nitrogen [TSN], total soluble phosphorus [TSP], and dissolved organic carbon [DOC]). Geochemical solutes are predominantly controlled by discharge, and the long-term changes in catchment hydrology have led to significant trends in the concentrations and fluxes of these solutes. Further, the trends in geochemical solute concentrations indicate shifting soil flowpath contributions to streamflow generation through time, with deep groundwater having a greater proportional contribution in recent years. Despite dramatic changes in watershed runoff, there were no trends in inorganic nutrient concentrations (NH4+, NO3-, and SRP). While most nutrients entering the watershed are retained, stream fluxes of nutrient solutes have declined significantly as a result of decreasing runoff. Nutrient concentrations in the stream exhibit large seasonality controlled by in-stream biological uptake. Stream benthic communities are sensitive to hydrologic disturbance, and changes in the frequency or intensity of storm events through time can affect nutrient fluxes. Stream NO3- concentrations are also sensitive to drought, with concentrations decreasing (increasing) if conditions during the three years prior to the time of sampling were drier (wetter) than the long-term mean. Future changes in the incidence of storm events, as well as the number and duration of droughts, have the potential to significantly alter watershed nutrient losses. Our analysis indicates that changing climates can differentially affect watershed element cycles either through changes in biogeochemical process rates or through changes in catchment hydrology. Furthermore, climate change can include both long-term trending in mean climate variables, as well as changes in the frequency and intensity of storms and droughts, with each of these types of change having distinct effects on the biological and geochemical processes governing different solutes.

  5. Leaf dynamics, stemflow and throughfall water and nutrient inputs in a subtropical savanna parkland, Texas

    E-Print Network [OSTI]

    Angerer, Jay Peter

    1991-01-01T23:59:59.000Z

    for K, followed by Mg, P, N and Ca. Annual throughfall and stemflow inputs (both nutrients and water) differed among clusters as a result of differing shrub cluster size, total canopy area, and species composition. Throughfall generally made up 97... of Shrub Clusters Plant abundance and size Biomass above BTF collectors Potential Leachability Calcium Magnesium Potassium Nitrogen Phosphorus Bulk Precipitation and Bulk Throughfall Chemistry Nutrient concentrations Regression relationships...

  6. Walker Branch WatershedWalker Branch Watershed LongLong--term hydrology, streamterm hydrology, stream

    E-Print Network [OSTI]

    matterOrganic matter dynamics and fooddynamics and food webswebs TracerTracer 3333P &P & 1515N addition,Algae, bryophytes, and effects of light,and effects of light, nutrients andnutrients and herbivoryherbivory Organic

  7. Characterization of Throughfall Heterogeneity in a Tropical Pre-Montane Could Forest in Costa Rica

    E-Print Network [OSTI]

    Berger, Amelie Cecile

    2013-09-26T23:59:59.000Z

    CHARACTERIZATION OF THROUGHFALL HETEROGENEITY IN A TROPICAL PRE-MONTANE CLOUD FOREST IN COSTA RICA An Undergraduate Research Scholars Thesis by AMELIE CECILE BERGER Submitted to Honors and Undergraduate Research Texas A... .......................................................................................................4 Tropical forest hydrology ........................................................................................7 Study site: watershed near San Isidro, Costa Rica .................................................13 Quantification...

  8. November 2012 ROBERT T. WALKER

    E-Print Network [OSTI]

    Walker, Robert T.

    Production and Renewable Resource Exploitation (September 1980 - December 1984). MASTER OF SCIENCE, and deforestation in South America. Global Environmental Change. 22: 454-462. Aldrich, S., Walker, R., Simmons, C in the Brazilian Amazon. 2010. Bulletin of Latin American Research 29(4): 459-476. Caldas, M., Simmons, C., Walker

  9. Vibrotactile Guidance for Wayfinding of Blind Walkers

    E-Print Network [OSTI]

    Manduchi, Roberto; Flores, German; Kurniawan, Sri; Morales, Lourdes; Martinson, Eric; Sisbot, Akin

    2015-01-01T23:59:59.000Z

    travel aid for the blind. Systems, Man, and Cybernetics,Guidance for Wayfinding of Blind Walkers G. Flores, S.the form of a belt for guiding blind walkers. This interface

  10. Orbital Branching

    E-Print Network [OSTI]

    2006-11-15T23:59:59.000Z

    Nov 15, 2006 ... allowing a flexible branching rule. ..... flexibility in the choice of branching entity. ..... Column generation for solving huge integer programs.

  11. December 12, 2003 Mark Walker

    E-Print Network [OSTI]

    to comment on the future power supply role of the Bonneville Power Administration ("BPA"). SUB is a municipal SW 6th Avenue, Suite 1100 Portland, Oregon 97204-1348 Re:Future Role Of The Bonneville PowerDecember 12, 2003 Mark Walker Director of Public Affairs Northwest Power & Conservation Council 851

  12. Harris Walker | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742Energy ChinaofSchaefer To:Department of Energy Completing the OfficeHarris Walker -

  13. Wind Walkers | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTriWildcat 1 Wind Project Jump to:Wilson HotWalkers Jump to: navigation,

  14. A Smart Walker to Understand Walking Abilities

    E-Print Network [OSTI]

    Poupart, Pascal

    for Aging, Village of Winston Park, Toronto Rehabilitation Institute, CIHR, NSERC #12;3 Outline · Motivation? Pascal Poupart, 11/21/2008 #12;7 Smart Walker walker devices + caregivers users Force sensors Load, brakes, load) ­ environment (obstacles) · Why? ­ Detect falls ­ Monitor users ­ Ensure safety #12;9 i

  15. Mark Walker Director of Public Affairs

    E-Print Network [OSTI]

    the Bonneville Power Administration, which has not raised its conservation budget. If others can increaseMark Walker Director of Public Affairs Northwest Power and Conservation Council Dear Mr. Walker, According to your recent study, "A Retrospective Look at the Northwest Power and Conservation Council

  16. Interdiction Branching

    E-Print Network [OSTI]

    2011-09-29T23:59:59.000Z

    Sep 29, 2011 ... of partitioning the search space, referred to as the branching scheme. .... standard branch-and-bound both in terms of size of the enumeration tree and ...... of the fractional variable to be selected to enter at each iteration of the.

  17. Branched Polymers

    E-Print Network [OSTI]

    Richard Kenyon; Peter Winkler

    2007-09-14T23:59:59.000Z

    Building on and from the work of Brydges and Imbrie, we give an elementary calculation of the volume of the space of branched polymers of order $n$ in the plane and in 3-space. Our development reveals some more general identities, and allows exact random sampling. In particular we show that a random 3-dimensional branched polymer of order $n$ has diameter of order $\\sqrt{n}$.

  18. activated random walkers: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Dupic 2013-11-04 15 Transition to Localization of Biased Walkers in a Randomly Absorbing Enviroment Condensed Matter (arXiv) Summary: We study biased random walkers on lattices...

  19. Walker, Michigan: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwide Permit webpage JumpWaikane,(Redirected from Walker LakeWalker,

  20. JOHN A. WALKER COLLEGE OF BUSINESS

    E-Print Network [OSTI]

    Thaxton, Christopher S.

    JOHN A. WALKER COLLEGE OF BUSINESS COMPUTER INFORMATION SYSTEMS MINOR (310) Fall 2011 ­ Summer 2012 Students not majoring in the College of Business may earn a computer information systems minor not admitted to the College of Business may take at most five business courses at the 3000 or 4000 level

  1. Conformally Friedmann-Lemaitre-Robertson-Walker cosmologies

    E-Print Network [OSTI]

    Visser, Matt

    2015-01-01T23:59:59.000Z

    In a universe where, according to the standard cosmological models, some 97% of the total mass-energy is still "missing in action" it behooves us to spend at least a little effort critically assessing and exploring radical alternatives. Among possible, (dare we say plausible), nonstandard but superficially viable models, those spacetimes conformal to the standard Friedmann-Lemaitre-Robertson-Walker class of cosmological models play a very special role --- these models have the unique and important property of permitting large non-perturbative geometric deviations from Friedmann-Lemaitre-Robertson-Walker cosmology without unacceptably distorting the cosmic microwave background. Performing a "cosmographic" analysis, (that is, temporarily setting aside the Einstein equations, since the question of whether or not the Einstein equations are valid on galactic and cosmological scales is essentially the same question as whether or not dark matter/dark energy actually exist), and using both supernova data and informat...

  2. Modeling-Computer Simulations At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Walker-Lane Transitional Zone Region (Biasi, Et Al., 2009) Exploration...

  3. Modeling-Computer Simulations At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Modeling-Computer Simulations At Walker-Lane Transitional Zone Region (Pritchett, 2004) Exploration...

  4. Geographic Information System At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Zone Region (Laney, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geographic Information System Activity...

  5. Geodetic Survey At Walker-Lane Transitional Zone Region (Blewitt...

    Open Energy Info (EERE)

    Zone Region (Blewitt Et Al, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geodetic Survey Activity Date...

  6. Field Mapping At Walker-Lane Transitional Zone Region (Shevenell...

    Open Energy Info (EERE)

    Region (Shevenell, Et Al., 2008) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  7. Compound and Elemental Analysis At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Zone Region (Coolbaugh, Et Al., 2010) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Compound and Elemental Analysis...

  8. Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    Zone Region (Biasi, Et Al., 2008) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Teleseismic-Seismic Monitoring Activity...

  9. Geothermometry At Walker-Lane Transitional Zone Region (Shevenell...

    Open Energy Info (EERE)

    (Shevenell & De Rocher, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness...

  10. Refraction Survey At Walker-Lane Transitional Zone Region (Heimgartner...

    Open Energy Info (EERE)

    Region (Heimgartner, Et Al., 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Refraction Survey Activity Date...

  11. Field Mapping At Walker-Lane Transitional Zone Region (Blewitt...

    Open Energy Info (EERE)

    Zone Region (Blewitt Et Al, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Field Mapping Activity Date Usefulness...

  12. Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Teleseismic-Seismic Monitoring At Walker-Lane Transitional Zone Region (Biasi, Et Al., 2009) Exploration...

  13. Glan Morfa Community Woodland Jeanette Mays, Collette Hughes, Peter Smith & Jimmy Walker (MRRA)

    E-Print Network [OSTI]

    Glan Morfa Community Woodland Jeanette Mays, Collette Hughes, Peter Smith & Jimmy Walker (MRRA & Jimmy Walker (MRRA) 01745 362459 marshcom@googlemail.com Marsh Road Residents Association, 33 Rhydwen Jeanette Mays, Collette Hughes, Peter Smith & Jimmy Walker (MRRA) 01745 362459 marshcom

  14. Chaotic Friedmann-Robertson-Walker Cosmology

    E-Print Network [OSTI]

    E. Calzetta; C. El Hasi

    1992-11-23T23:59:59.000Z

    We show that the dynamics of a spatially closed Friedmann - Robertson - Walker Universe conformally coupled to a real, free, massive scalar field, is chaotic, for large enough field amplitudes. We do so by proving that this system is integrable under the adiabatic approximation, but that the corresponding KAM tori break up when non adiabatic terms are considered. This finding is confirmed by numerical evaluation of the Lyapunov exponents associated with the system, among other criteria. Chaos sets strong limitations to our ability to predict the value of the field at the Big Crunch, from its given value at the Big Bang. (Figures available on request)

  15. Doreen Walker Consulting | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual Siteof Energy 2,AUDIT REPORTEnergy OffshoreDeveloper - Q & ADoreen Walker Consulting

  16. JONCE WALKER, LEED AP SUSTAINABILITY MANAGER, MARICOPA COUNTY

    E-Print Network [OSTI]

    Franz, Nico M.

    and continuing to transition the County towards more energy efficiency and sustainable business practicesJONCE WALKER, LEED AP SUSTAINABILITY MANAGER, MARICOPA COUNTY Jonce Walker, a LEED Accredited Professional, is the Sustainability Manager for Maricopa County Arizona which employs over 14,000 people

  17. The Fusion of Ideas: An Interview with Margaret Walker Alexander

    E-Print Network [OSTI]

    Graham, Maryemma

    1993-06-01T23:59:59.000Z

    Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. The fusion of ideas: An interview with Margaret Walker Alex African American Review; Summer 1993; 27, 2; ProQuest Research Library pg. 279...

  18. On the construction of Fermi-Walker transported frames

    E-Print Network [OSTI]

    J. W. Maluf; F. F. Faria

    2008-04-15T23:59:59.000Z

    We consider tetrad fields as reference frames adapted to observers that move along arbitrary timelike trajectories in spacetime. By means of a local Lorentz transformation we can transform these frames into Fermi-Walker transported frames, which define a standard of non-rotation for accelerated observers. Here we present a simple prescription for the construction of Fermi-Walker transported frames out of an arbitrary set of tetrad fields.

  19. Melons are branched polymers

    E-Print Network [OSTI]

    Razvan Gurau; James P. Ryan

    2013-02-18T23:59:59.000Z

    Melonic graphs constitute the family of graphs arising at leading order in the 1/N expansion of tensor models. They were shown to lead to a continuum phase, reminiscent of branched polymers. We show here that they are in fact precisely branched polymers, that is, they possess Hausdorff dimension 2 and spectral dimension 4/3.

  20. , 20130047, published 2 June 20143722014Phil. Trans. R. Soc. A Walker Smith

    E-Print Network [OSTI]

    Thompson, Andrew

    , 20130047, published 2 June 20143722014Phil. Trans. R. Soc. A Walker Smith Thompson, Sophie Fielding , Damien Guihen , Elizabeth Creed , Je K. Ridley and Walker Smith Centre for Ocean and Atmospheric

  1. Walker-Lane Transition Zone Geothermal Region | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwide Permit webpage JumpWaikane,(Redirected from Walker LakeWalker,Jump

  2. Guidelines for Residential Commissioning Craig Wray, Iain Walker, Max Sherman

    E-Print Network [OSTI]

    LBNL-48767 Guidelines for Residential Commissioning Craig Wray, Iain Walker, Max Sherman Berkeley, CA 94720 January 2003 This report describes work supported by the California Energy Commission-76SF00098. This report was prepared as a result of work sponsored by the California Energy Commission

  3. Iain S. Walker1 and Max H. Sherman1

    E-Print Network [OSTI]

    LBNL 50189 1 Iain S. Walker1 and Max H. Sherman1 Sealant Longevity for Residential Ducts Reference by LBNL is being used as a basis for an ASTM Standard under sub-committee E6.41. LBNL tests found sealants. LBNL has also tested advanced tape products being developed by major manufacturers. The results

  4. * Corresponding author. Tel.: #44-1570-424736. E-mail address: walker@lamp.ac.uk (M.J.C. Walker)

    E-Print Network [OSTI]

    Wohlfarth, Barbara

    * Corresponding author. Tel.: #44-1570-424736. E-mail address: walker@lamp.ac.uk (M.J.C. Walker that these approaches were never designed for such "ne-scale resolution of the strati- graphic record. This has led

  5. Radioiodinated branched carbohydrates

    DOE Patents [OSTI]

    Goodman, Mark M. (Knoxville, TN); Knapp, Jr., Furn F. (Oak Ridge, TN)

    1989-01-01T23:59:59.000Z

    A radioiodinated branched carbohydrate for tissue imaging. Iodine-123 is stabilized in the compound by attaching it to a vinyl functional group that is on the carbohydrate. The compound exhibits good uptake and retention and is promising in the development of radiopharmaceuticals for brain, heart and tumor imaging.

  6. Branched Polymers and Hyperplane Arrangements

    E-Print Network [OSTI]

    Postnikov, Alexander

    We generalize the construction of connected branched polymers and the notion of the volume of the space of connected branched polymers studied by Brydges and Imbrie (Ann Math, 158:1019–1039, 2003), and Kenyon and Winkler ...

  7. Holographic Coulomb branch vevs

    E-Print Network [OSTI]

    Kostas Skenderis; Marika Taylor

    2008-01-11T23:59:59.000Z

    We compute holographically the vevs of all chiral primary operators for supergravity solutions corresponding to the Coulomb branch of N=4 SYM and find exact agreement with the corresponding field theory computation. Using the dictionary between 10d geometries and field theory developed to extract these vevs, we propose a gravity dual of a half supersymmetric deformation of N=4 SYM by certain irrelevant operators.

  8. BRANCHED POLYMERS AND HYPERPLANE ARRANGEMENTS

    E-Print Network [OSTI]

    Postnikov, Alexander

    BRANCHED POLYMERS AND HYPERPLANE ARRANGEMENTS KAROLA M´ESZ´AROS ALEXANDER POSTNIKOV Abstract. We of connected branched polymers studied by Brydges and Imbrie [BI], and Kenyon and Winkler [KW] to any hyperplane arrangement A. The volume of the resulting configuration space of connected branched polymers

  9. Walker County, Alabama: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwide Permit webpage JumpWaikane, Hawaii:Walbridge,Waldwick,Walker

  10. Walker County, Georgia: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwide Permit webpage JumpWaikane, Hawaii:Walbridge,Waldwick,Walker231°,

  11. Walker Lake Valley Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwide Permit webpage JumpWaikane,(Redirected from Walker Lake Valley

  12. Walker Valley, New York: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwide Permit webpage JumpWaikane,(Redirected from Walker Lake

  13. Does Mixing Make Residential Ventilation More Effective? Max Sherman, Iain Walker

    E-Print Network [OSTI]

    Does Mixing Make Residential Ventilation More Effective? Max Sherman, Iain Walker Environmental thereof or the Regents of the University of California. #12;Does Mixing Make Residential Ventilation More Effective? Max Sherman and Iain Walker, Lawrence Berkeley Lab ABSTRACT Ventilation dilutes or removes indoor

  14. Kinematic and Mechanical Reconstruction of Walker Ridge Structures, Deepwater Gulf of Mexico

    E-Print Network [OSTI]

    Majekodunmi, Oluwatosin Eniola

    2011-02-22T23:59:59.000Z

    of the requirements for the degree of MASTER OF SCIENCE December 2009 Major Subject: Geology ? KINEMATIC AND MECHANICAL RECONSTRUCTION OF WALKER RIDGE STRUCTURES, DEEPWATER GULF OF MEXICO ? ? A Thesis OLUWATOSIN ENIOLA MAJEKODUNMI.... Bryant Head of Department, Andreas K. Kronenberg December 2009 Major Subject: Geology iii ABSTRACT Kinematic and Mechanical Reconstruction of Walker Ridge Structures, Deepwater Gulf of Mexico. (December 2009...

  15. Cleantech to Market Projects Spring 2011 1. Residential Ventilation Controller; PI -Iain Walker

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Cleantech to Market Projects ­ Spring 2011 1. Residential Ventilation Controller; PI - Iain Walker As homes become more airtight optimizing for energy efficiency. Researchers have designed a smart ventilation system

  16. A Phase I Cultural Resources Survey of the Walker County Jail and Office Expansion Area Project

    E-Print Network [OSTI]

    Moore, William

    2015-06-08T23:59:59.000Z

    with little or no subsurface testing. As a result, much of the information for Walker County is taken from projects in surrounding areas such as Lake Livingston in Polk and San Jacinto counties (McClurkan 1968; Ensor and Carlson 1988), Lake Conroe... at Huntsville Fish Hatchery, Walker County, Texas. Texas Parks and Wildlife Department, Cultural Resources Program. Austin. Ensor, H. Blaine, and David L. Carlson 1988 The Crawford Site, 41PK69, Central Trinity River Uplands, Polk County, Texas. Texas...

  17. energy company opens American branch

    E-Print Network [OSTI]

    Lin, C.-Y. Cynthia

    in clean-energy investment and delivering unique projects and innovative products and servicesenergy company opens American branch in West Sacramento Substainible energy for sustainable energy supply. Ecostream markets such things as solar roof panel installations and other long

  18. Chaos in Preinflationary Friedmann-Robertson-Walker Universes

    E-Print Network [OSTI]

    Monerat, G A; Soares, I D; Soares, Ivano D.

    1998-01-01T23:59:59.000Z

    The dynamics of a preinflacionary phase of the universe, and its exit to inflation, is discussed. This phase is modeled by a closed Friedmann-Robertson-Walker geometry, the matter content of which is radiation plus a scalar field minimally coupled to the gravitational field. The simple configuration, with two effective degres of freedom only, presents a very complicated dynamics connected to the existence of critical points of saddle-center type and saddle type in phase space of the system. Each of these critical points is associated to an extremum of the scalar field potential. The Topology of the phase space about the saddle-center is characterized by homoclinic cylinders emanating from unstable periodic orbits, and the transversal crossing of the cylinders, due to the non-integrability of the system, results in a chaotic dynamics. The topology of the homoclinic cylinders provides an invariant characterization of chaos. The model exhibits one or more exits to inflation, associated to one or more strong asym...

  19. Does the Walker Lane extend through the Nevada test site region

    SciTech Connect (OSTI)

    Fridrich, C.; O'Leary, D. (Geological Survey, Denver, CO (United States). Denver Federal Center)

    1993-04-01T23:59:59.000Z

    The southeastern terminus of the Walker Lane is poorly defined and poorly understood. Recent work in and around the Nevada Test Site (NTS) suggests the presence of a structural zone that may be an extension of the Walker Lane, and that may be continuous with the Las Vegas valley shear zone farther to the southeast. Unlike the Walker Lane, large through-going strike-slip faults have not been found in the NTS zone. Instead, the strike-slip faults present are few, are relatively short, commonly consist of diffuse fault zones, are interconnected poorly if at all, and largely appear to represent zones of accommodation between domains in which extension occurred at different times and to different degrees. However, the majority of these right-slip and left-slip faults are northwest-trending and northeast-trending, respectively, suggesting that plate motions may have played a role in the creation of these accommodation zones. An obstacle to understanding the NTS zone is that major ignimbrite sheets and calderas of the southwestern Nevada volcanic field (SNVF) formed in this zone at the height of late Tertiary tectonic activity, possibly burying much of the structural evidence. The NTS zone could represent an intersection of the Walker Lane with another major structural feature, a significant bend in the Walker Lane, or a transtensional tear that localized accommodation structures as well as the prominent late Miocene calderas of the SNVF. Ongoing field work is aimed at determining which of these and competing interpretations is best.

  20. Direct Line: (250) 714-0045 Lab Tel: (250) 714-0044 ...1 of 18 pages Mr. Mark Walker

    E-Print Network [OSTI]

    Direct Line: (250) 714-0045 Lab Tel: (250) 714-0044 ...1 of 18 pages Mr. Mark Walker Public Affairs Tracking For Survival, Proposal # 200311400 Dear Mr. Walker: I write in response to the NWPPC preliminary% of the requested annual amount of $1.5M. I would like to highlight the developments that have gone on this spring

  1. A Phase I Cultural Resources Survey of the Walker County Jail and Office Expansion Area Project 

    E-Print Network [OSTI]

    Moore, William

    2015-06-08T23:59:59.000Z

    documents the results of a Phase I assessment of a 12.82 acre tract on land owned by the County of Walker in central Walker County, Texas (Figure 1). The site area is on a high clay ridge overlooking a low area to the north. The project area is bounded... as defined by the United States Forest Service for the four National Forests in East Texas. According to Ippolito (1983:6-7), the major forest cover types in this community include loblolly pine, shortleaf pine, slash pine, post oak, southern red oak...

  2. Molecular Genetic Analysis of Maize Starch Branching Isoforms: Modulation of Starch Branching Enzyme Isoform Activities in Maize to Produce Starch with Novel Branching Architecture and Properties

    SciTech Connect (OSTI)

    Guiltinan, Mark J.; Thompson, Donald

    2009-07-21T23:59:59.000Z

    Modulation of Starch Branching enzyme Isoform Activities in Maize to Produce Starch with Novel Branching Architecture and Properties.

  3. BRANCHED ALKANES FROM BLUE-GREEN ALGAE

    E-Print Network [OSTI]

    Han, Jerry; Calvin, Melvin.

    2008-01-01T23:59:59.000Z

    ~ BRANCHED ALKANES FROM BLUE-GREEN ALGAE RECEIV r -· LAWREWBranched Alkanes From Blue-Green Algae by Jerry Han and Oep~Branched alkanes from blue-green algae were separated on a

  4. Branched Silver Nanowires as Controllable Plasmon Routers

    E-Print Network [OSTI]

    Wang, Wei Hua

    Branched Silver Nanowires as Controllable Plasmon Routers Yurui Fang, Zhipeng Li, Yingzhou Huang scattering spectroscopy, we investigate plasmon propagation on branched silver nanowires. By controlling the polarization of the incident laser light, the wire plasmons can be routed into different wire branches

  5. The branching programme of mouse lung development

    E-Print Network [OSTI]

    Klein, Ophir

    ARTICLES The branching programme of mouse lung development Ross J. Metzger1 {, Ophir D. Klein2 {, Gail R. Martin2 & Mark A. Krasnow1 Mammalian lungs are branched networks containing thousands by three geometrically simple local modes of branching used in three different orders throughout the lung

  6. Ventilation Requirements in Hot Humid Iain S. Walker and Max H. Sherman

    E-Print Network [OSTI]

    LBNL-59889 Ventilation Requirements in Hot Humid Climates Iain S. Walker and Max H. Sherman residential ventilation standard, ASHRAE Standard 62.2. Meeting this standard in new construction requires the use of mechanical ventilation, which in turn can often significantly increase the latent load faced

  7. HEAT RECOVERY IN BUILDING ENVELOPES Max H. Sherman and Iain S. Walker

    E-Print Network [OSTI]

    1 LBNL 47329 HEAT RECOVERY IN BUILDING ENVELOPES Max H. Sherman and Iain S. Walker Energy formula may produce an unreasonably high contribution because of heat recovery within the building physical model has been developed and used to predict the infiltration heat recovery based on the Peclet

  8. Regional Patterns of Tropical Indo-Pacific Climate Change: Evidence of the Walker Circulation Weakening*

    E-Print Network [OSTI]

    Xie, Shang-Ping

    in the tropical eastern Pacific and western Indian Ocean than in the tropical western Pacific and eastern IndianRegional Patterns of Tropical Indo-Pacific Climate Change: Evidence of the Walker Circulation Weakening* HIROKI TOKINAGA, SHANG-PING XIE, AND AXEL TIMMERMANN International Pacific Research Center, SOEST

  9. Seeing the sky through Hubble's eye: The COSMOS SkyWalker

    E-Print Network [OSTI]

    K. Jahnke; S. F. Sanchez; A. Koekemoer

    2006-07-23T23:59:59.000Z

    Large, high-resolution space-based imaging surveys produce a volume of data that is difficult to present to the public in a comprehensible way. While megapixel-sized images can still be printed out or downloaded via the World Wide Web, this is no longer feasible for images with 10^9 pixels (e.g., the Hubble Space Telescope Advanced Camera for Surveys [ACS] images of the Galaxy Evolution from Morphology and SEDs [GEMS] project) or even 10^10 pixels (for the ACS Cosmic Evolution Survey [COSMOS]). We present a Web-based utility called the COSMOS SkyWalker that allows viewing of the huge ACS image data set, even through slow Internet connections. Using standard HTML and JavaScript, the application successively loads only those portions of the image at a time that are currently being viewed on the screen. The user can move within the image by using the mouse or interacting with an overview image. Using an astrometrically registered image for the COSMOS SkyWalker allows the display of calibrated world coordinates for use in science. The SkyWalker "technique" can be applied to other data sets. This requires some customization, notably the slicing up of a data set into small (e.g., 256^2 pixel) subimages. An advantage of the SkyWalker is the use of standard Web browser components; thus, it requires no installation of any software and can therefore be viewed by anyone across many operating systems.

  10. Air Leakage of Furnaces and Air Handlers Iain S. Walker, Mike Lubliner, Darryl Dickerhoff,

    E-Print Network [OSTI]

    Air Leakage of Furnaces and Air Handlers of California. #12;1 Air Leakage of Furnaces and Air Handlers Iain S. Walker, LBNL Mike Lubliner, Washington been made in reducing air leakage in residential and to a lesser extent small commercial forced air

  11. Shape optimization of peristaltic pumping Shawn W. Walker *, Michael J. Shelley

    E-Print Network [OSTI]

    Shelley, Michael

    Shape optimization of peristaltic pumping Shawn W. Walker *, Michael J. Shelley New York University 14 October 2009 Available online 25 October 2009 Keywords: Peristalsis Pumping Shape optimization PDE of biology and peristaltic pumping is a fundamental mechanism to accomplish this; it is also important

  12. SIR GILBERT WALKER AND A CONNECTION BETWEEN EL NIO AND STATISTICS: FROM "TYPICAL CAMBRIDGE DON" TO

    E-Print Network [OSTI]

    Katz, Richard

    autocorrelations (e. g., R statistical programming language) Speech compression #12;11 #12;12 (2) SIR GILBERT Research Boulder, CO USA Home page: www.isse.ucar.edu/staff/katz/ Reference: Katz, R.W. (2002). Statistical1 SIR GILBERT WALKER AND A CONNECTION BETWEEN EL NIÑO AND STATISTICS: FROM "TYPICAL CAMBRIDGE DON

  13. Job submission to grid computing environments RP Bruin, TOH White, AM Walker, KF Austen, MT Dove

    E-Print Network [OSTI]

    Cambridge, University of

    Job submission to grid computing environments RP Bruin, TOH White, AM Walker, KF Austen, MT Dove Albemarle Street, London W1S 4BS Abstract The problem of enabling scientist users to submit jobs to grid scientists to work with raw Globus job-submission commands ­ in the end they are likely to end up

  14. SEMI-TOPOLOGICAL K-THEORY OF REAL VARIETIES Eric M. Friedlander and Mark E. Walker

    E-Print Network [OSTI]

    the definition of Ksemi to real varieties, establish nu- merous foundational properties of our theorySEMI-TOPOLOGICAL K-THEORY OF REAL VARIETIES Eric M. Friedlander and Mark E. Walker Abstract. The semi-topological K-theory of real varieties, KRsemi(-), is an ori- ented multiplicative (generalized

  15. SEMITOPOLOGICAL KTHEORY OF REAL VARIETIES Eric M. Friedlander and Mark E. Walker #

    E-Print Network [OSTI]

    information about algebraic K­theory. In this paper, we extend the definition of K semi to real varietiesSEMI­TOPOLOGICAL K­THEORY OF REAL VARIETIES Eric M. Friedlander and Mark E. Walker # Abstract. The semi­topological K­theory of real varieties, KR semi (-), is an ori­ ented multiplicative (generalized

  16. V.1Semi-topological K-Theory Eric M. Friedlander and Mark E. Walker *

    E-Print Network [OSTI]

    ....................................................................................... 878 1.2 Definition of Semi-topological K-Theory ........................................ 881 SemiV.1Semi-topological K-Theory Eric M. Friedlander and Mark E. Walker * 1.1 Introduction-topological K-Theory of Projective Varieties: Ksemi ....................... 883 Semi-topological K-Theory

  17. Figliozzi, Wheeler, Albright, Walker, Sarkar, and Rice 1 Algorithms to Study the Impacts of Travel Time Reliability along Multi-

    E-Print Network [OSTI]

    Figliozzi, Wheeler, Albright, Walker, Sarkar, and Rice 1 Algorithms to Study the Impacts and Regional Planning Portland State University Shreemoyee Sarkar Computer Science Portland State University, Sarkar, and Rice 2 Abstract Performance measures allow planners and engineers to monitor

  18. Dynamic coupling drives conformational evolution of branched...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Materials Characterization Dynamic coupling drives conformational evolution of branched polymers in solutions March 06, 2015 Inter-particle collision time (filled circles) and...

  19. Regulation of Branching by Phytochrome and Phytohormones

    E-Print Network [OSTI]

    Krishnareddy, Srirama R.

    2012-07-16T23:59:59.000Z

    ratios (R:FR) perceived by phytochromes serve as a warning signal about impending competition for light resources and lead to shade avoidance responses (SARs), including reduced branching. The R:FR regulates branching in both a bud autonomous and non...

  20. Updated 7-11 Elliott B. Branch

    E-Print Network [OSTI]

    Corporation, and the Departments of Defense, Energy, Justice and State. #12;Updated 7-11 Prior to that, heUpdated 7-11 Elliott B. Branch Deputy Assistant Secretary of the Navy (Acquisition and Procurement activity in approximately 75 agencies. Mr. Branch spent time in the private sector, where he specialized

  1. Newtonian and Post-Newtonian approximations of the k = 0 Friedmann Robertson Walker Cosmology

    E-Print Network [OSTI]

    Tamath Rainsford

    1999-09-12T23:59:59.000Z

    In a previous paper we derived a post-Newtonian approximation to cosmology which, in contrast to former Newtonian and post-Newtonian cosmological theories, has a well-posed initial value problem. In this paper, this new post-Newtonian theory is compared with the fully general relativistic theory, in the context of the k = 0 Friedmann Robertson Walker cosmologies. It is found that the post-Newtonian theory reproduces the results of its general relativistic counterpart, whilst the Newtonian theory does not.

  2. On Parallel Transport in Quantum Bundles over Robertson-Walker Spacetimes

    E-Print Network [OSTI]

    James Coleman

    1996-12-03T23:59:59.000Z

    A recently-developed theory of quantum general relativity provides a propagator for free-falling particles in curved spacetimes. These propagators are constructed by parallel-transporting quantum states within a quantum bundle associated to the Poincare frame bundle. We consider such parallel transport in the case that the spacetime is a classical Robertson-Walker universe. An explicit integral formula is developed which expresses the propagators for parallel transport between any two points of such a spacetime. The integrals in this formula are evaluated in closed form for a particular spatially-flat model.

  3. FY 1990 Applied Sciences Branch annual report

    SciTech Connect (OSTI)

    Keyes, B.M.; Dippo, P.C. [eds.

    1991-11-01T23:59:59.000Z

    The Applied Sciences Branch actively supports the advancement of DOE/SERI goals for the development and implementation of the solar photovoltaic technology. The primary focus of the laboratories is to provide state-of-the-art analytical capabilities for materials and device characterization and fabrication. The branch houses a comprehensive facility which is capable of providing information on the full range of photovoltaic components. A major objective of the branch is to aggressively pursue collaborative research with other government laboratories, universities, and industrial firms for the advancement of photovoltaic technologies. Members of the branch disseminate research findings to the technical community in publications and presentations. This report contains information on surface and interface analysis, materials characterization, development, electro-optical characterization module testing and performance, surface interactions and FTIR spectroscopy.

  4. MOMENT ASYMPTOTICS FOR MULTITYPE BRANCHING RANDOM WALKS

    E-Print Network [OSTI]

    König, Wolfgang

    of Montenegro 29 October, 2013 Abstract. We study a discrete time multitype branching random walk on a finite of Montenegro, Cetinjska 2, 81 000 Podgorica, Montenegro, ozrens@t-com.me AMS 2010 Subject Classification: 60J80

  5. MOMENT ASYMPTOTICS FOR MULTITYPE BRANCHING RANDOM WALKS

    E-Print Network [OSTI]

    König, Wolfgang

    of Montenegro 29 October, 2013 Abstract. We study a discrete time multitype branching random walk on a #28;nite of Montenegro, Cetinjska 2, 81 000 Podgorica, Montenegro, ozrens@t-com.me AMS 2010 Subject Classi#28;cation: 60J

  6. Microbial production of wax esters from highly branched alkanes

    DOE Patents [OSTI]

    Bogan, William W.; Sullivan, Wendy R.; Paterek, James R.

    2005-02-01T23:59:59.000Z

    A microbial culture and method for producing wax esters using highly branched alkanes. In accordance with one embodiment, the highly branched alkane is squalane.

  7. Electrochemical Branched-DNA Assay for Polymerase Chain Reaction...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Branched-DNA Assay for Polymerase Chain Reaction-Free Detection and Quantification of Oncogenes in Messenger RNA Electrochemical Branched-DNA Assay for Polymerase Chain...

  8. artery branch rupture: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Key words: Computational complexity; Branching programs; Time versus space; Lower bounds; Expander graphs; Ramanujan graphs 1 Jukna, Stasys 406 Branching, Capping, and Severing in...

  9. Journal of Engineering Mathematics Optimal discharging in a branched estuary Optimal discharging in a branched estuary

    E-Print Network [OSTI]

    that returns to the discharge site is less polluted than would 1 #12;Journal of Engineering Mathematics OptimalJournal of Engineering Mathematics Optimal discharging in a branched estuary Optimal discharging the proximity of the discharge site to the branching and upon how the rate of discharge is adjusted. Explicit

  10. donald a. WalkEr, Martha k. raynolds, MarcEl buchhorn and Jana l. PEircE

    E-Print Network [OSTI]

    Hartman, Chris

    and permafrost changes in the prudhoe Bay oiLfieLd, aLaska DonalD a. Walker, Martha k. raynolDs, yuri l. shur Jl (eds.) (2014) Landscape and permafrost changes in the Prudhoe Bay Oilfield, Alaska. alaska: Pipelines, powerlines, and processing facility in the Prudhoe Bay Oilfield, June 2014. Photo by M

  11. High Quality Graphene Formation on Improved 3C-SiC Epilayer Michael Walker,1,2

    E-Print Network [OSTI]

    UG-32 High Quality Graphene Formation on Improved 3C-SiC Epilayer Michael Walker,1 excellent electronic, mechanical, photonic properties and 2D nature, graphene is believed to be able to push the semiconductor industry into the beyond- CMOS era. Among all the synthesis methods, the Graphene-On-Silicon (GOS

  12. Aspen, Elk, and Fire in Northern Yellowstone Park William H. Romme; Monica G. Turner; Linda L. Wallace; Jennifer S. Walker

    E-Print Network [OSTI]

    Turner, Monica G.

    Aspen, Elk, and Fire in Northern Yellowstone Park William H. Romme; Monica G. Turner; Linda L of America ASPEN, ELK, AND FIRE IN NORTHERN YELLOWSTONE NATIONAL PARK1 WILLIAMH. ROMME Depu~trnent of B WALKER ALUConrlrltrr~g,Brg Tnnher. Monruilu 5901I USA Abstract. Most stands of trembling aspen (Populus

  13. FISCAL FORESIGHT: ANALYTICS AND ECONOMETRICS ERIC M. LEEPER, TODD B. WALKER, AND SHU-CHUN SUSAN YANG

    E-Print Network [OSTI]

    Hickman, Mark

    FISCAL FORESIGHT: ANALYTICS AND ECONOMETRICS ERIC M. LEEPER, TODD B. WALKER, AND SHU-CHUN SUSAN policy process. This paper develops an analytical framework to study the econometric implications from statistical innovations in conventional ways. Econometric analyses that fail to align agents

  14. -delayed proton emission branches in 43Cr

    SciTech Connect (OSTI)

    Pomorski, M. [University of Warsaw; Miernik, K. [University of Warsaw; Dominik, W. [University of Warsaw; Janas, Z. [University of Warsaw; Pfutzner, M. [University of Warsaw; Bingham, C. R. [University of Tennessee, Knoxville (UTK); Czyrkowski, H. [University of Warsaw; Cwiok, Mikolaj [Warsaw University; Darby, Iain [University of Tennessee, Knoxville (UTK); Dabrowski, Ryszard [Warsaw University; Ginter, T. N. [Michigan State University, East Lansing; Grzywacz, Robert Kazimierz [ORNL; Karny, M. [University of Warsaw; Korgul, A. [University of Warsaw; Kusmierz, W. [University of Warsaw; Liddick, Sean [University of Tennessee, Knoxville (UTK); Rajabali, M. M. [University of Tennessee, Knoxville (UTK); Rykaczewski, Krzysztof Piotr [ORNL; Stolz, A. [Michigan State University, East Lansing

    2011-01-01T23:59:59.000Z

    The + decay of very neutron-deficient 43Cr was studied by means of an imaging time projection chamber that allowed recording tracks of charged particles. Events of -delayed emission of one, two, and three protons were clearly identified. The absolute branching ratios for these channels were determined to be (81 4)%, (7.1 0.4)%, and (0.08 0.03)%, respectively. 43Cr is thus established as the second case in which the -3p decay occurs. Although the feeding to the proton-bound states in 43V is expected to be negligible, the large branching ratio of (12 4)% for decays without proton emission is found.

  15. Distance-Redshift in Inhomogeneous $Omega_0=1$ Friedmann-Lemaitre-Robertson-Walker Cosmology

    E-Print Network [OSTI]

    R. Kantowski; R. C. Thomas

    2001-06-18T23:59:59.000Z

    Distance--redshift relations are given in terms of associated Legendre functions for partially filled beam observations inspatially flat Friedmann-Lemaitre-Robertson-Walker (FLRW) cosmologies. These models are dynamically pressure-free, flat FLRW on large scales but, due to mass inhomogeneities, differ in their optical properties. The partially filled beam area-redshift equation is a Lame$^{\\prime}$ equation for arbitrary FLRW and is shown to simplify to the associated Legendre equation for the spatially flat, i.e. $\\Omega_0=1$ case. We fit these new analytic Hubble curves to recent supernovae (SNe) data in an attempt to determine both the mass parameter $\\Omega_m$ and the beam filling parameter $\

  16. Conditions and evidence for non-integrability in the Friedmann-Robertson-Walker Hamiltonian

    E-Print Network [OSTI]

    Sergi Simon

    2015-02-10T23:59:59.000Z

    This is an example of application of Ziglin-Morales-Ramis algebraic studies in Hamiltonian integrability, more speci?cally the result by Morales, Ramis and Sim\\'o on higher-order variational equations, to the well-known Friedmann-Robertson-Walker cosmological model. A previous paper by the author formalises said variational systems in such a way allowing the simple expression of notable elements of the differential Galois group needed to study integrability. Using this formalisation and an alternative method already used by other authors, we find sufficient conditions whose fulfillment would entail very simple proofs of non-integrability -- both for the complete Hamiltonian, a goal already achieved by other means by Coelho et al, and for a special open case attracting recent attention.

  17. PARALLEL ALGORITHM DESIGN FOR BRANCH AND BOUND

    E-Print Network [OSTI]

    Bader, David A.

    Chapter 5 PARALLEL ALGORITHM DESIGN FOR BRANCH AND BOUND David A. Bader Department of Electrical & Computer Engineering, University of New Mexico dbader@ece.unm.edu William E. Hart Discrete Mathematics communication net- work enables synchronous inter-processor communication. Grid com- pute platforms exemplify

  18. Improved strategies for branching on general disjunctions

    E-Print Network [OSTI]

    2009-05-05T23:59:59.000Z

    Jul 21, 2008 ... [1] used basis reduction to find good branching directions for certain classes of difficult integer ..... first, the size of the linear systems may become unmanageable in practice, and second, if we add up too many ...... Management Science 51(11), 1720–1732 (2005) ... ILOG: ILOG CPLEX 11.0 User's Manual.

  19. Influence of branch content on the microstructure of blends of linear and octene-branched polyethylene

    E-Print Network [OSTI]

    Hussein, Ibnelwaleed A.

    experimental densities of the two polymer melts. Initially, chains of LLDPE and HDPE were completely mixed POLYMER JOURNAL #12;short chain branching (SCB) [26]. Few studies have made use of m-LLDPE in blend

  20. A review of "Law, Crime and English Society, 1660-1830" by Norma Landau and "Crime, Gender and Social Order in Early Modern England" by Garthine Walker

    E-Print Network [OSTI]

    Sherman, Donovan

    2010-01-01T23:59:59.000Z

    postmodern philosophy and historical analysis energizes Law, Crime and English Society, 1660-1830, edited by Norma Landau, and Crime, Gender and Social Order in Early Modern England by Garthine Walker. While only the latter acknowledges its reviews 17...

  1. annual fourmile branch: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    space, referred to as the branching scheme. .... standard branch-and-bound both in terms of size of the enumeration tree and ...... of the fractional variable to be selected...

  2. abnormal branching pattern: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    space, referred to as the branching scheme. .... standard branch-and-bound both in terms of size of the enumeration tree and ...... of the fractional variable to be selected...

  3. Stochastic and deterministic causes of streamer branching in liquid dielectrics

    E-Print Network [OSTI]

    Jadidian, Jouya

    Streamer branching in liquid dielectrics is driven by stochastic and deterministic factors. The presence of stochastic causes of streamer branching such as inhomogeneities inherited from noisy initial states, impurities, ...

  4. Technology and Consumer Products Branch: program plan

    SciTech Connect (OSTI)

    None

    1980-03-01T23:59:59.000Z

    The primary objective of the Technology and Consumer Products Branch (TCP) is to encourage the development and commercialization of energy-efficient technologies and equipment used in buildings and purchased by consumers. The TCP program conducts technical research, development, and demonstration efforts jointly funded with private industry, educational institutions, utilities, and other Federal and state agencies as appropriate. All contracts, grants, or interagency agreements have the major thrust of developing products and disseminating information that will accelerate commercial availability of energy-efficient, low-cost, reliable technologies, techniques, and products suitable for use by consumers and design professionals in the residential and commercial building sectors. Specifically, the technologies pursued by the branch include heating and cooling systems, consumer appliances, lighting design, and systems. Projects for each of these areas are summarized briefly, and publications resulting from the activities are listed.

  5. Annual report, Basic Sciences Branch, FY 1991

    SciTech Connect (OSTI)

    Not Available

    1993-04-01T23:59:59.000Z

    This report summarizes the progress of the Basic Sciences Branch of the National Renewable Energy Laboratory (NREL) from October 1, 1990, through September 30, 1991. Seven technical sections of the report cover these main areas of NREL's in-house research: Semiconductor Crystal Growth, Amorphous Silicon Research, Polycrystalline Thin Films, III-V High-Efficiency Photovoltaic Cells, Solid-State Theory, Solid-State Spectroscopy, and Superconductivity. Each section explains the purpose and major accomplishments of the work in the context of the US Department of Energy's National Photovoltaic Research Program plans.

  6. Radiative Levitation in Hot Horizontal Branch Stars

    E-Print Network [OSTI]

    W. Landsman

    1999-06-08T23:59:59.000Z

    There is now considerable evidence that horizontal branch (HB) stars hotter than about 11,500 K experience an enormous enhancement of their photospheric iron abundance due to radiative levitation. In globular clusters, the photospheric iron abundance can reach values of [Fe/H] ~ +0.3, or up to two orders of magnitude higher than the cluster iron abundance. Model atmospheres which take into account the iron overabundance are needed for understanding the appearance of the HB in globular cluster color-magnitude diagrams (CMDs), for the derivation of accurate luminosities, gravities and masses, and for the ultraviolet spectral synthesis of old, metal-poor stellar populations.

  7. Annual report, Materials Science Branch, FY 1992

    SciTech Connect (OSTI)

    Padilla, S. [ed.

    1993-10-01T23:59:59.000Z

    This report summarizes the progress of the Materials Science Branch of the National Renewable Energy Laboratory (NREL) from October 1, 1991, through September 30, 1992. Six technical sections of the report cover these main areas of NREL`s in-house research: Crystal Growth, Amorphous Silicon, III-V High-Efficiency Photovoltaic Cells, Solid State Theory, Solid State Spectroscopy, and Program Management. Each section explains the purpose and major accomplishments of the work in the context of the US Department of Energy`s National Photovoltaic Research Program plans.

  8. Hawaii Wastewater Branch Webpage | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG|Information OpenEI ReferenceNoiseInformation StateBranch

  9. The branch with the furthest reach Z. Wei, S. Mandre and L. Mahadevan

    E-Print Network [OSTI]

    Mahadevan, L.

    sunlight. However, in the presence of gravity, branches droop: the droop is small for short stubby branches

  10. Information-Based Branching Schemes for Binary Linear Mixed ...

    E-Print Network [OSTI]

    2009-11-27T23:59:59.000Z

    For example, the first branching policy 0-0-0 performs ... We expected poor performance of this policy as it weights each active clause .... Hyderabad, India.

  11. Mr. John Kinneman, Chief Nuclear Materfals Branch Nuclear Regulatory...

    Office of Legacy Management (LM)

    111989 Mr. John Kinneman, Chief Nuclear Materfals Branch Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia. Pennsylvania 19406 Dear Mr. Kinneman: -;' .-. 'W...

  12. age horizontal branch: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Stars as an Age Indicator Astrophysics (arXiv) Summary: Surface temperature distribution of horizontal-branch (HB) stars is very sensitive to age in old stellar systems,...

  13. Optimization Online - A branch and bound algorithm for the global ...

    E-Print Network [OSTI]

    Jaroslav Fowkes

    2011-12-05T23:59:59.000Z

    Dec 5, 2011 ... A branch and bound algorithm for the global optimization of Hessian ... with a Lipschitz continuous Hessian over a compact, convex set.

  14. Fresh look at randomly branched polymers

    E-Print Network [OSTI]

    Hans-Karl Janssen; Olaf Stenull

    2009-11-09T23:59:59.000Z

    We develop a new, dynamical field theory of isotropic randomly branched polymers, and we use this model in conjunction with the renormalization group (RG) to study several prominent problems in the physics of these polymers. Our model provides an alternative vantage point to understand the swollen phase via dimensional reduction. We reveal a hidden Becchi-Rouet-Stora (BRS) symmetry of the model that describes the collapse ($\\theta$-)transition to compact polymer-conformations, and calculate the critical exponents to 2-loop order. It turns out that the long-standing 1-loop results for these exponents are not entirely correct. A runaway of the RG flow indicates that the so-called $\\theta^\\prime$-transition could be a fluctuation induced first order transition.

  15. Information-theoretic Approaches to Branching in Search Andrew Gilpin

    E-Print Network [OSTI]

    Sandholm, Tuomas W.

    constraints over sets of variables. 1 Introduction Search is a fundamental technique for problem solving in AIInformation-theoretic Approaches to Branching in Search Andrew Gilpin Computer Science Department of search algorithms. We introduce the information-theoretic paradigm for branching question selection

  16. INTRODUCTION Branched tubular epithelial structures are found in most

    E-Print Network [OSTI]

    Krasnow, Mark A.

    (respiratory) system, a branched tubular epithelium, is similarly amenable to cellular and genetic analysis to define the mechanisms of branching morphogenesis in vivo. The tracheal system delivers oxygen directly © The Company of Biologists Limited 1996 DEV7471 The tracheal (respiratory) system of Drosophila melanogaster

  17. PowerAware Branch Prediction: Characterization and Design

    E-Print Network [OSTI]

    Skadron, Kevin

    , pipeline gating yields little or no energy savings. Keywords Low­power design, energy­aware systems­point benchmarks to explore the role of branch predictor organization in power/energy/performance tradeoffs, to reduce overall energy consumption in the processor it is worthwhile to spend more power in the branch

  18. Power-Aware Branch Prediction: Characterization and Design

    E-Print Network [OSTI]

    Skadron, Kevin

    , pipeline gating yields little or no energy savings. Keywords Low-power design, energy-aware systems-point benchmarks to explore the role of branch predictor organization in power/energy/performance tradeoffs, to reduce overall energy consumption in the processor it is worthwhile to spend more power in the branch

  19. Radiolabeled dimethyl branched long chain fatty acid for heart imaging

    DOE Patents [OSTI]

    Knapp, Jr., Furn F. (Oak Ridge, TN); Goodman, Mark M. (Knoxville, TN); Kirsch, Gilbert (Woippy, FR)

    1988-08-16T23:59:59.000Z

    A radiolabeled long chain fatty acid for heart imaging that has dimethyl branching at one of the carbons of the chain which inhibits the extent to which oxidation can occur. The closer to the carboxyl the branching is positioned, the more limited the oxidation, thereby resulting in prolonged retention of the radiolabeled compound in the heart.

  20. Solving A Stochastic Generalized Assignment Problem with Branch and Price

    E-Print Network [OSTI]

    Morton, David

    tree, it was found that the linear programming relaxation of the master problem associated with column words: stochastic integer programming, generalized assignment problem, branch and price #12Solving A Stochastic Generalized Assignment Problem with Branch and Price David P. Morton Graduate

  1. Coupling a branching process to an infinite dimensional epidemic process

    E-Print Network [OSTI]

    Barbour, Andrew

    Coupling a branching process to an infinite dimensional epidemic process A. D. Barbour Universit¨at Z¨urich To Cindy Greenwood, for her 70th. Abstract Branching process approximation to the initial stages of an epi- demic process has been used since the 1950's as a technique for pro- viding stochastic

  2. Optimal branching asymmetry of hydrodynamic pulsatile trees

    E-Print Network [OSTI]

    Florens, Magali; Filoche, Marcel

    2010-01-01T23:59:59.000Z

    Most of the studies on optimal transport are done for steady state regime conditions. Yet, there exists numerous examples in living systems where supply tree networks have to deliver products in a limited time due to the pulsatile character of the flow. This is the case for mammals respiration for which air has to reach the gas exchange units before the start of expiration. We report here that introducing a systematic branching asymmetry allows to reduce the average delivery time of the products. It simultaneously increases its robustness against the unevitable variability of sizes related to morphogenesis. We then apply this approach to the human tracheobronchial tree. We show that in this case all extremities are supplied with fresh air, provided that the asymmetry is smaller than a critical threshold which happens to fit with the asymmetry measured in the human lung. This could indicate that the structure is adjusted at the maximum asymmetry level that allows to feed all terminal units with fresh air.

  3. Using EPR To Compare PEG-branch-nitroxide "Bivalent-Brush Polymers" and Traditional PEG Bottle-Brush Polymers: Branching

    E-Print Network [OSTI]

    Turro, Nicholas J.

    Using EPR To Compare PEG-branch-nitroxide "Bivalent-Brush Polymers" and Traditional PEG Bottle-Brush Polymers: Branching Makes a Difference Alan O. Burts, Yongjun Li, Aleksandr V. Zhukhovitskiy, Paresma R-brush random and block copolymers. Our results demonstrate that bivalent bottle-brush polymers have greater

  4. Adsorption of annealed branched polymers on curved surfaces

    E-Print Network [OSTI]

    Wagner, Jef; Zandi, Roya

    2015-01-01T23:59:59.000Z

    The behavior of annealed branched polymers near adsorbing surfaces plays a fundamental role in many biological and industrial processes. Most importantly single stranded RNA in solution tends to fold up and self-bind to form a highly branched structure. Using a mean field theory, we both perturbatively and numerically examine the adsorption of branched polymers on surfaces of several different geometries in a good solvent. Independent of the geometry of the wall, we observe that as branching density increases, surface tension decreases. However, we find a coupling between the branching density and curvature in that a further lowering of surface tension occurs when the wall curves towards the polymer, but the amount of lowering of surface tension decreases when the wall curves away from the polymer. We find that for branched polymers confined into spherical cavities, most of branch-points are located in the vicinity of the interior wall and the surface tension is minimized for a critical cavity radius. For bra...

  5. , 20130256, published 7 July 20143692014Phil. Trans. R. Soc. B Mario Vallejo-Marn, Catriona Walker, Philip Friston-Reilly, Lislie Sols-Montero and Boris Igic

    E-Print Network [OSTI]

    Igic, Boris

    , Philip Friston-Reilly, Lislie Solís-Montero and Boris Igic reveals a parallel shift in reproductive, Friston-Reilly P, Soli´s-Montero L, Igic B. 2014 Recurrent modification of floral morphology in reproductive strategy Mario Vallejo-Mari´n1, Catriona Walker1, Philip Friston-Reilly1, Lislie Soli´s-Montero1

  6. Establishment report: Reforestation of the Pen Branch corridor and delta

    SciTech Connect (OSTI)

    Nelson, E.A.; Dulohery, N.J.; Bunton, C.S.; Trettin, C.C.; McKee, W.H. Jr.

    1995-12-01T23:59:59.000Z

    This report documents the role of the USDA Forest Service in the reforestation of the Pen Branch floodplain and delta. The report focuses upon the reforestation activities and monitoring to characterize the sites.

  7. Upper limit on branching ratio the decay B. Bassalleck,

    E-Print Network [OSTI]

    National Laboratory (BNL). The decay forbidden angular momentum conservation neutrinos purely massless left## # cosmological constraints neutrino masses imply more stringent limits. branching 0 ## case massive Majorana Brookhaven National Laboratory, Upton, New 11973, USA TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia

  8. Quantum vs. Classical Read-once Branching Programs

    E-Print Network [OSTI]

    Martin Sauerhoff

    2005-09-23T23:59:59.000Z

    The paper presents the first nontrivial upper and lower bounds for (non-oblivious) quantum read-once branching programs. It is shown that the computational power of quantum and classical read-once branching programs is incomparable in the following sense: (i) A simple, explicit boolean function on 2n input bits is presented that is computable by error-free quantum read-once branching programs of size O(n^3), while each classical randomized read-once branching program and each quantum OBDD for this function with bounded two-sided error requires size 2^{\\Omega(n)}. (ii) Quantum branching programs reading each input variable exactly once are shown to require size 2^{\\Omega(n)} for computing the set-disjointness function DISJ_n from communication complexity theory with two-sided error bounded by a constant smaller than 1/2-2\\sqrt{3}/7. This function is trivially computable even by deterministic OBDDs of linear size. The technically most involved part is the proof of the lower bound in (ii). For this, a new model of quantum multi-partition communication protocols is introduced and a suitable extension of the information cost technique of Jain, Radhakrishnan, and Sen (2003) to this model is presented.

  9. FY 1991 Measurements and Characterization Branch annual report

    SciTech Connect (OSTI)

    Osterwald, C.R.; Dippo, P.C. [eds.

    1992-11-01T23:59:59.000Z

    The Measurements and Characterization Branch of the National Renewable Laboratory (NREL) provides comprehensive photovoltaic (PV) materials, devices, characterization, measurement, fabrication, modeling research, and support for the international PV research community, in the context of the US Department of Energy`s Photovoltaic Research Program goals. This report summarizes the progress of the Branch from 31 January 1991 through 31 January 1992. The eight technical sections present a succinct overview of the capabilities and accomplishments of each group in the Branch. The Branch is comprised of the following groups: Surface and interface Analysis; Materials Characterization; Device Development; Electro-optical Characterization; Advanced PV module Performance and Reliability Research; Cell Performance Characterization; Surface Interactions, Modification, and Stability; and FTIR Spectroscopic Research. The including measurements and tests of PV materials, cells, submodules, and modules. The report contains a comprehensive bibliography of 77 branch originated journal and conference publications, which were authored in collaboration with, or in support of, approximately 135 university, industrial, government, and in-house research groups.

  10. FY 1991 Measurements and Characterization Branch annual report

    SciTech Connect (OSTI)

    Osterwald, C.R.; Dippo, P.C. (eds.)

    1992-11-01T23:59:59.000Z

    The Measurements and Characterization Branch of the National Renewable Laboratory (NREL) provides comprehensive photovoltaic (PV) materials, devices, characterization, measurement, fabrication, modeling research, and support for the international PV research community, in the context of the US Department of Energy's Photovoltaic Research Program goals. This report summarizes the progress of the Branch from 31 January 1991 through 31 January 1992. The eight technical sections present a succinct overview of the capabilities and accomplishments of each group in the Branch. The Branch is comprised of the following groups: Surface and interface Analysis; Materials Characterization; Device Development; Electro-optical Characterization; Advanced PV module Performance and Reliability Research; Cell Performance Characterization; Surface Interactions, Modification, and Stability; and FTIR Spectroscopic Research. The including measurements and tests of PV materials, cells, submodules, and modules. The report contains a comprehensive bibliography of 77 branch originated journal and conference publications, which were authored in collaboration with, or in support of, approximately 135 university, industrial, government, and in-house research groups.

  11. Coulomb Branch and The Moduli Space of Instantons

    E-Print Network [OSTI]

    Stefano Cremonesi; Giulia Ferlito; Amihay Hanany; Noppadol Mekareeya

    2014-10-01T23:59:59.000Z

    The moduli space of instantons on C^2 for any simple gauge group is studied using the Coulomb branch of N=4 gauge theories in three dimensions. For a given simple group G, the Hilbert series of such an instanton moduli space is computed from the Coulomb branch of the quiver given by the over-extended Dynkin diagram of G. The computation includes the cases of non-simply-laced gauge groups G, complementing the ADHM constructions which are not available for exceptional gauge groups. Even though the Lagrangian description for non-simply laced Dynkin diagrams is not currently known, the prescription for computing the Coulomb branch Hilbert series of such diagrams is very simple. For instanton numbers one and two, the results are in agreement with previous works. New results and general features for the moduli spaces of three and higher instanton numbers are reported and discussed in detail.

  12. Coulomb Branch and The Moduli Space of Instantons

    E-Print Network [OSTI]

    Cremonesi, Stefano; Hanany, Amihay; Mekareeya, Noppadol

    2014-01-01T23:59:59.000Z

    The moduli space of instantons on C^2 for any simple gauge group is studied using the Coulomb branch of N=4 gauge theories in three dimensions. For a given simple group G, the Hilbert series of such an instanton moduli space is computed from the Coulomb branch of the quiver given by the over-extended Dynkin diagram of G. The computation includes the cases of non-simply-laced gauge groups G, complementing the ADHM constructions which are not available for exceptional gauge groups. Even though the Lagrangian description for non-simply laced Dynkin diagrams is not currently known, the prescription for computing the Coulomb branch Hilbert series of such diagrams is very simple. For instanton numbers one and two, the results are in agreement with previous works. New results and general features for the moduli spaces of three and higher instanton numbers are reported and discussed in detail.

  13. Beta-decay branching ratios of 62Ga

    E-Print Network [OSTI]

    A. Bey; B. Blank; G. Canchel; C. Dossat; J. Giovinazzo; I. Matea; V. Elomaa; T. Eronen; U. Hager; M. Hakala; A. Jokinen; A. Kankainen; I. Moore; H. Penttila; S. Rinta-Antila; A. Saastamoinen; T. Sonoda; J. Aysto; N. Adimi; G. De France; J. C. Thomas; G. Voltolini; T. Chaventré

    2008-04-17T23:59:59.000Z

    Beta-decay branching ratios of 62Ga have been measured at the IGISOL facility of the Accelerator Laboratory of the University of Jyvaskyla. 62Ga is one of the heavier Tz = 0, 0+ -> 0+ beta-emitting nuclides used to determine the vector coupling constant of the weak interaction and the Vud quark-mixing matrix element. For part of the experimental studies presented here, the JYFLTRAP facility has been employed to prepare isotopically pure beams of 62Ga. The branching ratio obtained, BR= 99.893(24)%, for the super-allowed branch is in agreement with previous measurements and allows to determine the ft value and the universal Ft value for the super-allowed beta decay of 62Ga.

  14. Measurement of Prominent {eta}-Decay Branching Fractions

    SciTech Connect (OSTI)

    Lopez, A.; Mehrabyan, S.; Mendez, H.; Ramirez, J. [University of Puerto Rico, Mayaguez, Puerto Rico 00681 (Puerto Rico); Ge, J. Y.; Miller, D. H.; Sanghi, B.; Shipsey, I. P. J.; Xin, B. [Purdue University, West Lafayette, Indiana 47907 (United States); Adams, G. S.; Anderson, M.; Cummings, J. P.; Danko, I.; Hu, D.; Moziak, B.; Napolitano, J. [Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); He, Q.; Insler, J.; Muramatsu, H.; Park, C. S. [University of Rochester, Rochester, New York 14627 (United States)] (and others)

    2007-09-21T23:59:59.000Z

    The decay {psi}(2S){yields}{eta}J/{psi} is used to measure, for the first time, all prominent {eta}-meson branching fractions with the same experiment in the same dataset, thereby providing a consistent treatment of systematics across branching fractions. We present results for {eta} decays to {gamma}{gamma}, {pi}{sup +}{pi}{sup -}{pi}{sup 0}, 3{pi}{sup 0}, {pi}{sup +}{pi}{sup -}{gamma} and e{sup +}e{sup -}{gamma}, accounting for 99.9% of all {eta} decays. The precision of several of the branching fractions and their ratios is improved. Two channels, {pi}{sup +}{pi}{sup -}{gamma} and e{sup +}e{sup -}{gamma}, show results that differ at the level of three standard deviations from those previously determined.

  15. Renormalized field theory of collapsing directed randomly branched polymers

    E-Print Network [OSTI]

    Hans-Karl Janssen; Frank Wevelsiep; Olaf Stenull

    2009-10-01T23:59:59.000Z

    We present a dynamical field theory for directed randomly branched polymers and in particular their collapse transition. We develop a phenomenological model in the form of a stochastic response functional that allows us to address several interesting problems such as the scaling behavior of the swollen phase and the collapse transition. For the swollen phase, we find that by choosing model parameters appropriately, our stochastic functional reduces to the one describing the relaxation dynamics near the Yang-Lee singularity edge. This corroborates that the scaling behavior of swollen branched polymers is governed by the Yang-Lee universality class as has been known for a long time. The main focus of our paper lies on the collapse transition of directed branched polymers. We show to arbitrary order in renormalized perturbation theory with $\\varepsilon$-expansion that this transition belongs to the same universality class as directed percolation.

  16. Higgs branch localization of 3d N=2 theories

    E-Print Network [OSTI]

    Masashi Fujitsuka; Masazumi Honda; Yutaka Yoshida

    2014-09-17T23:59:59.000Z

    We study N=2 supersymmetric gauge theories on squashed 3-sphere and S^1xS^2. Recent studies have shown that the partition functions in a class of N=2 theories have factorized forms in terms of vortex and anti-vortex partition functions by explicitly evaluating matrix integrals obtained from Coulomb branch localization. We directly derive this structure by performing Higgs branch localization. It turns out that more general N=2 theories have this factorization property. We also discuss the factorization of supersymmetric Wilson loop.

  17. Approximation methods in Loop Quantum Cosmology: From Gowdy cosmologies to inhomogeneous models in Friedmann-Robertson-Walker geometries

    E-Print Network [OSTI]

    Mercedes Martín-Benito; Daniel Martín-de Blas; Guillermo A. Mena Marugán

    2014-11-28T23:59:59.000Z

    We develop approximation methods in the hybrid quantization of the Gowdy model with linear polarization and a massless scalar field, for the case of three-torus spatial topology. The loop quantization of the homogeneous gravitational sector of the Gowdy model (according to the improved dynamics prescription) and the presence of inhomogeneities lead to a very complicated Hamiltonian constraint. Therefore, the extraction of physical results calls for the introduction of well justified approximations. We first show how to approximate the homogeneous part of the Hamiltonian constraint, corresponding to Bianchi I geometries, as if it described a Friedmann-Robertson-Walker (FRW) model corrected with anisotropies. This approximation is valid in the high-energy sector of the FRW geometry (concerning its contribution to the constraint) and for anisotropy profiles that are sufficiently smooth. In addition, for certain families of states associated to regimes of physical interest, with negligible effects of the anisotropies and small inhomogeneities, one can approximate the Hamiltonian constraint of the inhomogeneous system by that of an FRW geometry with a relatively simple matter content, and then obtain its solutions.

  18. RADIONUCLIDE INVENTORY AND DISTRIBUTION: FOURMILE BRANCH, PEN BRANCH, AND STEEL CREEK IOUS

    SciTech Connect (OSTI)

    Hiergesell, R.; Phifer, M.

    2014-04-29T23:59:59.000Z

    As a condition to the Department of Energy (DOE) Low Level Waste Disposal Federal Facility Review Group (LFRG) review team approving the Savannah River Site (SRS) Composite Analysis (CA), SRS agreed to follow up on a secondary issue, which consisted of the consolidation of several observations that the team concluded, when evaluated collectively, could potentially impact the integration of the CA results. This report addresses secondary issue observations 4 and 21, which identify the need to improve the CA sensitivity and uncertainty analysis specifically by improving the CA inventory and the estimate of its uncertainty. The purpose of the work described herein was to be responsive to these secondary issue observations by re-examining the radionuclide inventories of the Integrator Operable Units (IOUs), as documented in ERD 2001 and Hiergesell, et. al. 2008. The LFRG concern has been partially addressed already for the Lower Three Runs (LTR) IOU (Hiergesell and Phifer, 2012). The work described in this investigation is a continuation of the effort to address the LFRG concerns by re-examining the radionuclide inventories associated with Fourmile Branch (FMB) IOU, Pen Branch (PB) IOU and Steel Creek (SC) IOU. The overall approach to computing radionuclide inventories for each of the IOUs involved the following components: • Defining contaminated reaches of sediments along the IOU waterways • Identifying separate segments within each IOU waterway to evaluate individually • Computing the volume and mass of contaminated soil associated with each segment, or “compartment” • Obtaining the available and appropriate Sediment and Sediment/Soil analytical results associated with each IOU • Standardizing all radionuclide activity by decay-correcting all sample analytical results from sample date to the current point in time, • Computing representative concentrations for all radionuclides associated with each compartment in each of the IOUs • Computing the radionuclide inventory of each DOE-added radionuclide for the compartments of each IOU by applying the representative, central value concentration to the mass of contaminated soil • Totaling the inventory for all compartments associated with each of the IOUs Using this approach the 2013 radionuclide inventories for each sub-compartment associated with each of the three IOUs were computed, by radionuclide. The inventories from all IOU compartments were then rolled-up into a total inventory for each IOU. To put the computed estimate of radionuclide activities within FMB, PB, and SC IOUs into context, attention was drawn to Cs-137, which was the radionuclide with the largest contributor to the calculated dose to a member of the public at the perimeter of SRS within the 2010 SRS CA (SRNL 2010). The total Cs-137 activity in each of the IOUs was calculated to be 9.13, 1.5, and 17.4 Ci for FMB, PB, and SC IOUs, respectively. Another objective of this investigation was to address the degree of uncertainty associated with the estimated residual radionuclide activity that is calculated for the FMB, PB, and SC IOUs. Two primary contributing factors to overall uncertainty of inventory estimates were identified and evaluated. The first related to the computation of the mass of contaminated material in a particular IOU compartment and the second to the uncertainty associated with analytical counting errors. The error ranges for the mass of contaminated material in each IOU compartment were all calculated to be approximately +/- 9.6%, or a nominal +/-10%. This nominal value was added to the uncertainty associated with the analytical counting errors that were associated with each radionuclide, individually. This total uncertainty was then used to calculate a maximum and minimum estimated radionuclide inventories for each IOU.

  19. TRIBAND BRANCH LINE COUPLER USING DOUBLE-LORENTZ

    E-Print Network [OSTI]

    Nam, Sangwook

    TRIBAND BRANCH LINE COUPLER USING DOUBLE-LORENTZ TRANSMISSION LINES Hanseung Lee and Sangwook Nam) transmission lines (TL) provides two additional degrees of freedom in realizing triband microwave devices-Lorentz; transmission lines; triband; directional couplers 1. INTRODUCTION The concept of artificial TLs having

  20. Continuum Cascade Model: Branching Random Walk for Traveling Wave

    E-Print Network [OSTI]

    Yoshiaki Itoh

    2015-07-15T23:59:59.000Z

    The food web is a directed graph in which nodes label species and directed links represent the predation between species. Cascade models generate random food webs. The recursion to obtain the probability distribution of the longest chain length has the solution with traveling wave. We consider a branching random walk to study the asymptotic probability on the wave front.

  1. The Polymerase Chain Reaction and Branching Processes Fengzhu Sun

    E-Print Network [OSTI]

    Sun, Fengzhu - Sun, Fengzhu

    The Polymerase Chain Reaction and Branching Processes Fengzhu Sun Department of Mathematics, DRB is studied. We also study the distribution of the Hamming distance between two randomly chosen sequences long. The double-stranded DNA molecules are heated to near boiling temperature so that the double

  2. Power-Aware Branch Prediction: Characterization and Design

    E-Print Network [OSTI]

    Skadron, Kevin

    or no energy savings. Index Terms--Low-power design, energy-aware systems, processor architecture, branch organization in power/energy/performance trade offs for processor design. Even though the direction predictor, the PPD reduces local predictor power and energy dissipation by about 31 percent and overall processor

  3. A BRANCH-AND-PRICE ALGORITHM AND NEW TEST PROBLEMS ...

    E-Print Network [OSTI]

    Next, we describe several branching strategies, their effect on the pricing problem, and then ..... Sun Blade 2000 with 8.0 GB of memory and 2 Sun UltraSPARC-III+ CPUs running at 900 MHz ..... In Proceedings of IJCAI-99, Stockholm, Sweden,.

  4. Extending the Cell SPE with Energy Efficient Branch Prediction

    E-Print Network [OSTI]

    Kuzmanov, Georgi

    Extending the Cell SPE with Energy Efficient Branch Prediction Martijn Briejer1 , Cor Meenderinck1 , and Ben Juurlink2 1 Delft University of Technology, Delft, the Netherlands cor@ce.et.tudelft.nl 2 Technische Universit¨at Berlin, Berlin, Germany juurlink@cs.tu-berlin.de Abstract. Energy-efficient dynamic

  5. More Branch-and-Bound Experiments in Convex Nonlinear Integer ...

    E-Print Network [OSTI]

    pierre

    Sep 29, 2011 ... Department of Industrial Engineering and Management Sciences, Northwestern University,. Evanston, IL 60208 ... chooses the “best” one as the actual branching variable. “Reliability .... mean that all selection strategies perform similarly in practice. Indeed ...... User manual for filterSQP, 1998. University of ...

  6. How important are branching decisions: fooling MIP solvers

    E-Print Network [OSTI]

    2014-04-21T23:59:59.000Z

    Apr 21, 2014 ... building Gk by adding one P1 and k ? 1 P2's in a disconnected fashion. ... row permutations (to reduce the impact of performance variability [11]). ... cost branching is a history-based rule that tries to predict the score that strong.

  7. Gas compressor with side branch absorber for pulsation control

    DOE Patents [OSTI]

    Harris, Ralph E. (San Antonio, TX); Scrivner, Christine M. (San Antonio, TX); Broerman, III, Eugene L. (San Antonio, TX)

    2011-05-24T23:59:59.000Z

    A method and system for reducing pulsation in lateral piping associated with a gas compressor system. A tunable side branch absorber (TSBA) is installed on the lateral piping. A pulsation sensor is placed in the lateral piping, to measure pulsation within the piping. The sensor output signals are delivered to a controller, which controls actuators that change the acoustic dimensions of the SBA.

  8. Electrical Transport through a Single Nanoscale Semiconductor Branch Point

    E-Print Network [OSTI]

    Cui, Yi

    such as light- emitting diodes10-12 and solar cells.13,14 Already, the incor- poration of branched nanostructures has yielded significant improvements in nanorod/polymer solar cells, where the specific pathways) while keeping the third arm floating are presented in the main panel of Figure 1. The I-V curves show

  9. Convergence in gradient systems with branching of equilibria

    SciTech Connect (OSTI)

    Galaktionov, V A [University of Bath (United Kingdom); Pohozaev, Stanislav I [Steklov Mathematical Institute, Russian Academy of Sciences (Russian Federation); Shishkov, A E [Institute of Applied Mathematics and Mechanics of the National Academy of Sciences of Ukraine, Donetsk (Ukraine)

    2007-06-30T23:59:59.000Z

    The basic model is a semilinear elliptic equation with coercive C{sup 1} non-linearity: {delta}{psi}+f({psi})=0 in {omega}, {psi}=0 on {partial_derivative}{omega}, where {omega} subset of R{sup N} is a bounded smooth domain. The main hypothesis (H{sub R}) about resonance branching is as follows: if a branching of equilibria occurs at a point {psi} with k-dimensional kernel of the linearized operator {delta}+f'({psi})I, then the branching subset S{sub k} at {psi} is a locally smooth k-dimensional manifold. For N=1 the first result on the stabilization to a single equilibrium is due to Zelenyak (1968). It is shown that Zelenyak's approach, which is based on the analysis of Lyapunov functions, can be extended to general gradient systems in Hilbert spaces with smooth resonance branching. The case of asymptotically small non-autonomous perturbations of such systems is also considered. The approach developed here represents an alternative to Hale's stabilization method (1992) and other similar techniques in the theory of gradient systems. Bibliography: 32 titles.

  10. A New Analysis of X-Ray Adsorption Branching Ratios: Use ofRussell...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Analysis of X-Ray Adsorption Branching Ratios: Use of Russell-Saunders Coupling . A New Analysis of X-Ray Adsorption Branching Ratios: Use of Russell-Saunders Coupling . Abstract:...

  11. aureobasidium-derived soluble branched: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    space, referred to as the branching scheme. .... standard branch-and-bound both in terms of size of the enumeration tree and ...... of the fractional variable to be selected...

  12. Characterization of sparsely long chain branched polycarbonate by a combination of solution, rheology and

    E-Print Network [OSTI]

    Keunings, Roland

    Characterization of sparsely long chain branched polycarbonate by a combination of solution branched polycarbonate and fractions thereof by a combination of solution and rheological techniques the model is calibrated for polydisperse linear polycarbonate, discrepancies between the predicted

  13. Relevance of complex branch points for partial wave analysis

    SciTech Connect (OSTI)

    Ceci, S.; Svarc, A. [Rudjer Boskovic Institute, Bijenicka 54, HR-10000 Zagreb (Croatia); Doering, M. [HISKP (Theorie), Universitaet Bonn, Nussallee 14-16, D-53115 Bonn (Germany); Hanhart, C.; Krewald, S. [Institut fuer Kernphysik and Juelich Center for Hadron Physics, Forschungszentrum Juelich, D-52425 Juelich (Germany); Institute for Advanced Simulation, Forschungszentrum Juelich, D-52425 Juelich (Germany); Meissner, U.-G. [HISKP (Theorie), Universitaet Bonn, Nussallee 14-16, D-53115 Bonn (Germany); Institut fuer Kernphysik and Juelich Center for Hadron Physics, Forschungszentrum Juelich, D-52425 Juelich (Germany); Institute for Advanced Simulation, Forschungszentrum Juelich, D-52425 Juelich (Germany)

    2011-07-15T23:59:59.000Z

    A central issue in hadron spectroscopy is to deduce--and interpret--resonance parameters, namely, pole positions and residues, from experimental data, for those are the quantities to be compared to lattice QCD or model calculations. However, not every structure in the observables derives from a resonance pole: the origin might as well be branch points, either located on the real axis (when a new channel composed of stable particles opens) or in the complex plane (when at least one of the intermediate particles is unstable). In this paper we demonstrate first the existence of such branch points in the complex plane and then show on the example of the {pi}N P{sub 11} partial wave that it is not possible to distinguish the structures induced by the latter from a true pole signal based on elastic data alone.

  14. Branching Fraction Measurement of B to omega l nu decays

    SciTech Connect (OSTI)

    Lees, J.P.; Poireau, V.; Tisserand, V.; /Annecy, LAPP; Garra Tico, J.; Grauges, E.; /Barcelona U., ECM; Palano, A.; /Bari U. /INFN, Bari; Eigen, G.; Stugu, B.; /Bergen U.; Brown, D.N.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; /LBL, Berkeley /UC, Berkeley; Koch, H.; Schroeder, T.; /Ruhr U., Bochum; Asgeirsson, D.J.; Hearty, C.; Mattison, T.S.; McKenna, J.A.; So, R.Y.; /British Columbia U.; Khan, A.; /Brunel U.; Blinov, V.E.; /Novosibirsk, IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Harvey Mudd Coll. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U.; /more authors..

    2012-06-13T23:59:59.000Z

    We present a measurement of the B{sup +} {yields} {omega}{ell}{sup +}{nu} branching fraction based on a sample of 467 million B{bar B} pairs recorded by the BABAR detector at the SLAC PEP-II e{sup +}e{sup -} collider. We observe 1041 {+-} 133 signal decays, corresponding to a branching fraction of {Beta}(B{sup +} {yields} {omega}{ell}{sup +}{nu}) = (1.15 {+-} 0.15 {+-} 0.12) x 10{sup -4}, where the first error is statistical and the second is systematic. The dependence of the decay rate on q{sup 2}, the momentum transfer squared to the lepton system, is compared to QCD predictions of the form factors based on a quark model and light-cone sum rules.

  15. Measurement of the branching fractions of ?(+)(c)?pKn(?)

    E-Print Network [OSTI]

    Baringer, Philip S.

    1998-03-01T23:59:59.000Z

    PHYSICAL REVIEW D 1 APRIL 1998VOLUME 57, NUMBER 7Measurement of the branching fractions of Lc1?pK¯ n?p? M. S. Alam,1 S. B. Athar,1 Z. Ling,1 A. H. Mahmood,1 H. Severini,1 S. Timm,1 F. Wappler,1 A. Anastassov,2 J. E. Duboscq,2 D. Fujino,2,* K. K. Gan...6 le Physics, Canada , Que´bec, Canada H3A 2T8 le Physics, Canada a, New York 14850 wrence, Kansas 66045 neapolis, Minnesota 55455 ublished 18 February 1998! SR, we report new measurements of the branching into pK2p1p0, pK¯ 0, pK¯ 0p1p2, and pK¯ 0p0...

  16. The genealogy of branching Brownian motion with absorption

    E-Print Network [OSTI]

    Julien Berestycki; Nathanaël Berestycki; Jason Schweinsberg

    2013-03-14T23:59:59.000Z

    We consider a system of particles which perform branching Brownian motion with negative drift and are killed upon reaching zero, in the near-critical regime where the total population stays roughly constant with approximately N particles. We show that the characteristic time scale for the evolution of this population is of order $(\\log N)^3$, in the sense that when time is measured in these units, the scaled number of particles converges to a variant of Neveu's continuous-state branching process. Furthermore, the genealogy of the particles is then governed by a coalescent process known as the Bolthausen-Sznitman coalescent. This validates the nonrigorous predictions by Brunet, Derrida, Muller and Munier for a closely related model.

  17. The genealogy of extremal particles of Branching Brownian Motion

    E-Print Network [OSTI]

    Arguin, Louis-Pierre; Kistler, Nicola

    2010-01-01T23:59:59.000Z

    Branching Brownian Motion describes a system of particles which diffuse in space and split into offsprings according to a certain random mechanism. In virtue of the groundbreaking work by M. Bramson on the convergence of solutions of the Fisher-KPP equation to traveling waves, the law of the rightmost particle in the limit of large times is rather well understood. In this work, we address the full statistics of the extremal particles (first-, second-, third- etc. largest). In particular, we prove that in the large $t-$limit, such particles descend with overwhelming probability from ancestors having split either within a distance of order one from time $0$, or within a distance of order one from time $t$. The approach relies on characterizing, up to a certain level of precision, the paths of the extremal particles. As a byproduct, a heuristic picture of Branching Brownian Motion ``at the edge'' emerges, which sheds light on the still unknown limiting extremal process.

  18. The genealogy of branching Brownian motion with absorption

    E-Print Network [OSTI]

    Berestycki, Julien; Schweinsberg, Jason

    2010-01-01T23:59:59.000Z

    We consider a system of particles which perform branching Brownian motion with negative drift and are killed upon reaching zero, in the near-critical regime where the total population stays roughly constant with approximately N particles. We show that the characteristic time scale for the evolution of this population is of order (log N)^3, in the sense that when time is measured in these units, the scaled number of particles converges to a variant of Neveu's continuous-state branching process. Furthermore, the genealogy of the particles is then governed by a coalescent process known as the Bolthausen-Sznitman coalescent. This validates the non-rigorous predictions by Brunet, Derrida, Muller, and Munier for a closely related model.

  19. Branch dependence in the "consistent histories" approach to quantum mechanics

    E-Print Network [OSTI]

    Thomas Müller

    2006-11-12T23:59:59.000Z

    In the consistent histories formalism one specifies a family of histories as an exhaustive set of pairwise exclusive descriptions of the dynamics of a quantum system. We define branching families of histories, which strike a middle ground between the two available mathematically precise definitions of families of histories, viz., product families and Isham's history projector operator formalism. The former are too narrow for applications, and the latter's generality comes at a certain cost, barring an intuitive reading of the ``histories''. Branching families retain the intuitiveness of product families, they allow for the interpretation of a history's weight as a probability, and they allow one to distinguish two kinds of coarse-graining, leading to reconsidering the motivation for the consistency condition.

  20. ? b ? ? ? + ? ? form factors and differential branching fraction from lattice QCD

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Detmold, William; Lin, C.-J. David; Meinel, Stefan; Wingate, Matthew

    2013-04-01T23:59:59.000Z

    We present the first lattice QCD determination of the ?b?? transition form factors that govern the rare baryonic decays ?b??l?l? at leading order in heavy-quark effective theory. Our calculations are performed with 2+1 flavors of domain-wall fermions, at two lattice spacings and with pion masses down to 227 MeV. Three-point functions with a wide range of source-sink separations are used to extract the ground-state contributions. The form factors are extrapolated to the physical values of the light-quark masses and to the continuum limit. We use our results to calculate the differential branching fractions for ?b??l?l? with l=e, ?, ? within the standard model. We find agreement with a recent CDF measurement of the ?b?????? differential branching fraction.

  1. Central Limit Theorem for Branching Random Walks in Random Environment

    E-Print Network [OSTI]

    Nobuo Yoshida

    2007-12-05T23:59:59.000Z

    We consider branching random walks in $d$-dimensional integer lattice with time-space i.i.d. offspring distributions. When $d \\ge 3$ and the fluctuation of the environment is well moderated by the random walk, we prove a central limit theorem for the density of the population, together with upper bounds for the density of the most populated site and the replica overlap. We also discuss the phase transition of this model in connection with directed polymers in random environment.

  2. The genealogy of branching Brownian motion with absorption by Julien Berestycki

    E-Print Network [OSTI]

    Berestycki, Julien

    The genealogy of branching Brownian motion with absorption by Julien Berestycki , Nathana-state branching process. Furthermore, the genealogy of the particles is then governed by a coalescent process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 7.2 Flows describing the genealogy of branching Brownian motion . . . . . . . . . . . . 65 7

  3. Interior-Branch and Bootstrap Tests of Phylogenetic Trees Tatyana Sitnikova, Andrey Rzhetsky, and Masatoshi Nei

    E-Print Network [OSTI]

    Nei, Masatoshi

    Interior-Branch and Bootstrap Tests of Phylogenetic Trees Tatyana Sitnikova, Andrey Rzhetsky University We have compared statistical properties of the interior-branch and bootstrap tests of phylogenetic of a predetermined topology, the interior- branch and bootstrap tests provide the confidence values, PC and PB

  4. A BreakEven Formulation for Evaluating Branch Predictor Energy Efficiency #

    E-Print Network [OSTI]

    Co, Michele

    demonstrated that a better branch pre­ dictor can increase the energy­efficiency of the system, even if the new a simple, effective metric for eval­ uating the tradeoff between processor energy­efficiency and branch and an energy­efficiency target, we are able to evaluate the energy­efficiency of several existing branch

  5. Dimensional Reduction and Crossover to Mean-Field Behavior for Branched Polymers

    E-Print Network [OSTI]

    Dimensional Reduction and Crossover to Mean-Field Behavior for Branched Polymers John Z. Imbrie will review recent results on dimensional reduction for branched polymers, and discuss implications for critical phenomena. Parisi and Sourlas argued in [PS81] that branched polymers fall into the universal- ity

  6. REU PROJECT ON BRANCH POLYMERS SARA BILLEY, TOM BOOTHBY, MORGAN EICHWALD, AND CHRIS FOX

    E-Print Network [OSTI]

    Billey, Sara

    REU PROJECT ON BRANCH POLYMERS SARA BILLEY, TOM BOOTHBY, MORGAN EICHWALD, AND CHRIS FOX 1. A branched polymer of order n in R2 is obtained by plac- ing these disks in the plane in any configuration so at the origin. Branched polymers have been studied in con- nection with molecular chemistry, statistical physics

  7. SURVIVAL PROBABILITY OF THE BRANCHING RANDOM WALK KILLED BELOW A LINEAR BOUNDARY

    E-Print Network [OSTI]

    Boyer, Edmond

    SURVIVAL PROBABILITY OF THE BRANCHING RANDOM WALK KILLED BELOW A LINEAR BOUNDARY JEAN B´ERARD, JEAN on the asymptotic behavior of the survival probability of the branching random walk killed below a linear boundary- Derrida theory of stochastic fronts are discussed. 1. Introduction Consider a real-valued branching random

  8. Branching morphogenesis of the lung: new molecular insights into an old

    E-Print Network [OSTI]

    Chuang, Pao-Tien

    Branching morphogenesis of the lung: new molecular insights into an old problem Pao-Tien Chuang1 It has been known for decades that branching morpho- genesis of the lung is mediated through reciprocal between major signaling path- ways during branching morphogenesis of the lung in mice. It has been known

  9. A Conceptual Restoration Plan and Tidal Hydrology Assessment for Reconnecting Spring Branch Creek to Suisun Marsh, Solano County, California

    E-Print Network [OSTI]

    Olson, Jessica J.

    2012-01-01T23:59:59.000Z

    for Reconnecting Spring Branch Creek to Suisun Marsh, SolanoFramework CHAPTER 2. SPRING BRANCH CREEK SITE ASSESSMENT 2.1Model for Spring Branch Creek Following Reconnection CHAPTER

  10. A Tidal Hydrology Assessment for Reconnecting Spring Branch Creek to Suisun Marsh, Solano County CA: Predicting the Impact to the Federally Listed Plant Soft Bird's Beak

    E-Print Network [OSTI]

    Olson, Jessica J.

    2011-01-01T23:59:59.000Z

    population in Spring Branch Creek has experienced decline inand up the Spring Branch Creek gradient on its own. Withor up the Spring Branch Creek gradient is necessary. 12

  11. Low-mass evolution from HE ignition to beyond the horizontal branch

    SciTech Connect (OSTI)

    Despain, K.

    1980-01-01T23:59:59.000Z

    The evolution of an 0.6 M/sub solar mass/ stellar model during core helium burning is presented. Following the off-center ignition of helium in the core flash, the star remains on the red giant branch for > 10/sup 6/ years, undergoing twelve additional flashes. After leaving the giant branch, the star evolves on the horizontal branch for 8.15 x 10/sup 7/ years before returning to the giant branch and undergoing strong helium-shell flashes. The implications for horizontal branch and RR Lyrae stars are discussed.

  12. Interview with John Walker

    E-Print Network [OSTI]

    Walker, John E

    2008-08-13T23:59:59.000Z

    , of rotary action produced by consumption of electrical energy, the proton motive force being used to generate directation, rather like water flowing through a dynamo generates electricity; it now turns out that this rotary principle is quite widely dispersed... and to move the Institute to the Cote d'Azur; managed to get Government funding in the end 51:46:00 Georges Cohen, with whom I worked, could see my difficulty and helped me to come back to England; came to Cambridge Easter 1974 to a course funded by EMBO...

  13. Howie Choset Sean Walker

    E-Print Network [OSTI]

    LaValle, Steven M.

    Generalized Voronoi Graph Abstract This paper prescribes an incremental procedure to construct roadmaps of unknown environments. Recall that a roadmap is a ge- ometric structure that a robot uses to plan a path between two points in an environment. If the robot knows the roadmap, then it knows the environment

  14. An algorithm for solving branching, multi-stage optimization systems

    E-Print Network [OSTI]

    Burns, Jack Patton

    1972-01-01T23:59:59.000Z

    August 1972 ABSTRACT An Algor1thm For Solv1ng Branching, Multistage Optimization Systems. (August, 1972) Jack Patton Burns, B. S. , University of Arizona; B. S. , Texas A&M Un1versity Directed by: Dr. Wilbur L. Meier In recent years, the concern... or continuous and the stage returns and transition functions can be linear or nonlinear. For cont1nuous systems, the algorithm uses a Fibonacc1 search routine. A cho1ce of three optional outputs 1s available depending on the information des1red by the user...

  15. Farmers Branch, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania: EnergyExolisFairway, Kansas:Maine:FarinelloBranch, Texas:

  16. Hawaii Department of Health Clean Air Branch Webpage | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetec AG| OpenInformationHartsville,NewOpenInformation Clean Air Branch

  17. Advanced Branching Control and Characterization of Inorganic Semiconducting Nanocrystals

    SciTech Connect (OSTI)

    Hughes, Steven Michael

    2007-12-31T23:59:59.000Z

    The ability to finely tune the size and shape of inorganic semiconducting nanocrystals is an area of great interest, as the more control one has, the more applications will be possible for their use. The first two basic shapes develped in nanocrystals were the sphere and the anistropic nanorod. the II_VI materials being used such as Cadmium Selenide (CdSe) and Cadmium Telluride (CdTe), exhibit polytypism, which allows them to form in either the hexagonally packed wurtzite or cubically packed zinc blende crystalline phase. The nanorods are wurtzite with the length of the rod growing along the c-axis. As this grows, stacking faults may form, which are layers of zinc blende in the otherwise wurtzite crystal. Using this polytypism, though, the first generation of branched crystals were developed in the form of the CdTe tetrapod. This is a nanocrystal that nucleates in the zincblend form, creating a tetrahedral core, on which four wurtzite arms are grown. This structure opened up the possibility of even more complex shapes and applications. This disseration investigates the advancement of branching control and further understanding the materials polytypism in the form of the stacking faults in nanorods.

  18. Vegetation survey of Pen Branch and Four Mile Creek wetlands

    SciTech Connect (OSTI)

    Not Available

    1992-10-01T23:59:59.000Z

    One hundred-fifty plots were recently sampled (vegetational sampling study) at the Savannah River Site (SRS). An extensive characterization of the vascular flora, in four predetermined strata (overstory, Understory, shrub layer, and ground cover), was undertaken to determine dominance, co-dominance, and the importance value (I.V.) of each species. These results will be used by the Savannah River Laboratory (SRL) to evaluate the environmental status of Four Mile Creek, Pen Branch, and two upland pine stands. Objectives of this study were to: Describe in detail the plant communities previously mapped with reference to the topography and drainage, including species of plants present: Examine the successional trends within each sampling area and describe the extent to which current vegetation communities have resulted from specific earlier vegetation disturbances (e.g., logging and grazing); describe in detail the botanical field techniques used to sample the flora; describe the habitat and location of protected and/or rare species of plants; and collect and prepare plant species as herbarium quality specimens. Sampling was conducted at Four Mile Creek and Pen Branch, and in two upland pine plantations of different age growth.

  19. Vegetation survey of Pen Branch and Four Mile Creek wetlands

    SciTech Connect (OSTI)

    Not Available

    1992-01-01T23:59:59.000Z

    One hundred-fifty plots were recently sampled (vegetational sampling study) at the Savannah River Site (SRS). An extensive characterization of the vascular flora, in four predetermined strata (overstory, Understory, shrub layer, and ground cover), was undertaken to determine dominance, co-dominance, and the importance value (I.V.) of each species. These results will be used by the Savannah River Laboratory (SRL) to evaluate the environmental status of Four Mile Creek, Pen Branch, and two upland pine stands. Objectives of this study were to: Describe in detail the plant communities previously mapped with reference to the topography and drainage, including species of plants present: Examine the successional trends within each sampling area and describe the extent to which current vegetation communities have resulted from specific earlier vegetation disturbances (e.g., logging and grazing); describe in detail the botanical field techniques used to sample the flora; describe the habitat and location of protected and/or rare species of plants; and collect and prepare plant species as herbarium quality specimens. Sampling was conducted at Four Mile Creek and Pen Branch, and in two upland pine plantations of different age growth.

  20. Arcing fault in sub-distribution branch circuits

    SciTech Connect (OSTI)

    Parise, G.; Grasseli, U.; Luozzo, V. Di (Univ. di Roma, Rome (Italy). Dept. di Ingegneria Elettrica)

    1993-04-01T23:59:59.000Z

    It's well known the importance of short-circuit current evaluation for the design of any power system. Every system is subject to faults, moreover short-circuits and ground faults can be expected in any point. Even if the maximum and minimum values are generally defined with reference at a bolted-fault, bolted short-circuits are rare and the fault usually involves arcing and burning; particularly the limit value of minimum short-circuit depends really on arcing-fault. In earlier experimental investigations into the functional simulation of insulation loss, in branch circuit conductors, the authors chose to normalize the arcing-fault simulation to be used in laboratory tests. This conventional simulation allows characterization of this intrinsically random phenomenon by means of a probabilistic approach, in order to define in statistical terms the expected short circuit value. The authors examine more closely the arcing-fault in the design of sub distribution branch-circuits as weak points of the installation. In fact, what they propose are straightforward criteria, whether in the structure of the system or in the coordination of protection, which afford a more rational control on arcing-fault.

  1. The Effect of Sedimentation on Plutonium Transport in Fourmile Branch

    SciTech Connect (OSTI)

    Chen, K.F.

    2002-02-21T23:59:59.000Z

    The major mechanisms of radioactive material transport and fate in surface water are sources, dilution, advection and dispersion of radionuclides by flow and surface waves, radionuclide decay, and interaction between sediment and radionuclides. STREAM II, an aqueous transport module of the Savannah River Site emergency response WIND system, accounts for the source term, and the effects of dilution, advection and dispersion. Although the model has the capability to account for nuclear decay, due to the short time interval of interest for emergency response, the effect of nuclear decay is very small and so it is not employed. The interactions between the sediment and radionuclides are controlled by the flow conditions and physical and chemical characteristics of the radionuclides and the sediment constituents. The STREAM II version used in emergency response must provide results relatively quickly; it therefore does not model the effects of sediment deposition/resuspension. This study estimates the effects of sediment deposition/resuspension on aqueous plutonium transport in Fourmile Branch. There are no measured data on plutonium transport through surface water available for direct model calibration. Therefore, a literature search was conducted to find the range of plutonium partition coefficients based on laboratory experiments and field measurements. A sensitivity study of the calculated plutonium peak concentrations as a function of the input parameter of partition coefficient was then performed. Finally, an estimation of the plutonium partition coefficient was made for the Fourmile Branch.

  2. TERZAN 5: AN ALTERNATIVE INTERPRETATION FOR THE SPLIT HORIZONTAL BRANCH

    SciTech Connect (OSTI)

    D'Antona, F.; Ventura, P.; Carini, R.; Di Criscienzo, M. [INAF-Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monteporzio (Italy); Caloi, V. [INAF-IASF-Roma, via Fosso del Cavaliere 100, I-00133 Roma (Italy); D'Ercole, A. [INAF-Osservatorio Astronomico di Bologna, via Ranzani 1, I-40127 Bologna (Italy); Vesperini, E. [Department of Physics, Drexel University, Philadelphia, PA 19104 (United States)

    2010-06-01T23:59:59.000Z

    We consider the horizontal branch (HB) of the globular cluster Terzan 5, recently shown to be split into two parts, the fainter one ({delta}M{sub K} {approx} 0.3 mag) having a lower metallicity than the more luminous. Both features show that it contains at least two stellar populations. The separation in magnitude has been ascribed to an age difference of {approx}6 Gyr and interpreted as the result of an atypical evolutionary history for this cluster. We show that the observed HB morphology is also consistent with a model in which the bright HB is composed of second generation stars that are metal enriched and with a helium mass fraction larger (by {delta}Y {approx} 0.07) than that of first generation stars populating the fainter part of the HB. Terzan 5 would therefore be anomalous, compared to most 'normal' clusters hosting multiple populations, only because its second generation is strongly contaminated by supernova ejecta; the previously proposed prolonged period of star formation, however, is not required. The iron enrichment of the bright HB can be ascribed either to contamination from Type Ia supernova ejecta of the low-iron, helium-rich, ejecta of the massive asymptotic giant branch stars of the cluster, or to its mixing with gas, accreting on the cluster from the environment, that has been subject to fast metal enrichment due to its proximity with the galactic bulge. The model proposed here requires only a small age difference of {approx}100 Myr.

  3. Branching Restrictions, Financial Market Integration, and Firm Growth: Evidence from U.S. Banking Deregulation

    E-Print Network [OSTI]

    Krishnamurthy, Prasad

    2009-01-01T23:59:59.000Z

    Calomiris, Charles, U.S. Banking Deregulation in HistoricalEvidence From Bank Branch Deregulation," Quarterly JournalStrahan, \\What Drives Deregulation: Economics and Politics

  4. A Branch and Price Approach to the k-Clustering Minimum Biclique ...

    E-Print Network [OSTI]

    2011-09-16T23:59:59.000Z

    aDipartimento di Matematica, Universit`a degli Studi di Pavia, Via Ferrata 1, 27100, ... work by developing a Branch and Price algorithm that embeds a new ...

  5. Electrodeposition of InSb branched nanowires: Controlled growth with structurally tailored properties

    SciTech Connect (OSTI)

    Das, Suprem R.; Mohammad, Asaduzzaman; Janes, David B., E-mail: janes@ecn.purdue.edu [School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States); Akatay, Cem [School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States); Khan, Mohammad Ryyan; Alam, Muhammad A. [School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Maeda, Kosuke [Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta–cho, Midori-ku, Yokohama 226-8502 (Japan); Advanced Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Deacon, Russell S.; Ishibashi, Koji [Advanced Device Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan); Chen, Yong P. [School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States); Department of Physics and Astronomy, Purdue University, West Lafayette, Indiana 47907 (United States); Sands, Timothy D. [School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States)

    2014-08-28T23:59:59.000Z

    In this article, electrodeposition method is used to demonstrate growth of InSb nanowire (NW) arrays with hierarchical branched structures and complex morphology at room temperature using an all-solution, catalyst-free technique. A gold coated, porous anodic alumina membrane provided the template for the branched NWs. The NWs have a hierarchical branched structure, with three nominal regions: a “trunk” (average diameter of 150?nm), large branches (average diameter of 100?nm), and small branches (average diameter of sub-10?nm to sub-20?nm). The structural properties of the branched NWs were studied using scanning transmission electron microscopy, transmission electron microscopy, scanning electron microscopy, x-ray diffraction, energy dispersive x-ray spectroscopy, and Raman spectroscopy. In the as-grown state, the small branches of InSb NWs were crystalline, but the trunk regions were mostly nanocrystalline with an amorphous boundary. Post-annealing of NWs at 420?°C in argon produced single crystalline structures along ?311? directions for the branches and along ?111? for the trunks. Based on the high crystallinity and tailored structure in this branched NW array, the effective refractive index allows us to achieve excellent antireflection properties signifying its technological usefulness for photon management and energy harvesting.

  6. Localization for Branching Random Walks in Random Environment

    E-Print Network [OSTI]

    Yueyun Hu; Nobuo Yoshida

    2007-12-05T23:59:59.000Z

    We consider branching random walks in $d$-dimensional integer lattice with time-space i.i.d. offspring distributions. This model is known to exhibit a phase transition: If $d \\ge 3$ and the environment is "not too random", then, the total population grows as fast as its expectation with strictly positive probability. If,on the other hand, $d \\le 2$, or the environment is ``random enough", then the total population grows strictly slower than its expectation almost surely. We show the equivalence between the slow population growth and a natural localization property in terms of "replica overlap". We also prove a certain stronger localization property, whenever the total population grows strictly slower than its expectation almost surely.

  7. Oscillating side-branch enhancements of thermoacoustic heat exchangers

    DOE Patents [OSTI]

    Swift, Gregory W.

    2003-05-13T23:59:59.000Z

    A regenerator-based engine or refrigerator has a regenerator with two ends at two different temperatures, through which a gas oscillates at a first oscillating volumetric flow rate in the direction between the two ends and in which the pressure of the gas oscillates, and first and second heat exchangers, each of which is at one of the two different temperatures. A dead-end side branch into which the gas oscillates has compliance and is connected adjacent to one of the ends of the regenerator to form a second oscillating gas flow rate additive with the first oscillating volumetric flow rate, the compliance having a volume effective to provide a selected total oscillating gas volumetric flow rate through the first heat exchanger. This configuration enables the first heat exchanger to be configured and located to better enhance the performance of the heat exchanger rather than being confined to the location and configuration of the regenerator.

  8. Q-branch Raman scattering and modern kinetic thoery

    SciTech Connect (OSTI)

    Monchick, L. [The Johns Hopkins Univ., Laurel, MD (United States)

    1993-12-01T23:59:59.000Z

    The program is an extension of previous APL work whose general aim was to calculate line shapes of nearly resonant isolated line transitions with solutions of a popular quantum kinetic equation-the Waldmann-Snider equation-using well known advanced solution techniques developed for the classical Boltzmann equation. The advanced techniques explored have been a BGK type approximation, which is termed the Generalized Hess Method (GHM), and conversion of the collision operator to a block diagonal matrix of symmetric collision kernels which then can be approximated by discrete ordinate methods. The latter method, which is termed the Collision Kernel method (CC), is capable of the highest accuracy and has been used quite successfully for Q-branch Raman scattering. The GHM method, not quite as accurate, is applicable over a wider range of pressures and has proven quite useful.

  9. Pen Branch stream corridor and Delta Wetlands change assessment

    SciTech Connect (OSTI)

    Blohm, J.D.

    1995-06-01T23:59:59.000Z

    Airborne multispectral scanner data from 1987 to 1991 covering the Pen Branch corridor and delta at SRS were utilized to provide a detailed change detection analysis. The multispectral data were geo-referenced to a Universal Transverse Mercator projection using finite element registration. Each year was then classified into eleven different landcover categories, and the yearly changes in each landcover category were analyzed. The decrease in operations of K Reactor in 1988 has resulted in drying of the corridor and delta. This has led to the decline of nonpersistent vegetation and the increase of persistent vegetation. Cattails, willow, and bottomland hardwoods, in particular, have grown to dominate the corridor and most of the delta.

  10. Addresses and business hours of Rabobank Eindhoven-Veldhoven Branch Witte Dame (Emmasingel 4), Eindhoven

    E-Print Network [OSTI]

    Franssen, Michael

    Addresses and business hours of Rabobank Eindhoven-Veldhoven Branch Witte Dame (Emmasingel 4), Eindhoven Monday: 12.00 ­ 17.00 hrs Tuesday till Thursday: 09.30 ­ 17.00 hrs Friday: 09.30 ­ 18.00 hrs Saturday 10.00 ­ 13.00 hrs Branch Winkelcentrum Woensel 400, Eindhoven Monday: 12.00 ­ 17.00 hrs Tuesday

  11. Predicting Extinction or Explosion in a Galton-Watson Branching Process

    E-Print Network [OSTI]

    Washington at Seattle, University of

    sizes of an endangered species whose survival is deemed essential. Case 2. Extinction is undesirablePredicting Extinction or Explosion in a Galton-Watson Branching Process Peter Guttorp and Michael D generations of a discrete- parameter Galton-Watson branching process, one wishes to predict whether extinction

  12. Div ision of T echnology, Industry & Economics Energy Branch Deploying renewable energy

    E-Print Network [OSTI]

    Canet, Léonie

    Div ision of T echnology, Industry & Economics Energy Branch Deploying renewable energy, Industry & Economics Energy Branch 1. Policy landscape 2. Helping transition to Renewable Energy 3 governments are promoting renewable energy. Renewable energy ­ Policy Landscape #12;Div ision of T echnology

  13. Recovery of Free Energy Branches in Single Molecule Experiments Ivan Junier,1

    E-Print Network [OSTI]

    Ritort, Felix

    Recovery of Free Energy Branches in Single Molecule Experiments Ivan Junier,1 Alessandro Mossa,2 19 February 2009) We present a method for determining the free energy of coexisting states from use optical tweezers to determine the free energy branches of the native and unfolded states of a two

  14. A Branch and Bound Algorithm for the Protein Folding Problem in the HP Lattice Model

    E-Print Network [OSTI]

    Istrail, Sorin

    Article A Branch and Bound Algorithm for the Protein Folding Problem in the HP Lattice Model Mao tool for the protein folding problem. Key words: protein folding, HP model, branch and bound, lattice Introduction The protein folding problem, or the protein struc- ture prediction problem, is one of the most

  15. Eciency of the Incomplete Enumeration algorithm for Monte-Carlo simulation of linear and branched polymers.

    E-Print Network [OSTI]

    Dhar, Deepak

    polymers. Sumedha #3; and Deepak Dhar y Department Of Theoretical Physics Tata Institute Of Fundamental algorithm for linear and branched polymers. There is a qualitative di#11;erence in the eÆciency in these two for linear polymers, but as exp(cn #11; ) for branched (undirected and directed) polymers, where 0

  16. Applying Decay Strategies to Branch Predictors for Leakage Energy Savings Zhigang Hu

    E-Print Network [OSTI]

    Martonosi, Margaret

    Applying Decay Strategies to Branch Predictors for Leakage Energy Savings Zhigang HuÝ Philo Juang@cs.virginia.edu doug@cs.princeton.edu Abstract With technology advancing toward deep submicron, leak- age energy--already shown to reduce leakage energy for caches--to branch-prediction structures. Due to the structural

  17. M. Shepherd et al.Branch architecture QTL for pine hybrids Original article

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    M. Shepherd et al.Branch architecture QTL for pine hybrids Original article Branch architecture QTL Crossa , Mark J. Dietersb and Robert Henrya a Cooperative Research Centre for Sustainable Production, Australia b Cooperative Research Centre for Sustainable Production Forestry, Queensland Forestry Research

  18. A NEW VALUE BASED BRANCH PREDICTOR FOR SMT PROCESSORS LIQIANG HE and ZHIYONG LIU

    E-Print Network [OSTI]

    Vintan, Lucian N.

    A NEW VALUE BASED BRANCH PREDICTOR FOR SMT PROCESSORS LIQIANG HE and ZHIYONG LIU Institute@ict.ac.cn and zliu@nsfc.gov.cn ABSTRACT Simultaneous Multithreaded (SMT) processors improve the instruction important role in improving the performance of an SMT processor. Although the existing branch predictors

  19. Process Switches and Branch Prediction Accuracy David Chen, Bennett Lau, Jeffrey Shafer

    E-Print Network [OSTI]

    Rixner, Scott

    Department of Electrical and Computer Engineering Rice University Abstract There were several hypotheses to "repair" the destructive aliasing in the branch history table after a process switch, both combine by [9], is central to this research project. Analogous to memory caches, aliasing in branch prediction

  20. Fluid transport in branched structures with temporary closures: A model for quasistatic lung inflation

    E-Print Network [OSTI]

    Alencar, Adriano Mesquita

    Fluid transport in branched structures with temporary closures: A model for quasistatic lung a model system relevant to the inflation of a mammalian lung, an asymmetric bifurcating structure description of the underlying branching structure of the lung, by analyzing experimental pressure-volume data

  1. Sox9 plays multiple roles in the lung epithelium during branching morphogenesis

    E-Print Network [OSTI]

    Sander, Maike

    Sox9 plays multiple roles in the lung epithelium during branching morphogenesis Briana E. Rockicha, Durham, NC, and approved October 2, 2013 (received for review June 21, 2013) Lung branching morphogenesis lung. Intricate regulation of signaling pathways, tran- scription factors, and epithelial

  2. Defining the Termination of the Asymptotic Giant Branch

    E-Print Network [OSTI]

    Noam Soker

    2007-12-22T23:59:59.000Z

    I suggest a theoretical quantitative definition for the termination of the asymptotic giant branch (AGB) phase and the beginning of the post-AGB phase. I suggest that the transition will be taken to occur when the ratio of the dynamical time scale to the the envelope thermal time scale, Q, reaches its maximum value. Time average values are used for the different quantities, as the criterion does not refer to the short time-scale variations occurring on the AGB and post-AGB, e.g., thermal pulses (helium shell flashes) and magnetic activity. Along the entire AGB the value of Q increases, even when the star starts to contract. Only when a rapid contraction starts does the value of Q start to decrease. This criterion captures the essence of the transition from the AGB to the post AGB phase, because Q is connected to the stellar effective temperature, reaching its maximum value at T~4000-6000 K, it is related to the mass loss properties, and it reaches its maximum value when rapid contraction starts and envelope mass is very low.

  3. Numerical simulations of depressurization-induced gas production from gas hydrate reservoirs at the Walker Ridge 312 site, northern Gulf of Mexico

    SciTech Connect (OSTI)

    Myshakin, Evgeniy M.; Gaddipati, Manohar; Rose, Kelly; Anderson, Brian J.

    2012-06-01T23:59:59.000Z

    In 2009, the Gulf of Mexico (GOM) Gas Hydrates Joint-Industry-Project (JIP) Leg II drilling program confirmed that gas hydrate occurs at high saturations within reservoir-quality sands in the GOM. A comprehensive logging-while-drilling dataset was collected from seven wells at three sites, including two wells at the Walker Ridge 313 site. By constraining the saturations and thicknesses of hydrate-bearing sands using logging-while-drilling data, two-dimensional (2D), cylindrical, r-z and three-dimensional (3D) reservoir models were simulated. The gas hydrate occurrences inferred from seismic analysis are used to delineate the areal extent of the 3D reservoir models. Numerical simulations of gas production from the Walker Ridge reservoirs were conducted using the depressurization method at a constant bottomhole pressure. Results of these simulations indicate that these hydrate deposits are readily produced, owing to high intrinsic reservoir-quality and their proximity to the base of hydrate stability. The elevated in situ reservoir temperatures contribute to high (5–40 MMscf/day) predicted production rates. The production rates obtained from the 2D and 3D models are in close agreement. To evaluate the effect of spatial dimensions, the 2D reservoir domains were simulated at two outer radii. The results showed increased potential for formation of secondary hydrate and appearance of lag time for production rates as reservoir size increases. Similar phenomena were observed in the 3D reservoir models. The results also suggest that interbedded gas hydrate accumulations might be preferable targets for gas production in comparison with massive deposits. Hydrate in such accumulations can be readily dissociated due to heat supply from surrounding hydrate-free zones. Special cases were considered to evaluate the effect of overburden and underburden permeability on production. The obtained data show that production can be significantly degraded in comparison with a case using impermeable boundaries. The main reason for the reduced productivity is water influx from the surrounding strata; a secondary cause is gas escape into the overburden. The results dictate that in order to reliably estimate production potential, permeability of the surroundings has to be included in a model.

  4. Distribution and origin of ethyl-branched alkanes in a Cenomanian transgressive shale of the Western Interior

    E-Print Network [OSTI]

    Kenig, Fabien

    Note Distribution and origin of ethyl-branched alkanes in a Cenomanian transgressive shale hydrocarbon fraction of the basal Graneros Shale (Cenomanian, Western Interior Seaway, USA). On the basis rights reserved. Keywords: Monoethylalkanes; Branched alkanes; Black shales; Cenomanian; Graneros Shale

  5. Ecological effects of contaminants in McCoy Branch, 1989-1990

    SciTech Connect (OSTI)

    Ryon, M.G. [ed.

    1992-01-01T23:59:59.000Z

    The 1984 Hazardous and Solid Waste Amendments to the Resource Conservation and Recovery Act (RCRA) required assessment of all current and former solid waste management units. Such a RCRA Facility Investigation (RFI) was required of the Y-12 Plant for their Filled Coal Ash Pond on McCoy Branch. Because the disposal of coal ash in the ash pond, McCoy Branch, and Rogers Quarry was not consistent with the Tennessee Water Quality Act, several remediation steps were implemented or planned for McCoy Branch to address disposal problems. The McCoy Branch RFI plan included provisions for biological monitoring of the McCoy Branch watershed. The objectives of the biological monitoring were to: (1) document changes in biological quality of McCoy Branch after completion of a pipeline and after termination of all discharges to Rogers Quarry, (2) provide guidance on the need for additional remediation, and (3) evaluate the effectiveness of implemented remedial actions. The data from the biological monitoring program will also determine if the classified uses, as identified by the State of Tennessee, of McCoy Branch are being protected and maintained. This report discusses results from toxicity monitoring of snails fish community assessment, and a Benthic macroinvertebrate community assessment.

  6. Proposal for the award of a contract for the provision of maintenance services for CERN's telephone branch exchange

    E-Print Network [OSTI]

    2014-01-01T23:59:59.000Z

    Proposal for the award of a contract for the provision of maintenance services for CERN's telephone branch exchange

  7. Chemoembolization Via Branches from the Splenic Artery in Patients with Hepatocellular Carcinoma

    SciTech Connect (OSTI)

    Choi, Jin Woo; Kim, Hyo-Cheol, E-mail: angiointervention@gmail.com; Chung, Jin Wook; Kim, Ji Dae; Kim, Gyoung Min; Lee, In Joon; Jae, Hwan Jun; Park, Jae Hyung [Seoul National University College of Medicine, Department of Radiology (Korea, Republic of)

    2012-02-15T23:59:59.000Z

    Purpose: This study was designed to evaluate the radiologic findings and imaging response of chemoembolization via branches of the splenic artery in patients with hepatocellular carcinoma (HCC). Methods: From January 2001 to July 2010, we observed tumor staining supplied by branches of the splenic artery in 34 (0.6%) of 5,413 patients with HCC. Computed tomography (CT) scans and digital subtraction angiograms of these patients were retrospectively reviewed in consensus by two investigators. Results: A total of 39 tumor feeding-vessels in 34 patients were identified: omental branches from the left gastroepiploic artery (n = 5), branches from the short gastric artery (n = 9), and omental branches directly from the splenic artery (n = 25). Branches of the splenic artery that supplied tumors were revealed on the celiac angiogram in 29 (85%) of 34 patients and were detected on pre-procedure CT images in 27 (79%) of 34 patients. Selective chemoembolization was achieved in 38 of 39 tumor-feeding vessels. Complete or partial response of the tumor fed by branches of the splenic artery, as depicted on follow-up CT scans, was achieved in 21 (62%) patients. No patient developed severe complications directly related to chemoembolization via branches of the splenic artery. Conclusions: Omental branches directly from the splenic artery are common tumor-feeding vessels of the splenic artery in cases of advanced HCC with multiple previous chemoembolizations. Tumor-feeding vessels of the splenic artery are usually visualized on the celiac angiogram or CT scan, and chemoembolization through them can be safely performed in most patients.

  8. Molecular Design of Branched and Binary Molecules at Ordered Interfaces

    SciTech Connect (OSTI)

    Kirsten Larson Genson

    2005-12-27T23:59:59.000Z

    This study examined five different branched molecular architectures to discern the effect of design on the ability of molecules to form ordered structures at interfaces. Photochromic monodendrons formed kinked packing structures at the air-water interface due to the cross-sectional area mismatch created by varying number of alkyl tails and the hydrophilic polar head group. The lower generations formed orthorhombic unit cell with long range ordering despite the alkyl tails tilted to a large degree. Favorable interactions between liquid crystalline terminal groups and the underlying substrate were observed to compel a flexible carbosilane dendrimer core to form a compressed elliptical conformation which packed stagger within lamellae domains with limited short range ordering. A twelve arm binary star polymer was observed to form two dimensional micelles at the air-water interface attributed to the higher polystyrene block composition. Linear rod-coil molecules formed a multitude of packing structures at the air-water interface due to the varying composition. Tree-like rod-coil molecules demonstrated the ability to form one-dimensional structures at the air-water interface and at the air-solvent interface caused by the preferential ordering of the rigid rod cores. The role of molecular architecture and composition was examined and the influence chemically competing fragments was shown to exert on the packing structure. The amphiphilic balance of the different molecular series exhibited control on the ordering behavior at the air-water interface and within bulk structures. The shell nature and tail type was determined to dictate the preferential ordering structure and molecular reorganization at interfaces with the core nature effect secondary.

  9. Disappearance of criticality in a branched-chain thermal explosion with heat loss

    SciTech Connect (OSTI)

    Okoya, S.S. [Department of Mathematics, Obafemi Awolowo University, Ile-Ife, 220005 (Nigeria)

    2006-01-01T23:59:59.000Z

    Branched-chain thermal explosions involving simplified initiation, branching, and termination of chains, as well as heat exchange with the surroundings, are considered, but it is assumed that consumption of fuel is negligible for combustion in a mixture of H{sub 2}+O{sub 2} that covers nth Arrhenius kinetics for the chain-branching step. In particular, the effect of heat loss on the problem is considered, Mostly analytical investigations of the simplified model are presented using standard Semenov's techniques. The analytical method provides expressions for criticality and the transition points. Also, the different qualitative effects of varying the dimensionless parameters are investigated.

  10. A Break-Even Formulation for Evaluating Branch Predictor Energy Michele Co, Dee A.B. Weikle, and Kevin Skadron

    E-Print Network [OSTI]

    Co, Michele

    demonstrated that a better branch pre- dictor can increase the energy-efficiency of the system, even if the new a simple, effective metric for eval- uating the tradeoff between processor energy-efficiency and branch and an energy-efficiency target, we are able to evaluate the energy-efficiency of several existing branch

  11. A Framework to Model Branch Prediction for Worst Case Execution Time Analysis

    E-Print Network [OSTI]

    Roychoudhury, Abhik

    execution history. This allows the program execution to proceed by speculating the control flow. Branch with an external environment in a timely fashion. Many embedded systems are safety critical, e.g., automobiles

  12. A branch and bound algorithm for the global optimization of Hessian ...

    E-Print Network [OSTI]

    2011-11-16T23:59:59.000Z

    Nov 1, 2011 ... Heuristic Algorithm 2.1 (LH) 5s. 485s. 2×10?2† 1×10?1†. Table 3: Run times of the different convex constrained branch and bound algorithms ...

  13. Measurement of the inclusive semileptonic branching fraction B(B?s?X-l+?l) at Belle

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Oswald, C.; Urquijo, P.; Dingfelder, J.; Adachi, I.; Aihara, H.; Arinstein, K.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Belous, K.; et al

    2013-04-01T23:59:59.000Z

    We report a measurement of the inclusive semileptonic B0s branching fraction in a 121 fb?¹ data sample collected near the ?(5S) resonance with the Belle detector at the KEKB asymmetric energy e?e? collider. Events containing B?(*)sB¯¯¯?(*)s pairs are selected by reconstructing a tag side D?s and identifying a signal side lepton l? (l=e, ?) that is required to have the same-sign charge to ensure that both originate from different B?s mesons. The B?s?X?l??l branching fraction is extracted from the ratio of the measured yields of D?s mesons and D?sl? pairs and the known production and branching fractions. The inclusive semileptonicmore »branching fraction is measured to be [10.6±0.5(stat)±0.7(syst)]%.« less

  14. Branched peptide amphiphiles, related epitope compounds and self assembled structures thereof

    DOE Patents [OSTI]

    Stupp, Samuel I. (Chicago, IL); Guler, Mustafa O. (Evanston, IL)

    2008-11-18T23:59:59.000Z

    Branched peptide amphiphilic compounds incorporating one or residues providing a pendant amino group for coupling one or more epitope sequences thereto, such compounds and related compositions for enhanced epitope presentation.

  15. Epicormic branching on Central Appalachian hardwoods 10 years after deferment cutting. Forest Service research paper

    SciTech Connect (OSTI)

    Miller, G.W.

    1996-03-01T23:59:59.000Z

    Epicormic branching as monitored over a 10-year period following deferment cutting in four central Appalachian hardwood stands in West Virginia. Data from 545 codominant residual trees indicated that the average number of epicormic branches on the butt and second 16-food log sections increased significantly for the first 2 years after treatment. For upper log sections of basswood, northern red oak, and black cherry, significant increases continued from the second to the tenth year. The net effect on quality was that 11 percent of residual trees exhibited a reduction in butt-log grade due to epicormic branching. Of the few grade reductions observed, white oak, northern red oak, and black cherry were the most susceptible. Less than 1 percent of yellow-poplar trees had lower grades due to epicormic branching.

  16. Branch-and-Cut for Linear Programs with Overlapping SOS1 ...

    E-Print Network [OSTI]

    Tobias Fischer and Marc E. Pfetsch

    2015-04-01T23:59:59.000Z

    Apr 1, 2015 ... also investigate ways to strengthen the resulting subproblems by adding .... the left and the right branching node are not necessarily disjoint, ...... A multi-hop wireless network consists of a set N of transmission nodes that may.

  17. Determination of the deuterium-tritium branching ratio based on inertial confinement fusion implosions

    E-Print Network [OSTI]

    Rosenberg, Michael Jonathan

    The deuterium-tritium (D-T) ?-to-neutron branching ratio [[superscript 3]H(d,?)[superscript 5]He/[superscript 3]H(d,n)[superscript 4]He] was determined under inertial confinement fusion (ICF) conditions, where the ...

  18. Glucagon-Induced Vasospasm of Hepatic Artery Branches During Visceral Angiography

    SciTech Connect (OSTI)

    Dziedzic, T. Scott; Smith, Tony P., E-mail: smith146@mc.duke.ed [Duke University Medical Center, Department of Radiology (United States)

    2008-07-15T23:59:59.000Z

    Glucagon is often used in radiology to decrease bowel motility for enhanced imaging, including visceral digital subtraction angiography. We present a case in which branch hepatic artery vasospasm followed the intravenous administration of glucagon during visceral angiography.

  19. Measurement of the inclusive semileptonic branching fraction B(Bs0?X-?+??) at Belle

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Oswald, C.; Urquijo, P.; Dingfelder, J.; Adachi, I.; Aihara, H.; Arinstein, K.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bondar, A.; Bonvicini, G.; Bozek, A.; Bra?ko, M.; Browder, T. E.; Chang, P.; Chekelian, V.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, S.-K.; Choi, Y.; Cinabro, D.; Dalseno, J.; Doležal, Z.; Drásal, Z.; Drutskoy, A.; Dutta, D.; Eidelman, S.; Esen, S.; Farhat, H.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Gillard, R.; Goh, Y. M.; Golob, B.; Haba, J.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Kah, D. H.; Kang, J. H.; Kato, E.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Klucar, J.; Ko, B. R.; Korpar, S.; Kouzes, R. T.; Križan, P.; Krokovny, P.; Kronenbitter, B.; Kuhr, T.; Kumita, T.; Kwon, Y.-J.; Lee, S.-H.; Li, J.; Li, Y.; Libby, J.; Liu, C.; Liu, Y.; Liu, Z. Q.; Liventsev, D.; Louvot, R.; Lutz, O.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Muramatsu, N.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nedelkovska, E.; Nisar, N. K.; Nishida, S.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ostrowicz, W.; Pakhlov, P.; Pakhlova, G.; Park, H.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petri?, M.; Piilonen, L. E.; Prim, M.; Prothmann, K.; Ritter, M.; Röhrken, M.; Rozanska, M.; Ryu, S.; Sahoo, H.; Saito, T.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Sato, Y.; Schneider, O.; Schnell, G.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T.-A.; Shiu, J.-G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y.-S.; Sokolov, A.; Solovieva, E.; Stari?, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Van Hulse, C.; Vanhoefer, P.; Varner, G.; Varvell, K. E.; Wang, C. H.; Wang, M.-Z.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamamoto, H.; Yamashita, Y.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.

    2013-04-01T23:59:59.000Z

    We report a measurement of the inclusive semileptonic B0s branching fraction in a 121 fb?¹ data sample collected near the ?(5S) resonance with the Belle detector at the KEKB asymmetric energy e?e? collider. Events containing B?(*)sB¯¯¯?(*)s pairs are selected by reconstructing a tag side D?s and identifying a signal side lepton ?? (?=e, ?) that is required to have the same-sign charge to ensure that both originate from different B?s mesons. The B?s?X????? branching fraction is extracted from the ratio of the measured yields of D?s mesons and D?s?? pairs and the known production and branching fractions. The inclusive semileptonic branching fraction is measured to be [10.6±0.5(stat)±0.7(syst)]%.

  20. Blood Flow At Arterial Branches: Complexities To Resolve For The Angioplasty Suite

    E-Print Network [OSTI]

    Laidlaw, David

    in the 1970s [1, 2] led to a large increase of interest in the possible role of fluid dynamics Tubes Branched tubes were fabricated by machining - drilling, reaming, and chloroform- polishing - of 3

  1. Tree-ring growth and wood chemistry response to manipulated precipitation variation for two temperate Quercus species

    SciTech Connect (OSTI)

    Wagner, Rebekah J. [Pennsylvania State University, University Park, PA; Kaye, Margot W. [Pennsylvania State University, University Park, PA; Abrams, Marc D. [Pennsylvania State University, University Park, PA; Hanson, Paul J [ORNL; Martin, Madhavi Z [ORNL

    2012-01-01T23:59:59.000Z

    We examined the relationship among ambient and manipulated precipitation, wood chemistry, and their relationship with radial growth for two oak species in eastern Tennessee. The study took place on the Walker Branch Throughfall Displacement Experiment (TDE) site, located at the Oak Ridge National Laboratory in Oak Ridge, TN. Two dominant species, white oak (Quercus alba) and chestnut oak (Quercus prinus), were selected for study from a 13-year experiment of whole-stand precipitation manipulation (wet, ambient and dry). The relationships between tree-ring width and climate were compared for both species to determine the impact of precipitation manipulations on ring width index. This study used experimental spectroscopy techniques to measure the sensitivity of tree-ring responses to directional changes in precipitation over 13 years, and the results suggest that oaks at this study site are resilient to imposed changes, but sensitive to inter-annual variations in climate. Laser-induced breakdown spectroscopy (LIBS) allowed us to measure nutrient intensities (similar to element concentrations) at 0.5-1.0 mm spacing along the radial growth axis of trees growing in the wet, ambient, and dry treatment sites. A difference in stemwood nutrient levels was observed between the two oak species and among the three treatments. Significant variation in element intensity was observed across treatments for some elements (Ca, K, Mg, Na, N and P) suggesting the potential for long-term impacts on growth under a changing climate regimes for southeastern oaks.

  2. Search for the decay Bs0 ? ?? and a measurement of the branching fraction for Bs0 ? ??

    SciTech Connect (OSTI)

    Dutta, Deepanwita; Bhuyan, Bipul; Abdesselam, A.; Adachi, I.; Aihara, H.; Al Said, S.; Arinstein, K.; Asner, David M.; Aulchenko, V.; Aushev, T.; Ayad, R.; Aziz, T.; Bahinipati, S.; Bakich, A. M.; Bansal, Vikas; Bhardwaj, V.; Bobrov, A.; Bonvicini, Giovanni; Bracko, Marko; Browder, Thomas E.; Cervenkov, D.; Chen, A.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, Y.; Cinabro, David A.; Dalseno, J.; Dolezal, Z.; Drasal, Z.; Drutskoy, A.; Dutta, K.; Eidelman, S.; Farhat, H.; Fast, James E.; Frost, O.; Gaur, Vipin; Ganguly, Sudeshna; Garmash, Alexey; Getzkow, D.; Goh, Y. M.; Golob, B.; Hayashii, H.; He, X. H.; Hou, W. S.; Iijima, T.; Ishikawa, A.; Iwasaki, Y.; Jaegle, Igal; Joffe, D.; Kang, K. H.; Kato, E.; Kiesling, C.; Kim, D. Y.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, S. H.; Kim, Y. J.; Kinoshita, Kay; Ko, Byeong Rok; Kodys, P.; Korpar, S.; Krizan, P.; Krokovny, Pavel; Kuhr, Thomas; Kuzmin, A.; Kwon, Y. J.; Lange, J. S.; Lee, I. S.; Lewis, P.; Li, Y.; Li Gioi, L.; Libby, J.; Liventsev, Dmitri; Matvienko, D.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Mori, T.; Mussa, R.; Nakano, E.; Nakao, M.; Nanut, T.; Nayak, Minakshi; Nisar, N. K.; Nishida, S.; Ogawa, S.; Okuno, S.; Pakhlov, P.; Pakhlova, Galina; Pedlar, Todd K.; Pestotnik, Rok; Petric, Marko; Piilonen, Leo E.; Ribezl, Eva; Ritter, M.; Rostomyan, A.; Sakai, Y.; Sandilya, Saurabh; Santelj, Luka; Sanuki, T.; Sato, Y.; Savinov, Vladimir; Schneider, O.; Schnell, G.; Schwanda, C.; Schwartz, A. J.; Semmler, D.; Shebalin, V.; Shibata, T. A.; Shiu, Jing-Ge; Shwartz, B.; Sibidanov, A.; Simon, F.; Sohn, Y. S.; Sokolov, A.; Solovieva, E.; Staric, M.; Sumihama, M.; Sumiyoshi, T.; Teramoto, Y.; Trabelsi, K.; Uchida, M.; Unno, Yuji; Uno, S.; Usov, Y.; Van Hulse, C.; Vanhoefer, P.; Varner, G.; Vinokurova, A.; Vossen, Anslem G.; Wagner, M. N.; Wang, C. H.; Wang, P.; Watanabe, Y.; Wehle, S.; Williams, K. M.; Won, E.; Yamamoto, H.; Yamaoka, J.; Yashchenko, S.; Yusa, Y.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.

    2015-01-01T23:59:59.000Z

    We search for the decay B0s??? and measure the branching fraction for B0s??? using 121.4~fb-1 of data collected at the ?(5S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The B0s??? branching fraction is measured to be (3.6±0.5(stat.)±0.3(syst.)±0.6(fs))×10-5, where fs is the fraction of Bs(*)B¯s(*) in bb¯ events. Our result is in good agreement with the theoretical predictions as well as with a recent measurement from LHCb. We observe no statistically significant signal for the decay B0s??? and set a 90% confidence-level upper limit on its branching fraction at 3.1×10-6. This constitutes a significant improvement over the previous result.

  3. Measurement of Lambda(C) Branching Fractions of Cabibbo-Suppressed Decay Modes in the BABAR Experiment

    SciTech Connect (OSTI)

    Saleem, Muhammad; /SUNY, Albany

    2006-01-05T23:59:59.000Z

    This dissertation reports on a study of the relative branching fraction measurement of the charmed baryon {Lambda}{sub c} decaying to the Cabibbo-suppressed modes.

  4. A Conceptual Restoration Plan and Tidal Hydrology Assessment for Reconnecting Spring Branch Creek to Suisun Marsh, Solano County, California

    E-Print Network [OSTI]

    Olson, Jessica J.

    2012-01-01T23:59:59.000Z

    EDAW 2007. Potrero Hills Landfill FEIR Volume 1. Solanothe headwaters at Potrero Hills Landfill is the headwatersBranch Creek, Potrero Hills Landfill and a private rancher

  5. Data acquisition with a VAX 11/780 and MBD branch driver

    SciTech Connect (OSTI)

    King, S.E. (Duke Univ., Durham, NC); Lau, Y.C.; Gould, C.R.

    1981-10-01T23:59:59.000Z

    We have designed and implemented a general purpose data acquisition system, XSYS, for the Triangle Universities Nuclear Laboratory VAX-11/780. The interface is a CAMAC Branch Highway connected to a Microprogrammed Branch Driver (MBD-11). A single general reentrant MBD program handles CAMAC operations and data transfers to and from the VAX using a DMA transfer. Each of the eight MBD channels is controlled by an independent subprocess in the VAX which communicates with the MBD via the UNIBUS. Data are double buffered and are sorted by VAX user written EVAL codes after the MBD wakes a hibernating subprocess image. Scalar operations and control of external devices are also supported.

  6. Delayed-neutron branching ratios of precursors in the fission product region

    SciTech Connect (OSTI)

    Rudstam, G.; Aleklett, K.; Sihver, L. (Studsvik Neutron Research Lab., Nykoeping (Sweden))

    1993-01-01T23:59:59.000Z

    Delayed-neutron branching ratios in the fission product region have been tabulated, and average values have been determined. In order to provide data complementary to published values an experiment covering the mass range 79-150 has been carried out at the OSIRIS isotope-separator on-line facility at Studsvik. This experiment has resulted in branching ratios for some precursors ([sup 84]Ge, [sup 133]Sn, and [sup 150]La) for which such data have not been reported before. In several other cases the new results are accurate than older determinations. 19 refs., 2 figs., 1 tab.

  7. Assessment of Pen Branch delta and corridor vegetation changes using multispectral scanner data 1992--1994

    SciTech Connect (OSTI)

    NONE

    1996-01-01T23:59:59.000Z

    Airborne multispectral scanner data were used to monitor natural succession of wetland vegetation species over a three-year period from 1992 through 1994 for Pen Branch on the Savannah River Site in South Carolina. Image processing techniques were used to identify and measure wetland vegetation communities in the lower portion of the Pen Branch corridor and delta. The study provided a reliable means for monitoring medium- and large-scale changes in a diverse environment. Findings from the study will be used to support decisions regarding remediation efforts following the cessation of cooling water discharge from K reactor at the Department of Energy`s Savannah River Site in South Carolina.

  8. Measurement of branching fractions and rate asymmetries in the rare decays B?K(*)l?l?

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Lees, J. P.; Poireau, V.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.; Koch, H.; Schroeder, T.; Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; Khan, A.; Blinov, V. E.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu. I.; Solodov, E. P.; Todyshev, K. Yu.; Yushkov, A. N.; Bondioli, M.; Kirkby, D.; Lankford, A. J.; Mandelkern, M.; Atmacan, H.; Gary, J. W.; Liu, F.; Long, O.; Vitug, G. M.; Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Richman, J. D.; West, C. A.; Eisner, A. M.; Kroseberg, J.; Lockman, W. S.; Martinez, A. J.; Schumm, B. A.; Seiden, A.; Chao, D. S.; Cheng, C. H.; Echenard, B.; Flood, K. T.; Hitlin, D. G.; Ongmongkolkul, P.; Porter, F. C.; Rakitin, A. Y.; Andreassen, R.; Huard, Z.; Meadows, B. T.; Sokoloff, M. D.; Sun, L.; Bloom, P. C.; Ford, W. T.; Gaz, A.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.; Ayad, R.; Toki, W. H.; Spaan, B.; Schubert, K. R.; Schwierz, R.; Bernard, D.; Verderi, M.; Clark, P. J.; Playfer, S.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cibinetto, G.; Fioravanti, E.; Garzia, I.; Luppi, E.; Munerato, M.; Negrini, M.; Piemontese, L.; Santoro, V.; Baldini-Ferroli, R.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Patteri, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.; Contri, R.; Guido, E.; Lo Vetere, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Bhuyan, B.; Prasad, V.; Lee, C. L.; Morii, M.; Edwards, A. J.; Adametz, A.; Uwer, U.; Lacker, H. M.; Lueck, T.; Dauncey, P. D.; Behera, P. K.; Mallik, U.; Chen, C.; Cochran, J.; Meyer, W. T.; Prell, S.; Rubin, A. E.; Gritsan, A. V.; Guo, Z. J.; Arnaud, N.; Davier, M.; Derkach, D.; Grosdidier, G.; Le Diberder, F.; Lutz, A. M.; Malaescu, B.; Roudeau, P.; Schune, M. H.; Stocchi, A.; Wormser, G.; Lange, D. J.; Wright, D. M.; Chavez, C. A.; Coleman, J. P.; Fry, J. R.; Gabathuler, E.; Hutchcroft, D. E.; Payne, D. J.; Touramanis, C.; Bevan, A. J.; Di Lodovico, F.; Sacco, R.; Sigamani, M.; Cowan, G.; Brown, D. N.; Davis, C. L.; Denig, A. G.; Fritsch, M.; Gradl, W.; Griessinger, K.; Hafner, A.; Prencipe, E.; Barlow, R. J.; Jackson, G.; Lafferty, G. D.; Behn, E.; Cenci, R.; Hamilton, B.; Jawahery, A.; Roberts, D. A.; Dallapiccola, C.; Cowan, R.; Dujmic, D.; Sciolla, G.; Cheaib, R.; Lindemann, D.; Patel, P. M.; Robertson, S. H.; Biassoni, P.; Neri, N.; Palombo, F.; Stracka, S.; Cremaldi, L.; Godang, R.; Kroeger, R.; Sonnek, P.; Summers, D. J.; Nguyen, X.; Simard, M.; Taras, P.; De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.; Martinelli, M.; Raven, G.; Jessop, C. P.; LoSecco, J. M.; Wang, W. F.; Honscheid, K.; Kass, R.; Brau, J.; Frey, R.; Sinev, N. B.; Strom, D.; Torrence, E.; Feltresi, E.; Gagliardi, N.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simi, G.; Simonetto, F.; Stroili, R.; Akar, S.; Ben-Haim, E.; Bomben, M.; Bonneaud, G. R.; Briand, H.; Calderini, G.; Chauveau, J.; Hamon, O.; Leruste, Ph.; Marchiori, G.; Ocariz, J.; Sitt, S.; Biasini, M.; Manoni, E.; Pacetti, S.; Rossi, A.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Oberhof, B.; Paoloni, E.; Perez, A.; Rizzo, G.; Walsh, J. J.; Lopes Pegna, D.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.; Anulli, F.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Li Gioi, L.; Mazzoni, M. A.; Piredda, G.; Bünger, C.; Grünberg, O.; Hartmann, T.; Leddig, T.; Schröder, H.; Voss, C.; Waldi, R.; Adye, T.; Olaiya, E. O.; Wilson, F. F.; Emery, S.; Hamel de Monchenault, G.; Vasseur, G.; Yèche, Ch.; Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Ebert, M.; Field, R. C.; Franco Sevilla, M.; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Lewis, P.; Lindquist, B.; Luitz, S.; Luth, V.; Lynch, H. L.; MacFarlane, D. B.; Muller, D. R.; Neal, H.; Nelson, S.; Perl, M.; Pulliam, T.; Ratcliff, B. N.; Roodman, A.; Salnikov, A. A.; Schindler, R. H.; Snyder, A.; Su, D.; Sullivan, M. K.; Va’vra, J.; Wagner, A. P.; Wisniewski, W. J.; Wittgen, M.; Wright, D. H.; Wulsin, H. W.; Young, C. C.; Ziegler, V.; Park, W.; Purohit, M. V.; White, R. M.; Wilson, J. R.; Randle-Conde, A.; Sekula, S. J.; Bellis, M.; Burchat, P. R.; Miyashita, T. S.; Alam, M. S.; Ernst, J. A.; Gorodeisky, R.; Guttman, N.; Peimer, D. R.; Soffer, A.; Lund, P.; Spanier, S. M.; Ritchie, J. L.; Ruland, A. M.; Schwitters, R. F.; Wray, B. C.; Izen, J. M.; Lou, X. C.; Bianchi, F.; Gamba, D.; Lanceri, L.; Vitale, L.; Martinez-Vidal, F.; Oyanguren, A.; Ahmed, H.; Albert, J.

    2012-08-01T23:59:59.000Z

    In a sample of 471×10? BB¯¯¯ events collected with the BABAR detector at the PEP-II e?e? collider we study the rare decays B?K(*)l?l?, where l?l? is either e?e? or ????. We report results on partial branching fractions and isospin asymmetries in seven bins of dilepton mass-squared. We further present CP and lepton-flavor asymmetries for dilepton masses below and above the J/? resonance. We find no evidence for CP or lepton-flavor violation. The partial branching fractions and isospin asymmetries are consistent with the Standard Model predictions and with results from other experiments.

  9. November 18, 2004 Mark Walker

    E-Print Network [OSTI]

    to provide a more objective view of the benefits of additional coal-fired generation to Pacific Northwest energy consumers. Coal-Fired Generation GNPD supports the emphasis in the Draft Plan on seeking a "least). (See following chart.) #12;New Coal-Fired Generation 0 500 1000 1500 2000 2500 2010 2012 2014 2016 2018

  10. October 18, 2007 Mark Walker

    E-Print Network [OSTI]

    retirement of older coal-fired plants. Because the analysis of gas-fired replacement of generation by Snake the difficulty of maintaining or reducing the CO2 footprint of electric generation in the region. While three this draft two of three scenarios that centered on replacing lost generation by the hypothetical removal

  11. November 23, 2004 Mark Walker

    E-Print Network [OSTI]

    and existing commercial buildings. Several months ago Charlie Grist provided me with preliminary savings estimates for various high performance glazing options in both new and existing commercial buildings performance windows/glazing systems in commercial buildings. Sincerely, Gary Curtis The West Wall Group #12;

  12. October 6, 2006 Mark Walker

    E-Print Network [OSTI]

    of the White Salmon River, information is lacking on existing salmonid stock composition in the rest before re-introduction takes place. #12;We ask that the Council reconsider funding this project

  13. November 19, 2004 Mark Walker

    E-Print Network [OSTI]

    Plan effectively removes residential and low income conservation from SUB's conservation program. Heat pumps, windows, manufactured home weatherization and other proven programs are now at risk. SUB has been

  14. October 19, 2007 Mark Walker

    E-Print Network [OSTI]

    require replacing existing coal-fired power plants with low CO2-emitting resources," there is no analysis or negative, on CO2 production are the equivalent of only one or two coal-fired plants, whereas the forecast to nine typical coal-fired plants. (p. 3, emphasis added.) We applaud the Council for laying out

  15. October 6, 2006 Mark Walker

    E-Print Network [OSTI]

    the Northwest Power & Conservation Council to reconsider funding the Juvenile Fish Screen Evaluation in Columbia Plateau project 198506200. The Washington Department of Fish and Wildlife (WDFW) has been actively involved in fish protection throughout the Yakima Basin portion of the Columbia Plateau Province

  16. Robert Walker Sumner Curriculum Vitae

    E-Print Network [OSTI]

    Sumner, Robert W.

    to synthetic objects, increasing their visual realism. #12;1996­1998 Research Assistant, Georgia Tech Animation such as sand, mud, and snow that can be deformed by the impact of animated characters. Summer 1996 Research

  17. November 19, 2004 Mark Walker

    E-Print Network [OSTI]

    region-wide opportunities in end-use energy efficiency and "smart energy" technologies. Smart energy of the region's electric energy efficiency potential. Approximately half of the region's forecast growth over.4 cents per kilowatt- hour. The Council's cost and risk analysis demonstrates the critical need

  18. CLNS 05/1914 Measurement of Absolute Hadronic Branching Fractions of D

    E-Print Network [OSTI]

    a double tag technique. Among measurements for three D 0 and six D + modes, we obtain reference branching fractions B(D 0 ! K \\Gamma Ã? + ) = (3:91 \\Sigma 0:08 \\Sigma 0:09)% and B(D + ! K \\Gamma Ã? + Ã? + ) = (9:5 \\Sigma 0:2 \\Sigma 0:3)%, where the uncertainties are stati

  19. Fractal branching organizations of Ediacaran rangeomorph fronds reveal a lost Proterozoic body plan

    E-Print Network [OSTI]

    Cambridge, University of

    Fractal branching organizations of Ediacaran rangeomorph fronds reveal a lost Proterozoic body plan, using parametric Lindenmayer systems, a first formal model of rangeomorph morphologies reveals a fractal-filling strategies. The fractal body plan of rangeomorphs is shown to maximize surface area, consistent

  20. THESIS FOR THE DEGREE OF LICENTIATE OF PHILOSOPHY Branching of some

    E-Print Network [OSTI]

    Patriksson, Michael

    THESIS FOR THE DEGREE OF LICENTIATE OF PHILOSOPHY Branching of some holomorphic representations Göteborg, Sweden 2002 #12; Abstract In this licentiate thesis we consider a family of Hilbert spaces with his time. He suggested the topic of this licentiate thesis and I have since then bene#28;ted from his

  1. Side branch absorber for exhaust manifold of two-stroke internal combustion engine

    DOE Patents [OSTI]

    Harris, Ralph E. (San Antonio, TX); Broerman, III, Eugene L. (San Antonio, TX); Bourn, Gary D. (Laramie, WY)

    2011-01-11T23:59:59.000Z

    A method of improving scavenging operation of a two-stroke internal combustion engine. The exhaust pressure of the engine is analyzed to determine if there is a pulsation frequency. Acoustic modeling is used to design an absorber. An appropriately designed side branch absorber may be attached to the exhaust manifold.

  2. A Case Study: Using Integrated Approach to Design a Net-Zero Bank Branch

    SciTech Connect (OSTI)

    Athalye, Rahul A.; Xie, YuLong; Liu, Bing; Baechler, Michael C.

    2012-10-26T23:59:59.000Z

    This paper describes a real life project conducted by the Pacific Northwest National Laboratory and PNC Financial Services Group's design team. This is a demonstration project supported by the U.S. Department of Energy's Commercial Partnerships Program, the goal of which is to design and construct a new-zero energy bank branch in Fort Lauderdale, Florida.

  3. BOCA RATON DANIA BEACH DAVIE FORT LAUDERDALE HARBOR BRANCH JUPITER PORT ST. LUCIE Educational Plant Survey

    E-Print Network [OSTI]

    Fernandez, Eduardo

    BOCA RATON DANIA BEACH DAVIE FORT LAUDERDALE HARBOR BRANCH JUPITER PORT ST. LUCIE Educational Plant Survey 2011/2012 ­ 2016/2017 Approved by FAU BOT on June 15, 2011 #12;EDUCATIONAL PLANT SURVEY Florida ...................................................................................................................... ii Educational Plant Survey Team

  4. Distinguishing between linear and branched wormlike micelle solutions using extensional rheology

    E-Print Network [OSTI]

    Rothstein, Jonathan

    available to branched micelles which appear to be extremely efficient in extensional flows. These stress of tails, the charge on the surfactant, the salinity of the solution, and the flow conditions Israelachvili, lubricants and emulsifiers. Further, these micelle solutions are extensively used in agrochemical spraying

  5. Branch-cut singularities in the thermodynamics of Fermi liquid systems

    E-Print Network [OSTI]

    Fominov, Yakov

    #12;Search for non analyticity: If f is smooth and regular in the vicinity of f=0, the standard-analyticities associated with branch-cuts enter via ring diagrams, i.e., ladders which are closed onto themselves p+q p -p, the dominant terms are generated in the thermodynamic potential. In ladders the non- analyticities associated

  6. A Grid-enabled Branch and Bound Algorithm for Solving Challenging Combinatorial Optimization Problems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    crucial issues, mainly dynamic adaptive load balancing, fault tolerance, global informa- tion sharing NP-hard and complex. The Branch and Bound (B&B) algorithm is one of the most popular methods to solve to the characteristics of the model itself and the properties of the grids. The major of these issues are load balancing

  7. Biodegradable branched poly(ethylenimine sulfide) for gene delivery Heebeom Koo 1

    E-Print Network [OSTI]

    Park, Jong-Sang

    Biodegradable branched poly(ethylenimine sulfide) for gene delivery Heebeom Koo 1 , Geun-woo Jin 1 , Hyunseo Kang, Yan Lee, Kihoon Nam, Cheng Zhe Bai, Jong-Sang Park* School of Chemistry & Molecular October 2009 Keywords: Gene transfer Biodegradation Cytotoxicity Cell viability Biocompatibility a b s t r

  8. Harbor Branch researcher on top of bottom life ahead of oil spill

    E-Print Network [OSTI]

    Belogay, Eugene A.

    Harbor Branch researcher on top of bottom life ahead of oil spill By Ed Killer Saturday, June 12 like if touched by an underwater plume of oil. No doubt, much of it would be gone forever. Reed inhabiting the reefs, Reed hoped the oil would not be swept around the tip of Florida and onto the fragile

  9. Revised Final Independent External Peer Review Report for the East Branch Dam, Clarion River,

    E-Print Network [OSTI]

    US Army Corps of Engineers

    was assigned a Dam Safety Action Classification (DSAC) rating of II, generally indicating that failure couldRevised Final Independent External Peer Review Report for the East Branch Dam, Clarion River, Elk County, Pennsylvania: Dam Safety Modification Report Prepared by Battelle Memorial Institute Prepared

  10. 2554 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 28, NO. 3, AUGUST 2013 Branch Flow Model: Relaxations

    E-Print Network [OSTI]

    Low, Steven H.

    2554 IEEE TRANSACTIONS ON POWER SYSTEMS, VOL. 28, NO. 3, AUGUST 2013 Branch Flow Model: Relaxations--Convex relaxation, load flow control, optimal power flow, phase control, power system management. I. INTRODUCTION A and operation of power systems. One of the motivations for our work is the optimal power flow (OPF) problem. OPF

  11. Modeling branching effects on source-sink relationships of the cotton plant , Vronique Letort2

    E-Print Network [OSTI]

    Boyer, Edmond

    -structural models simulate the architectural development and physiological functioning of plants. Most of them to trace back the dynamics of the source-sink relationship within the plant [12]. A few studies have beenModeling branching effects on source-sink relationships of the cotton plant Dong Li1 , Véronique

  12. PARETO GENEALOGIES ARISING FROM A POISSON BRANCHING EVOLUTION MODEL WITH SELECTION

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PARETO GENEALOGIES ARISING FROM A POISSON BRANCHING EVOLUTION MODEL WITH SELECTION THIERRY E processes (and their scaling limits) may be viewed as the genealogical processes of some forward in time the reproduction step. Running title: Pareto genealogies in a Poisson evolution model with se- lection. Keywords

  13. US Green Building Council Keys Branch Presents: Designing Mosquito Free Cisterns

    E-Print Network [OSTI]

    Watson, Craig A.

    US Green Building Council Keys Branch Presents: Designing Mosquito Free Cisterns For Contractors their return to popularity. Overview of the City of Key Wests' BPAS Ordinance and Green Building. By Allison Design, Inc., ARCSA AP The role of Green Sustainability Organizations and the potential "Tipping Point

  14. SENSE: A WIRELESS SENSOR NETWORK Gilbert Chen, Joel Branch, Michael J. Pflug, Lijuan Zhu, and Boleslaw

    E-Print Network [OSTI]

    Varela, Carlos

    Chapter 1 SENSE: A WIRELESS SENSOR NETWORK SIMULATOR Gilbert Chen, Joel Branch, Michael J. Pflug Abstract A new network simulator, called SENSE, has been developed for simulating wireless sensor networks for sensor network research. Keywords: Wireless Sensor Networks, Network Simulation, Component-Based Sim

  15. VEGETATED ROOFS FOR URBAN ECOSYSTEM REMEDIATION: PERFORMANCE AND POLICY IN THE TANYARD BRANCH WATERSHED

    E-Print Network [OSTI]

    Rosemond, Amy Daum

    VEGETATED ROOFS FOR URBAN ECOSYSTEM REMEDIATION: PERFORMANCE AND POLICY IN THE TANYARD BRANCH the urbanization process. This study evaluated the performance and feasibility of using vegetated or green roof systems for urban ecosystem remediation. The stormwater retention performance of a thin-layer green roof

  16. Branching Reactions in Polycarbonate: A Density Functional Study J. Akola and R. O. Jones*

    E-Print Network [OSTI]

    Branching Reactions in Polycarbonate: A Density Functional Study J. Akola and R. O. Jones* Institut on the properties of polymers, and bisphenol A polycarbonate (BPA-PC) is no exception. We describe here the results and rubbers, where the entire system may be viewed as a single cross-linked molecule.2 Polycarbonates (PC

  17. A Branch-and-Bound Algorithm for the Quadratic Assignment Problem Based on the Hungarian Method

    E-Print Network [OSTI]

    the Linear Assignment Problem. Our DP solves the QAP in certain cases, i.e., for some small problems (N Assignment Problem, Branch-and-bound, Quadratic Programming, Integer Programming, Mathematical Programming, which has roots in the Hungarian algorithm (see Munkres [21]) which solves the linear assignment problem

  18. PPPL-3137 -Preprint Date: November1995, UC-420, 426 Observation of new branch of

    E-Print Network [OSTI]

    . M. McGuire, R. Majeski, C. K. Phillips, G. Schilling, G Taylor, and J. R. Wilson Princeton Plasma Eigenmodes in TFTR E Fredrickson, R Budny, Z Chang, C Z Cheng, G Y Fu, E Mazzucato, R Nazikian, A. Janos, K eigenmodes as reported by Taylor et al. Phys. Fluids B 5 2437 (1993). The new branch has so far only been

  19. PPPL3137 Preprint Date: November1995, UC420, 426 Observation of new branch of

    E-Print Network [OSTI]

    . M. McGuire, R. Majeski, C. K. Phillips, G. Schilling, G Taylor, and J. R. Wilson Princeton Plasma Eigenmodes in TFTR E Fredrickson, R Budny, Z Chang, C Z Cheng, G Y Fu, E Mazzucato, R Nazikian, A. Janos, K eigenmodes as reported by Taylor et al. Phys. Fluids B 5 2437 (1993). The new branch has so far only been

  20. High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization

    E-Print Network [OSTI]

    Arslan, Tughrul

    High Speed Max-Log-MAP Turbo SISO Decoder Implementation Using Branch Metric Normalization J. H.Erdogan@ee.ed.ac.uk, Tughrul.Arslan@ee.ed.ac.uk Abstract The authors present a turbo soft-in soft-out (SISO) decoder based. The turbo decoder with the proposed technique has been synthesized to evaluate its power consumption

  1. A stepped leader model for lightning including charge distribution in branched channels

    SciTech Connect (OSTI)

    Shi, Wei; Zhang, Li [School of Electrical Engineering, Shandong University, Jinan 250061 (China); Li, Qingmin, E-mail: lqmeee@ncepu.edu.cn [Beijing Key Lab of HV and EMC, North China Electric Power University, Beijing 102206 (China); State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, Beijing 102206 (China)

    2014-09-14T23:59:59.000Z

    The stepped leader process in negative cloud-to-ground lightning plays a vital role in lightning protection analysis. As lightning discharge usually presents significant branched or tortuous channels, the charge distribution along the branched channels and the stochastic feature of stepped leader propagation were investigated in this paper. The charge density along the leader channel and the charge in the leader tip for each lightning branch were approximated by introducing branch correlation coefficients. In combination with geometric characteristics of natural lightning discharge, a stochastic stepped leader propagation model was presented based on the fractal theory. By comparing simulation results with the statistics of natural lightning discharges, it was found that the fractal dimension of lightning trajectory in simulation was in the range of that observed in nature and the calculation results of electric field at ground level were in good agreement with the measurements of a negative flash, which shows the validity of this proposed model. Furthermore, a new equation to estimate the lightning striking distance to flat ground was suggested based on the present model. The striking distance obtained by this new equation is smaller than the value estimated by previous equations, which indicates that the traditional equations may somewhat overestimate the attractive effect of the ground.

  2. Analysis of the HVAC System at the Willow Branch Intermediate School

    E-Print Network [OSTI]

    Wei, G.

    1997-01-01T23:59:59.000Z

    was built in 1983. It was recently expanded in 1994 and renamed the Willow Branch Intermediate School. It now has a total floor area of 88,617 square feet. The system under investigation is a water-loop heat pump system which provides the HVAC needs...

  3. Potential for Branch Predictor Adaptation at the Program and Phase Level for Performance and Energy-Efficiency

    E-Print Network [OSTI]

    Co, Michele

    Potential for Branch Predictor Adaptation at the Program and Phase Level for Performance and Energy-Efficiency savings were performed. The performance and energy- efficiency of an 8-wide issue, out-of-order processor of the branch predictor configuration to improve overall processor energy- efficiency. The results

  4. A universal high energy anomaly in angle resolved photoemission spectra of high temperature superconductors -- possible evidence of spinon and holon branches

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    possible evidence of spinon and holon branches J. Graf, 1, 2the pro- posed spinon and holon dispersions, respectively.quasiparticles into a spinon and holon branch in the high T

  5. Precise measurement of branching ratios in the beta decay of 38Ca

    E-Print Network [OSTI]

    Park, H I; Iacob, V E; Bencomo, M; Chen, L; Horvat, V; Nica, N; Roeder, B T; McCleskey, E; Tribble, R E; Towner, I S

    2015-01-01T23:59:59.000Z

    We present the full description of a measurement of the branching ratios for the beta-decay of 38Ca. This decay includes five allowed 0+ --> 1+ branches and a superallowed 0+ --> 0+ one. With our new result for the latter, we determine its ft value to be 3062.3(68) s, a result whose precision (0.2%) is comparable to the precision of the thirteen well known 0+ --> 0+ transitions used up till now for the determination of Vud, the up-down quark-mixing element of the CKM matrix. The 38Ca superallowed transition thus becomes the first addition to this set of transitions in nearly a decade and the first for which a precise mirror comparison is possible, thus enabling an improved test of the isospin-symmetry-breaking corrections required for the extraction of Vud.

  6. Branched Microstructures in the Ginzburg-Landau Model of Type-I Superconductors

    E-Print Network [OSTI]

    Sergio Conti; Felix Otto; Sylvia Serfaty

    2015-07-03T23:59:59.000Z

    We consider the Ginzburg-Landau energy for a type-I superconductor in the shape of an infinite three-dimensional slab, with two-dimensional periodicity, with an applied magnetic field which is uniform and perpendicular to the slab. We determine the optimal scaling law of the minimal energy in terms of the parameters of the problem, when the applied magnetic field is sufficiently small and the sample sufficiently thick. This optimal scaling law is proven via ansatz-free lower bounds and an explicit branching construction which refines further and further as one approaches the surface of the sample. Two different regimes appear, with different scaling exponents. In the first regime, the branching leads to an almost uniform magnetic field pattern on the boundary; in the second one the inhomogeneity survives up to the boundary.

  7. Measurement of the Branching Fraction of B0 Meson Decay to a_1^+(1260) pi-

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-07-12T23:59:59.000Z

    We present a preliminary measurement of the branching fraction of the B meson decay B{sup 0} {yields} a{sub 1}{sup +}(1260){pi}{sup -}with a{sub 1}{sup +}(1260) {yields} {pi}{sup +}{pi}{sup +}{pi}{sup -}. The data sample corresponds to 218 x 10{sup 6} B{bar B} pairs produced in e{sup +}e{sup -} annihilation through the {Upsilon}(4S) resonance. We find the branching fraction (40.2 {+-} 3.9 {+-} 3.9) x 10{sup -6}, where the first error quoted is statistical and the second is systematic. The fitted values of the a{sub 1}(1260) parameters are m{sub a{sub 1}} = 1.22 {+-} 0.02 GeV/c{sup 2} and {Lambda}{sub a{sub 1}} = 0.423 {+-} 0.050 GeV/c{sup 2}.

  8. Branching fractions and direct CP asymmetries of charmless decay modes at the Tevatron

    SciTech Connect (OSTI)

    Morello, Michael; /Pisa, Scuola Normale Superiore /INFN, Pisa

    2006-12-01T23:59:59.000Z

    The authors present new CDF results on the branching fractions and time-integrated direct CP asymmetries for B{sup 0} and B{sub s}{sup 0} decay modes into pairs of charmless charged hadrons (pion or kaon). The data set for this update amounts to 1 fb{sup -1} of {bar p}p collisions at {radical}s = 1.96 TeV. They report the first observation of the B{sub s}{sup 0} {yields} K{sup -}{pi}{sup +} mode and a measurement of its branching fraction and direct CP asymmetry. They also observe for the first time two charmless decays of b-baryon: {Lambda}{sub b}{sup 0} {yields} p{pi}{sup -} and {Lambda}{sub b}{sup 0} {yields} pK{sup -}.

  9. Branching fractions for transitions of {psi}(2S) to J/{psi}

    SciTech Connect (OSTI)

    Mendez, H. [University of Puerto Rico, Mayaguez, 00681 (Puerto Rico); Ge, J. Y.; Miller, D. H.; Shipsey, I. P. J.; Xin, B. [Purdue University, West Lafayette, Indiana 47907 (United States); Adams, G. S.; Anderson, M.; Cummings, J. P.; Danko, I.; Hu, D.; Moziak, B.; Napolitano, J. [Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); He, Q.; Insler, J.; Muramatsu, H.; Park, C. S.; Thorndike, E. H.; Yang, F. [University of Rochester, Rochester, New York 14627 (United States); Artuso, M.; Blusk, S. [Syracuse University, Syracuse, New York 13244 (United States)] (and others)

    2008-07-01T23:59:59.000Z

    We report determination of branching fractions for the decays {psi}(2S){yields}h+J/{psi}, where h=any, {pi}{sup +}{pi}{sup -}, {pi}{sup 0}{pi}{sup 0}, {eta}, {pi}{sup 0}, and {gamma}{gamma} through {chi}{sub c0,1,2}. These measurements use 27M {psi}(2S) decays produced in e{sup +}e{sup -} collision data collected with the CLEO detector. The resulting branching fractions and ratios thereof improve upon previously achieved precision in all cases, and in combination with other measurements permit determination of B({chi}{sub cJ}{yields}{gamma}J/{psi}) and B({psi}(2S){yields}light hadrons)

  10. Perspectives on the viscoelasticity and flow behavior of entangled linear and branched polymers

    E-Print Network [OSTI]

    Snijkers, F; Olmsted, P D; Vlassopoulos, D

    2015-01-01T23:59:59.000Z

    We briefly review the recent advances in the rheology of entangled polymers and identify emerging research trends and outstanding challenges, especially with respect to branched polymers. Emphasis is placed on the role of well-characterized model systems, as well as the synergy of synthesis-characterization, rheometry and modeling/simulations. The theoretical framework for understanding the observed linear and nonlinear rheological phenomena is the tube model which is critically assessed in view of its successes and shortcomings, whereas alternative approaches are briefly discussed. Finally, intriguing experimental findings and controversial issues that merit consistent explanation, such as shear banding instabilities, multiple stress overshoots in transient simple shear and enhanced steady-state elongational viscosity in polymer solutions, are discussed, whereas future directions such as branch point dynamics and anisotropic monomeric friction are outlined.

  11. Quantum Darwinism: Entanglement, branches, and the emergent classicality of redundantly stored quantum information

    SciTech Connect (OSTI)

    Blume-Kohout, Robin; Zurek, Wojciech H. [Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA and Institute for Quantum Information, California Institute of Technology, Pasadena, California 91125 (United States); Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    2006-06-15T23:59:59.000Z

    We lay a comprehensive foundation for the study of redundant information storage in decoherence processes. Redundancy has been proposed as a prerequisite for objectivity, the defining property of classical objects. We consider two ensembles of states for a model universe consisting of one system and many environments: the first consisting of arbitrary states, and the second consisting of 'singly branching' states consistent with a simple decoherence model. Typical states from the random ensemble do not store information about the system redundantly, but information stored in branching states has a redundancy proportional to the environment's size. We compute the specific redundancy for a wide range of model universes, and fit the results to a simple first-principles theory. Our results show that the presence of redundancy divides information about the system into three parts: classical (redundant); purely quantum; and the borderline, undifferentiated or 'nonredundant', information.

  12. Single-enzyme kinetics with branched pathways: exact theory and series expansion

    E-Print Network [OSTI]

    Ashok Garai; Debashish Chowdhury

    2014-12-10T23:59:59.000Z

    The progress of the successive rounds of catalytic conversion of substrates into product(s) by a single enzyme is characterized by the distribution of turnover times. Establishing the most general form of dependence of this distribution on the substrate concentration [S] is one of the fundamental challenges in single molecule enzymology. The distribution of the times of dwell of a molecular motor at the successive positions on its track is an analogous quantity. We derive approximate series expansions for the [ATP]-dependence of the first two moments of the dwell time distributions of motors that catalyze hydrolysis of ATP to draw input energy. Comparison between our results for motors with branched pathways and the corresponding expressions reported earlier for linear enzymatic pathways provides deep insight into the effects of the branches. Such insight is likely to help in discovering the most general form of [S]-dependence of these fundamental distributions.

  13. Detection of a branched alkyl molecule in the interstellar medium: iso-propyl cyanide

    E-Print Network [OSTI]

    Belloche, Arnaud; Müller, Holger S P; Menten, Karl M

    2014-01-01T23:59:59.000Z

    The largest non-cyclic molecules detected in the interstellar medium (ISM) are organic with a straight-chain carbon backbone. We report an interstellar detection of a branched alkyl molecule, iso-propyl cyanide (i-C3H7CN), with an abundance 0.4 times that of its straight-chain structural isomer. This detection suggests that branched carbon-chain molecules may be generally abundant in the ISM. Our astrochemical model indicates that both isomers are produced within or upon dust grain ice mantles through the addition of molecular radicals, albeit via differing reaction pathways. The production of iso-propyl cyanide appears to require the addition of a functional group to a non-terminal carbon in the chain. Its detection therefore bodes well for the presence in the ISM of amino acids, for which such side-chain structure is a key characteristic.

  14. CLNS 07/2005 Measurement of Absolute Hadronic Branching Fractions of D

    E-Print Network [OSTI]

    . Among measurements for three D 0 and six D + modes, we obtain reference branching fractions B(D 0 ! K \\Gamma Ã? + ) = (3:891 \\Sigma 0:035 \\Sigma 0:059 \\Sigma 0:035)% and B(D + ! K \\Gamma Ã? + Ã? + ) = (9:14 \\Sigma 0:10 \\Sigma 0:16 \\Sigma 0:07)%, where the first uncertainty is statistical, the second is all

  15. Circadian oscillation of starch branching enzyme gene expression in the sorghum endosperm

    SciTech Connect (OSTI)

    Mutisya, J.; Sun, C.; Jansson, C.

    2009-08-31T23:59:59.000Z

    Expression of the three SBE genes, encoding starch branching enzymes, in the sorghum endosperm exhibited a diurnal rhythm during a 24-h cycle. Remarkably, the oscillation in SBE expression was maintained in cultured spikes after a 48-h dark treatment, also when fed a continuous solution of sucrose or abscisic acid. Our findings suggest that the rhythmicity in SBE expression in the endosperm is independent of cues from the photosynthetic source and that the oscillator resides within the endosperm itself.

  16. Improving the LP bound of a MILP by dual concurrent branching and ...

    E-Print Network [OSTI]

    2013-06-30T23:59:59.000Z

    Page 1 ... Furthermore the restrictions of the dual values can be used for studying the addition of arbitrary .... Now let the branch Bi,j be the set {bi,j| y0 ? bi,j ? V i,j}. So Bi,j is a linear ...... Only for the ease of the notations we don't consider cases of case distinction like x1 = 0 ? x2 = 0. .... So what's wrong with our technique?

  17. Regulation of branching by phytochrome B and PPFD in Arabidopsis thaliana

    E-Print Network [OSTI]

    Chou, Nan-yen

    2008-10-10T23:59:59.000Z

    in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee Scott Finlayson Committee Members Dirk Hays Hisashi Koiwa Head of Department David Baltensperger August 2008 Major Subject... formation and the further outgrowth of the axillary buds. Once formed, an axillary bud can either grow out to give rise to an individual branch or remain dormant. Both axillary meristem initiation and bud outgrowth can potentially determine the final...

  18. Measurement of the Branching Fraction for J/?-> p \\bar{p}?and p \\bar{p} ?^{'}

    E-Print Network [OSTI]

    BES collaboration

    2009-02-20T23:59:59.000Z

    Using 58$\\times 10^{6}$ $\\jpsi$ events collected with the Beijing Spectrometer (BESII) at the Beijing Electron Positron Collider (BEPC), the branching fractions of $\\jpsi$ to $p\\bar{p}\\eta$ and $p\\bar{p}\\etap$ are determined. The ratio $\\frac{\\Gamma(\\jpsi\\rar\\ppb\\eta)}{\\Gamma(\\jpsi\\rar\\ppb)}$ obtained by this analysis agrees with expectations based on soft-pion theorem calculations.

  19. Implications of a large B s ? ? + ? ? branching fraction for the minimal supersymmetric standard model

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Hooper, Dan; Kelso, Chris

    2012-05-01T23:59:59.000Z

    Recently, the CDF Collaboration reported the first nonzero measurement of the Bs????? branching fraction. The LHCb, CMS and ATLAS, collaborations have reported upper limits that are in tension with the CDF result. We consider the implications of these measurements for the specific case of the minimal supersymmetric standard model. We also discuss the implications of these measurements for neutralino dark matter and the supersymmetric contribution to the anomalous magnetic moment of the muon.

  20. Measurement of branching fraction and first evidence of CP violation in B??a?±(1260)?? decays

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Dalseno, J.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Bay, A.; Belous, K.; Bhuyan, B.; et al

    2012-11-01T23:59:59.000Z

    We present a measurement of the branching fraction and time-dependent CP violation parameters in B??a±?(1260)?? decays. The results are obtained from the final data sample containing 772×10? BB¯¯¯ pairs collected at the ?(4S) resonance with the Belle detector at the KEKB asymmetric-energy e?e? collider. We obtain the product branching fraction B(B??a±?(1260)??)×B(a±?(1260)??±???±)=(11.1±1.0(stat)±1.4(syst))×10?? and an upper limit on the product branching fraction for a possible decay with the same final state B(B??a±?(1320)??)×B(a±?(1320)??±???±)more »respectively. Simultaneously, we also extract the CP-conserving parameters ?C=+0.54±0.11(stat)±0.07(syst), ?S=–0.09±0.14(stat)±0.06(syst), which, respectively, describe a rate difference and strong phase difference between the decay channels where the a±? does not contain the spectator quark and those where it does. We find first evidence of mixing-induced CP violation in B??a±?(1260)?? decays with 3.1? significance. The rate where the a±? does not contain the spectator quark from the B meson is found to dominate the rate where it does at the 4.1? level. However, there is no evidence for either time- and flavor-integrated direct CP violation or flavor-dependent direct CP violation.« less

  1. Measurement of branching fraction and first evidence of CP violation in B??a?±(1260)?? decays

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Dalseno, J.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Bay, A.; Belous, K.; Bhuyan, B.; Bozek, A.; Bra?ko, M.; Brovchenko, O.; Browder, T. E.; Chekelian, V.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, I.-S.; Cho, K.; Choi, Y.; Doležal, Z.; Drásal, Z.; Eidelman, S.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Garmash, A.; Goh, Y. M.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Julius, T.; Kang, J. H.; Kiesling, C.; Kim, H. O.; Kim, J. B.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Koblitz, S.; Kodyš, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kronenbitter, B.; Kuhr, T.; Kumita, T.; Kwon, Y.-J.; Lee, S.-H.; Li, J.; Libby, J.; Liu, C.; Liu, Z. Q.; Louvot, R.; MacNaughton, J.; Matvienko, D.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mohanty, G. B.; Mohapatra, D.; Moll, A.; Muramatsu, N.; Nakao, M.; Natkaniec, Z.; Nedelkovska, E.; Ng, C.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petri?, M.; Piilonen, L. E.; Prim, M.; Prothmann, K.; Ritter, M.; Röhrken, M.; Sahoo, H.; Sakai, Y.; Sanuki, T.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shibata, T.-A.; Shiu, J.-G.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y.-S.; Solovieva, E.; Stari?, M.; Sumihama, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Vanhoefer, P.; Varner, G.; Wang, C. H.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

    2012-11-01T23:59:59.000Z

    We present a measurement of the branching fraction and time-dependent CP violation parameters in B??a±?(1260)?? decays. The results are obtained from the final data sample containing 772×10? BB¯¯¯ pairs collected at the ?(4S) resonance with the Belle detector at the KEKB asymmetric-energy e?e? collider. We obtain the product branching fraction B(B??a±?(1260)??)×B(a±?(1260)??±???±)=(11.1±1.0(stat)±1.4(syst))×10?? and an upper limit on the product branching fraction for a possible decay with the same final state B(B??a±?(1320)??)×B(a±?(1320)??±???±)±? does not contain the spectator quark and those where it does. We find first evidence of mixing-induced CP violation in B??a±?(1260)?? decays with 3.1? significance. The rate where the a±? does not contain the spectator quark from the B meson is found to dominate the rate where it does at the 4.1? level. However, there is no evidence for either time- and flavor-integrated direct CP violation or flavor-dependent direct CP violation.

  2. Branching fractions and CP asymmetries in two-body nonleptonic charmless b-hadron decays

    SciTech Connect (OSTI)

    Warburton, Andreas; /McGill U.

    2004-11-01T23:59:59.000Z

    Relative branching fractions of B{sub d,s}{sup 0} {yields} h{sup +}h'{sup -} decays (where h,h' = K or {pi}) and the direct Cp asymmetry A{sub CP} in the B{sub d}{sup 0} {yields} K{sup +}{pi}{sup -} mode are measured with 179 {+-} 11 pb {sup -1} of data collected using the CDF II detector at the Fermilab Tevatron p{bar p} collider. The first branching-fraction measurement of a B{sub s}{sup 0} meson to two pseudoscalars, {Beta}(B{sub s}{sup 0} {yields} K{sup +} K{sup -}), and a search for the baryon mode {Lambda}{sub b}{sup 0} {yields} p{sup +} h{sup -} are also presented, in addition to branching-fraction limits on the rare channels B{sub s}{sup 0} {yields} K{sup +} {pi}{sup -}, B{sub d}{sup 0} {yields} K{sup +}K{sup -}, and B{sub s}{sup 0} {yields} {pi}{sup +}{pi}{sup -}.

  3. Functional significance of octameric RuvA for a branch migration complex from Thermus thermophilus

    SciTech Connect (OSTI)

    Fujiwara, Yoshie [Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan); Mayanagi, Kouta [Nagahama Institute of Bio-Science and Technology, 1266 Tamura-cho, Nagahama, Shiga 526-0829 (Japan); The Takara-Bio Endowed Division, Institute for Protein Research, Osaka University, 6-2-3, Furuedai, Suita, Osaka 565-0874 (Japan); JST-BIRD, Nagahama 526-0829 (Japan); Morikawa, Kosuke [The Takara-Bio Endowed Division, Institute for Protein Research, Osaka University, 6-2-3, Furuedai, Suita, Osaka 565-0874 (Japan); CREST, JST, Sanban-cho, Chiyoda-ku, Tokyo 102-0075 (Japan)], E-mail: morikako@protein.osaka-u.ac.jp

    2008-02-08T23:59:59.000Z

    The RuvAB complex promotes migration of Holliday junction at the late stage of homologous recombination. The RuvA tetramer specifically recognizes Holliday junction to form two types of complexes. A single tetramer is bound to the open configuration of the junction DNA in complex I, while the octameric RuvA core structure sandwiches the same junction in complex II. The hexameric RuvB rings, symmetrically bound to both sides of RuvA on Holliday junction, pump out DNA duplexes, depending upon ATP hydrolysis. We investigated functional differences between the wild-type RuvA from Thermus thermophilus and mutants impaired the ability of complex II formation. These mutant RuvA, exclusively forming complex I, reduced activities of branch migration and ATP hydrolysis, suggesting that the octameric RuvA is essential for efficient branch migration. Together with our recent electron microscopic analysis, this finding provides important insights into functional roles of complex II in the coordinated branch migration mechanism.

  4. Genealogy of flows of continuous-state branching processes via flows of partitions and the Eve property

    E-Print Network [OSTI]

    Labbé, Cyril

    2012-01-01T23:59:59.000Z

    We encode the genealogy of a continuous-state branching process associated with a branching mechanism $\\Psi$ - or $\\Psi$-CSBP in short - using a stochastic flow of partitions. This encoding holds for all branching mechanisms and appears as a very tractable object to deal with asymptotic behaviours and convergences. In particular we study the so-called Eve property - the existence of an ancestor from which the entire population descends asymptotically - and give a necessary and sufficient condition on the $\\Psi$-CSBP for this property to hold. Finally, we show that the flow of partitions unifies the lookdown representation and the flow of subordinators when the Eve property holds.

  5. From statistics of regular tree-like graphs to distribution function and gyration radius of branched polymers

    E-Print Network [OSTI]

    Grosberg, Alexander Y

    2015-01-01T23:59:59.000Z

    We consider flexible branched polymer, with quenched branch structure, and show that its conformational entropy as a function of its gyration radius $R$, at large $R$, obeys, in the scaling sense, $\\Delta S \\sim R^2/(a^2L)$, with $a$ bond length (or Kuhn segment) and $L$ defined as an average spanning distance. We show that this estimate is valid up to at most the logarithmic correction for any tree. We do so by explicitly computing the largest eigenvalues of Kramers matrices for both regular and "sparse" 3-branched trees, uncovering on the way their peculiar mathematical properties.

  6. BBSGI.MAN -BRANCH-BUS/SILICON GRAPHICS DATA ACQUISITION SYSTEM (BBSGI) For IRIX 5.x systems -AT&T UNIX System V Release 4

    E-Print Network [OSTI]

    BBSGI.MAN - BRANCH-BUS/SILICON GRAPHICS DATA ACQUISITION SYSTEM (BBSGI) For IRIX 5.x systems - AT&T UNIX System V Release 4 r.imossi/oldf/bnl 25-Oct-1993 BRANCH-BUS/SILICON GRAPHICS DATA ACQUISITION The BRANCH-BUS/SILICON GRAPHICS DATA ACQUISITION SYSTEM (BBSGI) is a product of the Online Data Facility

  7. THE ASYMPTOTIC GIANT BRANCH AND THE TIP OF THE RED GIANT BRANCH AS PROBES OF STAR FORMATION HISTORY: THE NEARBY DWARF IRREGULAR GALAXY KKH 98

    SciTech Connect (OSTI)

    Melbourne, J. [Caltech Optical Observatories, Division of Physics, Mathematics and Astronomy, Mail Stop 301-17, California Institute of Technology, Pasadena, CA 91125 (United States); Williams, B.; Dalcanton, J. [Department of Astronomy, Box 351580, University of Washington, Seattle, WA 98195 (United States); Ammons, S. M.; Max, C.; Koo, D. C. [University of California Observatories/Lick Observatory, Department of Astronomy and Astrophysics, University of California at Santa Cruz, 1156 High Street, Santa Cruz, CA 95064 (United States); Girardi, Leo [Osservatorio Astronomico di Padova-INAF, Padova (Italy); Dolphin, A., E-mail: jmel@caltech.ed, E-mail: ben@astro.washington.ed, E-mail: jd@astro.washington.ed, E-mail: ammons@ucolick.or, E-mail: max@ucolick.or, E-mail: koo@ucolick.or, E-mail: leo.girardi@oapd.inaf.i, E-mail: adolphin@raytheon.co [Raytheon, 1151 E. Hermans Road, Tucson, AZ 85706 (United States)

    2010-03-20T23:59:59.000Z

    We investigate the utility of the asymptotic giant branch (AGB) and the red giant branch (RGB) as probes of the star formation history (SFH) of the nearby (D = 2.5 Mpc) dwarf irregular galaxy, KKH 98. Near-infrared (near-IR) Keck Laser Guide Star Adaptive Optics (AO) images resolve 592 IR-bright stars reaching over 1 mag below the tip of the RGB. Significantly deeper optical (F475W and F814W) Hubble Space Telescope images of the same field contain over 2500 stars, reaching to the red clump and the main-sequence turnoff for 0.5 Gyr old populations. Compared to the optical color-magnitude diagram (CMD), the near-IR CMD shows significantly tighter AGB sequences, providing a good probe of the intermediate-age (0.5-5 Gyr) populations. We match observed CMDs with stellar evolution models to recover the SFH of KKH 98. On average, the galaxy has experienced relatively constant low-level star formation (5 x 10{sup -4} M{sub sun} yr{sup -1}) for much of cosmic time. Except for the youngest main-sequence populations (age <0.1 Gyr), which are typically fainter than the AO data flux limit, the SFH estimated from the 592 IR-bright stars is a reasonable match to that derived from the much larger optical data set. Differences between the optical- and IR-derived SFHs for 0.1-1 Gyr populations suggest that current stellar evolution models may be overproducing the AGB by as much as a factor of 3 in this galaxy. At the depth of the AO data, the IR-luminous stars are not crowded. Therefore, these techniques can potentially be used to determine the stellar populations of galaxies at significantly further distances.

  8. Measurement of the ratio of branching fractions B(B±-->J/ psi pi ±)/B(B±-->J/ psi K±)

    E-Print Network [OSTI]

    Paus, Christoph M. E.

    We report a measurement of the ratio of branching fractions of the decays B[superscript ±]?J/??[superscript ±] and B[superscript ±]?J/?K[superscript ±] using the CDF II detector at the Fermilab Tevatron Collider. The signal ...

  9. Off-fault Damage Associated with a Localized Bend in the North Branch San Gabriel Fault, California

    E-Print Network [OSTI]

    Becker, Andrew 1987-

    2012-08-15T23:59:59.000Z

    Structures within very large displacement, mature fault zones, such as the North Branch San Gabriel Fault (NBSGF), are the product of a complex combination of processes. Off-fault damage within a damage zone and first-order geometric asperities...

  10. Simulation of the ultrasonic array response from real branched cracks using an efficient finite element method

    SciTech Connect (OSTI)

    Felice, Maria V. [Department of Mechanical Engineering, University of Bristol, Bristol BS8 1TR, United Kingdom and Rolls-Royce plc., Bristol BS34 7QE (United Kingdom); Velichko, Alexander; Wilcox, Paul D. [Department of Mechanical Engineering, University of Bristol, Bristol BS8 1TR (United Kingdom); Barden, Tim J.; Dunhill, Tony K. [Rolls-Royce plc., Bristol BS34 7QE (United Kingdom)

    2014-02-18T23:59:59.000Z

    A hybrid model to simulate the ultrasonic array response from stress corrosion cracks is presented. These cracks are branched and difficult to detect so the model is required to enable optimization of an array design. An efficient frequency-domain finite element method is described and selected to simulate the ultrasonic scattering. Experimental validation results are presented, followed by an example of the simulated ultrasonic array response from a real stress corrosion crack whose geometry is obtained from an X-ray Computed Tomography image. A simulation-assisted array design methodology, which includes the model and use of real crack geometries, is proposed.

  11. Process for the conversion of lower alcohols to higher branched oxygenates

    DOE Patents [OSTI]

    Barger, Paul T. (Arlington Heights, IL)

    1996-01-01T23:59:59.000Z

    A process is provided for the production of branched C.sub.4+ oxygenates from lower alcohols such as methanol, ethanol, propanol and mixtures thereof. The process comprises contacting the lower alcohols with a solid catalyst comprising a mixed metal oxide support having components selected from the group consisting of oxides of zinc, magnesium, zirconia, titanium, manganese, chromium, and lanthanides, and an activation metal selected from the group consisting of Group VIII metal, Group IB metals, and mixtures thereof. The advantage of the process is improved yields and selectivity to isobutanol which can subsequently be employed in the production of high octane motor gasoline.

  12. Process for the conversion of lower alcohols to higher branched oxygenates

    DOE Patents [OSTI]

    Barger, P.T.

    1996-09-24T23:59:59.000Z

    A process is provided for the production of branched C{sub x} oxygenates from lower alcohols such as methanol, ethanol, propanol and mixtures thereof. The process comprises contacting the lower alcohols with a solid catalyst comprising a mixed metal oxide support having components selected from the group consisting of oxides of zinc, magnesium, zirconia, titanium, manganese, chromium, and lanthanides, and an activation metal selected from the group consisting of Group VIII metal, Group IB metals, and mixtures thereof. The advantage of the process is improved yields and selectivity to isobutanol which can subsequently be employed in the production of high octane motor gasoline.

  13. Branching ratios from B{sub s} and {Lambda}{sub b}{sup 0}

    SciTech Connect (OSTI)

    Matthew S. Martin

    2004-05-28T23:59:59.000Z

    CDF Run II relative branching ratio measurements for 65 pb{sup -1} of data in the channels B{sub s} {yields} D{sub s}{sup {-+}}{pi}{sup {-+}}, {Lambda} {sub b}{sup 0} {yields} {Lambda}{sub c}{sup {+-}}{pi}{sup {-+}} and B {yields} h{sup +}h{sup -} are presented. Further, an observation of B{sub s} {yields} K{sup {+-}} K{sup {-+}} and a measurement of A{sub CP} are presented.

  14. Scaling exponents for a monkey on a tree - fractal dimensions of randomly branched polymers

    E-Print Network [OSTI]

    Hans-Karl Janssen; Olaf Stenull

    2012-03-13T23:59:59.000Z

    We study asymptotic properties of diffusion and other transport processes (including self-avoiding walks and electrical conduction) on large randomly branched polymers using renormalized dynamical field theory. We focus on the swollen phase and the collapse transition, where loops in the polymers are irrelevant. Here the asymptotic statistics of the polymers is that of lattice trees, and diffusion on them is reminiscent of the climbing of a monkey on a tree. We calculate a set of universal scaling exponents including the diffusion exponent and the fractal dimension of the minimal path to 2-loop order and, where available, compare them to numerical results.

  15. Publisher's note: Branching ratios for the beta decay of Na-21 (vol 74, pg 015501, 2006)

    E-Print Network [OSTI]

    Iacob, V. E.; Hardy, John C.; Gagliardi, Carl A.; Goodwin, J.; Nica, N.; Park, H. I.; Tabacaru, G.; Trache, L.; Tribble, Robert E.; Zhai, Y.; Towner, I. S.

    2006-01-01T23:59:59.000Z

    PHYSICAL REVIEW C 74, 029901(E) (2006) Publisher?s Note: Branching ratios for the ? decay of 21Na [Phys. Rev. C 74, 015501 (2006)] V. E. Iacob, J. C. Hardy, C. A. Gagliardi, J. Goodwin, N. Nica, H. I. Park, G. Tabacaru, L. Trache, R. E. Tribble..., Y. Zhai, and I. S. Towner (Received 31 July 2006; published 11 August 2006) DOI: 10.1103/PhysRevC.74.029901 PACS number(s): 27.30.+t, 23.40.?s, 99.10.Fg This paper was published online on 14 July 2006 with formatting errors in Eqs. (7) and (9...

  16. Globular clusters with the extended horizontal-branch as remaining cores of galaxy building blocks

    E-Print Network [OSTI]

    Young-Wook Lee; Hansung B. Gim; Chul Chung

    2007-07-11T23:59:59.000Z

    The relics of building blocks that made stellar halo and bulge are yet to be discovered unless they were completely disrupted throughout the history of the Galaxy. Here we suggest that about 25% of the Milky Way globular clusters have characteristics of the remaining cores of these early building blocks rather than genuine star clusters. They are clearly distinct from other normal globular clusters in the presence of extended horizontal-branch and multiple stellar populations, in mass (brightness), and most importantly in orbital kinematics. Based on this result, a three-stage formation picture of the Milky Way is suggested, which includes early mergers, collapse, and later accretion.

  17. The Discovery of Archaea, the 'Third Branch of Life', and Its Impacts

    Office of Scientific and Technical Information (OSTI)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOnItem Not Found Item Not Found The item youThe Discovery of Archaea, the 'Third Branch of

  18. Branching laws for polynomial endomorphisms in CAR algebra for fermions, uniformly hyperfinite algebras and Cuntz algebras

    E-Print Network [OSTI]

    Mitsuo Abe; Katsunori Kawamura

    2006-06-20T23:59:59.000Z

    Previously, we have shown that the CAR algebra for fermions is embedded in the Cuntz algebra ${\\cal O}_{2}$ in such a way that the generators are expressed in terms of polynomials in the canonical generators of the latter, and it coincides with the U(1)-fixed point subalgebra ${\\cal A}\\equiv {\\cal O}_{2}^{U(1)}$ of ${\\cal O}_{2}$ for the canonical gauge action. Based on this embedding formula, some properties of ${\\cal A}$ are studied in detail by restricting those of ${\\cal O}_{2}$. Various endomorphisms of ${\\cal O}_{2}$, which are defined by polynomials in the canonical generators, are explicitly constructed, and transcribed into those of ${\\cal A}$. Especially, we investigate branching laws for a certain family of such endomorphisms with respect to four important representations, i.e., the Fock representation, the infinite wedge representation and their duals. These endomorphisms are completely classified by their branching laws. As an application, we show that the reinterpretation of the Fock vacuum as the Dirac vacuum is described in representation theory through a mixture of fermions.

  19. Branches of electrostatic turbulence inside solitary plasma structures in the auroral ionosphere

    SciTech Connect (OSTI)

    Golovchanskaya, Irina V.; Kozelov, Boris V. [Polar Geophysical Institute, Apatity 184209 (Russian Federation); Chernyshov, Alexander A.; Mogilevsky, Mikhail M. [Space research Institute, Moscow 117997 (Russian Federation); Ilyasov, Askar A. [Moscow Institute of Physics and Technology, Moscow 141700 (Russian Federation); Space research Institute, Moscow 117997 (Russian Federation)

    2014-08-15T23:59:59.000Z

    The excitation of electrostatic turbulence inside space-observed solitary structures is a central topic of this exposition. Three representative solitary structures observed in the topside auroral ionosphere as large-amplitude nonlinear signatures in the electric field and magnetic-field-aligned current on the transverse scales of ?10{sup 2}–10{sup 3}?m are evaluated by the theories of electrostatic wave generation in inhomogeneous background configurations. A quantitative analysis shows that the structures are, in general, effective in destabilizing the inhomogeneous energy-density-driven (IEDD) waves, as well as of the ion acoustic waves modified by a shear in the parallel drift of ions. It is demonstrated that the dominating branch of the electrostatic turbulence is determined by the interplay of various driving sources inside a particular solitary structure. The sources do not generally act in unison, so that their common effect may be inhibiting for excitation of electrostatic waves of a certain type. In the presence of large magnetic-field-aligned current, which is not correlated to the inhomogeneous electric field inside the structure, the ion-acoustic branch becomes dominating. In other cases, the IEDD instability is more central.

  20. Tracing the Metal-Poor M31 Stellar Halo with Blue Horizontal Branch Stars

    E-Print Network [OSTI]

    Williams, Benjamin F; Gilbert, Eric F BellKaroline M; Guhathakurta, Puragra; Dorman, Claire; Lauer, Tod R; Seth, Anil C; Kalirai, Jason S; Rosenfield, Philip; Girardi, Leo

    2015-01-01T23:59:59.000Z

    We have analyzed new HST/ACS and HST/WFC3 imaging in F475W and F814W of two previously-unobserved fields along the M31 minor axis to confirm our previous constraints on the shape of M31's inner stellar halo. Both of these new datasets reach a depth of at least F814W$blue horizontal branch (BHB) of the field as a distinct feature of the color-magnitude diagram. We measure the density of BHB stars and the ratio of BHB to red giant branch stars in each field using identical techniques to our previous work. We find excellent agreement with our previous measurement of a power-law for the 2-D projected surface density with an index of 2.6$^{+0.3}_{-0.2}$ outside of 3 kpc, which flattens to $\\alpha <$1.2 inside of 3 kpc. Our findings confirm our previous suggestion that the field BHB stars in M31 are part of the halo population. However, the total halo profile is now known to differ from this BHB profile, which suggests that we have isolated the metal-poor component. This component ...

  1. Particle decay branching ratios for states of astrophysical importance in 19Ne

    E-Print Network [OSTI]

    D. W. Visser; J. A. Caggiano; R. Lewis; W. B. Handler; A. Parikh; P. D. Parker

    2004-02-26T23:59:59.000Z

    We have measured proton and alpha-particle branching ratios of excited states in 19Ne formed using the 19F(3He,t) reaction at a beam energy of 25 MeV. These ratios have a large impact on the astrophysical reaction rates of 15O(alpha,gamma), 18F(p,gamma) and 18F(p,alpha), which are of interest in understanding energy generation in x-ray bursts and in interpreting anticipated gamma-ray observations of novae. We detect decay protons and alpha-particles using a silicon detector array in coincidence with tritons measured in the focal plane detector of our Enge split-pole spectrograph. The silicon array consists of five strip detectors of the type used in the Louvain-Edinburgh Detector Array, subtending angles from 130 degrees to 165 degrees with approximately 14% lab efficiency. The correlation angular distributions give additional confidence in some prior spin-parity assignments that were based on gamma branchings. We measure Gamma_p/Gamma=0.387+-0.016 for the 665 keV proton resonance, which agrees well with the direct measurement of Bardayan et al.

  2. Habitability of Super-Earth Planets around Other Suns: Models including Red Giant Branch Evolution

    E-Print Network [OSTI]

    W. von Bloh; M. Cuntz; K. -P. Schroeder; C. Bounama; S. Franck

    2008-12-04T23:59:59.000Z

    The unexpected diversity of exoplanets includes a growing number of super- Earth planets, i.e., exoplanets with masses of up to several Earth masses and a similar chemical and mineralogical composition as Earth. We present a thermal evolution model for a 10 Earth mass planet orbiting a star like the Sun. Our model is based on the integrated system approach, which describes the photosynthetic biomass production taking into account a variety of climatological, biogeochemical, and geodynamical processes. This allows us to identify a so-called photosynthesis-sustaining habitable zone (pHZ) determined by the limits of biological productivity on the planetary surface. Our model considers the solar evolution during the main-sequence stage and along the Red Giant Branch as described by the most recent solar model. We obtain a large set of solutions consistent with the principal possibility of life. The highest likelihood of habitability is found for "water worlds". Only mass-rich water worlds are able to realize pHZ-type habitability beyond the stellar main-sequence on the Red Giant Branch.

  3. Oak Ridge Gaseous Diffusion Plant Biological Monitoring and Abatement Program for Mitchell Branch

    SciTech Connect (OSTI)

    Loar, J.M.; Adams, S.M.; Kszos, L.A.; Ryon, M.G.; Smith, J.G.; Southworth, G.R.; Stewart, A.J.

    1992-01-01T23:59:59.000Z

    A proposed Biological Monitoring and Abatement Program (BMAP) for the Oak Ridge Gaseous Diffusion Plant (ORGDP; currently the Oak Ridge K-25 Site) was prepared in December 1986, as required by the modified National Pollutant Discharge Elimination System (NPDES) permit that was issued on September 11, 1986. The effluent discharges to Mitchell Branch are complex, consisting of trace elements, organic chemicals, and radionuclides in addition to various conventional pollutants. Moreover, the composition of these effluent streams will be changing over time as various pollution abatement measures are implemented over the next several years. Although contaminant inputs to the stream originate primarily as point sources from existing plant operations, area sources, such as the classified burial grounds and the K-1407-C holding pond, can not be eliminated as potential sources of contaminants. The proposed BMAP consists of four tasks. These tasks include (1) ambient toxicity testing, (2) bioaccumulation studies, (3) biological indicator studies, and (4) ecological surveys of the benthic invertebrate and fish communities. BMAP will determine whether the effluent limits established for ORGDP protect the designated use of the receiving stream (Mitchell Branch) for growth and propagation of fish and aquatic life. Another objective of the program is to document the ecological effects resulting from various pollution abatement projects, such as the Central Neutralization Facility.

  4. Assessment of approximate computational methods for conical intersections and branching plane vectors in organic molecules

    SciTech Connect (OSTI)

    Nikiforov, Alexander; Gamez, Jose A.; Thiel, Walter [Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr (Germany); Huix-Rotllant, Miquel [Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 7, D-60438 Frankfurt am Main (Germany); Filatov, Michael, E-mail: mike.filatov@gmail.com [Mulliken Center for Theoretical Chemistry, Institut für Physikalische und Theoretische Chemie, Universität Bonn, Beringstr. 4, D-53115 Bonn (Germany)

    2014-09-28T23:59:59.000Z

    Quantum-chemical computational methods are benchmarked for their ability to describe conical intersections in a series of organic molecules and models of biological chromophores. Reference results for the geometries, relative energies, and branching planes of conical intersections are obtained using ab initio multireference configuration interaction with single and double excitations (MRCISD). They are compared with the results from more approximate methods, namely, the state-interaction state-averaged restricted ensemble-referenced Kohn-Sham method, spin-flip time-dependent density functional theory, and a semiempirical MRCISD approach using an orthogonalization-corrected model. It is demonstrated that these approximate methods reproduce the ab initio reference data very well, with root-mean-square deviations in the optimized geometries of the order of 0.1 Å or less and with reasonable agreement in the computed relative energies. A detailed analysis of the branching plane vectors shows that all currently applied methods yield similar nuclear displacements for escaping the strong non-adiabatic coupling region near the conical intersections. Our comparisons support the use of the tested quantum-chemical methods for modeling the photochemistry of large organic and biological systems.

  5. IS DUST FORMING ON THE RED GIANT BRANCH IN 47 Tuc?

    SciTech Connect (OSTI)

    Boyer, Martha L.; Gordon, Karl D.; Meixner, Margaret; Sewilo, Marta; Shiao, Bernie [STScI, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Van Loon, Jacco Th. [Astrophysics Group, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG (United Kingdom); McDonald, Iain [Jodrell Bank Centre for Astrophysics, Alan Turing Building, University of Manchester, M13 9PL (United Kingdom); Babler, Brian; Bracker, Steve; Meade, Marilyn [Department of Astronomy, University of Wisconsin, Madison, 475 North Charter Street, Madison, WI 53706-1582 (United States); Block, Miwa; Engelbracht, Charles; Misselt, Karl [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Hora, Joe [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS 65, Cambridge, MA 02138-1516 (United States); Indebetouw, Remy [Department of Astronomy, University of Virginia, P.O. Box 3818, Charlottesville, VA 22903-0818 (United States); Whitney, Barbara [Space Science Institute, 4750 Walnut Street, Suite 205, Boulder, CO 80301 (United States)], E-mail: mboyer@stsci.edu

    2010-03-10T23:59:59.000Z

    Using Spitzer Infrared Array Camera (IRAC) observations from the SAGE-SMC Legacy program and archived Spitzer IRAC data, we investigate dust production in 47 Tuc, a nearby massive Galactic globular cluster. A previous study detected infrared excess, indicative of circumstellar dust, in a large population of stars in 47 Tuc, spanning the entire red giant branch (RGB). We show that those results suffered from effects caused by stellar blending and imaging artifacts and that it is likely that no stars below {approx}1 mag from the tip of the RGB are producing dust. The only stars that appear to harbor dust are variable stars, which are also the coolest and most luminous stars in the cluster.

  6. Ultrafast energy transfer from rigid, branched side-chains into a conjugated, alternating copolymer

    SciTech Connect (OSTI)

    Griffin, Graham B.; Rolczynski, Brian S.; Linkin, Alexander; McGillicuddy, Ryan D.; Engel, Gregory S., E-mail: gsengel@uchicago.edu [Department of Chemistry, The James Franck Institute, Institute for Biophysical Dynamics, The University of Chicago, Chicago, Illinois 60637 (United States); Lundin, Pamela M. [Department of Chemical Engineering, Stanford University, Stauffer III, 381 North-South Mall, Stanford, California 94305 (United States) [Department of Chemical Engineering, Stanford University, Stauffer III, 381 North-South Mall, Stanford, California 94305 (United States); A. R. Smith Department of Chemistry, Appalachian State University, 417 CAP Building, 525 Rivers Street, Boone, North Carolina 28608 (United States); Bao, Zhenan [Department of Chemical Engineering, Stanford University, Stauffer III, 381 North-South Mall, Stanford, California 94305 (United States)] [Department of Chemical Engineering, Stanford University, Stauffer III, 381 North-South Mall, Stanford, California 94305 (United States)

    2014-01-21T23:59:59.000Z

    We present the synthesis and characterization of a benzodithiophene/thiophene alternating copolymer decorated with rigid, singly branched pendant side chains. We characterize exciton migration and recombination dynamics in these molecules in tetrahydrofuran solution, using a combination of static and time-resolved spectroscopies. As control experiments, we also measure electronic relaxation dynamics in isolated molecular analogues of both the side chain and polymer moieties. We employ semi-empirical and time-dependent density functional theory calculations to show that photoexcitation of the decorated copolymer using 395 nm laser pulses results in excited states primarily localized on the pendant side chains. We use ultrafast transient absorption spectroscopy to show that excitations are transferred to the polymer backbone faster than the instrumental response function, ?250 fs.

  7. Wide Binary Effects on Asymmetries in Asymptotic Giant Branch Circumstellar Envelopes

    E-Print Network [OSTI]

    Kim, Hyosun

    2012-01-01T23:59:59.000Z

    Observations of increasingly higher spatial resolution reveal the existence of asymmetries in the circumstellar envelopes of a small fraction of asymptotic giant branch (AGB) stars. Although there is no general consensus for their origin, a binary companion star may be responsible. Within this framework, we investigate the gravitational effects associated with a sufficiently wide binary system, where Roche lobe overflow is unimportant, on the outflowing envelopes of AGB stars using three dimensional hydrodynamic simulations. The effects due to individual binary components are separately studied, enabling investigation of the stellar and circumstellar characteristics in detail. The reflex motion of the AGB star alters the wind velocity distribution, thereby, determining the overall shape of the outflowing envelope. On the other hand, the interaction of the companion with the envelope produces a gravitational wake, which exhibits a vertically thinner shape. The two patterns overlap and form clumpy structures. T...

  8. Measurement of Branching Fraction and CP-Violating Asymmetry for B-> omega K0s

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-06-08T23:59:59.000Z

    The authors present a preliminary measurement of the branching fraction and CP-violating parameters S and C for the decay B{sup 0} {yields} {omega}K{sub S}{sup 0}. The data sample corresponds to 232 x 10{sup 6} B{bar B} pairs produced from e{sup +}e{sup -} annihilation at the {Upsilon}(4S) resonance. They measure {Beta}(B{sup 0} {yields} {omega}K{sup 0}) = (5.9 {+-} 1.0 {+-} 0.4) x 10{sup -6}, S = 0.50{sub -0.38}{sup +0.34} {+-} 0.02 and C = -0.56{sub -0.27}{sup +0.29} {+-} 0.03.

  9. Measurement of the B+- --> rho+- pi0 Branching Fraction and Direct CP Asymmetry

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-06-29T23:59:59.000Z

    An improved measurement of the process B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0} is presented. The data sample of 211 fb{sup -1} comprises 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric B Factory at SLAC. The yield and CP asymmetry are calculated using an extended maximum likelihood fitting method. The branching fraction and asymmetry are found to be {Beta}(B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}) = [10.0 {+-} 1.4 (Stat.) {+-} 0.9 (Syst.)] x 10{sup -6} and {Alpha}{sub CP}(B{sup {+-}} {yields} {rho}{sup {+-}}{pi}{sup 0}) = -0.01 {+-} 0.13 (Stat.) {+-} 0.02 (Syst.), superseding previous measurements. The statistical significance of the signal is calculated to be 8.7{sigma}.

  10. Measurement of the Absolute Branching Fraction of D0 to K- pi+

    SciTech Connect (OSTI)

    Aubert, B.; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Garra Tico, J.; Grauges, E.; /Barcelona U., ECM; Lopez, L.; Palano, A.; /Bari U.; Eigen, G.; Ofte, I.; Stugu, B.; Sun, L.; /Bergen U.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Button-Shafer, J.; /LBL, Berkeley

    2007-04-25T23:59:59.000Z

    The authors measure the absolute branching fraction for D{sup 0} {yields} K{sup -} {pi}{sup +} using partial reconstruction of {bar B}{sup 0} {yields} D*{sup +}X{ell}{sup -}{bar {nu}}{sub {ell}} decays, in which only the charged lepton and the pion from the decay D*{sup +} {yields} D{sup 0}{pi}{sup +} are used. Based on a data sample of 230 million B{bar B} pairs collected at the {Upsilon}(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, they obtain {Beta}(D{sup 0} {yields} K{sup -}{pi}{sup +}) = (4.007 {+-} 0.037 {+-} 0.070)%, where the first error is statistical and the second error is systematic.

  11. Grain ultraviolet extinction properties of recently discovered post asymptotic giant branch stars

    SciTech Connect (OSTI)

    Buss, R.H. Jr.; Snow, T.P. Jr.; Lamers, H.J.G.L.M. (Colorado Univ., Boulder (USA) Utrecht, Rijksuniversiteit (Netherlands))

    1989-12-01T23:59:59.000Z

    The circumstellar grains of two hot evolved postasymptotic giant branch stars, HD 89353 and HD 213985, are examined, deriving the extinction around 2175 A. An unsuccessful attempt to detect 6614 A diffuse band absorption arising from the grains implies that the carrier of this diffuse band is not the carrier of the unidentified IR features reported by other investigators nor of the 2175 A bump. It is found that the linear UV extinction of the carbon-rich star HD 89353 continues across the 2175 A region with no sign of the bump; for HD 213985 the reverse is found: a strong, wide bump in the mid-UV. A wavelength of 2300 A is derived for the HD 213985 bump, which lies longward of its unusual position in the interstellar medium. Since HD 89353 is metal-poor yet rich in hydrogen and carbon, the linear extinction arises from hydrocarbon grains of radius less than 300 A. 68 refs.

  12. Branched aliphatic alkanes with quaternary substituted carbon atoms in modern and ancient geologic samples.

    SciTech Connect (OSTI)

    Kenig, F.; Simons, D.-J. H.; Crich, D.; Cowen, J. P.; Ventura, G. T.; Rehbein-Khalily, T.; Brown, T. C.; Anderson, K. B.; Chemistry; Univ. of Illinois at Chicago; Univ. of Hawaii

    2003-01-01T23:59:59.000Z

    A pseudohomologous series of branched aliphatic alkanes with a quaternary substituted carbon atom (BAQCs, specifically 2,2-di-methylalkanes and 3,3- and 5,5-diethylalkanes) were identified in warm (65{sup o}C) deep-sea hydrothermal waters and Late Cretaceous black shales. 5,5-Diethylalkanes were also observed in modern and Holocene marine shelf sediments and in shales spanning the last 800 million years of the geological record. The carbon number distribution of BAQCs indicates a biological origin. These compounds were observed but not identified in previous studies of 2.0 billion- to 2.2 billion-year-old metasediments and were commonly misidentified in other sediment samples, indicating that BAQCs are widespread in the geological record. The source organisms of BAQCs are unknown, but their paleobiogeographic distribution suggests that they have an affinity for sulfides and might be nonphotosynthetic sulfide oxidizers.

  13. Branching fraction for the doubly-Cabibbo-suppressed decay D{sup +}{yields}K{sup +}{pi}{sup 0}

    SciTech Connect (OSTI)

    Dytman, S. A.; Love, W.; Savinov, V. [University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States); Aquines, O.; Li, Z.; Lopez, A.; Mehrabyan, S.; Mendez, H.; Ramirez, J. [University of Puerto Rico, Mayaguez, Puerto Rico 00681 (Puerto Rico); Huang, G. S.; Miller, D. H.; Pavlunin, V.; Sanghi, B.; Shipsey, I. P. J.; Xin, B. [Purdue University, West Lafayette, Indiana 47907 (United States); Adams, G. S.; Anderson, M.; Cummings, J. P.; Danko, I.; Napolitano, J. [Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)] (and others)

    2006-10-01T23:59:59.000Z

    We present a measurement of the branching fraction for the doubly-Cabibbo-suppressed decay D{sup +}{yields}K{sup +}{pi}{sup 0}, using 281 pb{sup -1} of data accumulated with the CLEO-c detector on the {psi}(3770) resonance. We find B(D{sup +}{yields}K{sup +}{pi}{sup 0})=(2.28{+-}0.36{+-}0.15{+-}0.08)x10{sup -4}, where the first uncertainty is statistical, the second is systematic, and the last error is due to the uncertainty in the reference mode branching fraction.

  14. Measurement of Branching Fractions and Mass Spectra of B to K pi pi gamma

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-07-12T23:59:59.000Z

    The authors present a measurement of the partial branching fractions and mass spectra of the exclusive radiative penguin processes B {yields} K{pi}{pi}{gamma} in the range m{sub K{pi}{pi}} < 1.8 GeV/c{sup 2}. They reconstruct four final states: K{sup +}{pi}{sup -}{pi}{sup +}{gamma}, K{sup +}{pi}{sup -}{pi}{sup 0}{gamma}, K{sub S}{sup 0}{pi}{sup -}{pi}{sup +}{gamma}, and K{sub S}{sup 0}{pi}{sup +}{pi}{sup 0}{gamma}, where K{sub S}{sup 0} {yields} {pi}{sup +}{pi}{sup -}. Using 232 million e{sup +}e{sup -} {yields} B{bar B} events recorded by the BABAR experiment at the PEP-II asymmetric-energy storage ring, they measure the branching fractions {Beta}(B{sup +} {yields} K{sup +}{pi}{sup -}{pi}{sup +}{gamma}) = (2.95 {+-} 0.13(stat.) {+-} 0.20(syst)) x 10{sup -5}, {Beta}(B{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0}{gamma}) = (4.07 {+-} 0.22(stat.) {+-} 0.31(syst.)) x 10{sup -5}, {Beta}(B{sup 0} {yields} K{sup 0}{pi}{sup +}{pi}{sup -}{gamma}) = (1.85 {+-} 0.21(stat.) {+-} 0.12(syst.)) x 10{sup -5}, and {Beta}(B{sup +} {yields} K{sup 0}{pi}{sup +}{pi}{sup 0}{gamma}) = (4.56 {+-} 0.42(stat.) {+-} 0.31(syst.)) x 10{sup -5}.

  15. Status of the measurement of K S -> ?e? branching ratio and lepton charge asymmetry with the KLOE detector

    E-Print Network [OSTI]

    D. Kami?ska on behalf of the KLOE-2 collaboration

    2015-07-03T23:59:59.000Z

    We present the current status of the analysis of about 1.7 billion K_S K_L pair events collected at DA{\\Phi}NE with the KLOE detector to determine the branching ratio of K_S -> {\\pi}e{\

  16. Interspecific Variability of Biomass Production of Young Coffea: No Influence of Branch Pruning. Experimental Evidence and Theoretical Analysis

    E-Print Network [OSTI]

    Boyer, Edmond

    Interspecific Variability of Biomass Production of Young Coffea: No Influence of Branch Pruning diversity and architectural plasticity. In this study, we investigated the biomass production and allocation treatment had no influence on biomass production and allocation for these young trees. We propose

  17. Development of a branch and price approach involving vertex cloning to solve the maximum weighted independent set problem

    E-Print Network [OSTI]

    Sachdeva, Sandeep

    2006-04-12T23:59:59.000Z

    We propose a novel branch-and-price (B&P) approach to solve the maximum weighted independent set problem (MWISP). Our approach uses clones of vertices to create edge-disjoint partitions from vertex-disjoint partitions. We solve the MWISP on sub...

  18. Molecular Theory of Bending Elasticity and Branching of Cylindrical Micelles Sylvio May, Yardena Bohbot, and Avinoam Ben-Shaul*

    E-Print Network [OSTI]

    Ben-Shaul, Avinoam

    to form intermicellar junctions (branches). The internal (free) energy of the micelles, before and after a bending deformation and junction formation, are calculated using mean field theories for the free energies of the molecules constituting these structures. The molecular free energies, which depend on the local packing

  19. Measurement of the Branching fraction ratio B ---> D K / B ---> D pi with the CDF II detector

    SciTech Connect (OSTI)

    Squillacioti, Paola; /INFN, Pisa /Siena U.

    2006-11-01T23:59:59.000Z

    In this thesis the author has described the first measurement performed at a hadron collider of the branching fraction of the Cabibbo-suppressed mode B{sup +} {yields} {bar D}{sup 0} K{sup +}. The analysis has been performed with 360 pb{sup -1} of data collected by the CDF II detector.

  20. Growth mechanisms of carbon nanotrees with branched carbon nanofibers synthesized by plasma-enhanced chemical vapour deposition

    E-Print Network [OSTI]

    Boyer, Edmond

    be interesting for future applications in nanoelectronic devices and also composite materials. hal-008807221 Growth mechanisms of carbon nanotrees with branched carbon nanofibers synthesized by plasma , Didier Pribat*, 3 1 State Key Laboratory for Advanced Metals and Materials, University of Science

  1. Data Summary Report for the Semiannual Tritium Survey for Fourmile Branch and the F- and H-Area Seeplines

    SciTech Connect (OSTI)

    Koch, J. II [Westinghouse Savannah River Company, AIKEN, SC (United States) Exploration Resources

    1996-12-16T23:59:59.000Z

    This report presents a summary of the definitive data validation and verification for the Semiannual Tritium Survey for Fourmile Branch and the F- and H-Area Seeplines. The survey was performed at the request of the WSRC ERD and conducted by WSRC/ESS. This report was prepared under the direction of EPD/EMS.

  2. Measurements of branching fractions for electromagnetic transitions involving the {chi}{sub bJ}(1P) states

    SciTech Connect (OSTI)

    Kornicer, M.; Mitchell, R. E.; Tarbert, C. M. [Indiana University, Bloomington, Indiana 47405 (United States); Besson, D. [University of Kansas, Lawrence, Kansas 66045 (United States); Pedlar, T. K. [Luther College, Decorah, Iowa 52101 (United States); Cronin-Hennessy, D.; Hietala, J.; Zweber, P. [University of Minnesota, Minneapolis, Minnesota 55455 (United States); Dobbs, S.; Metreveli, Z.; Seth, K. K.; Tomaradze, A.; Xiao, T. [Northwestern University, Evanston, Illinois 60208 (United States); Brisbane, S.; Martin, L.; Powell, A.; Spradlin, P.; Wilkinson, G. [University of Oxford, Oxford OX1 3RH (United Kingdom); Mendez, H. [University of Puerto Rico, Mayaguez, Puerto Rico 00681 (Puerto Rico); Ge, J. Y. [Purdue University, West Lafayette, Indiana 47907 (United States)

    2011-03-01T23:59:59.000Z

    Using (9.32, 5.88) million {Upsilon}(2S,3S) decays taken with the CLEO III detector, we obtain five product branching fractions for the exclusive processes {Upsilon}(2S){yields}{gamma}{chi}{sub b0,1,2}(1P){yields}{gamma}{gamma}{Upsilon}(1S) and {Upsilon}(3S){yields}{gamma}{chi}{sub b1,2}(1P){yields}{gamma}{gamma}{Upsilon}(1S). We observe the transition {chi}{sub b0}(1P){yields}{gamma}{Upsilon}(1S) for the first time. Using the known branching fractions for B[{Upsilon}(2S){yields}{gamma}{chi}{sub bJ}(1P)], we extract values for B[{chi}{sub bJ}(1P){yields}{gamma}{Upsilon}(1S)] for J=0, 1, 2. In turn, these values can be used to unfold the {Upsilon}(3S) product branching fractions to obtain values for B[{Upsilon}(3S){yields}{gamma}{chi}{sub b1,2}(1P)] for the first time individually. Comparison of these with each other and with the branching fraction B[{Upsilon}(3S){yields}{gamma}{chi}{sub b0}] previously measured by CLEO provides tests of relativistic corrections to electric dipole matrix elements.

  3. Data Summary Report for the 1997 Semiannual Tritium Survey for Fourmile Branch and the F- and H-Area Seeplines

    SciTech Connect (OSTI)

    Koch, J.W. II

    1998-01-05T23:59:59.000Z

    This report presents a summary of the definitive data validation and verification for the 1997 RFI/RI semiannual tritium survey for Fourmile Branch and the F- and H-Area Seeplines. The RFI/RI was performed under the direction of WSRC ESS/Ecology. This report was prepared under the direction EPD/EMS.

  4. Data Summary Report for the 1998 Semiannual Tritium Surveys for Fourmile Branch and the F- and H-Area Seeplines

    SciTech Connect (OSTI)

    Koch, J.

    1999-01-26T23:59:59.000Z

    This report presents a summary of the definitive data validation and verification for the 1998 semiannual tritium surveys for Fourmile Branch and the F- and H-Area Seeplines. The project was performed under the direction of WSRC EAS/Ecology. This report was prepared under the direction of EPD/EMS.

  5. A Single Transition State Serves Two Mechanisms. The Branching Ratio for CH2O-+ CH3Cl on Improved Potential Energy Surfaces

    E-Print Network [OSTI]

    Schlegel, H. Bernhard

    for this reaction has been studied by ab initio molecular dynamics (AIMD). The energies of transition states change of the potential energy surface around the transition state may vary the branching ratioA Single Transition State Serves Two Mechanisms. The Branching Ratio for CH2O·- + CH3Cl on Improved

  6. Viscosity calculation of polydisperse branching polymers near gel point Institut fr Theoretische Physik, Cologne University, D-5000 Kln 41, West Germany

    E-Print Network [OSTI]

    Boyer, Edmond

    L-535 Viscosity calculation of polydisperse branching polymers near gel point D. Sievers Institut Whitney. Abstract. 2014 The viscosity of randomly branched polymers has been calculated based that the first choice is better direct near the gel point and yields a logarithmic divergence of the viscosity

  7. Simulation of Branching Blood Flows on Parallel Computers1 Xue Yue, Feng-Nan Hwang, Robin Shandas, Xiao-Chuan Cai

    E-Print Network [OSTI]

    Cai, Xiao-Chuan

    Simulation of Branching Blood Flows on Parallel Computers1 Xue Yue, Feng-Nan Hwang, Robin Shandas nonlinearly implicit algorithm for the numerical simulation of some branching blood flow problems, which-Stokes equations that we use to model the blood flow in the left anterior descending coronary artery. Key words

  8. Applying Decay Strategies to Branch Predictors for Leakage Energy Savings Zhigang Hu y Philo Juang y Kevin Skadron z Doug Clark Margaret Martonosi y

    E-Print Network [OSTI]

    Martonosi, Margaret

    Applying Decay Strategies to Branch Predictors for Leakage Energy Savings Zhigang Hu y Philo Juang process, leakage energy starts to become a major concern, especially for large on­chip array structures to consider applying decay techniques, which can reduce leak­ age energy for caches, to the branch

  9. A Simultaneous Measurement of the Branching Fractions of Ten B to Double Charm Decays

    SciTech Connect (OSTI)

    Lae, Chung Khim

    2008-01-16T23:59:59.000Z

    This dissertation presents a simultaneous measurement of the branching fractions of ten B {yields} D{sup (*)}{bar D}{sup (*)} decays. The measurements are derived from a sample of 2.32 x 10{sup 8} B{bar B} pairs collected by the BABAR detector at the PEP-II B Factory located at Stanford Linear Accelerator Center. The branching fractions (x 10{sup -4}) are: -0.10 {+-} 0.44 {+-} 0.15 (<0.59) for B{sup 0} {yields} D{sup 0}{bar D}{sup 0}; 1.01 {+-} 1.07 {+-} 0.35 (<2.92) for B{sup 0} {yields} D*{sup 0}{bar D}{sup 0}; -1.31 {+-} 1.05 {+-} 0.41 (<0.92) for B{sup 0} {yields} D*{sup 0}{bar D}*{sup 0}; 2.81 {+-} 0.43 {+-} 0.45 for B{sup 0} {yields} D{sup +}D{sup -}; 5.72 {+-} 0.64 {+-} 0.71 for B{sup 0} {yields} D*{sup +}D{sup -}; 8.11 {+-} 0.57 {+-} 0.97 for B{sup 0} {yields} D*{sup +}D*{sup -}; 3.76 {+-} 0.57 {+-} 0.45 for B{sup -} {yields} D{sup -}D{sup 0}; 3.56 {+-} 0.52 {+-} 0.39 for B{sup -} {yields} D*{sup -}D{sup 0}; 6.30 {+-} 1.32 {+-} 0.93 for B{sup -} {yields} D{sup -}D*{sup 0}; and 8.14 {+-} 1.17 {+-} 1.11 for B{sup -} {yields} D*{sup -}D*{sup 0}. The first uncertainty is statistical while the second is systematic. The number in parentheses is the 90% upper limit using the Feldman-Cousins method with systematic uncertainties taken into account. These measurements are consistent with the Standard Model predictions using the factorization assumption.

  10. REVEALING PROBABLE UNIVERSAL FEATURES IN THE LOWER RED GIANT BRANCH LUMINOSITY FUNCTIONS OF GALACTIC GLOBULAR CLUSTERS

    SciTech Connect (OSTI)

    Kravtsov, V. V. [Instituto de AstronomIa, Universidad Catolica del Norte, Avenida Angamos 0610, Casilla 1280, Antofagasta (Chile)], E-mail: vkravtsov@ucn.cl

    2009-06-15T23:59:59.000Z

    This paper aims at demonstrating, for the first time, very probable universal peculiarities of the evolution of stars in the lower red giant branch (RGB) of Galactic globular clusters (GCs), reflected in two corresponding dips in the luminosity functions (LFs). By relying on the database of Hubble Space Telescope photometry of GCs, we analyze the lower RGB LFs of a sample of 18 GCs in a wide metallicity range, {delta}[Fe/H] {approx} 1.9 dex. We first show that in the F555W-(F439W-F555W) color-magnitude diagrams (CMDs), the lower RGB of GCs, except for the most metal-poor of them, frequently shows an apparent 'knee'. It reveals itself as a fairly abrupt change of the RGB slope. At the same luminosity level, the RGB LFs show a feature in the form of a more or less pronounced dip. We find that the magnitude difference between the RGB base and the given feature is, on average, around {delta} F555W{sup dip} {sub base}{approx} 1.4 mag. It shows a marginal variation with metallicity, if any, comparable to the error. At the same time, the magnitude difference between the dip and the RGB bump, {delta} F555W{sup bump} {sub dip}, decreases with increasing metallicity and falls within the range 0.8 {approx}< {delta} F555W{sup bump} {sub dip} {approx}< 1.7 mag. Generalized LFs (GLFs) have been obtained for three subsamples of GCs within limited metallicity ranges and with different horizontal branch (HB) morphology. They reproduce the 'knee-related' dip that is statistically significant in two of the GLFs. This feature turns out to be more pronounced in the GLFs of GCs with either the blue or red HB morphology than with the intermediate one. The same GLFs also reveal an additional probable universal dip. It shows up below the RGB bump at {delta} F555W slightly increasing from {approx}0.3 to {approx}0.5 mag with increasing metallicity. Also, the statistical significance of this 'prebump' dip increases, on average, toward higher metallicity. Except for the well known RGB bump, no other universal features corresponding to those found here were so far empirically revealed or theoretically predicted in the lower RGB of GCs.

  11. Branching fraction and charge asymmetry measurements in B{yields}J/{psi}{pi}{pi} decays

    SciTech Connect (OSTI)

    Aubert, B.; Bona, M.; Boutigny, D.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prudent, X.; Tisserand, V.; Zghiche, A. [Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France); Garra Tico, J.; Grauges, E. [Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain); Lopez, L.; Palano, A. [Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy); Eigen, G.; Ofte, I.; Stugu, B.; Sun, L. [University of Bergen, Institute of Physics, N-5007 Bergen (Norway); Abrams, G. S.; Battaglia, M.; Brown, D. N. [Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)] (and others)

    2007-08-01T23:59:59.000Z

    We study the decays B{sup 0}{yields}J/{psi}{pi}{sup +}{pi}{sup -} and B{sup +}{yields}J/{psi}{pi}{sup +}{pi}{sup 0}, including intermediate resonances, using a sample of 382x10{sup 6} BB pairs recorded by the BABAR detector at the PEP-II e{sup +}e{sup -} B factory. We measure the branching fractions B(B{sup 0}{yields}J/{psi}{rho}{sup 0})=(2.7{+-}0.3{+-}0.2)x10{sup -5} and B(B{sup +}{yields}J/{psi}{rho}{sup +})=(5.0{+-}0.7{+-}0.3)x10{sup -5}. We also set the following upper limits at the 90% confidence level: B(B{sup 0}{yields}J/{psi}{pi}{sup +}{pi}{sup -} nonresonant)<1.2x10{sup -5}, B(B{sup 0}{yields}J/{psi}f{sub 2})<4.6x10{sup -6}, and B(B{sup +}{yields}J/{psi}{pi}{sup +}{pi}{sup 0} nonresonant)<7.3x10{sup -6}. We measure the charge asymmetry in charged B decays to J/{psi}{rho} to be -0.11{+-}0.12{+-}0.08.

  12. New antineutrino energy spectra predictions from the summation of beta decay branches of the fission products

    E-Print Network [OSTI]

    M. Fallot; S. Cormon; M. Estienne; A. Algora; V. M. Bui; A. Cucoanes; M. Elnimr; L. Giot; D. Jordan; J. Martino; A. Onillon; A. Porta; G. Pronost; A. Remoto; J. L. Taín; F. Yermia; A. -A. Zakari-Issoufou

    2012-09-13T23:59:59.000Z

    In this paper, we study the impact of the inclusion of the recently measured beta decay properties of the $^{102;104;105;106;107}$Tc, $^{105}$Mo, and $^{101}$Nb nuclei in an updated calculation of the antineutrino energy spectra of the four fissible isotopes $^{235, 238}$U, and $^{239,241}$Pu. These actinides are the main contributors to the fission processes in Pressurized Water Reactors. The beta feeding probabilities of the above-mentioned Tc, Mo and Nb isotopes have been found to play a major role in the $\\gamma$ component of the decay heat of $^{239}$Pu, solving a large part of the $\\gamma$ discrepancy in the 4 to 3000\\,s range. They have been measured using the Total Absorption Technique (TAS), avoiding the Pandemonium effect. The calculations are performed using the information available nowadays in the nuclear databases, summing all the contributions of the beta decay branches of the fission products. Our results provide a new prediction of the antineutrino energy spectra of $^{235}$U, $^{239,241}$Pu and in particular of $^{238}$U for which no measurement has been published yet. We conclude that new TAS measurements are mandatory to improve the reliability of the predicted spectra.

  13. Infrared tip of the red giant branch and distances to the MAFFEI/IC 342 group

    SciTech Connect (OSTI)

    Wu, Po-Feng; Tully, R. Brent; Jacobs, Bradley A. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, HI 96822 (United States); Rizzi, Luca [W. M. Keck Observatory, 65-1120 Mamalahoa Hwy, Kamuela, HI 96743 (United States); Dolphin, Andrew E. [Raytheon, 1151 East Hermans Road, Tucson, AZ 85756 (United States); Karachentsev, Igor D. [Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnij Arkhyz, Karachai-Cherkessian Republic 369167 (Russian Federation)

    2014-07-01T23:59:59.000Z

    In this paper, we extend the use of the tip of the red giant branch (TRGB) method to near-infrared wavelengths from the previously used I-band, using the Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3). Upon calibration of a color dependency of the TRGB magnitude, the IR TRGB yields a random uncertainty of ?5% in relative distance. The IR TRGB methodology has an advantage over the previously used Advance Camera for Surveys F606W and F814W filter set for galaxies that suffer from severe extinction. Using the IR TRGB methodology, we obtain distances toward three principal galaxies in the Maffei/IC 342 complex, which are located at low Galactic latitudes. New distance estimates using the TRGB method are 3.45{sub ?0.13}{sup +0.13} Mpc for IC 342, 3.37{sub ?0.23}{sup +0.32} Mpc for Maffei 1, and 3.52{sub ?0.30}{sup +0.32} Mpc for Maffei 2. The uncertainties are dominated by uncertain extinction, especially for Maffei 1 and Maffei 2. Our IR calibration demonstrates the viability of the TRGB methodology for observations with the James Webb Space Telescope.

  14. A test for asymptotic giant branch evolution theories: Planetary Nebulae in the Large Magellanic Cloud

    E-Print Network [OSTI]

    Ventura, P; Dell'Agli, F; García-Hernández, D A; Di Criscienzo, M

    2015-01-01T23:59:59.000Z

    We used a new generation of asymptotic giant branch (AGB) stellar models that include dust formation in the stellar winds to find the links between evolutionary models and the observed properties of a homogeneous sample of Large Magellanic Cloud (LMC) planetary nebulae (PNe). Comparison between the evolutionary yields of elements such as CNO and the corresponding observed chemical abundances is a powerful tool to shed light on evolutionary processes such as hot bottom burning (HBB) and third dredge-up (TDU). We found that the occurrence of HBB is needed to interpret the nitrogen-enriched (log(N/H)+12>8) PNe. In particular, N-rich PNe with the lowest carbon content are nicely reproduced by AGB models of mass M >=6 Mo, whose surface chemistry reflects the pure effects of HBB. PNe with log(N/H)+12<7.5 correspond to ejecta of stars that have not experienced HBB, with initial mass below about 3 Mo. Some of these stars show very large carbon abundances, owing to the many TDU episodes experienced. We found from o...

  15. Dynamos in Asymptotic-Giant-Branch Stars As the Origin of Magnetic Fields Shaping Planetary Nebulale

    E-Print Network [OSTI]

    Eric G. Blackman; Adam Frank; J. Andrew Markiel; John H. Thomas; Hugh M. Van Horn

    2001-01-27T23:59:59.000Z

    Planetary nebulae are thought to be formed when a slow wind from the progenitor giant star is overtaken by a subsequent fast wind generated as the star enters its white dwarf stage$^{1}$. A shock forms near the boundary between the winds, which creates a relatively dense shell that provides the characteristic appearance of a planetary nebula. A spherically symmetric wind will produce a spherically symmetric shell, yet over half of known planetary nebulae are not spherical; rather, they are elliptical or bipolar in shape$^{2}$. While a magnetic field could launch and collimate a bipolar outflow, the origin of such a field has hitherto been unclear, as previous work suggested that a field could not be generated${^3}$. Here we show that an asymptotic-giant-branch (AGB) star can indeed generate a strong magnetic field, in a dynamo at the interface between a rapidly rotating core and the more slowly rotating envelope of the star. The field is strong enough to shape the bipolar outflows that produce the observed bipolar planetary nebulae. Magnetic braking of the stellar core during this process may also explain the puzzlingly$^{4}$ slow rotation of most white dwarf stars.

  16. Measuring the branching ratio of the rare decay pi0 --> e+ e-

    SciTech Connect (OSTI)

    Niclasen, Rune; /Colorado U.

    2006-02-01T23:59:59.000Z

    A precise branching ratio measurement of the rare decay {pi}{sup 0} {yields} e{sup +}e{sup -} has been made. The measurement was made with the rare kaon decay experiment KTeV at Fermilab where the source of {pi}{sup 0}s was K{sub L} {yields} {pi}{sup 0}{pi}{sup 0}{pi}{sup 0} decaying in flight. A total of 794 fully reconstructed K{sub L} {yields} 3{pi}{sup 0} events consistent with two of the intermediate {pi}{sup 0}s decaying into {gamma}{gamma} and one into e{sup +}e{sup -} were collected. An estimated 53.2 {+-} 11.0 of these events were expected to be background. Normalizing to the {pi}{sup 0} Dalitz decay they found Br({pi}{sup 0} {yields} e{sup +}e{sup -}, (m{sub e{sup +}e{sup -}}/m{sub {pi}{sup 0}}){sup 2} > 0.95) = (6.44 {+-} 0.25(stat) {+-} 0.22(syst)) x 10{sup -8} where internal radiation, {pi}{sup 0} {yields} e{sup +}e{sup -}({gamma}), was limited by the requirement (m{sub e{sup +}e{sup -}}/m{sub {pi}{sup 0}}){sup 2} > 0.95 which separated it from the tree level Dalitz decay, {pi}{sup 0} {yields} e{sup +}e{sup -}P{gamma}.

  17. Helium enhancements in globular cluster stars from Asymptotic Giant Branch star pollution

    E-Print Network [OSTI]

    Amanda Karakas; Yeshe Fenner; Alison Sills; Simon Campbell; John Lattanzio

    2006-05-21T23:59:59.000Z

    Using a chemical evolution model we investigate the intriguing suggestion that there are populations of stars in some globular clusters (e.g. NGC 2808, omega Centauri) with enhanced levels of helium (Y from about 0.28 to 0.40) compared to the majority of the population that presumably have a primordial helium abundance. We assume that a previous generation of massive low-metallicity Asymptotic Giant Branch (AGB) stars has polluted the cluster gas via a slow stellar wind. We use two independent sets of AGB yields computed from detailed models to follow the evolution of helium, carbon, nitrogen and oxygen in the cluster gas using a Salpeter initial mass function (IMF) and a number of top-heavy IMFs. In no case were we able to fit the observational constraints, Y > 0.30 and C+N+O approximately constant. Depending on the shape of the IMF and the yields, we either obtained Y approximately greater than 0.30 and large increases in C+N+O or Y < 0.30 and C+N+O approximately constant. These results suggest that either AGB stars alone are not responsible for the large helium enrichment or that any dredge-up from this generation of stars was less than predicted by standard models.

  18. Measurement of the Partial Branching Fraction for Inclusive Charmless Semileptonic B Decays and Extraction of |Vub|

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-07-06T23:59:59.000Z

    Charmless semileptonic decays, {bar B} {yields} X{sub u}{ell}{bar {nu}}, are studied in a sample of 232 million B{bar B} decays recorded with the BABAR detector, in events where the decay of the second B meson is fully reconstructed. Inclusive charmless decays are selected in kinematic regions where the dominant background from semileptonic B decays to charm is reduced by requirements on the hadronic mass M{sub X} and the momentum transfer q{sup 2}. The partial branching fraction for {bar B} {yields} X{sub u}{ell}{bar {nu}} decays for M{sub X} < 1.7 GeV/c{sup 2} and q{sup 2} > 8 GeV{sup 2}/c{sup 4} is measured to be {Delta}{Beta}({bar b} {yields} X{sub u}{ell}{bar {nu}}) = (0.87 {+-} 0.09{sub stat} {+-} 0.09{sub sys} {+-} 0.01{sub th}) x 10{sup -3}. The CKM matrix element|V{sub ub}| is determined by using theoretical calculations of phase space acceptances. Theoretical uncertainties in this extrapolation are reduced by using the inclusive b {yields} s{gamma} photon spectrum and moments of the b {yields} c{ell}{bar {nu}} lepton energy and hadronic invariant mass.

  19. THE FIRST FLUORINE ABUNDANCE DETERMINATIONS IN EXTRAGALACTIC ASYMPTOTIC GIANT BRANCH CARBON STARS

    SciTech Connect (OSTI)

    Abia, C.; Cristallo, S.; Dominguez, I. [Dpto. Fisica Teorica y del Cosmos, Universidad de Granada, 18071 Granada (Spain); Cunha, K.; Smith, V. V. [National Optical Astronomy Observatory, P.O. Box 26732, Tucson, AZ 85726 (United States); De Laverny, P.; Recio-Blanco, A. [University of Nice-Sophia Antipolis, CNRS (UMR 6202), Cassiopee, Observatoire de la Cote d'Azur, B.P. 4229, 06304 Nice Cedex 4 (France); Straniero, O., E-mail: cabia@ugr.es [INAF-Osservatorio di Collurania, 64100 Teramo (Italy)

    2011-08-10T23:59:59.000Z

    Fluorine ({sup 19}F) abundances (or upper limits) are derived in six extragalactic asymptotic giant branch (AGB) carbon stars from the HF(1-0) R9 line at 2.3358 {mu}m in high-resolution spectra. The stars belong to the Local Group galaxies, Large Magellanic Cloud, Small Magellanic Cloud, and Carina dwarf spheroidal, spanning more than a factor of 50 in metallicity. This is the first study to probe the behavior of F with metallicity in intrinsic extragalactic C-rich AGB stars. Fluorine could be measured only in four of the target stars, showing a wide range in F enhancements. Our F abundance measurements together with those recently derived in Galactic AGB carbon stars show a correlation with the observed carbon and s-element enhancements. The observed correlations, however, display a different dependence on the stellar metallicity with respect to theoretical predictions in low-mass, low-metallicity AGB models. We briefly discuss the possible reasons for this discrepancy. If our findings are confirmed in a larger number of metal-poor AGBs, the issue of F production in AGB stars will need to be revisited.

  20. Measurement of B s 0 ? D s ( * ) + D s ( * ) ? Branching Ratios

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T.; Álvarez González, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; Arisawa, T.; Artikov, A.; Asaadi, J.; Ashmanskas, W.; Auerbach, B.; Aurisano, A.; Azfar, F.; Badgett, W.; Bae, T.; Barbaro-Galtieri, A.; Barnes, V. E.; Barnett, B. A.; Barria, P.; Bartos, P.; Bauce, M.; Bedeschi, F.; Behari, S.; Bellettini, G.; Bellinger, J.; Benjamin, D.; Beretvas, A.; Bhatti, A.; Bisello, D.; Bizjak, I.; Bland, K. R.; Blumenfeld, B.; Bocci, A.; Bodek, A.; Bortoletto, D.; Boudreau, J.; Boveia, A.; Brigliadori, L.; Bromberg, C.; Brucken, E.; Budagov, J.; Budd, H. S.; Burkett, K.; Busetto, G.; Bussey, P.; Buzatu, A.; Calamba, A.; Calancha, C.; Camarda, S.; Campanelli, M.; Campbell, M.; Canelli, F.; Carls, B.; Carlsmith, D.; Carosi, R.; Carrillo, S.; Carron, S.; Casal, B.; Casarsa, M.; Castro, A.; Catastini, P.; Cauz, D.; Cavaliere, V.; Cavalli-Sforza, M.; Cerri, A.; Cerrito, L.; Chen, Y. C.; Chertok, M.; Chiarelli, G.; Chlachidze, G.; Chlebana, F.; Cho, K.; Chokheli, D.; Chung, W. H.; Chung, Y. S.; Ciocci, M. A.; Clark, A.; Clarke, C.; Compostella, G.; Convery, M. E.; Conway, J.; Corbo, M.; Cordelli, M.; Cox, C. A.; Cox, D. J.; Crescioli, F.; Cuevas, J.; Culbertson, R.; Dagenhart, D.; d’Ascenzo, N.; Datta, M.; de Barbaro, P.; Dell’Orso, M.; Demortier, L.; Deninno, M.; Devoto, F.; d’Errico, M.; Di Canto, A.; Di Ruzza, B.; Dittmann, J. R.; D’Onofrio, M.; Donati, S.; Dong, P.; Dorigo, M.; Dorigo, T.; Ebina, K.; Elagin, A.; Eppig, A.; Erbacher, R.; Errede, S.; Ershaidat, N.; Eusebi, R.; Farrington, S.; Feindt, M.; Fernandez, J. P.; Field, R.; Flanagan, G.; Forrest, R.; Frank, M. J.; Franklin, M.; Freeman, J. C.; Funakoshi, Y.; Furic, I.; Gallinaro, M.; Garcia, J. E.; Garfinkel, A. F.; Garosi, P.; Gerberich, H.; Gerchtein, E.; Giagu, S.; Giakoumopoulou, V.; Giannetti, P.; Gibson, K.; Ginsburg, C. M.; Giokaris, N.; Giromini, P.; Giurgiu, G.; Glagolev, V.; Glenzinski, D.; Gold, M.; Goldin, D.; Goldschmidt, N.; Golossanov, A.; Gomez, G.; Gomez-Ceballos, G.; Goncharov, M.; González, O.; Gorelov, I.; Goshaw, A. T.; Goulianos, K.; Grinstein, S.; Grosso-Pilcher, C.; Group, R. C.; Guimaraes da Costa, J.; Hahn, S. R.; Halkiadakis, E.; Hamaguchi, A.; Han, J. Y.; Happacher, F.; Hara, K.; Hare, D.; Hare, M.; Harr, R. F.; Hatakeyama, K.; Hays, C.; Heck, M.; Heinrich, J.; Herndon, M.; Hewamanage, S.; Hocker, A.; Hopkins, W.; Horn, D.; Hou, S.; Hughes, R. E.; Hurwitz, M.; Husemann, U.; Hussain, N.; Hussein, M.; Huston, J.; Introzzi, G.; Iori, M.; Ivanov, A.; James, E.; Jang, D.; Jayatilaka, B.; Jeon, E. J.; Jindariani, S.; Jones, M.; Joo, K. K.; Jun, S. Y.; Junk, T. R.; Kamon, T.; Karchin, P. E.; Kasmi, A.; Kato, Y.; Ketchum, W.; Keung, J.; Khotilovich, V.; Kilminster, B.; Kim, D. H.; Kim, H. S.; Kim, J. E.; Kim, M. J.; Kim, S. B.; Kim, S. H.; Kim, Y. K.; Kim, Y. J.; Kimura, N.; Kirby, M.; Klimenko, S.; Knoepfel, K.; Kondo, K.; Kong, D. J.; Konigsberg, J.; Kotwal, A. V.; Kreps, M.; Kroll, J.; Krop, D.; Kruse, M.; Krutelyov, V.; Kuhr, T.; Kurata, M.; Kwang, S.; Laasanen, A. T.; Lami, S.; Lammel, S.; Lancaster, M.; Lander, R. L.; Lannon, K.; Lath, A.; Latino, G.; LeCompte, T.; Lee, E.; Lee, H. S.; Lee, J. S.; Lee, S. W.; Leo, S.; Leone, S.; Lewis, J. D.; Limosani, A.; Lin, C.-J.; Lindgren, M.; Lipeles, E.; Lister, A.; Litvintsev, D. O.; Liu, C.; Liu, H.; Liu, Q.; Liu, T.; Lockwitz, S.; Loginov, A.; Lucchesi, D.; Lueck, J.; Lujan, P.; Lukens, P.; Lungu, G.; Lys, J.; Lysak, R.; Madrak, R.; Maeshima, K.; Maestro, P.; Malik, S.; Manca, G.; Manousakis-Katsikakis, A.; Margaroli, F.; Marino, C.; Martínez, M.; Mastrandrea, P.; Matera, K.; Mattson, M. E.; Mazzacane, A.; Mazzanti, P.; McFarland, K. S.; McIntyre, P.; McNulty, R.; Mehta, A.; Mehtala, P.; Mesropian, C.; Miao, T.; Mietlicki, D.; Mitra, A.; Miyake, H.; Moed, S.; Moggi, N.; Mondragon, M. N.; Moon, C. S.; Moore, R.; Morello, M. J.; Morlock, J.; Movilla Fernandez, P.; Mukherjee, A.; Muller, Th.; Murat, P.; Mussini, M.; Nachtman, J.; Nagai, Y.; Naganoma, J.; Nakano, I.; Napier, A.; Nett, J.; Neu, C.; Neubauer, M. S.; Nielsen, J.; Nodulman, L.; Noh, S. Y.; Norniella, O.; Oakes, L.; Oh, S. H.; Oh, Y. D.; Oksuzian, I.; Okusawa, T.; Orava, R.; Ortolan, L.; Pagan Griso, S.; Pagliarone, C.; Palencia, E.; Papadimitriou, V.; Paramonov, A. A.; Patrick, J.; Pauletta, G.; Paulini, M.; Paus, C.; Pellett, D. E.; Penzo, A.; Phillips, T. J.; Piacentino, G.; Pianori, E.; Pilot, J.; Pitts, K.; Plager, C.; Pondrom, L.; Poprocki, S.; Potamianos, K.; Prokoshin, F.; Pranko, A.; Ptohos, F.; Punzi, G.; Rahaman, A.; Ramakrishnan, V.; Ranjan, N.; Redondo, I.; Renton, P.; Rescigno, M.; Riddick, T.; Rimondi, F.; Ristori, L.; Robson, A.; Rodrigo, T.; Rodriguez, T.; Rogers, E.; Rolli, S.; Roser, R.; Ruffini, F.; Ruiz, A.; Russ, J.; Rusu, V.; Safonov, A.; Sakumoto, W. K.

    2012-05-01T23:59:59.000Z

    The decays B0s?D(*)+sD(*)?s are reconstructed in a data sample corresponding to an integrated luminosity of 6.8 fb?¹ collected by the CDF II detector at the Tevatron pp¯ collider. All decay modes are observed with a significance of more than 10?, and we measure the B?s production rate times B?s?D(*)+sD(*)?s branching ratios relative to the normalization mode B??D?sD?to be 0.183±0.021±0.017 for B?s?D?sD?s, 0.424±0.046±0.035 for B0s?D*±sD?s, 0.654±0.072±0.065 for B0s?D*+sD*s-, and 1.261±0.095±0.112 for the inclusive decay B0s?D(*)+sD(*)-s , where the uncertainties are statistical and systematic. These results are the most precise single measurements to date and provide important constraints for indirect searches for nonstandard model physics in B0s mixing.

  1. Precision measurements of branching fractions for $ ?'\\to?^0 J?$ and $?J?$

    E-Print Network [OSTI]

    M. Ablikim; M. N. Achasov; O. Albayrak; D. J. Ambrose; F. F. An; Q. An; J. Z. Bai; Y. Ban; J. Becker; J. V. Bennett; M. Bertani; J. M. Bian; E. Boger O. Bondarenko; I. Boyko; R. A. Briere; V. Bytev; X. Cai; O. Cakir; A. Calcaterra; G. F. Cao; S. A. CetinB; J. F. Chang; G. Chelkov G. Chen; H. S. Chen; J. C. Chen; M. L. Chen; S. J. Chen; X. Chen; Y. B. Chen; H. P. Cheng; Y. P. Chu; F. Coccetti; D. Cronin-Hennessy; H. L. Dai; J. P. Dai; D. Dedovich; Z. Y. Deng; A. Denig; I. Denysenko M. Destefanis; W. M. Ding; Y. Ding; L. Y. Dong; M. Y. Dong; S. X. Du; J. Fang; S. S. Fang; L. Fava F. Feldbauer; C. Q. Feng; R. B. Ferroli; C. D. Fu; J. L. Fu; Y. Gao; C. Geng; K. Goetzen; W. X. Gong; W. Gradl; M. Greco; M. H. Gu; Y. T. Gu; Y. H. Guan; A. Q. Guo; L. B. Guo; Y. P. Guo; Y. L. Han; F. A. Harris; K. L. He; M. He; Z. Y. He; T. Held; Y. K. Heng; Z. L. Hou; H. M. Hu; J. F. Hu; T. Hu; G. M. Huang; G. S. Huang; J. S. Huang; X. T. Huang; Y. P. Huang; T. Hussain; C. S. Ji; Q. Ji; Q. P. Ji; X. B. Ji; X. L. Ji; L. L. Jiang; X. S. Jiang; J. B. Jiao; Z. Jiao; D. P. Jin; S. Jin; F. F. Jing; N. Kalantar-Nayestanaki; M. Kavatsyuk; M. Kornicer; W. Kuehn; W. Lai; J. S. Lange; C. H. Li; Cheng Li; Cui Li; D. M. Li; F. Li; G. Li; H. B. Li; J. C. Li; K. Li; Lei Li; Q. J. Li; S. L. Li; W. D. Li; W. G. Li; X. L. Li; X. N. Li; X. Q. Li; X. R. Li; Z. B. Li; H. Liang; Y. F. Liang; Y. T. Liang; G. R. Liao; X. T. Liao; B. J. Liu; C. L. Liu; C. X. Liu; C. Y. Liu; F. H. Liu; Fang Liu; Feng Liu; H. Liu; H. H. Liu; H. M. Liu; H. W. Liu; J. P. Liu; K. Y. Liu; Kai Liu; P. L. Liu; Q. Liu; S. B. Liu; X. Liu; Y. B. Liu; Z. A. Liu; Zhiqiang Liu; Zhiqing Liu; H. Loehner; G. R. Lu; H. J. Lu; J. G. Lu; Q. W. Lu; X. R. Lu; Y. P. Lu; C. L. Luo; M. X. Luo; T. Luo; X. L. Luo; M. Lv; C. L. Ma; F. C. Ma; H. L. Ma; Q. M. Ma; S. Ma; T. Ma; X. Y. Ma; Y. Ma; F. E. Maas; M. MaggioraA; Q. A. Malik; Y. J. Mao; Z. P. Mao; J. G. Messchendorp; J. Min; T. J. Min; R. E. Mitchell; X. H. Mo; C. Morales Morales; C. Motzko; N. Yu. Muchnoi; H. Muramatsu; Y. Nefedov; C. Nicholson; I. B. Nikolaev; Z. Ning; S. L. Olsen; Q. Ouyang; S. PacettiB; J. W. Park; M. Pelizaeus; H. P. Peng; K. Peters; J. L. Ping; R. G. Ping; R. Poling; E. Prencipe; M. Qi; S. Qian; C. F. Qiao; X. S. Qin; Y. Qin; Z. H. Qin; J. F. Qiu; K. H. Rashid; G. Rong; X. D. Ruan; A. Sarantsev; B. D. Schaefer; J. Schulze; M. Shao; C. P. Shen; X. Y. Shen; H. Y. Sheng; M. R. Shepherd; X. Y. Song; S. SpataroA B. Spruck; D. H. Sun; G. X. Sun; J. F. Sun; S. S. Sun; Y. J. Sun; Y. Z. Sun; Z. J. Sun; Z. T. Sun; C. J. Tang; X. Tang; I. TapanC; E. H. Thorndike; D. Toth; M. Ullrich; G. S. Varner; B. Wang; B. Q. Wang; D. Wang; D. Y. Wang; K. Wang; L. L. Wang; L. S. Wang; M. Wang; P. Wang; P. L. Wang; Q. Wang; Q. J. Wang; S. G. Wang; X. L. Wang; Y. D. Wang; Y. F. Wang; Y. Q. Wang; Z. Wang; Z. G. Wang; Z. Y. Wang; D. H. Wei; J. B. Wei; P. Weidenkaff; Q. G. Wen; S. P. Wen; M. Werner; U. Wiedner; L. H. Wu; N. Wu; S. X. Wu; W. Wu; Z. Wu; L. G. Xia; Z. J. Xiao; Y. G. Xie; Q. L. Xiu; G. F. Xu; G. M. Xu; H. Xu; Q. J. Xu; X. P. Xu; Z. R. Xu; F. Xue; Z. Xue; L. Yan; W. B. Yan; Y. H. Yan; H. X. Yang; Y. Yang; Y. X. Yang; H. Ye; M. Ye; M. H. Ye; B. X. Yu; C. X. Yu; H. W. Yu; J. S. Yu; S. P. Yu; C. Z. Yuan; Y. Yuan; A. A. Zafar; A. Zallo; Y. Zeng; B. X. Zhang; B. Y. Zhang; C. Zhang; C. C. Zhang; D. H. Zhang; H. H. Zhang; H. Y. Zhang; J. Q. Zhang; J. W. Zhang; J. Y. Zhang; J. Z. Zhang; S. H. Zhang; X. J. Zhang; X. Y. Zhang; Y. Zhang; Y. H. Zhang; Y. S. Zhang; Z. P. Zhang; Z. Y. Zhang; G. Zhao; H. S. Zhao; J. W. Zhao; K. X. Zhao; Lei Zhao; Ling Zhao; M. G. Zhao; Q. Zhao; Q. Z. Zhao; S. J. Zhao; T. C. Zhao; X. H. Zhao; Y. B. Zhao; Z. G. Zhao; A. Zhemchugov B. Zheng; J. P. Zheng; Y. H. Zheng; B. Zhong; J. Zhong; Z. Zhong; L. Zhou; X. K. Zhou; X. R. Zhou; C. Zhu; K. Zhu; K. J. Zhu; S. H. Zhu; X. L. Zhu; Y. C. Zhu; Y. M. Zhu; Y. S. Zhu; Z. A. Zhu; J. Zhuang; B. S. Zou; J. H. Zou

    2012-10-13T23:59:59.000Z

    We present a precision study of the $\\psip\\to\\pi^0 J/\\psi$ and $\\eta J/\\psi$ decay modes. The measurements are obtained using $106\\times10^6$ $\\psi'$ events accumulated with the BESIII detector at the BEPCII $\\ee$ collider operating at a center-of-mass energy corresponding to the $\\psip$ mass. We obtain $\\mathcal{B}(\\psip\\to\\pi^0 J/\\psi)=(1.26\\pm0.02{\\rm (stat.)}\\pm0.03{\\rm (syst.)})\\times 10^{-3}$ and $\\mathcal{B}(\\psip\\to\\eta J/\\psi)=(33.75\\pm0.17{\\rm (stat.)}\\pm0.86{\\rm (syst.)})\\times 10^{-3}$. The branching fraction ratio $R=\\frac{\\mathcal{B}(\\psip\\to\\pi^0 J/\\psi)}{\\mathcal{B}(\\psip\\to\\eta J/\\psi)}$ is determined to be $(3.74\\pm0.06 {\\rm(stat.)}\\pm0.04 {\\rm(syst.)})\\times 10^{-2}$. The precision of these measurements of $\\mathcal{B}(\\psip\\to\\pi^{0} J/\\psi)$ and $R$ represent a significant improvement over previously published values.

  2. Determination of the 242Pu Branching Ratio via Alpha-Gamma Coincidence

    SciTech Connect (OSTI)

    Wang, T F

    2012-05-24T23:59:59.000Z

    When the burn-up is high, the {sup 242}Pu isotopic content becomes more important. The traditional correlation method will fail. The {sup 242}Pu isotopic content in the sample plays an essential role if the neutron coincidence method is used to quantify the total amount of plutonium. In one of the earlier measurements we had a chance to measure an isotopic pure (> 99.95 %) {sup 242}Pu thick sample and realized that the difference in the branching ratio (BR) value among current nuclear data3) for the two important gamma-rays at 103.5-keV and 158.8-keV. In this study, the thick sample was counted on a 15% ORTEC safeguards type HPGe to further improve BR determination of the 159-keV gamma-ray. Furthermore, we have made a thin {sup 242}Pu sample from the thick sample and performed alpha-gamma coincidence measurements. Our preliminary gamma-ray BR results are 4.37(6) E-4, 2.79(8) E-5, and 2.25(8) E-6 for 44.9-keV, 103.5-keV, and 158.9-keV, respectively.

  3. Population Effects on the Metallicity Distribution Function Derived From the Red Giant Branch

    E-Print Network [OSTI]

    Ordoñez, Antonio J

    2015-01-01T23:59:59.000Z

    We have tested the reliability of the red giant branch (RGB) as a metallicity indicator accounting for observational errors as well as the complexity of star formation histories (SFHs) and chemical evolution histories observed in various stellar systems. We generate model color-magnitude diagrams (CMDs) produced with a variety of evolutionary histories and compare the resultant metallicity estimates from the colors and magnitudes of RGB stars to the true input metallicities. We include realistic models for photometric errors and completeness in our synthetic CMDs. As expected, for simple simple stellar populations dominated by old stars, the RGB provides a very accurate estimate of the modular metallicity value for a population. An error in the age of a system targeted for this type of study may produce metallicity errors of a few tenths of a dex. The size of this metallicity error depends linearly on the age error, and we find this dependence to be stronger with more precise photometry. If the population has...

  4. The Hottest Horizontal-Branch Stars in omega Centauri - Late Hot Flasher vs. Helium Enrichment

    E-Print Network [OSTI]

    S. Moehler; S. Dreizler; T. Lanz; G. Bono; A. V. Sweigart; A. Calamida; M. Monelli; M. Nonino

    2007-09-18T23:59:59.000Z

    UV observations of some massive globular clusters uncovered a significant population of very hot stars below the hot end of the horizontal branch (HB), the so-called blue hook stars. This feature might be explained either as results of the late hot flasher scenario where stars experience the helium flash while on the white dwarf cooling curve or by the progeny of the helium-enriched sub-population recently postulated to exist in some clusters. Moderately high resolution spectra of stars at the hot end of the blue HB in omega Cen were analysed for atmospheric parameters and abundances using LTE and Non-LTE model atmospheres. In the temperature range 30,000K to 50,000K we find that 35% of our stars are helium-poor (log(n_He/n_H) -0.4). We also find carbon enrichment in step with helium enrichment, with a maximum carbon enrichment of 3% by mass. At least 14% of the hottest HB stars in omega Cen show helium abundances well above the highest predictions from the helium enrichment scenario (Y = 0.42 corresponding to log(n_He/n_H) ~ -0.74). In addition, the most helium-rich stars show strong carbon enrichment as predicted by the late hot flasher scenario. We conclude that the helium-rich HB stars in omega Cen cannot be explained solely by the helium-enrichment scenario invoked to explain the blue main sequence. (Abridged)

  5. K{sub l3{gamma}}{sup +} decays revisited: Branching ratios and T-ODD momenta correlations

    SciTech Connect (OSTI)

    Khriplovich, I. B., E-mail: khriplovich@inp.nsk.su; Rudenko, A. S., E-mail: a.s.rudenko@inp.nsk.su [Russian Academy of Sciences, Budker Institute of Nuclear Physics, Siberian Division (Russian Federation)

    2011-08-15T23:59:59.000Z

    We calculate the branching ratios of the K{sup +} {yields} {pi}{sup 0}l{sup +}{nu}{sub l{gamma}} (l = e, Micro-Sign ) decays, and the T-odd triple momenta correlations {xi} = q {center_dot} [p{sub l} Multiplication-Sign p{sub {pi}}]/M{sub K}{sup 3}, due to the electromagnetic final-state interaction, in these processes. The contributions on the order of {omega}{sup -1} and {omega}{sup 0} to the corresponding amplitudes are treated exactly. For the branching ratios, the corrections on the order of {omega} are estimated and demonstrated to be small. We compare the results with those of other authors. In some cases our results differ considerably from the previous ones.

  6. Measurement of the B-bar 0 to D^* l ^- nu-bar Branching Fraction with a Partial Reconstruction Technique

    SciTech Connect (OSTI)

    Sonnek, Peter; /Mississippi U.

    2009-12-17T23:59:59.000Z

    Presented is a precise measurement of the {bar B}{sup 0} {yields} D*{sup +}{ell}{sup -}{bar {nu}}{sub {ell}} branching fraction using 81.47 fb{sup -1} of data collected with the BABAR detector at the PEP-II e{sup +}e{sup -} storage ring at the Stanford Linear Accelerator Center. The measurement was performed by partially reconstructing the D*{sup +} meson from {bar B}{sup 0} {yields} D*{sup +}{ell}{sup -}{bar {nu}}{sub {ell}} decays using only the soft pion of the D*{sup +} {yields} D{sup 0}{pi}{sup +} decay to reconstruct its four vector. The branching fraction was measured to be {Beta}({bar B}{sup 0} {yields} D*{sup +}{ell}{sup -}{bar {nu}}{sub {ell}}) = (4.91 {+-} 0.01{sub stat} {+-} 0.15{sub syst})%.

  7. Operational restoration of the Pen Branch bottomland hardwood and swamp wetlands - the research setting

    SciTech Connect (OSTI)

    Nelson, E.A.

    2000-01-05T23:59:59.000Z

    The Savannah River Swamp is a 3020 Ha forested wetland on the floodplain of the Savannah River and is located on the Department of Energy's Savannah River Site (SRS) near Aiken, SC. Historically the swamp consisted of approximately 50 percent bald cypress-water tupelo stands, 40 percent mixed bottomland hardwood stands, and 10 percent shrub, marsh, and open water. Creek corridors were typical of Southeastern bottomland hardwood forests. The hydrology was controlled by flooding of the Savannah River and by flow from four creeks that drain into the swamp prior to flow into the Savannah River. Upstream dams have caused some alteration of the water levels and timing of flooding within the floodplain. Major impacts to the swamp hydrology occurred with the completion of the production reactors and one coal-fired powerhouse at the SRS in the early 1950's. Water was pumped from the Savannah River, through secondary heat exchangers of the reactors, and discharged into three of the tributary streams that flow into the swamp. Flow in one of the tributaries, Pen Branch, was typically 0.3 m3 s-1 (10-20) cfs prior to reactor pumping and 11.0 m3 s-1 (400 cfs) during pumping. This continued from 1954 to 1988 at various levels. The sustained increases in water volume resulted in overflow of the original stream banks and the creation of additional floodplains. Accompanying this was considerable erosion of the original stream corridor and deposition of a deep silt layer on the newly formed delta. Heated water was discharged directly into Pen Branch and water temperature in the stream often exceeded 65 degrees C. The nearly continuous flooding of the swamp, the thermal load of the water, and the heavy silting resulted in complete mortality of the original vegetation in large areas of the floodplain. In the years since pumping was reduced, early succession has begun in some affected areas. Most of this has been herbs, grasses, and shrubs. Areas that have seedlings are generally willow thickets that support a lower diversity of wildlife. No volunteer seedlings of heavy-seeded hardwoods or cypress have been found in the corridor areas. Research was conducted to determine methods to reintroduce tree species characteristic of more mature forested wetlands. Three restoration strategies were formulated to deal with the differing conditions of the Upper Corridor, the Lower Corridor, and the Delta regions of the impacted area. Site preparation and planting of each area with mixtures of tree species were carried out to speed the restoration of the ecosystem. Species composition and selection were altered based on the current and expected hydrological regimes that the reforestation areas will be experiencing. Because of the operational design of the restoration project, a research program naturally followed to document the success. Many of those efforts are detailed here.

  8. 1HERSA1 S001 we come to you 1300 301 275 visit a branch stgeorge.com.au/save

    E-Print Network [OSTI]

    Peters, Richard

    1HERSA1 S001 we come to you 1300 301 275 visit a branch stgeorge.com.au/save Conditions apply.George Bank Limited ABN 92 055 513 070 AFS Licence No. 240997. SGBSHL0058/F1/R Want to save more on your home-HERALD We saved Meg $4806* on her home loan over 12 months. Challenge the Home Lender of the Year today

  9. Do Coupled Climate Models Correctly SImulate the Upward Branch of the Deept Ocean Global Conveyor?

    SciTech Connect (OSTI)

    Sarmiento, Jorge L; Downes, Stephanie; Bianchi, Daniele

    2013-01-17T23:59:59.000Z

    The large-scale meridional overturning circulation (MOC) connects the deep ocean, a major reservoir of carbon, to the other components of the climate system and must therefore be accurately represented in Earth System Models. Our project aims to address the specific question of the pathways and mechanisms controlling the upwelling branch of the MOC, a subject of significant disagreement between models and observational syntheses, and among general circulation models. Observations of these pathways are limited, particularly in regions of complex hydrography such as the Southern Ocean. As such, we rely on models to examine theories of the overturning circulation, both physically and biogeochemically. This grant focused on a particular aspect of the meridional overturning circulation (MOC) where there is currently significant disagreement between models and observationally based analyses of the MOC, and amongst general circulation models. In particular, the research focused on addressing the following questions: 1. Where does the deep water that sinks in the polar regions rise to the surface? 2. What processes are responsible for this rise? 3. Do state-of-the-art coupled GCMs capture these processes? Our research had three key components: observational synthesis, model development and model analysis. In this final report we outline the key results from these areas of research for the 2007 to 2012 grant period. The research described here was carried out primarily by graduate student, Daniele Bianchi (now a Postdoc at McGill University, Canada), and Postdoc Stephanie Downes (now a Research Fellow at The Australian national University, Australia). Additional support was provided for programmers Jennifer Simeon as well as Rick Slater.

  10. Measurement of the branching fraction Bs->Ds(*)Ds(*) using the D0 detector at Fermilab

    SciTech Connect (OSTI)

    Walder, James William; /Lancaster U.

    2009-02-01T23:59:59.000Z

    This thesis describes a measurement of the branching fraction Br(B{sup 0}{sub s} {yields} D{sup (*)}{sub s} D{sup (*)}{sub s}) made using a data sample collected from proton-antiproton collisions at a centre-of-mass energy of 1.96 TeV, corresponding to approximately 1.3 fb{sup -1} of integrated luminosity collected in 2002--2006 by the D0 detector at the Fermilab Tevatron Collider. One D{sup (*)}{sub s} meson was partially reconstructed in the decay D{sub s} {yields} {phi}{mu}{nu}, and the other D{sup (*)}{sub s} meson was identified using the decay D{sub s} {yields} {phi}{pi} where no attempt was made to distinguish D{sub s} and D{sup *}{sub s} states. The resulting measurement is Br(B{sup 0}{sub s} {yields} D{sup (*)}{sub s} D{sup (*)}{sub s}) = 0.039{sup +0.019}{sub -0.017}(stat){sup +0.016}{sub -0.015}(syst). This was subsequently used to estimate the width difference {Delta}{Gamma}{sup CP}{sub s} in the B{sup 0}{sub s}-{anti B}{sup 0}{sub s} system: {Delta}{Gamma}{sup CP}{sub s}/{Gamma}{sub s} = 0.079{sup +0.038}{sub -0.035}(stat){sup +0.031}{sub 0.030}(syst), and is currently one of the most precise estimates of this quantity and consistent with the Standard Model.

  11. Modeling the Effect of Sedimentation on Cesium Transport in Fourmile Branch

    SciTech Connect (OSTI)

    Chen, K.F.

    2001-02-22T23:59:59.000Z

    The major mechanisms of radioactive material transport and fate in surface water are (1) sources, (2) dilution, advection and dispersion of radionuclides by flow and surface waves, (3) radionuclide decay, and (4) interaction between sediment and radionuclides. STREAM II, an aqueous transport module of the Savannah River Site emergency response WIND system, accounts for the source term, and the effects of dilution, advection and dispersion. Although the model has the capability to account for nuclear decay, due to the short time interval of interest for emergency response, the effect of nuclear decay is very small and so it is not employed. The interactions between the sediment and radionuclides are controlled by the flow conditions and physical and chemical characteristics of the radionuclides and the sediment constituents. The STREAM II version used in emergency response does not model the effects of sediment deposition/resuspension to minimize computing time. This study estimates the effects of sediment deposition/resuspension on radionuclide aqueous transport. For radionuclides that adsorb onto suspended sediment, the omission of deposition/resuspension effects overestimates the downstream radionuclide peak concentration and is therefore conservative. For the case of cesium transport in the Fourmile Branch, the calculated reduction in peak concentration as the cesium is transported downstream is greater with sediment deposition modeled than without. For example, including the effects of sediment deposition/resuspension in the STREAM II calculation results in a 72 percent reduction in the downstream (5075 meters downstream from H-Area) peak cesium concentration. It is important to note that the high partition coefficient appropriate for cesium enhances the importance of sediment deposition/resuspension; the reduction in the calculated peak concentration would be less for radioisotopes with lower partition coefficients.

  12. Electron-capture supernovae of super-asymptotic giant branch stars and the Crab supernova 1054

    SciTech Connect (OSTI)

    Nomoto, Ken'ichi [Kavli Institute for Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583 (Japan); Tominaga, Nozomu [Department of Physics, Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Kobe, Hyogo 658-8501, Japan and Kavli Institute for Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583 (Japan); Blinnikov, Sergei I. [Institute for Theoretical and Experimental Physics (ITEP), Moscow 117218, Russia and Kavli Institute for Physics and Mathematics of the Universe (WPI), The University of Tokyo, Kashiwa, Chiba 277-8583 (Japan)

    2014-05-02T23:59:59.000Z

    An electron-capture supernova (ECSN) is a core-collapse supernova explosion of a super-asymptotic giant branch (SAGB) star with a main-sequence mass M{sub Ms} ? 7 - 9.5M{sub ?}. The explosion takes place in accordance with core bounce and subsequent neutrino heating and is a unique example successfully produced by first-principle simulations. This allows us to derive a first self-consistent multicolor light curves of a core-collapse supernova. Adopting the explosion properties derived by the first-principle simulation, i.e., the low explosion energy of 1.5 × 10{sup 50} erg and the small {sup 56}Ni mass of 2.5 × 10{sup ?3} M{sub ?}, we perform a multigroup radiation hydrodynamics calculation of ECSNe and present multicolor light curves of ECSNe of SAGB stars with various envelope mass and hydrogen abundance. We demonstrate that a shock breakout has peak luminosity of L ? 2 × 10{sup 44} erg s{sup ?1} and can evaporate circumstellar dust up to R ? 10{sup 17} cm for a case of carbon dust, that plateau luminosity and plateau duration of ECSNe are L ? 10{sup 42} erg s{sup ?1} and {sup t} ? 60 - 100 days, respectively, and that a plateau is followed by a tail with a luminosity drop by ? 4 mag. The ECSN shows a bright and short plateau that is as bright as typical Type II plateau supernovae, and a faint tail that might be influenced by spin-down luminosity of a newborn pulsar. Furthermore, the theoretical models are compared with ECSN candidates: SN 1054 and SN 2008S. We find that SN 1054 shares the characteristics of the ECSNe. For SN 2008S, we find that its faint plateau requires a ECSN model with a significantly low explosion energy of E ? 10{sup 48} erg.

  13. Towards engineered branch placement: Unreal™ match between vapour-liquid-solid glancing angle deposition nanowire growth and simulation

    SciTech Connect (OSTI)

    Taschuk, M. T.; Tucker, R. T.; LaForge, J. M.; Beaudry, A. L. [Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6H 2V4 (Canada); Kupsta, M. R. [NRC National Institute for Nanotechnology, Edmonton, Alberta T6G 2M9 (Canada); Brett, M. J. [Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta T6H 2V4 (Canada); NRC National Institute for Nanotechnology, Edmonton, Alberta T6G 2M9 (Canada)

    2013-12-28T23:59:59.000Z

    The vapour-liquid-solid glancing angle deposition (VLS-GLAD) process is capable of producing complex nanotree structures with control over azimuthal branch orientation and height. We have developed a thin film growth simulation including ballistic deposition, simplified surface diffusion, and droplet-mediated cubic crystal growth for the VLS-GLAD process using the Unreal{sup TM} Development Kit. The use of a commercial game engine has provided an interactive environment while allowing a custom physics implementation. Our simulation's output is verified against experimental data, including a volumetric film reconstruction produced using focused ion beam and scanning-electron microscopy (SEM), crystallographic texture, and morphological characteristics such as branch orientation. We achieve excellent morphological and texture agreement with experimental data, as well as qualitative agreement with SEM imagery. The simplified physics in our model reproduces the experimental films, indicating that the dominant role flux geometry plays in the VLS-GLAD competitive growth process responsible for azimuthally oriented branches and biaxial crystal texture evolution. The simulation's successful reproduction of experimental data indicates that it should have predictive power in designing novel VLS-GLAD structures.

  14. Measurement of the B0 to D* D_s*+ and D_s+ to phi pi+ Branching Fractions

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges-Pous, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-06-22T23:59:59.000Z

    The authors present measurements of the branching fractions {Beta}(B{sup 0} {yields} D*{sup -}D*{sub s}{sup +}) and {Beta}(D{sub s}{sup +} {yields} {phi}{pi}{sup +}), based on 123 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected by the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} B factory. A partial reconstruction technique is used to measure {Beta}(B{sup 0} {yields} D*{sup -}D*{sub s}{sup +}) and the decay chain is fully reconstructed to measure the branching fraction product {Beta}(B{sup 0} {yields} D*{sup -} D*{sub s}{sup +}) x {Beta}(D{sub s}{sup +} {yields} {phi}{pi}{sup +}). Comparing these two measurements provides a model-independent determination of the D{sub s}{sup +} {yields} {phi}{pi}{sup +} branching fraction. They obtain {Beta}(B{sup 0} {yields} D*{sup -}D*{sub s}{sup +}) = (1.88 {+-} 0.09 {+-} 0.17)% and {Beta}(D{sub s}{sup +} {yields} {phi}{pi}{sup +}) = (4.81 {+-} 0.52 {+-} 0.38)%, where the first uncertainties are statistical and the second systematic.

  15. Analysis of volatile organic compounds (VOCs) in A/M Area Crouch Branch (Cretaceous) Aquifer characterization samples: 1993

    SciTech Connect (OSTI)

    Looney, B.B.; Haselow, J.S.; Keenan, M.A.; Van Pelt, R.; Eddy-Dilek, C.A.; Rossabi, J.; Simmons, J.L.

    1993-12-06T23:59:59.000Z

    Samples were collected during the A/M Area Crouch Branch (Cretaceous) Aquifer Characterization (Phase I) Program. The samples were analyzed for chlorinated VOCs by the Savannah River Technology Center (SRTC) and MicroSeeps Ltd. All samples were sealed in the field immediately upon retrieval of the core and subsampling. A total of 113 samples locations were selected for analysis. The Environmental Sciences Section (ESS) of SRTC analyzed all locations in duplicate (226 samples). MicroSeeps Ltd was selected as the quality assurance (QA) check laboratory. MicroSeeps Ltd analyzed 40 locations with 4 duplicates (44 samples). The samples were collected from seven boreholes in A/M Area in the interval from 200 feet deep to the total depth of the boring (360 feet deep nominal); samples were collected every 10 feet within this interval. The sampling zone corresponds approximately to the Crouch Branch Aquifer in A/M Area. The overall A/M Area Crouch Branch Aquifer characterization objectives, a brief description of A/M Area geology and hydrology, and the sample locations, field notes, driller lithologic logs, and required procedural documentation are presented in WSRC (1993).

  16. Measurements of $\\Lambda^+_c$ Branching Fractions of Cabibbo-Suppressed Decay Modes involving $\\Lambda$ and $\\Sigma^{0}$

    E-Print Network [OSTI]

    Aubert, B; Abrams, G S; Adye, T; Ahmed, M; Ahmed, S; Alam, M S; Albert, J; Aleksan, Roy; Allen, M T; Allison, J; Allmendinger, T; Altenburg, D; Andreassen, R; Andreotti, M; Angelini, C; Anulli, F; Arnaud, N; Aston, D; Azzolini, V; Baak, M; Back, J J; Baldini-Ferroli, R; Band, H R; Banerjee, S; Barate, R; Bard, D J; Barlow, N R; Barlow, R J; Barrett, M; Bartoldus, R; Batignani, G; Battaglia, M; Bauer, J M; Beck, T W; Behera, P K; Bellini, F; Benayoun, M; Benelli, G; Berger, N; Bernard, D; Berryhill, J W; Best, D; Bettarini, S; Bettoni, D; Bevan, A J; Bhimji, W; Bhuyan, B; Bianchi, F; Biasini, M; Biesiada, J; Blanc, F; Blaylock, G; Blinov, A E; Blinov, V E; Bloom, P C; Blount, N L; Bomben, M; Bondioli, M; Bonneaud, G R; Bosisio, L; Boutigny, D; Bowerman, D A; Boyarski, A M; Boyd, J T; Bozzi, C; Brandenburg, G; Brandt, T; Brau, J E; Breon, A B; Brose, J; Brown, C L; Brown, C M; Brown, D N; Bruinsma, M; Brunet, S; Bucci, F; Buchanan, C; Buchmüller, O L; Bugg, W; Bukin, A D; Bula, R; Bulten, H; Burchat, P R; Burke, J P; Button-Shafer, J; Buzzo, A; Bóna, M; Cahn, R N; Calabrese, R; Calcaterra, A; Calderini, G; Campagnari, C; Capra, R; Carpinelli, M; Cartaro, C; Cavallo, N; Cavoto, G; Cenci, R; Chai, X; Chaisanguanthum, K S; Chao, M; Charles, E; Charles, M J; Chauveau, J; Chavez, C A; Chen, A; Chen, C; Chen, E; Chen, J C; Chen, S; Chen, X; Cheng, B; Cheng, C H; Chia, Y M; Cibinetto, G; Clark, P J; Claus, R; Cochran, J; Coleman, J P; Contri, R; Convery, M R; Cossutti, F; Cottingham, W N; Couderc, F; Covarelli, R; Cowan, G; Cowan, R; Crawley, H B; Cremaldi, L; Cristinziani, M; Cunha, A; Curry, S; Côté, D; D'Orazio, A; Dahmes, B; Dallapiccola, C; Danielson, N; Dasu, S; Datta, M; Dauncey, P D; David, P; Davier, M; Davis, C L; Day, C T; De Groot, N; De Nardo, Gallieno; De Sangro, R; Del Buono, L; Del Re, D; Della Ricca, G; Di Lodovico, F; Di Marco, E; Dickopp, M; Dingfelder, J C; Dittongo, S; Dong, D; Dong, L; Dorfan, J; Druzhinin, V P; Dubitzky, R S; Dubois-Felsmann, G P; Dujmic, D; Dunwoodie, W M; Dvoretskii, A; Eckhart, E A; Eckmann, R; Edgar, C L; Edwards, A J; Egede, U; Eichenbaum, A M; Eigen, G; Eisner, A M; Elmer, P; Emery, S; Ernst, J A; Eschenburg, V; Eschrich, I; Eyges, V; Fabozzi, F; Faccini, R; Fan, S; Feltresi, E; Ferrarotto, F; Ferroni, F; Field, R C; Finocchiaro, G; Flacco, C J; Flack, R L; Flächer, H U; Flood, K T; Ford, K E; Ford, W T; Forster, I J; Forti, F; Fortin, D; Foulkes, S D; Franek, B; Frey, R; Fritsch, M; Fry, J R; Fulsom, B G; Gabathuler, E; Gaidot, A; Gaillard, J R; Galeazzi, F; Gallo, F; Gamba, D; Gamet, R; Gan, K K; Ganzhur, S F; Gary, J W; Gaspero, M; Gatto, C; George, K A; Gill, M S; Giorgi, M A; Giroux, X; Gladney, L; Glanzman, T; Godang, R; Goetzen, K; Golubev, V B; Gopal, G P; Gowdy, S J; Gradl, W; Graham, M T; Grancagnolo, S; Graugès-Pous, E; Graziani, G; Green, M G; Grenier, P; Gritsan, A V; Grosdidier, G; Groysman, Y; Guo, Q H; Hadavand, H K; Hadig, T; Haire, M; Halyo, V; Hamano, K; Hamel de Monchenault, G; Hamon, O; Harrison, P F; Harrison, T J; Hart, A J; Hartfiel, B L; Hast, C; Hauke, A; Hawkes, C M; Hearty, C; Held, T; Hertzbach, S S; Heusch, C A; Hill, E J; Hirschauer, J F; Hitlin, D G; Hodgkinson, M C; Hollar, J J; Hong, T M; Honscheid, K; Hopkins, D A; Hrynóva, T; Hufnagel, D; Hulsbergen, W D; Hutchcroft, D E; Höcker, A; Igonkina, O; Innes, W R; Izen, J M; Jackson, P D; Jackson, P S; Jacobsen, R G; Jawahery, A; Jessop, C P; John, M J J; Johnson, J R; Judd, D; Kadel, R W; Kadyk, J; Kagan, H; Karyotakis, Yu; Kass, R; Kelly, M P; Kelsey, M H; Kerth, L T; Khan, A; Kim, H; Kim, P; Kirkby, D; Kitayama, I; Klose, V; Knecht, N S; Koch, H; Kocian, M L; Koeneke, K; Kofler, R; Kolomensky, Yu G; Kovalskyi, D; Kowalewski, R V; Kozanecki, Witold; Kravchenko, E A; Kreisel, A; Krishnamurthy, M; Kroeger, R; Kroseberg, J; Kukartsev, G; Kutter, P E; Kyberd, P; La Vaissière, C de; Lacker, H M; Lae, C K; Lafferty, G D; Lanceri, L; Lange, D J; Langenegger, U; Lankford, A J; Latham, T E; Latour, E; Lau, Y P; Lazzaro, A; Le Diberder, F R; Lees, J P; Legendre, M; Leith, D W G S; Lepeltier, V; Leruste, P; Lewandowski, B; Li Gioi, L; Li, H; Li, X; Libby, J; Lista, L; Liu, R; Lo Vetere, M; LoSecco, J M; Lockman, W S; Lombardo, V; London, G W; Long, O; Lou, X C; Lu, M; Luitz, S; Lund, P; Luppi, E; Lusiani, A; Lutz, A M; Lynch, G; Lynch, H L; Lü, C; Lüth, V; MacFarlane, D B; Macri, M M; Mader, W F; Majewski, S A; Malcles, J; Mallik, U; Mancinelli, G; Mandelkern, M A; Marchiori, G; Margoni, M; Marks, J; Marsiske, H; Martínez-Vidal, F; Mattison, T S; Mayer, B; Mazur, M A; Mazzoni, M A; McKenna, J A; McMahon, T R; Meadows, B T; Mellado, B; Menges, W; Messner, R; Meyer, W T; Mihályi, A; Minamora, J S; Mir, L M; Mohanty, G B; Mohapatra, A K; Mommsen, R K; Monge, M R; Monorchio, D; Moore, T B; Morandin, M; Morgan, S E; Morganti, M; Morganti, S; Morii, M; Muheim, F

    2007-01-01T23:59:59.000Z

    We measure the branching ratios of the Cabibbo-suppressed decays $\\Lambda^+_c$ $\\to$ $\\Lambda$ $K^+$ and $\\Lambda^+_c$ $\\to$ $\\Sigma^{0}$ $K^+$ %(measured with improved accuracy). relative to the Cabibbo-favored decay modes $\\Lambda^+_c$ $\\to$ $\\Lambda$ $\\pi^+$ and $\\Lambda^+_c$ $\\to$ $\\Sigma^{0}$ $\\pi^+$ to be $ 0.044 \\pm 0.004 ~(\\textnormal{stat.})~ \\pm ~0.003 \\~(\\textnormal{syst.})$ and $ 0.039~ \\pm ~0.005 ~(\\textnormal{stat.})~ \\pm \\~0.003 ~(\\textnormal{syst.})$, respectively. We set an upper limit on the branching ratio at 90 % confidence level for $\\Lambda^+_c$ $\\to$ $\\Lambda$ $K^+ \\pi^+ \\pi^-$ to be $ 4.1 \\times ~10^{-2}$ relative to $\\Lambda^+_c$ $\\to$ $\\Lambda$ $\\pi^+$ and for $\\Lambda^+_c$ $\\to$ $\\Sigma^{0}$ $K^+ \\pi^+ \\pi^-$ to be $ 2.0 \\times ~10^{-2}$ relative to $\\Lambda^+_c$ $\\to$ $\\Sigma^{0}$ $\\pi^+$. We also measure the branching fraction for the Cabibbo-favored mode $\\Lambda^+_c$ $\\to$ $\\Sigma^{0}$ $\\pi^+$ relative to $\\Lambda^+_c$ $\\to$ $\\Lambda$ $\\pi^+$ to be $0.977~ \\pm ~0.015 ~(\\textnorm...

  17. Dartmouth Stellar Evolution Database and the ACS Survey of Galactic Globular Clusters II. Stellar Evolution Tracks, Isochrones, Luminosity Functions, and Synthetic Horizontal-Branch Models

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Dotter, A; Chaboyer, B; Jevremovic, D; Kostov, V; Baron, E; Ferguson, J; Sarajedini, A; Anderson, J

    Web tools are also available at the home page (http://stellar.dartmouth.edu/~models/index.html). These tools allow users to create isochrones and convert them to luminosity functions or create synthetic horizontal branch models.

  18. High precision branching ratio measurement for the superallowed beta decay of Rb-74: A prerequisite for exacting tests of the standard model

    E-Print Network [OSTI]

    Piechaczek, A.; Zganjar, EF; Ball, GC; Bricault, P.; D'Auria, JM; Hardy, John C.; Hodgson, DF; Iacob, V.; Klages, P.; Kulp, WD; Leslie, JR; Lipoglavsek, M.; Macdonald, JA; Mak, HB; Moltz, D. M.; Savard, G.; von Schwarzenberg, J.; Svensson, CE; Towner, IS; Wood, JL.

    2003-01-01T23:59:59.000Z

    Nonanalog Fermi and Gamow-Teller branches in the superallowed beta decay of Rb-74 have been investigated using gamma-ray and conversion-electron spectroscopy. Nine observed transitions, in conjunction with a recent shell model calculation, determine...

  19. High precision branching ratio measurement for the superallowed beta decay of Rb-74: A prerequisite for exacting tests of the standard model 

    E-Print Network [OSTI]

    Piechaczek, A.; Zganjar, EF; Ball, GC; Bricault, P.; D'Auria, JM; Hardy, John C.; Hodgson, DF; Iacob, V.; Klages, P.; Kulp, WD; Leslie, JR; Lipoglavsek, M.; Macdonald, JA; Mak, HB; Moltz, D. M.; Savard, G.; von Schwarzenberg, J.; Svensson, CE; Towner, IS; Wood, JL.

    2003-01-01T23:59:59.000Z

    Nonanalog Fermi and Gamow-Teller branches in the superallowed beta decay of Rb-74 have been investigated using gamma-ray and conversion-electron spectroscopy. Nine observed transitions, in conjunction with a recent shell model calculation, determine...

  20. H I observations of the asymptotic giant branch star X Herculis: Discovery of an extended circumstellar wake superposed on a compact high-velocity cloud

    E-Print Network [OSTI]

    Libert, Y.

    We report H I 21 cm line observations of the asymptotic giant branch (AGB) star X Her obtained with the Robert C. Byrd Green Bank Telescope (GBT) and the Very Large Array. We have unambiguously detected H I emission ...

  1. December 12, 2003 Mr. Mark Walker

    E-Print Network [OSTI]

    not recovered from it, and cannot afford another period of dysfunction in the wholesale power market. #12 volatile wholesale market. Another source of vulnerability arises from the asymmetric nature on either a highly variable hydro base or a volatile wholesale market. Rather, its financial vulnerability

  2. Mark Walker Director of Public Affairs

    E-Print Network [OSTI]

    energy saving efficiencies to qualified low income homeowners. At the time I saw a huge market on a grass roots basis, we are working to provide energy audits that direct ANY homeowner to a lower fuel bill, lower green house gas emissions and any investment that is aimed at reducing consumption so

  3. Mark Walker Director of Public Affairs

    E-Print Network [OSTI]

    long supported the idaho power green energy program by opting to spend more than teh market rate for receiving only green energy. Let's change our plan to reflect these increased capabilities! These gains be able to get 30- 40% more cost-effective energy efficiency by 2023 than expected. It is critical that we

  4. Mark Walker Director of Public Affairs

    E-Print Network [OSTI]

    are based on simple historical relationships between wholesale oil prices and retail prices. Forecasting to a significant extent by oil prices, and the U.S. Energy Information Administration's oil supply forecasts countries. The authors of the report acknowledge on page 14, that retail price forecasts of world oil

  5. undergraduate programs walker college of business

    E-Print Network [OSTI]

    Thaxton, Christopher S.

    a life-long ambition when she finished her studies and earned a college degree from Appalachian research university. Known for its value and affordability, Appalachian enrolls about 17,000 students experience in a unique way. ­ Tyler Morris, Appalachian senior majoring in Management #12;points of pride

  6. October 18, 2007 Mr. Mark Walker

    E-Print Network [OSTI]

    Council 851 SW 6th Avenue, Suite 1100 Portland, OR 97204 Dear Mark, Comment on "Carbon Dioxide Footprint done a good job in characterizing the CO2 impacts of a range of actions on the power system. However of the proposed actions. For example, breaching dams or lowering reservoirs below Minimum Operating Pool would

  7. November 19, 2004 Mr. Mark Walker

    E-Print Network [OSTI]

    Project is a regional non-profit organization that promotes wind, solar and geothermal resources the addition of a pulverized coal plant in the Plan. The addition of a pulverized coal plant does not fit

  8. April 21, 2004 Mr. Mark Walker

    E-Print Network [OSTI]

    should be substituted for power purchases by BPA 2. BPA's role in renewable resource development. BPA should act as a purchasing agent for its customers, but not buy any power itself. Let's examine introduction, I recently became involved in helping small public utilities purchase wind power. In the process

  9. Mark Walker Director of Public Affairs

    E-Print Network [OSTI]

    on the way to the 2030 Challenge for zero energy commercial buildings. We are looking at significant-effective energy efficiency by 2023 than expected. New Buildings Institute (www.newbuildings.org),where I work will produce energy use reductions from 15-30% better than the range of current state energy building codes

  10. Mark Walker Director of Public Affairs

    E-Print Network [OSTI]

    pipelines and it burns cleanly. This makes it a great fuel for home heating, cooking, and hot water used for home heating. Let the needs of electrical power be generated by hydro, coal or nuclear

  11. ORISE: Faculty Research Experiences - Dr. Jessie Walker

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire3627 FederalTransformers1 DIRECTORJoetheDoseCareersJessie

  12. Electronic quantum effects mapped onto non-Born-Oppenheimer nuclear paths: Nonclassical surmounting over potential barriers and trapping above the transition states due to nonadiabatic path-branching

    SciTech Connect (OSTI)

    Yamamoto, Kentaro, E-mail: kyamamoto@mns2.c.u-tokyo.ac.jp; Takatsuka, Kazuo, E-mail: kaztak@mns2.c.u-tokyo.ac.jp [Department of Basic Science, The University of Tokyo, Komaba, 153-8902 Tokyo (Japan)] [Department of Basic Science, The University of Tokyo, Komaba, 153-8902 Tokyo (Japan)

    2014-03-28T23:59:59.000Z

    We develop the path-branching representation for nonadiabatic electron wavepacket dynamics [T. Yonehara and K. Takatsuka, J. Chem. Phys. 132, 244102 (2010)] so as to treat dynamics in an energy range comparable to the barrier height of adiabatic potential energy curves. With this representation two characteristic chemical reaction dynamics are studied, in which an incident nuclear wavepacket encounters a potential barrier, on top of which lies another nonadiabatically coupled adiabatic potential curve: (1) Dynamics of initial paths coming into the nonadiabatic interaction region with energy lower than the barrier height. They branch into two pieces (and repeat branching subsequently), the upper counterparts of which can penetrate into a classically inaccessible high energy region and eventually branch back to the product region on the ground state curve. This is so to say surmounting the potential barrier via nonadiabatically coupled excited state, and phenomenologically looks like the so-called deep tunneling. (2) Dynamics of classical paths whose initial energies are a little higher than the barrier but may be lower than the bottom of the excited state. They can undergo branching and some of those components are trapped on top of the potential barrier, being followed by the population decay down to the lower state flowing both to product and reactant sites. Such expectations arising from the path-branching representation are numerically confirmed with full quantum mechanical wavepacket dynamics. This phenomenon may be experimentally observed as time-delayed pulses of wavepacket trains.

  13. TOPAZ: a computer code for modeling heat transfer and fluid flow in arbitrary networks of pipes, flow branches, and vessels

    SciTech Connect (OSTI)

    Winters, W.S.

    1984-01-01T23:59:59.000Z

    An overview of the computer code TOPAZ (Transient-One-Dimensional Pipe Flow Analyzer) is presented. TOPAZ models the flow of compressible and incompressible fluids through complex and arbitrary arrangements of pipes, valves, flow branches and vessels. Heat transfer to and from the fluid containment structures (i.e. vessel and pipe walls) can also be modeled. This document includes discussions of the fluid flow equations and containment heat conduction equations. The modeling philosophy, numerical integration technique, code architecture, and methods for generating the computational mesh are also discussed.

  14. A Measurement of the B ---> Eta/C K Branching Fraction Using the BaBar Detector

    SciTech Connect (OSTI)

    Jackson, Frank; /Manchester U.

    2006-04-26T23:59:59.000Z

    The branching fraction is measured for the decay channels B{sup 0} {yields} {eta}{sub c}K{sub S}{sup 0} and B{sup +} {yields} {eta}{sub c}K{sup +} where {eta}{sub c} {yields} K{bar K}{pi}, using the BABAR detector. The {eta}{sub c} {yields} K{sub S}{sup 0}K{sup +}{pi}{sup -} and {eta}{sub c} {yields} K{sup +}K{sup -}{pi}{sup 0} decay channels are used, including non-resonant decays and possibly those through intermediate resonances.

  15. Measurement of the relative branching ratio of B s 0 ? J / ? f 0 ( 980 ) to B s 0 ? J / ? ?

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Alverson, G.; Alves, G. A.; Aoki, M.; Askew, A.; Åsman, B.; Atkins, S.; Atramentov, O.; Augsten, K.; Avila, C.; BackusMayes, J.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D. V.; Banerjee, S.; Barberis, E.; Baringer, P.; Barreto, J.; Bartlett, J. F.; Bassler, U.; Bazterra, V.; Bean, A.; Begalli, M.; Belanger-Champagne, C.; Bellantoni, L.; Beri, S. B.; Bernardi, G.; Bernhard, R.; Bertram, I.; Besançon, M.; Beuselinck, R.; Bezzubov, V. A.; Bhat, P. C.; Bhatnagar, V.; Blazey, G.; Blessing, S.; Bloom, K.; Boehnlein, A.; Boline, D.; Boos, E. E.; Borissov, G.; Bose, T.; Brandt, A.; Brandt, O.; Brock, R.; Brooijmans, G.; Bross, A.; Brown, D.; Brown, J.; Bu, X. B.; Buehler, M.; Buescher, V.; Bunichev, V.; Burdin, S.; Burnett, T. H.; Buszello, C. P.; Calpas, B.; Camacho-Pérez, E.; Carrasco-Lizarraga, M. A.; Casey, B. C. K.; Castilla-Valdez, H.; Chakrabarti, S.; Chakraborty, D.; Chan, K. M.; Chandra, A.; Chapon, E.; Chen, G.; Chevalier-Théry, S.; Cho, D. K.; Cho, S. W.; Choi, S.; Choudhary, B.; Cihangir, S.; Claes, D.; Clutter, J.; Cooke, M.; Cooper, W. E.; Corcoran, M.; Couderc, F.; Cousinou, M.-C.; Croc, A.; Cutts, D.; Das, A.; Davies, G.; De, K.; de Jong, S. J.; De La Cruz-Burelo, E.; Déliot, F.; Demina, R.; Denisov, D.; Denisov, S. P.; Desai, S.; Deterre, C.; DeVaughan, K.; Diehl, H. T.; Diesburg, M.; Ding, P. F.; Dominguez, A.; Dorland, T.; Dubey, A.; Dudko, L. V.; Duggan, D.; Duperrin, A.; Dutt, S.; Dyshkant, A.; Eads, M.; Edmunds, D.; Ellison, J.; Elvira, V. D.; Enari, Y.; Evans, H.; Evdokimov, A.; Evdokimov, V. N.; Facini, G.; Ferbel, T.; Fiedler, F.; Filthaut, F.; Fisher, W.; Fisk, H. E.; Fortner, M.; Fox, H.; Fuess, S.; Garcia-Bellido, A.; García-Guerra, G. A; Gavrilov, V.; Gay, P.; Geng, W.; Gerbaudo, D.; Gerber, C. E.; Gershtein, Y.; Ginther, G.; Golovanov, G.; Goussiou, A.; Grannis, P. D.; Greder, S.; Greenlee, H.; Greenwood, Z. D.; Gregores, E. M.; Grenier, G.; Gris, Ph.; Grivaz, J.-F.; Grohsjean, A.; Grünendahl, S.; Grünewald, M. W.; Guillemin, T.; Gutierrez, G.; Gutierrez, P.; Haas, A.; Hagopian, S.; Haley, J.; Han, L.; Harder, K.; Harel, A.; Hauptman, J. M.; Hays, J.; Head, T.; Hebbeker, T.; Hedin, D.; Hegab, H.; Heinson, A. P.; Heintz, U.; Hensel, C.; Heredia-De La Cruz, I.; Herner, K.; Hesketh, G.; Hildreth, M. D.; Hirosky, R.; Hoang, T.; Hobbs, J. D.; Hoeneisen, B.; Hohlfeld, M.; Hubacek, Z.; Hynek, V.; Iashvili, I.; Ilchenko, Y.; Illingworth, R.; Ito, A. S.; Jabeen, S.; Jaffré, M.; Jamin, D.; Jayasinghe, A.; Jesik, R.; Johns, K.; Johnson, M.; Jonckheere, A.; Jonsson, P.; Joshi, J.; Jung, A. W.; Juste, A.; Kaadze, K.; Kajfasz, E.; Karmanov, D.; Kasper, P. A.; Katsanos, I.; Kehoe, R.; Kermiche, S.; Khalatyan, N.; Khanov, A.; Kharchilava, A.; Kharzheev, Y. N.; Kohli, J. M.; Kozelov, A. V.; Kraus, J.; Kulikov, S.; Kumar, A.; Kupco, A.; Kur?a, T.; Kuzmin, V. A.; Kvita, J.; Lammers, S.; Landsberg, G.; Lebrun, P.; Lee, H. S.; Lee, S. W.; Lee, W. M.; Lellouch, J.; Li, L.; Li, Q. Z.; Lietti, S. M.; Lim, J. K.; Lincoln, D.; Linnemann, J.; Lipaev, V. V.; Lipton, R.; Liu, Y.; Lobodenko, A.; Lokajicek, M.; Lopes de Sa, R.; Lubatti, H. J.; Luna-Garcia, R.; Lyon, A. L.; Maciel, A. K. A.; Mackin, D.; Madar, R.; Magaña-Villalba, R.; Malik, S.; Malyshev, V. L.; Maravin, Y.; Martínez-Ortega, J.; McCarthy, R.; McGivern, C. L.; Meijer, M. M.; Melnitchouk, A.; Menezes, D.; Mercadante, P. G.; Merkin, M.; Meyer, A.; Meyer, J.; Miconi, F.; Mondal, N. K.; Muanza, G. S.; Mulhearn, M.; Nagy, E.; Naimuddin, M.; Narain, M.; Nayyar, R.; Neal, H. A.; Negret, J. P.; Neustroev, P.; Novaes, S. F.; Nunnemann, T.; Obrant, G.; Orduna, J.; Osman, N.; Osta, J.; Otero y Garzón, G. J.; Padilla, M.; Pal, A.; Parashar, N.; Parihar, V.; Park, S. K.; Partridge, R.; Parua, N.; Patwa, A.; Penning, B.; Perfilov, M.; Peters, Y.; Petridis, K.; Petrillo, G.; Pétroff, P.; Piegaia, R.; Pleier, M.-A.; Podesta-Lerma, P. L. M.; Podstavkov, V. M.; Polozov, P.; Popov, A. V.; Prewitt, M.; Price, D.; Prokopenko, N.; Qian, J.; Quadt, A.; Quinn, B.; Rangel, M. S.; Ranjan, K.; Ratoff, P. N.; Razumov, I.; Renkel, P.; Rijssenbeek, M.; Ripp-Baudot, I.; Rizatdinova, F.; Rominsky, M.; Ross, A.; Royon, C.; Rubinov, P.; Ruchti, R.; Safronov, G.; Sajot, G.; Salcido, P.; Sánchez-Hernández, A.; Sanders, M. P.; Sanghi, B.; Santos, A. S.; Savage, G.; Sawyer, L.; Scanlon, T.; Schamberger, R. D.; Scheglov, Y.; Schellman, H.; Schliephake, T.; Schlobohm, S.; Schwanenberger, C.; Schwienhorst, R.; Sekaric, J.; Severini, H.; Shabalina, E.; Shary, V.; Shchukin, A. A.; Shivpuri, R. K.; Simak, V.; Sirotenko, V.; Skubic, P.; Slattery, P.; Smirnov, D.; Smith, K. J.; Snow, G. R.; Snow, J.; Snyder, S.; Söldner-Rembold, S.; Sonnenschein, L.; Soustruznik, K.

    2012-01-01T23:59:59.000Z

    We present a measurement of the relative branching fraction, Rf?/?, of BB0s?J/?f?(980), with f?(980)?????, to the process BB0s?J/??, with ??K?K?. The J/?f?(980) final state corresponds to a CP-odd eigenstate of BB0s that could be of interest in future studies of CP violation. Using 8 fb?¹ of data recorded with the D0 detector at the Fermilab Tevatron Collider, we find Rf?/?=0.275±0.041(stat)±0.061(syst).

  16. Measurements of branching fractions and time-dependent C P violating asymmetries in B 0 ? D ( * ) ± D ? decays

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Röhrken, M.; Adachi, I.; Aihara, H.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Barrett, M.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bonvicini, G.; Bozek, A.; Bra?ko, M.; Brovchenko, O.; Browder, T. E.; Chang, M.-C.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Cho, I.-S.; Cho, K.; Choi, Y.; Dalseno, J.; Doležal, Z.; Drásal, Z.; Drutskoy, A.; Eidelman, S.; Fast, J. E.; Feindt, M.; Gaur, V.; Gabyshev, N.; Garmash, A.; Goh, Y. M.; Haba, J.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Koblitz, S.; Kodyš, P.; Korpar, S.; Kouzes, R. T.; Križan, P.; Krokovny, P.; Kronenbitter, B.; Kuhr, T.; Kumita, T.; Kwon, Y.-J.; Lee, S.-H.; Li, J.; Li, Y.; Libby, J.; Liu, C.; Liu, Y.; Liu, Z. Q.; Liventsev, D.; Louvot, R.; Miyabayashi, K.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Mori, T.; Muramatsu, N.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ozaki, H.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Park, K. S.; Pedlar, T. K.; Pestotnik, R.; Petri?, M.; Piilonen, L. E.; Poluektov, A.; Prim, M.; Prothmann, K.; Ritter, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Sanuki, T.; Sato, Y.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shibata, T.-A.; Shiu, J.-G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Singh, J. B.; Smerkol, P.; Sohn, Y.-S.; Sokolov, A.; Solovieva, E.; Stani?, S.; Stari?, M.; Sumisawa, K.; Sumiyoshi, T.; Trabelsi, K.; Uchida, M.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Vanhoefer, P.; Varner, G.; Varvell, K. E.; Vorobyev, V.; Wang, C. H.; Wang, M.-Z.; Wang, P.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamamoto, H.; Yamashita, Y.; Zander, D.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

    2012-05-01T23:59:59.000Z

    We report measurements of branching fractions and time-dependent CP asymmetries in B??D?D? and B??D*±D? decays using a data sample that contains (772±11)×10?BB¯¯¯ pairs collected at the ?(4S) resonance with the Belle detector at the KEKB asymmetric-energy e?e? collider. We determine the branching fractions to be B(B??D?D?)=(2.12±0.16±0.18)×10?? and B(B??D*±D?)=(6.14±0.29±0.50)×10??. We measure CP asymmetry parameters SD?D?=–1.06+0.21–0.14±0.08 and CD?D?=–0.43±0.16±0.05 in B??D?D? and AD*D=+0.06±0.05±0.02, SD*D=–0.78±0.15±0.05, CD*D=–0.01±0.11±0.04, ?SD*D=–0.13±0.15±0.04 and ?CD*D=+0.12±0.11±0.03 in B??D*±D?, where the first uncertainty is statistical and the second is systematic. We exclude the conservation of CP symmetry in both decays at equal to or greater than 4? significance.

  17. Measurements of branching fractions for inclusive K0~/K0 and K*(892)+- decays of neutral and charged D mesons

    E-Print Network [OSTI]

    M. Ablikim

    2006-11-30T23:59:59.000Z

    Using the data sample of about 33 pb-1 collected at and around 3.773 GeV with the BES-II detector at the BEPC collider, we have studied inclusive K0~/K0 and K*(892)+- decays of D0 and D+ mesons. The branching fractions for the inclusive K0~/K0 and K*(892)- decays are measured to be BF(D0 to K0~/K0 X)=(47.6+-4.8+-3.0)%, BF(D+ to K0~/K0 X)=(60.5+-5.5+-3.3)%, BF(D0 to K*- X)=(15.3+- 8.3+- 1.9)% and BF(D+ to K*- X)=(5.7+- 5.2+- 0.7)%. The upper limits of the branching fractions for the inclusive K*(892)+ decays are set to be BF(D0 to K*+ X)<3.6% and BF(D+ to K*+ X) <20.3% at 90% confidence level.

  18. Branching ratios for the decays of {psi}(3770) and Y(10580) mesons to a pair of light hadrons

    SciTech Connect (OSTI)

    Achasov, N. N., E-mail: achasov@math.nsc.ru; Kozhevnikov, A. A. [Russian Academy of Sciences, Sobolev Institute of Mathematics, Siberian Division (Russian Federation)], E-mail: kozhev@math.nsc.ru

    2006-06-15T23:59:59.000Z

    The branching ratios for the exclusive decays of the heavy quarkonia {psi}(3770) and Y(10580) to a pair of light mesons [{pi}{sup +}{pi}{sup -}, KK-bar, {rho}({omega}){pi}, {rho}({omega}){eta}, {rho}({omega}){eta}', K{sup *}K-bar+c.c, {rho}{sup +}{rho}{sup -}, and K{sup *}K-bar{sup *}] and the branching ratios for the decays {psi}(3770) {sup {yields}} J/{psi} + P(P = {pi}{sup 0}, {eta}) and Y(10580) {sup {yields}} Y(1S) + P(P = {pi}{sup 0},{eta},{eta}'), which involve a heavy quarkonium in the final state, are calculated with allowance for new data on the width of the D*{sup {+-}}(2010) meson and the mass differences between the charged and neutral beauty mesons (B{sup {+-}}, on one hand, and B{sup 0} and B-bar{sup 0}, on the other hand). The calculations are based on the model where the Okubo-Zweig-Iizuka rule is dynamically violated owing to the intermediate state DD-bar(BB-bar) in the case of the {psi}(3770) [Y(10580)] meson. The inclusive annihilation of {psi}(3770) and Y(10580) mesons to light hadrons is discussed.

  19. FUNDAMENTAL PARAMETERS, INTEGRATED RED GIANT BRANCH MASS LOSS, AND DUST PRODUCTION IN THE GALACTIC GLOBULAR CLUSTER 47 TUCANAE

    SciTech Connect (OSTI)

    McDonald, I.; Zijlstra, A. A. [Jodrell Bank Centre for Astrophysics, Alan Turing Building, Manchester, M13 9PL (United Kingdom); Boyer, M. L.; Gordon, K.; Meixner, M.; Sewilo, M.; Shiao, B.; Whitney, B. [STScI, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Van Loon, J. Th. [Lennard-Jones Laboratories, Keele University, ST5 5BG (United Kingdom); Hora, J. L.; Robitaille, T. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS 65, Cambridge, MA 02138-1516 (United States); Babler, B.; Meade, M. [Department of Astronomy, University of Wisconsin, Madison, 475 North Charter Street, Madison, WI 53706-1582 (United States); Block, M.; Misselt, K., E-mail: iain.mcdonald-2@manchester.ac.uk [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tuscon, AZ 85721 (United States)

    2011-04-01T23:59:59.000Z

    Fundamental parameters and time evolution of mass loss are investigated for post-main-sequence stars in the Galactic globular cluster 47 Tucanae (NGC 104). This is accomplished by fitting spectral energy distributions (SEDs) to existing optical and infrared photometry and spectroscopy, to produce a true Hertzsprung-Russell diagram. We confirm the cluster's distance as d = 4611{sup +213}{sub -200} pc and age as 12 {+-} 1 Gyr. Horizontal branch models appear to confirm that no more red giant branch mass loss occurs in 47 Tuc than in the more metal-poor {omega} Centauri, though difficulties arise due to inconsistencies between the models. Using our SEDs, we identify those stars that exhibit infrared excess, finding excess only among the brightest giants: dusty mass loss begins at a luminosity of {approx}1000 L{sub sun}, becoming ubiquitous above L = 2000 L{sub sun}. Recent claims of dust production around lower-luminosity giants cannot be reproduced, despite using the same archival Spitzer imagery.

  20. Measurement of Branching Fractions of B0 Decays to K1(1270)+ pi- and K1(1400)+ pi-

    SciTech Connect (OSTI)

    Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; /Annecy, LAPP; Garra Tico, J.; Grauges, E.; /Barcelona U., ECM; Lopez, L.; Palano, Antimo; Pappagallo, M.; /Bari U. /INFN, Bari; Eigen, G.; Stugu, Bjarne; Sun, L.; /Bergen U.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Cahn, Robert N.; Jacobsen, R.G.; /LBL, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Consorzio Milano Ricerche /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Napoli Seconda U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /INFN, Pisa /Princeton U. /Banca di Roma /Frascati /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

    2008-08-04T23:59:59.000Z

    We present a measurement of the branching fraction of neutral B meson decaying to final states containing a K1 meson, i.e. K{sub 1}(1270) and K{sub 1}(1400), and a charged pion. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 454 million B{bar B} pairs produced in e{sup +}e{sup -} annihilation. We measure the branching fraction {Beta}(B{sup 0} {yields} K{sub 1}{sup +}{pi}{sup -}) = (31.0 {+-} 2.7 {+-} 6.9) x 10{sup -6}, where the first error quoted is statistical and the second is systematic. In the framework of the K-matrix formalism used to describe these decays, we also set limits on the ratio of the production constants for the K{sub 1}(1270){sup +} and K{sub 1}(1400){sup +} mesons in B{sup 0} decays.

  1. Remedial investigation report on Chestnut Ridge Operable Unit 2 (filled coal ash pond/Upper McCoy Branch) at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee. Volume 2: Appendixes

    SciTech Connect (OSTI)

    Not Available

    1994-08-01T23:59:59.000Z

    This report comprises appendices A--J which support the Y-12 Plant`s remedial action report involving Chestnut Ridge Operable Unit 2 (filled coal ash pond/Upper McCoy Branch). The appendices cover the following: Sampling fish from McCoy Branch; well and piezometer logs; ecological effects of contaminants in McCoy Branch 1989-1990; heavy metal bioaccumulation data; microbes in polluted sediments; and baseline human health risk assessment data.

  2. Measurement of the Absolute Branching Fractions of$B^\\pm \\to K^\\pm X_{c\\bar c}$

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-11-02T23:59:59.000Z

    We study the two-body decays of B{sup {+-}} mesons to K{sup {+-}} and a charmonium state, X{sub c{bar c}}, in a sample of 210.5 fb{sup -1} of data from the BABAR experiment. We perform measurements of absolute branching fractions {Beta}(B{sup {+-}} {yields} K{sup {+-}} X{sub c{bar c}}) using a missing mass technique, and report several new or improved results. In particular, the upper limit {Beta}(B{sup {+-}} {yields} K{sup {+-}}(3872)) < 3.2 x 10{sup -4} at 90% CL and the inferred lower limit {Beta}(X(3872) {yields} J/{psi}{pi}{sup +}{pi}{sup -}) > 4.2% will help in understanding the nature of the recently discovered X(3872).

  3. Measurement of the B -> Omega l Nu and B -> Eta l Nu Branching Fractions Using Neutrino Reconstruction

    SciTech Connect (OSTI)

    Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, Vincent; /Annecy, LAPP; Garra Tico, J.; Grauges, E.; /Barcelona U., ECM; Lopez, L.; Palano, Antimo; Pappagallo, M.; /Bari U. /INFN, Bari; Eigen, G.; Stugu, Bjarne; Sun, L.; /Bergen U.; Abrams, G.S.; Battaglia, M.; Brown, D.N.; Cahn, Robert N.; Jacobsen, R.G.; /LBL, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Consorzio Milano Ricerche /INFN, Milan /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /Napoli Seconda U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Pennsylvania U. /Perugia U. /INFN, Perugia /INFN, Pisa /Princeton U. /Banca di Roma /Frascati /Rostock U. /Rutherford /DAPNIA, Saclay /South Carolina U. /SLAC /Stanford U., Phys. Dept. /SUNY, Albany /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

    2008-09-09T23:59:59.000Z

    The authors present a study of the charmless semileptonic B-meson decays B{sup +} {yields} {omega}{ell}{sup +}{nu} and B{sup +} {yields} {eta}{ell}{sup +}{nu}. The analysis is based on 383 million B{bar B} pairs recorded at the {Upsilon}(4S) resonance with the BABAR detector. The {omega} mesons are reconstructed in the channel {omega} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup 0} and the {eta} mesons in the channels {eta} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup 0} and {eta} {yields} {gamma}{gamma}. They measure the branching fractions {Beta}(B{sup +} {yields} {omega}{ell}{sup +}{nu}) = (1.14 {+-} 0.16{sub stat} {+-} 0.08{sub syst}) x 10{sup -4} and {Beta}(B{sup +} {yields} {eta}{ell}{sup +}{nu}) = (0.31 {+-} 0.06{sub stat} {+-} 0.08{sub syst}) x 10{sup -4}.

  4. STAR-TO-STAR IRON ABUNDANCE VARIATIONS IN RED GIANT BRANCH STARS IN THE GALACTIC GLOBULAR CLUSTER NGC 3201

    SciTech Connect (OSTI)

    Simmerer, Jennifer; Ivans, Inese I.; Filler, Dan [Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112 (United States); Francois, Patrick [Paris-Meudon Observatory, France and Universite de Picardie Jules Verne, F-80080 Amiens (France); Charbonnel, Corinne [Geneva Observatory, University of Geneva, Chemin des Maillettes 51, CH-1290 Versoix (Switzerland); Monier, Richard [Laboratoire Hippolyte Fizeau, Universite Nice Sophia Antipolis, Parc Valrose, F-06000 Nice (France); James, Gaeel, E-mail: jennifer@physics.utah.edu, E-mail: iii@physics.utah.edu, E-mail: dan.filler@utah.edu, E-mail: patrick.francois@obspm.fr, E-mail: corinne.charbonnel@unige.ch, E-mail: richard.monier@unice.fr, E-mail: gjames@eso.org [European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei Munchen (Germany)

    2013-02-10T23:59:59.000Z

    We present the metallicity as traced by the abundance of iron in the retrograde globular cluster NGC 3201, measured from high-resolution, high signal-to-noise spectra of 24 red giant branch stars. A spectroscopic analysis reveals a spread in [Fe/H] in the cluster stars at least as large as 0.4 dex. Star-to-star metallicity variations are supported both through photometry and through a detailed examination of spectra. We find no correlation between iron abundance and distance from the cluster core, as might be inferred from recent photometric studies. NGC 3201 is the lowest mass halo cluster to date to contain stars with significantly different [Fe/H] values.

  5. Measurements of the B to Xs gamma Branching Fraction and Spectral Shape from a Sum of Exclusive Final States

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-08-26T23:59:59.000Z

    Using 88.9 million B{bar B} events collected by the BABAR detector at the {Upsilon}(4S), they measure the branching fraction for the radiative penguin process B {yields} X{sub s}{gamma} from the sum of 38 exclusive final states. The inclusive branching fraction above a minimum photon energy E{sub {gamma}} > 1.9 GeV is {Beta}(b {yields} s{gamma}) = (3.27 {+-} 0.18(stat.){sub -0.40}{sup +0.55}(syst.){sub -0.09}{sup +0.04}(theory)) x 10{sup -4}. They also measure the isospin asymmetry between B{sup -} {yields} X{sub s{bar u}}{gamma} and {bar B}{sup 0} {yields} X{sub sd}{gamma} to be {Delta}{sub 0-} = -0.006 {+-} 0.058(stat.) {+-} 0.009(syst.) {+-} 0.024({bar B}{sup 0}/B{sup -}). The photon energy spectrum is measured in the B rest frame, from which moments are derived for different values of the minimum photon energy. They present fits to the photon spectrum and moments which give the heavy-quark parameters m{sub b} and {mu}{sub {pi}}{sup 2}. The fitted parameters are consistent with those obtained from semileptonic B {yields} X{sub c}{ell}{nu} decays, and are useful inputs for the extraction of |V{sub ub}| from measurements of semileptonic B {yields} X{sub u}{ell}{nu} decays.

  6. THE ACS NEARBY GALAXY SURVEY TREASURY. IX. CONSTRAINING ASYMPTOTIC GIANT BRANCH EVOLUTION WITH OLD METAL-POOR GALAXIES

    SciTech Connect (OSTI)

    Girardi, Leo [Osservatorio Astronomico di Padova-INAF, Vicolo dell'Osservatorio 5, I-35122 Padova (Italy); Williams, Benjamin F.; Gilbert, Karoline M.; Rosenfield, Philip; Dalcanton, Julianne J. [Department of Astronomy, University of Washington, Box 351580, Seattle, WA 98195 (United States); Marigo, Paola [Dipartimento di Astronomia, Universita di Padova, Vicolo dell'Osservatorio 2, I-35122 Padova (Italy); Boyer, Martha L. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Dolphin, Andrew [Raytheon Company, 1151 East Hermans Road, Tucson, AZ 85756 (United States); Weisz, Daniel R.; Skillman, Evan [Department of Astronomy, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455 (United States); Melbourne, Jason [Caltech Optical Observatories, Division of Physics, Mathematics and Astronomy, Mail Stop 301-17, California Institute of Technology, Pasadena, CA 91125 (United States); Olsen, Knut A. G. [National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Seth, Anil C. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

    2010-12-01T23:59:59.000Z

    In an attempt to constrain evolutionary models of the asymptotic giant branch (AGB) phase at the limit of low masses and low metallicities, we have examined the luminosity functions and number ratios between AGB and red giant branch (RGB) stars from a sample of resolved galaxies from the ACS Nearby Galaxy Survey Treasury. This database provides Hubble Space Telescope optical photometry together with maps of completeness, photometric errors, and star formation histories for dozens of galaxies within 4 Mpc. We select 12 galaxies characterized by predominantly metal-poor populations as indicated by a very steep and blue RGB, and which do not present any indication of recent star formation in their color-magnitude diagrams. Thousands of AGB stars brighter than the tip of the RGB (TRGB) are present in the sample (between 60 and 400 per galaxy), hence, the Poisson noise has little impact in our measurements of the AGB/RGB ratio. We model the photometric data with a few sets of thermally pulsing AGB (TP-AGB) evolutionary models with different prescriptions for the mass loss. This technique allows us to set stringent constraints on the TP-AGB models of low-mass, metal-poor stars (with M < 1.5 M{sub sun}, [Fe/H]{approx}< -1.0). Indeed, those which satisfactorily reproduce the observed AGB/RGB ratios have TP-AGB lifetimes between 1.2 and 1.8 Myr, and finish their nuclear burning lives with masses between 0.51 and 0.55 M{sub sun}. This is also in good agreement with recent observations of white dwarf masses in the M4 old globular cluster. These constraints can be added to those already derived from Magellanic Cloud star clusters as important mileposts in the arduous process of calibrating AGB evolutionary models.

  7. ON CALL/OFFICER OF THE DAY The Officer of the Day (OD) is a Clinical Associate (Fellow) assigned to a Program or Branch

    E-Print Network [OSTI]

    Baker, Chris I.

    ON CALL/OFFICER OF THE DAY The Officer of the Day (OD) is a Clinical Associate (Fellow) assigned to a Program or Branch within the DIRP. As OD, he/she reports to the Office of the Clinical Director (OCD). The OD provides coverage of NIMH inpatients and outpatients when a member of the responsible treatment

  8. A measurement of the branching fractions of the f1(1285) and f1(1420) produced in central pp interactions at 450 GeV/c

    E-Print Network [OSTI]

    The WA102 Collaboration; D. Barberis et al

    1998-10-02T23:59:59.000Z

    A study of the f1(1285) and f1(1420) produced in central pp interactions has been performed. For the first time in a single experiment the branching fractions of both mesons in all major decay modes have been determined. Both the f1(1285) and f1(1420) are consistent with being produced by double Pomeron exchange.

  9. Search for the decay D[superscript 0]??? and measurement of the branching fraction for D[superscript 0]??[superscript 0]?[superscript 0

    E-Print Network [OSTI]

    Cowan, Ray Franklin

    We search for the rare decay of the D[superscript 0] meson to two photons, D[superscript 0]???, and present a measurement of the branching fraction for a D[superscript 0] meson decaying to two neutral pions, B(D[superscript ...

  10. Data Summary Report for the Annual Fourmile Branch and F- and H-Area Seeplines, Appendix IX Metals and Radionuclides, 1998

    SciTech Connect (OSTI)

    Koch, J.

    1999-08-23T23:59:59.000Z

    This report presents a summary of the definitive data validation and verification for the 1998 RFI/RI annual Appendix IX metals and radionuclides survey for Fourmile Branch and the F- and H-Area Seeplines. The validation process began with project mobilization and continued through the delivery of EDDs and this report.

  11. A BAYESIAN APPROACH TO LOCATING THE RED GIANT BRANCH TIP MAGNITUDE. II. DISTANCES TO THE SATELLITES OF M31

    SciTech Connect (OSTI)

    Conn, A. R.; Parker, Q. A.; Zucker, D. B. [Department of Physics and Astronomy, Macquarie University, NSW 2109 (Australia); Ibata, R. A.; Martin, N. F. [Observatoire Astronomique, Universite de Strasbourg, CNRS, F-67000 Strasbourg (France); Lewis, G. F. [Sydney Institute for Astronomy, School of Physics, A28, University of Sydney, Sydney, NSW 2006 (Australia); McConnachie, A. W. [NRC Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, British Columbia V9E 2E7 (Canada); Irwin, M. J.; Chapman, S. C. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom); Tanvir, N. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Fardal, M. A. [University of Massachusetts, Department of Astronomy, LGRT 619-E, 710 N. Pleasant Street, Amherst, MA 01003-9305 (United States); Ferguson, A. M. N. [Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ (United Kingdom); Valls-Gabaud, D. [Observatoire de Paris, LERMA, 61 Avenue de l'Observatoire, F-75014 Paris (France)

    2012-10-10T23:59:59.000Z

    In 'A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude (Part I)', a new technique was introduced for obtaining distances using the tip of the red giant branch (TRGB) standard candle. Here we describe a useful complement to the technique with the potential to further reduce the uncertainty in our distance measurements by incorporating a matched-filter weighting scheme into the model likelihood calculations. In this scheme, stars are weighted according to their probability of being true object members. We then re-test our modified algorithm using random-realization artificial data to verify the validity of the generated posterior probability distributions (PPDs) and proceed to apply the algorithm to the satellite system of M31, culminating in a three-dimensional view of the system. Further to the distributions thus obtained, we apply a satellite-specific prior on the satellite distances to weight the resulting distance posterior distributions, based on the halo density profile. Thus in a single publication, using a single method, a comprehensive coverage of the distances to the companion galaxies of M31 is presented, encompassing the dwarf spheroidals Andromedas I-III, V, IX-XXVII, and XXX along with NGC 147, NGC 185, M33, and M31 itself. Of these, the distances to Andromedas XXIV-XXVII and Andromeda XXX have never before been derived using the TRGB. Object distances are determined from high-resolution tip magnitude posterior distributions generated using the Markov Chain Monte Carlo technique and associated sampling of these distributions to take into account uncertainties in foreground extinction and the absolute magnitude of the TRGB as well as photometric errors. The distance PPDs obtained for each object both with and without the aforementioned prior are made available to the reader in tabular form. The large object coverage takes advantage of the unprecedented size and photometric depth of the Pan-Andromeda Archaeological Survey. Finally, a preliminary investigation into the satellite density distribution within the halo is made using the obtained distance distributions. For simplicity, this investigation assumes a single power law for the density as a function of radius, with the slope of this power law examined for several subsets of the entire satellite sample.

  12. Measurement of CP Asymmetries and Branching Fractions in Charmless Two-Body B-Meson Decays to Pions and Kaons

    SciTech Connect (OSTI)

    Lees, J.P.; Poireau, V.; Tisserand, V.; /Annecy, LAPP; Garra Tico, J.; Grauges, E.; /Barcelona U., ECM; Palano, A.; /Bari U. /INFN, Bari; Eigen, G.; Stugu, B.; /Bergen U.; Brown, D.N.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; /LBL, Berkeley /UC, Berkeley; Koch, H.; Schroeder, T.; /Ruhr U., Bochum; Asgeirsson, D.J.; Hearty, C.; Mattison, T.S.; McKenna, J.A.; So, R.Y.; /British Columbia U.; Khan, A.; /Brunel U.; Blinov, V.E.; /Novosibirsk, IYF /UC, Irvine /UC, Riverside /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Genoa U. /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Harvey Mudd Coll. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U., Comp. Sci. Dept. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Milan U. /INFN, Milan /Mississippi U. /Montreal U. /Naples U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Perugia U. /INFN, Perugia /INFN, Pisa /Princeton U. /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /SLAC /South Carolina U. /Southern Methodist U. /Stanford U., Phys. Dept. /SUNY, Albany /Tel Aviv U. /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

    2012-06-18T23:59:59.000Z

    We present improved measurements of CP-violation parameters in the decays B{sup 0} {yields} {pi}{sup +}{pi}{sup -}, B{sup 0} {yields} K{sup +}{pi}{sup -}, and B{sup 0} {yields} {pi}{sup 0}{pi}{sup 0}, and of the branching fractions for B{sup 0} {yields} {pi}{sup 0}{pi}{sup 0} and B{sup 0} {yields} K{sup 0}{pi}{sup 0}. The results are obtained with the full data set collected at the {Upsilon}(4S) resonance by the BABAR experiment at the PEP-II asymmetric-energy B factory at the SLAC National Accelerator Laboratory, corresponding to 467 {+-} 5 million B{bar B} pairs. We find the CP-violation parameter values and branching fractions S{sub {pi}{sup +}{pi}{sup -}} = -0.68 {+-} 0.10 {+-} 0.03, C{sub {pi}{sup +}{pi}{sup -}} = -0.25 {+-} 0.08 {+-} 0.02, {Alpha}{sub K{sup -}{pi}{sup +}} = -0.107 {+-} 0.016{sub -0.004}{sup +0.006}, C{sub {pi}{sup 0}{pi}{sup 0}} = -0.43 {+-} 0.26 {+-} 0.05, {Beta}(B{sup 0} {yields} {pi}{sup 0}{pi}{sup 0}) = (1.83 {+-} 0.21 {+-} 0.13) x 10{sup -6}, {Beta}(B{sup 0} {yields} K0{pi}{sup 0}) = (10.1 {+-} 0.6 {+-} 0.4) x 10{sup -6}, where in each case, the first uncertainties are statistical and the second are systematic. We observe CP violation with a significance of 6.7 standard deviations for B{sup 0} {yields} {pi}{sup +}{pi}{sup -} and 6.1 standard deviations for B{sup 0} {yields} K{sup +}{pi}{sup -}, including systematic uncertainties. Constraints on the Unitarity Triangle angle {alpha} are determined from the isospin relations among the B {yields} {pi}{pi} rates and asymmetries. Considering only the solution preferred by the Standard Model, we find {alpha} to be in the range [71{sup o}, 109{sup o}] at the 68% confidence level.

  13. Supernova Explosions of Super-Asymptotic Giant Branch Stars: Multicolor Light Curves of Electron-Capture Supernovae

    E-Print Network [OSTI]

    Tominaga, Nozomu; Nomoto, Ken'ichi

    2013-01-01T23:59:59.000Z

    An electron-capture supernova (ECSN) is a core-collapse supernova explosion of a super-asymptotic giant branch (SAGB) star with a main-sequence mass $M_{\\rm ms}\\sim7-9.5M_\\odot$. The explosion takes place in accordance with core bounce and subsequent neutrino heating and is a unique example successfully produced by first-principle simulation. This allows us to derive a first self-consistent multicolor light curves of a core-collapse supernova. Adopting the explosion properties derived by the first-principle simulation, i.e., the low explosion energy of $1.5\\times10^{50}$ erg and the small $^{56}$Ni mass of $2.5\\times10^{-3}M_\\odot$, we perform a multigroup radiation hydrodynamics calculation of ECSNe and present multicolor light curves of ECSNe of SAGB stars with various envelope mass and hydrogen abundance. We demonstrate that a shock breakout has peak luminosity of $L\\sim2\\times10^{44}$ erg/s and can evaporate circumstellar dust up to $R\\sim10^{17}$ cm for a case of carbon dust, that plateau luminosity and ...

  14. Measurement of the $B^+\\rightarrow p \\bar{p} K^{+}$ Branching Fraction and Study of the Decay Dynamics

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-07-06T23:59:59.000Z

    With a sample of 232 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} events collected with the BABAR detector, we study the decay B{sup +} {yields} p{bar p}K{sup +} excluding charmonium decays to p{bar p}. We measure a branching fraction {Beta}(B{sup +} {yields} p{bar p}K{sup +}) = (6.7 {+-} 0.5 {+-} 0.4) x 10{sup -6}. An enhancement at low p{bar p} mass is observed and the Dalitz plot asymmetry suggests dominance of the penguin amplitude in this B decay. We search for a pentaquark candidate {Theta}*{sup ++} decaying into pK{sup +} in the mass range 1.43 to 2.00 GeV/c{sup 2} and set limits on {Beta}(B{sup +} {yields} {Theta}*{sup ++} {bar p}) x {Beta}({Theta}*{sup ++} {yields} pK{sup +}) at the 10{sup -7} level.

  15. Compilation of reports from research supported by the Materials Engineering Branch, Division of Engineering: 1991--1993. Volume 2

    SciTech Connect (OSTI)

    Hiser, A.L. [comp.

    1994-06-01T23:59:59.000Z

    Since 1965, the Materials Engineering Branch, Division of Engineering, of the Nuclear Regulatory Commission`s Office of Nuclear Regulatory Research, and its predecessors dating back to the Atomic Energy Commission (AEC), has sponsored research programs concerning the integrity of the primary system pressure boundary of light water reactors. The components of concern in these research programs have included the reactor pressure vessel (RPV), steam generators, and the piping. These research programs have covered a broad range of topics, including fracture mechanics analysis and experimental work for RPV and piping applications, inspection method development and qualification, and evaluation of irradiation effects to RPV steels. This report provides as complete a listing as practical of formal technical reports submitted to the NRC by the investigators working on these research programs. This listing includes topical, final and progress reports, and is segmented by topic area. In many cases a report will cover several topics (such as in the case of progress reports of multi-faceted programs), but is listed under only one topic. Therefore, in searching for reports on a specific topic, other related topic areas should be checked also. The separate volumes of this report cover the following periods: Volume 1: 1965--1990 and Volume 2: 1991--1993.

  16. Dust production from sub-solar to super-solar metallicity in Thermally Pulsing Asymptotic Giant Branch Stars

    E-Print Network [OSTI]

    Ambra, Nanni; Paola, Marigo; Léo, Girardi; Atefeh, Javadi; Jacco, van Loon

    2014-01-01T23:59:59.000Z

    We discuss the dust chemistry and growth in the circumstellar envelopes (CSEs) of Thermally Pulsing Asymptotic Giant Branch (TP-AGB) star models computed with the COLIBRI code, at varying initial mass and metallicity (Z=0.001, 0.008, 0.02, 0.04, 0.06). A relevant result of our analysis deals with the silicate production in M-stars. We show that, in order to reproduce the observed trend between terminal velocities and mass-loss rates in Galactic M-giants, one has to significantly reduce the efficiency of chemisputtering by H2 molecules, usually considered as the most effective dust destruction mechanism. This indication is also in agreement with the most recent laboratory results, which show that silicates may condense already at T=1400 K, instead than at Tcond=1000 K, as obtained by models that include chemisputtering. From the analysis of the total dust ejecta, we find that the total dust-to-gas ejecta of intermediate-mass stars are much less dependent on metallicity than usually assumed. In a broader contex...

  17. Effects of constraints in general branched molecules: A quantitative ab initio study in HCO-L-Ala-NH2

    E-Print Network [OSTI]

    Pablo Echenique; J. L. Alonso; Ivan Calvo

    2006-12-04T23:59:59.000Z

    A general approach to the design of accurate classical potentials for protein folding is described. It includes the introduction of a meaningful statistical measure of the differences between approximations of the same potential energy, the definition of a set of Systematic and Approximately Separable and Modular Internal Coordinates (SASMIC), much convenient for the simulation of general branched molecules, and the imposition of constraints on the most rapidly oscillating degrees of freedom. All these tools are used to study the effects of constraints in the Conformational Equilibrium Distribution (CED) of the model dipeptide HCO-L-Ala-NH2. We use ab initio Quantum Mechanics calculations including electron correlation at the MP2 level to describe the system, and we measure the conformational dependence of the correcting terms to the naive CED based in the Potential Energy Surface (PES) without any simplifying assumption. These terms are related to mass-metric tensors determinants and also occur in the Fixman's compensating potential. We show that some of the corrections are non-negligible if one is interested in the whole Ramachandran space. On the other hand, if only the energetically lower region, containing the principal secondary structure elements, is assumed to be relevant, then, all correcting terms may be neglected up to peptides of considerable length. This is the first time, as far as we know, that the analysis of the conformational dependence of these correcting terms is performed in a relevant biomolecule with a realistic potential energy function.

  18. Measurement of the B????l?? and B???(')l?? branching fractions, the B????l?? and B???l?? form-factor shapes, and determination of |Vub|

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E.; Martinelli, M.; Milanes, D. A.; Palano, A.; Pappagallo, M.; Eigen, G.; Stugu, B.; Sun, L.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lynch, G.; Osipenkov, I. L.; Koch, H.; Schroeder, T.; Asgeirsson, D. J.; Hearty, C.; Mattison, T. S.; McKenna, J. A.; Khan, A.; Randle-Conde, A.; Blinov, V. E.; Buzykaev, A. R.; Druzhinin, V. P.; Golubev, V. B.; Kravchenko, E. A.; Onuchin, A. P.; Serednyakov, S. I.; Skovpen, Yu. I.; Solodov, E. P.; Todyshev, K. Yu.; Yushkov, A. N.; Bondioli, M.; Curry, S.; Kirkby, D.; Lankford, A. J.; Mandelkern, M.; Martin, E. C.; Stoker, D. P.; Atmacan, H.; Gary, J. W.; Liu, F.; Long, O.; Vitug, G. M.; Campagnari, C.; Hong, T. M.; Kovalskyi, D.; Richman, J. D.; West, C.; Eisner, A. M.; Heusch, C. A.; Kroseberg, J.; Lockman, W. S.; Martinez, A. J.; Schalk, T.; Schumm, B. A.; Seiden, A.; Winstrom, L. O.; Cheng, C. H.; Doll, D. A.; Echenard, B.; Hitlin, D. G.; Ongmongkolkul, P.; Porter, F. C.; Rakitin, A. Y.; Andreassen, R.; Dubrovin, M. S.; Mancinelli, G.; Meadows, B. T.; Sokoloff, M. D.; Bloom, P. C.; Ford, W. T.; Gaz, A.; Nagel, M.; Nauenberg, U.; Smith, J. G.; Wagner, S. R.; Ayad, R.; Toki, W. H.; Jasper, H.; Karbach, T. M.; Petzold, A.; Spaan, B.; Kobel, M. J.; Schubert, K. R.; Schwierz, R.; Bernard, D.; Verderi, M.; Clark, P. J.; Playfer, S.; Watson, J. E.; Andreotti, M.; Bettoni, D.; Bozzi, C.; Calabrese, R.; Cecchi, A.; Cibinetto, G.; Fioravanti, E.; Franchini, P.; Luppi, E.; Munerato, M.; Negrini, M.; Petrella, A.; Piemontese, L.; Baldini-Ferroli, R.; Calcaterra, A.; de Sangro, R.; Finocchiaro, G.; Nicolaci, M.; Pacetti, S.; Patteri, P.; Peruzzi, I. M.; Piccolo, M.; Rama, M.; Zallo, A.; Contri, R.; Guido, E.; Lo Vetere, M.; Monge, M. R.; Passaggio, S.; Patrignani, C.; Robutti, E.; Tosi, S.; Bhuyan, B.; Prasad, V.; Lee, C. L.; Morii, M.; Adametz, A.; Marks, J.; Uwer, U.; Bernlochner, F. U.; Ebert, M.; Lacker, H. M.; Lueck, T.; Volk, A.; Dauncey, P. D.; Tibbetts, M.; Behera, P. K.; Mallik, U.; Chen, C.; Cochran, J.; Crawley, H. B.; Dong, L.; Meyer, W. T.; Prell, S.; Rosenberg, E. I.; Rubin, A. E.; Gritsan, A. V.; Guo, Z. J.; Arnaud, N.; Davier, M.; Derkach, D.; Firmino da Costa, J.; Grosdidier, G.; Le Diberder, F.; Lutz, A. M.; Malaescu, B.; Perez, A.; Roudeau, P.; Schune, M. H.; Serrano, J.; Sordini, V.; Stocchi, A.; Wang, L.; Wormser, G.; Lange, D. J.; Wright, D. M.; Bingham, I.; Chavez, C. A.; Coleman, J. P.; Fry, J. R.; Gabathuler, E.; Gamet, R.; Hutchcroft, D. E.; Payne, D. J.; Touramanis, C.; Bevan, A. J.; Di Lodovico, F.; Sacco, R.; Sigamani, M.; Cowan, G.; Paramesvaran, S.; Wren, A. C.; Brown, D. N.; Davis, C. L.; Denig, A. G.; Fritsch, M.; Gradl, W.; Hafner, A.; Alwyn, K. E.; Bailey, D.; Barlow, R. J.; Jackson, G.; Lafferty, G. D.; Anderson, J.; Cenci, R.; Jawahery, A.; Roberts, D. A.; Simi, G.; Tuggle, J. M.; Dallapiccola, C.; Salvati, E.; Cowan, R.; Dujmic, D.; Sciolla, G.; Zhao, M.; Lindemann, D.; Patel, P. M.; Robertson, S. H.; Schram, M.; Biassoni, P.; Lazzaro, A.; Lombardo, V.; Palombo, F.; Stracka, S.; Cremaldi, L.; Godang, R.; Kroeger, R.; Sonnek, P.; Summers, D. J.; Nguyen, X.; Simard, M.; Taras, P.; De Nardo, G.; Monorchio, D.; Onorato, G.; Sciacca, C.; Raven, G.; Snoek, H. L.; Jessop, C. P.; Knoepfel, K. J.; LoSecco, J. M.; Wang, W. F.; Corwin, L. A.; Honscheid, K.; Kass, R.; Morris, J. P.; Blount, N. L.; Brau, J.; Frey, R.; Igonkina, O.; Kolb, J. A.; Rahmat, R.; Sinev, N. B.; Strom, D.; Strube, J.; Torrence, E.; Castelli, G.; Feltresi, E.; Gagliardi, N.; Margoni, M.; Morandin, M.; Posocco, M.; Rotondo, M.; Simonetto, F.; Stroili, R.; Ben-Haim, E.; Bonneaud, G. R.; Briand, H.; Calderini, G.; Chauveau, J.; Hamon, O.; Leruste, Ph.; Marchiori, G.; Ocariz, J.; Prendki, J.; Sitt, S.; Biasini, M.; Manoni, E.; Rossi, A.; Angelini, C.; Batignani, G.; Bettarini, S.; Carpinelli, M.; Casarosa, G.; Cervelli, A.; Forti, F.; Giorgi, M. A.; Lusiani, A.; Neri, N.; Paoloni, E.; Rizzo, G.; Walsh, J. J.; Lopes Pegna, D.; Lu, C.; Olsen, J.; Smith, A. J. S.; Telnov, A. V.; Anulli, F.; Baracchini, E.; Cavoto, G.; Faccini, R.; Ferrarotto, F.; Ferroni, F.; Gaspero, M.; Li Gioi, L.; Mazzoni, M. A.; Piredda, G.; Renga, F.; Hartmann, T.; Leddig, T.; Schröder, H.; Waldi, R.; Adye, T.; Franek, B.; Olaiya, E. O.; Wilson, F. F.; Emery, S.; Hamel de Monchenault, G.; Vasseur, G.; Yèche, Ch.; Zito, M.; Allen, M. T.; Aston, D.; Bard, D. J.; Bartoldus, R.; Benitez, J. F.; Cartaro, C.; Convery, M. R.; Dorfan, J.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Field, R. C.; Franco Sevilla, M.; Fulsom, B. G.; Gabareen, A. M.; Graham, M. T.; Grenier, P.; Hast, C.; Innes, W. R.; Kelsey, M. H.; Kim, H.; Kim, P.; Kocian, M. L.; Leith, D. W. G. S.; Li, S.; Lindquist, B.; Luitz, S.; Lynch, H. L.

    2011-03-01T23:59:59.000Z

    We report the results of a study of the exclusive charmless semileptonic decays, B???(')l?? and B????l??, undertaken with approximately 464×10? BB¯¯ pairs collected at the ?(4S) resonance with the BABAR detector. The analysis uses events in which the signal B decays are reconstructed with a loose neutrino reconstruction technique. We obtain partial branching fractions for B???l?? and B????l?? decays in three and 12 bins of q², respectively, from which we extract the f+(q²) form-factor shapes and the total branching fractions B(B???l??)=(0.36±0.05stat±0.04syst)×10?? and B(B????l??)=(1.42±0.05stat±0.07syst)×10??. We also measure B(B+??'l??)=(0.24±0.08stat±0.03syst)×10??. We obtain values for the magnitude of the CKM matrix element |Vub| using three different QCD calculations.

  19. The Use of Subsurface Barriers to Support Treatment of Metals and Reduce the Flux of Tritium to Fourmile Branch at the Savannah River Site in South Carolina - 13358

    SciTech Connect (OSTI)

    Blount, Gerald; Thibault, Jeffrey; Wells, Leslie [Savannah River Nuclear Solutions LLC, 730-4B, Aiken, SC 29808 (United States)] [Savannah River Nuclear Solutions LLC, 730-4B, Aiken, SC 29808 (United States); Prater, Phillip [Department of Energy, Savannah River Site, Aiken, SC 29808 (United States)] [Department of Energy, Savannah River Site, Aiken, SC 29808 (United States)

    2013-07-01T23:59:59.000Z

    The Savannah River Site (SRS) produced tritium, plutonium, and special nuclear materials for national defense, medicine, and the space programs. Acidic groundwater plumes containing metals, metallic radionuclides, non-metallic radionuclides and tritium sourced from the F and H Area Seepage Basins have impacted the surface water of Fourmile Branch on SRS. Tritium releases from Fourmile Branch have impacted the water quality within areas of the Savannah River adjacent to the SRS, and this circumstance has been an ongoing regulatory concern. The F and H Area Seepage Basins operated until 1988 for the disposition of deionized acidic waste water from the F and H Separations Facilities. The waste water contained dilute nitric acid and low concentrations of non-radioactive metals, and radionuclides, with the major isotopes being Cs-137, Sr-90, U-235, U-238, Pu-239, Tc-99, I-129, and tritium. The tritium concentration in the waste water was relatively elevated because there is not a practicable removal method in water. The acid content of the waste water during the operational period of the basins was equal to 12 billion liters of nitric acid. The seepage basins were closed in 1988 and backfilled and capped by 1991. The plumes associated with the F and H basins cover an area of nearly 2.4 square kilometers (600 acres) and discharge along ?2,600 meters of Fourmile Branch. The acidic nature of the plumes and their overall discharge extent along the branch represent a large challenge with respect to reducing contaminant flux to Fourmile Branch. The introduction of nitric acid into the groundwater over a long time effectively reduced the retardation of metal migration from the basins to the groundwater and in the groundwater to Fourmile Branch, because most negatively charged surfaces on the aquifer materials were filled with hydrogen ion. Two large pump and treat systems were constructed in 1997 and operated until 2003 in an attempt to capture and control the releases to Fourmile Branch. The operating cost, including waste disposal, for the two systems was ?$1.3 M/month. Both systems employed reinjection of tritiated water up gradient of the extraction, and produced large quantities of waste from non-tritium isotopes and metals removal prior to reinjection. Both systems were determined to be ineffective and potentially detrimental with respect to limiting the flux of contaminants to Fourmile Branch. After it became apparent that there was very little benefit to continued operation of the systems, and the staggering cost of operations was recognized by the SRS and regulators, a new remedy was developed. The new system uses vertical subsurface barriers to redirect groundwater flow to limit the transport of contaminants to the stream. The barriers were constructed of acid resistant grout using deep soil mixing techniques. The grout mixture used low swelling clay, fly ash, and sodium hydroxide to form a pozzolana material with low permeability and low strength. The SRS and regulators agreed to a series of remedial goals, with the first goal to reduce tritium flux to the stream by 70% and bring constituents other than tritium to groundwater protection standards. (authors)

  20. Measurements of the Branching Fraction and Time-Dependent CP Asymmetries of B0 to J/Psi pi0 Decays.

    SciTech Connect (OSTI)

    Aubert, B.

    2005-08-04T23:59:59.000Z

    The authors present measurements of the branching fraction and time-dependent CP asymmetries in B{sup 0} {yields} J/{psi} {pi}{sup 0} decays based on (231.8 {+-} 2.6) x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC during the years 1999-2004. We obtain a branching fraction {Beta}(B{sup 0} {yields} J/{psi}{pi}{sup 0}) = (1.94 {+-} 0.22 (stat) {+-} 0.17 (syst)) x 10{sup -5}. They also measure the CP asymmetry parameters C = -0.21 {+-} 0.26 (stat) {+-} 0.09 (syst) and S = -0.68 {+-} 0.30 (stat) {+-} 0.04 (syst). All results presented in this paper are preliminary.

  1. Precise Branching Ratio Measurements of the Decays D0-->pi- pi+ pi0 and D0-->K- K+ pi0

    E-Print Network [OSTI]

    The BABAR Collaboration; B. Aubert

    2006-08-03T23:59:59.000Z

    Using 232 fb-1 of e+e- collision data recorded by the BaBar experiment, we measure the ratios of three-body Cabibbo-suppressed decay rates of the D^0 meson relative to that of the Cabibbo-favored decay: B(D0 --> pi- pi+ pi0)/ B(D0 --> K- pi+ pi0) = (10.59 +/- 0.06 +/- 0.13).10^{-2} and B(D0 --> K- K+ pi0)/ B(D0 --> K- pi+ pi0) = (2.37 +/- 0.03 +/- 0.04). 10^{-2}, where the errors are statistical and systematic respectively. The precisions of these measurements are significantly better than those of the current world average values.We note that the second result differs significantly from the current world average value. Using the PDG-2006 value for D0 --> K- pi+ pi0 branching fraction, we obtain, B(D0 --> pi- pi+ pi0) = (1.493 +/- 0.008 +/- 0.018 +/- 0.053). 10^{-2}, B(D0 --> K- K+ pi0) = (0.334 +/- 0.004 +/- 0.006 +/- 0.012). 10^{-2}, where the errors are statistical, systematic, and due to the uncertainty of B(D0 --> K- pi+ pi0). The average squared matrix elements for both of the singly Cabibbo-suppressed decays are roughly a factor of sin^2 \\theta_C smaller than that for the Cabibbo-favored decay and are therefore, in contrast to the corresponding two-body modes, consistent with the naive expectations.

  2. THE DUST BUDGET OF THE SMALL MAGELLANIC CLOUD: ARE ASYMPTOTIC GIANT BRANCH STARS THE PRIMARY DUST SOURCE AT LOW METALLICITY?

    SciTech Connect (OSTI)

    Boyer, M. L.; Gordon, K. D.; Meixner, M.; Sargent, B. A. [STScI, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Srinivasan, S. [UPMC-CNRS UMR7095, Institut d'Astrophysique de Paris, F-75014 Paris (France); Riebel, D. [Department of Physics and Astronomy, The Johns Hopkins University, Homewood Campus, Baltimore, MD 21218 (United States); McDonald, I. [Jodrell Bank Centre for Astrophysics, Alan Turing Building, University of Manchester, Manchester M13 9PL (United Kingdom); Van Loon, J. Th. [Astrophysics Group, Lennard-Jones Laboratories, Keele University, Staffordshire ST5 5BG (United Kingdom); Clayton, G. C. [Department of Physics and Astronomy, Louisiana State University, 233-A Nicholson Hall, Tower Dr., Baton Rouge, LA 70803-4001 (United States); Sloan, G. C., E-mail: mboyer@stsci.edu [Astronomy Department, Cornell University, Ithaca, NY 14853-6801 (United States)

    2012-03-20T23:59:59.000Z

    We estimate the total dust input from the cool evolved stars in the Small Magellanic Cloud, using the 8 {mu}m excess emission as a proxy for the dust-production rate (DPR). We find that asymptotic giant branch (AGB) and red supergiant (RSG) stars produce (8.6-9.5) Multiplication-Sign 10{sup -7} M{sub Sun} yr{sup -1} of dust, depending on the fraction of far-infrared sources that belong to the evolved star population (with 10%-50% uncertainty in individual DPRs). RSGs contribute the least (<4%), while carbon-rich AGB stars (especially the so-called extreme AGB stars) account for 87%-89% of the total dust input from cool evolved stars. We also estimate the dust input from hot stars and supernovae (SNe), and find that if SNe produce 10{sup -3} M{sub Sun} of dust each, then the total SN dust input and AGB input are roughly equivalent. We consider several scenarios of SN dust production and destruction and find that the interstellar medium (ISM) dust can be accounted for solely by stellar sources if all SNe produce dust in the quantities seen around the dustiest examples and if most SNe explode in dense regions where much of the ISM dust is shielded from the shocks. We find that AGB stars contribute only 2.1% of the ISM dust. Without a net positive contribution from SNe to the dust budget, this suggests that dust must grow in the ISM or be formed by another unknown mechanism.

  3. The Upper Asymptotic Giant Branch of the Elliptical Galaxy Maffei 1, and Comparisons with M32 and NGC 5128

    E-Print Network [OSTI]

    T. J. Davidge

    2002-07-04T23:59:59.000Z

    Deep near-infrared images obtained with adaptive optics systems on the Gemini North and Canada-France-Hawaii telescopes are used to investigate the bright stellar content and central regions of the nearby elliptical galaxy Maffei 1. Stars evolving on the upper asymptotic giant branch (AGB) are resolved in a field 3 arcmin from the center of the galaxy. The locus of bright giants on the (K, H-K) color-magnitude diagram is consistent with a population of stars like those in Baade's Window reddened by E(H-K) = 0.28 +/- 0.05 mag. This corresponds to A_V = 4.5 +/- 0.8 mag, and is consistent with previous estimates of the line of sight extinction computed from the integrated properties of Maffei 1. The AGB-tip occurs at K = 20.0, which correponds to M_K = -8.7; hence, the AGB-tip brightness in Maffei 1 is comparable to that in M32, NGC 5128, and the bulges of M31 and the Milky-Way. The near-infrared luminosity functions (LFs) of bright AGB stars in Maffei 1, M32, and NGC 5128 are also in excellent agreement, both in terms of overall shape and the relative density of infrared-bright stars with respect to the fainter stars that dominate the light at visible and red wavelengths. It is concluded that the brightest AGB stars in Maffei 1, NGC 5128, M32, and the bulge of M31 trace an old, metal-rich population, rather than an intermediate age population. It is also demonstrated that Maffei 1 contains a distinct red nucleus, and this is likely the optical signature of low-level nuclear activity and/or a distinct central stellar population. Finally, there is an absence of globular clusters brighter than the peak of the globular cluster LF in the central 700 x 700 parsecs of Maffei 1.

  4. Evolution of asymptotic giant branch stars II. Optical to far-infrared isochrones with improved TP-AGB models

    E-Print Network [OSTI]

    Paola Marigo; Leo Girardi; Alessandro Bressan; Martin A. T. Groenewegen; Laura Silva; Gian Luigi Granato

    2008-02-11T23:59:59.000Z

    We present a large set of theoretical isochrones, whose distinctive features mostly reside on the greatly improved treatment of the thermally pulsing asymptotic giant branch (TP-AGB) phase. Essentially, we have coupled the TP-AGB tracks described in Paper I, at their stages of pre-flash quiescent H-shell burning, with the evolutionary tracks for the previous evolutionary phases from Girardi et al. (2000). Theoretical isochrones for any intermediate value of age and metallicity are then derived by interpolation in the grids. We take care that the isochrones keep, to a good level of detail, the several peculiarities present in these TP-AGB tracks. Theoretical isochrones are then converted to about 20 different photometric systems -- including traditional ground-based systems, and those of recent major wide-field surveys such as SDSS, OGLE, DENIS, 2MASS, UKIDSS, etc., -- by means of synthetic photometry applied to an updated library of stellar spectra, suitably extended to include C-type stars. Finally, we correct the predicted photometry by the effect of circumstellar dust during the mass-losing stages of the AGB evolution, which allows us to improve the results for the optical-to-infrared systems, and to simulate mid- and far-IR systems such as those of Spitzer and AKARI. Access to the data is provided both via a web repository of static tables (http://stev.oapd.inaf.it/dustyAGB07 and CDS), and via an interactive web interface (http://stev.oapd.inaf.it/cmd) that provides tables for any intermediate value of age and metallicity, for several photometric systems, and for different choices of dust properties.

  5. Self-Enrichment in Globular Clusters: Is There a Role for the Super-Asymptotic Giant Branch Stars?

    E-Print Network [OSTI]

    M. L. Pumo; F. D'Antona; P. Ventura

    2008-03-03T23:59:59.000Z

    In four globular clusters (GCs) a non negligible fraction of stars can be interpreted only as a very helium rich population. The evidence comes from the presence of a "blue" main sequence in $\\omega$ Cen and NGC 2808, and from the the very peculiar horizontal branch morphology in NGC 6441 and NGC 6388. Although a general consensus is emerging on the fact that self--enrichment is a common feature among GCs, the helium content required for these stars is Y$\\simgt$0.35, and it is difficult to understand how it can be produced without any --or, for $\\omega$ Cen, without a considerable--associated metal enhancement. We examine the possible role of super--AGB stars, and show that they may provide the required high helium. However, the ejecta of the most massive super--AGBs show a global CNO enrichment by a factor of $\\simeq$4, due to the dredge--out process occurring at the second dredge up stage. If these clusters show no evidence for this CNO enrichment, we can rule out that at least the most massive super--AGBs evolve into O--Ne white dwarfs and take part in the formation of the second generation stars. This latter hypothesis may help to explain the high number of neutron stars present in GCs. The most massive super--AGBs would in fact evolve into electron--capture supernovae. Their envelopes would be easily ejected out of the cluster, but the remnant neutron stars remain into the clusters, thanks to their small supernova natal kicks.

  6. Special Projects Branch

    E-Print Network [OSTI]

    Dear Mr. Krich; Joseph G. Giitter; S Troy Harris/lovington; James Ferl; Cty John Parker/nmed

    2006-01-01T23:59:59.000Z

    On June 6, 2005, you submitted a U.S. Department of Energy (DOE) report providing the basis for DOE’s cost estimate for dispositioning depleted uranium generated at your proposed uranium enrichment facility in

  7. Measurement of the B0 ---> Psi (2S) Lambda0 Branching Fraction on BaBar at the Stanford Linear Accelerator Center (Abstract Only)

    SciTech Connect (OSTI)

    Olivas, Alexander Raymond, Jr.; /Colorado U.

    2005-11-16T23:59:59.000Z

    The decays of B{sup 0} mesons to hadronic final states remains a rich area of physics on BaBar. Not only do the c{bar c}-K final states (e.g. B{sup 0} {yields} {psi}(2S)K{sup 0}) allow for the measurement of CP Violation, but the branching fractions provide a sensitive test of the theoretical methods used to account for low energy non-perturbative QCD effects. They present the measurement of the branching fraction for the decay B{sup 0} {yields} {psi}(2S)K{sub s}. The data set consists of 88.8 {+-} 1.0 x 10{sup 6} B{bar b} pairs collected on the e{sup +}e{sup -} {yields} {Upsilon}(4S) resonance on BaBar/PEP-II at the Stanford Linear Accelerator Center (SLAC). This analysis features a modification of present cuts, with respect to those published so far on BaBar, on the K{sub S} {yields} {pi}{sup +}{pi}{sup -} and {psi}(2S) {yields} J/{psi}{pi}{sup +}{pi}{sup -} which aim at reducing the background while keeping the signal intact. Various data selection criteria are studied for the lepton modes (e{sup +}e{sup -} and {mu}{sup +}{mu}{sup -}) of the J/{psi} and {psi}(2S) to improve signal purity as well as study the stability of the resultant branching fractions.

  8. Measurement of Branching Fractions and Resonance Contributions for B0 -> D0bar K+ pi- and Search for B0 -> D0 K+ pi- Decays

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-09-30T23:59:59.000Z

    Using 226 million {Upsilon}(4S) {yields} B{bar B} events collected with the BABAR detector at the PEp-II e{sup +}e{sup -} storage ring at the Stanford Linear Accelerator Center, they measure the branching fraction for B{sup 0} {yields} {bar D}{sup 0}K{sup +}{pi}{sup -}, excluding B{sup 0} {yields} D*{sup -}K{sup +}, to be {Beta}(B{sup 0} {yields} {bar D}{sup 0}K{sup +}{pi}{sup -}) = 88 {+-} 15 {+-} 9 x 10{sup -6}. They observe B{sup 0} {yields} {bar D}{sup 0}K*(892){sup 0} and B{sup 0} {yields} D*{sub 2}(2460){sup -}K{sup +} contributions. The ratio of branching fractions {Beta}(B{sup 0} {yields} D*{sup -} K{sup +})/{Beta}(B{sup 0} {yields} D*{sup -}{pi}{sup +}) = (7.76 {+-} 0.34 {+-} 0.29)% is measured separately. The branching fraction for the suppressed mode B{sup 0} {yields} D{sup 0}K{sup +}{pi}{sup -} is {Beta}(B{sup 0} {yields} D{sup 0}K{sup +}{pi}{sup -}) < 19 x 10{sup -6} at the 90% confidence level.

  9. Precision measurement of the branching fractions of J/psi -> pi+pi-pi0 and psi' -> pi+pi-pi0

    E-Print Network [OSTI]

    BESIII Collaboration; M. Ablikim; M. N. Achasov; D. J. Ambrose; F. F. An; Q. An; Z. H. An; J. Z. Bai; R. B. F. Baldini Ferroli; Y. Ban; J. Becker; N. Berger; M. B. Bertani; J. M. Bian; E. Boger; O. Bondarenko; I. Boyko; R. A. Briere; V. Bytev; X. Cai; A. C. Calcaterra; G. F. Cao; J. F. Chang; G. Chelkov; G. Chen; H. S. Chen; J. C. Chen; M. L. Chen; S. J. Chen; Y. Chen; Y. B. Chen; H. P. Cheng; Y. P. Chu; D. Cronin-Hennessy; H. L. Dai; J. P. Dai; D. Dedovich; Z. Y. Deng; G. Denig; I. Denysenko; M. Destefanis; W. M. Ding Ding; Y. Ding; L. Y. Dong; M. Y. Dong; S. X. Du; J. Fang; S. S. Fang; L. Fava; F. Feldbauer; C. Q. Feng; C. D. Fu; J. L. Fu; Y. Gao; C. Geng; K. Goetzen; W. X. Gong; M. Greco; M. H. Gu; Y. T. Gu; Y. H. Guan; A. Q. Guo; L. B. Guo; Y. P. Guo; Y. L. Han; X. Q. Hao; F. A. Harris; K. L. He; M. He; Z. Y. He; T. Held; Y. K. Heng; Z. L. Hou; H. M. Hu; J. F. Hu; T. Hu; B. Huang; G. M. Huang; J. S. Huang; X. T. Huang; Y. P. Huang; T. Hussain; C. S. Ji; Q. Ji; X. B. Ji; X. L. Ji; L. K. Jia; L. L. Jiang; X. S. Jiang; J. B. Jiao; Z. Jiao; D. P. Jin; S. Jin; F. F. Jing; N. Kalantar-Nayestanaki; M. Kavatsyuk; W. Kuehn; W. Lai; J. S. Lange; J. K. C. Leung; C. H. Li; Cheng Li; Cui Li; D. M. Li; F. Li; G. Li; H. B. Li; J. C. Li; K. Li; Lei Li; N. B. Li; Q. J. Li; S. L. Li; W. D. Li; W. G. Li; X. L. Li; X. N. Li; X. Q. Li; X. R. Li; Z. B. Li; H. Liang; Y. F. Liang; Y. T. Liang; G. R. Liao; X. T. Liao; B. J. Liu; B. J. Liu; C. L. Liu; C. X. Liu; C. Y. Liu; F. H. Liu; Fang Liu; Feng Liu; H. Liu; H. B. Liu; H. H. Liu; H. M. Liu; H. W. Liu; J. P. Liu; K. Liu; K. Liu; K. Y. Liu; S. B. Liu; X. Liu; X. H. Liu; Y. B. Liu; Yong Liu; Z. A. Liu; Zhiqiang Liu; Zhiqing Liu; H. Loehner; G. R. Lu; H. J. Lu; J. G. Lu; Q. W. Lu; X. R. Lu; Y. P. Lu; C. L. Luo; M. X. Luo; T. Luo; X. L. Luo; M. Lv; C. L. Ma; F. C. Ma; H. L. Ma; Q. M. Ma; S. Ma; T. Ma; X. Y. Ma; F. E. Maas; M. Maggiora; Q. A. Malik; H. Mao; Y. J. Mao; Z. P. Mao; J. G. Messchendorp; J. Min; T. J. Min; R. E. Mitchell; X. H. Mo; C. Motzko; N. Yu. Muchnoi; Y. Nefedov; I. B. Nikolaev; Z. Ning; S. L. Olsen; Q. Ouyang; S. P. Pacetti; J. W. Park; M. Pelizaeus; K. Peters; J. L. Ping; R. G. Ping; R. Poling; C. S. J. Pun; M. Qi; S. Qian; C. F. Qiao; X. S. Qin; Y. Qin; Z. H. Qin; J. F. Qiu; K. H. Rashid; G. Rong; X. D. Ruan; A. Sarantsev; J. Schulze; M. Shao; C. P. Shen; X. Y. Shen; H. Y. Sheng; M. R. Shepherd; X. Y. Song; S. Spataro; B. Spruck; D. H. Sun; G. X. Sun; J. F. Sun; S. S. Sun; X. D. Sun; Y. J. Sun; Y. Z. Sun; Z. J. Sun; Z. T. Sun; C. J. Tang; X. Tang; E. H. Thorndike; H. L. Tian; D. Toth; M. U. Ulrich; G. S. Varner; B. Wang; B. Q. Wang; K. Wang; L. L. Wang; L. S. Wang; M. Wang; P. Wang; P. L. Wang; Q. Wang; Q. J. Wang; S. G. Wang; X. F. Wang; X. L. Wang; Y. D. Wang; Y. F. Wang; Y. Q. Wang; Z. Wang; Z. G. Wang; Z. Y. Wang; D. H. Wei; Q. G. Wen; S. P. Wen; M. W. Werner; U. Wiedner; L. H. Wu; N. Wu; S. X. Wu; W. Wu; Z. Wu; L. G. Xia; Z. J. Xiao; Y. G. Xie; Q. L. Xiu; G. F. Xu; G. M. Xu; H. Xu; Q. J. Xu; X. P. Xu; Y. Xu; Z. R. Xu; F. Xue; Z. Xue; L. Yan; W. B. Yan; Y. H. Yan; H. X. Yang; T. Yang; Y. Yang; Y. X. Yang; H. Ye; M. Ye; M. H. Ye; B. X. Yu; C. X. Yu; J. S. Yu; S. P. Yu; C. Z. Yuan; W. L. Yuan; Y. Yuan; A. A. Zafar; A. Z. Zallo; Y. Zeng; B. X. Zhang; B. Y. Zhang; C. C. Zhang; D. H. Zhang; H. H. Zhang; H. Y. Zhang; J. Zhang; J. Q. Zhang; J. W. Zhang; J. Y. Zhang; J. Z. Zhang; L. Zhang; S. H. Zhang; T. R. Zhang; X. J. Zhang; X. Y. Zhang; Y. Zhang; Y. H. Zhang; Y. S. Zhang; Z. P. Zhang; Z. Y. Zhang; G. Zhao; H. S. Zhao; Jingwei Zhao; K. X. Zhao; Lei Zhao; Ling Zhao; M. G. Zhao; Q. Zhao; S. J. Zhao; T. C. Zhao; X. H. Zhao; Y. B. Zhao; Z. G. Zhao; A. Zhemchugov; B. Zheng; J. P. Zheng; Y. H. Zheng; Z. P. Zheng; B. Zhong; J. Zhong; L. Zhou; X. K. Zhou; X. R. Zhou; C. Zhu; K. Zhu; K. J. Zhu; S. H. Zhu; X. L. Zhu; X. W. Zhu; Y. M. Zhu; Y. S. Zhu; Z. A. Zhu; J. Zhuang; B. S. Zou; J. H. Zou; J. X. Zuo

    2012-02-09T23:59:59.000Z

    We study the decays of the J/psi and psi' mesons to pi+pi-pi0 using data samples at both resonances collected with the BES III detector in 2009. We measure the corresponding branching fractions with unprecedented precision and provide mass spectra and Dalitz plots. The branching fraction for J/psi -> pi+pi-pi0 is determined to be (2.137 +- 0.004 (stat.) +0.058-0.056 (syst.) +0.027-0.026 (norm.))*10-2, and the branching fraction for psi' -> pi+pi-pi0 is measured as (2.14 +- 0.03 (stat.) +0.08-0.07 (syst.) +0.09-0.08 (norm.))*10-4. The J/psi decay is found to be dominated by an intermediate rho(770) state, whereas the psi' decay is dominated by di-pion masses around 2.2 GeV/c2, leading to strikingly different Dalitz distributions.

  10. The 2004 IAPSAP/MPSA Pehr Edman Award was presented to Dr. Stephen Altschul, Computational Biology Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes of

    E-Print Network [OSTI]

    Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes. He is perhaps best known for his role in developing the BLAST and PSI_BLAST sequence database search

  11. SUPERNOVA EXPLOSIONS OF SUPER-ASYMPTOTIC GIANT BRANCH STARS: MULTICOLOR LIGHT CURVES OF ELECTRON-CAPTURE SUPERNOVAE

    SciTech Connect (OSTI)

    Tominaga, Nozomu [Department of Physics, Faculty of Science and Engineering, Konan University, 8-9-1 Okamoto, Kobe, Hyogo 658-8501 (Japan); Blinnikov, Sergei I. [Institute for Theoretical and Experimental Physics (ITEP), Moscow 117218 (Russian Federation); Nomoto, Ken'ichi, E-mail: tominaga@konan-u.ac.jp, E-mail: Sergei.Blinnikov@itep.ru, E-mail: nomoto@astron.s.u-tokyo.ac.jp [Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8583 (Japan)

    2013-07-01T23:59:59.000Z

    An electron-capture supernova (ECSN) is a core-collapse supernova (CCSN) explosion of a super-asymptotic giant branch (SAGB) star with a main-sequence mass M{sub MS} {approx} 7-9.5 M{sub Sun }. The explosion takes place in accordance with core bounce and subsequent neutrino heating and is a unique example successfully produced by first-principle simulations. This allows us to derive a first self-consistent multicolor light curve of a CCSN. Adopting the explosion properties derived by the first-principle simulation, i.e., the low explosion energy of 1.5 Multiplication-Sign 10{sup 50} erg and the small {sup 56}Ni mass of 2.5 Multiplication-Sign 10{sup -3} M{sub Sun }, we perform a multi-group radiation hydrodynamics calculation of ECSNe and present multicolor light curves of ECSNe of SAGB stars with various envelope masses and hydrogen abundances. We demonstrate that a shock breakout has a peak luminosity of L {approx} 2 Multiplication-Sign 10{sup 44} erg s{sup -1} and can evaporate circumstellar dust up to R {approx} 10{sup 17} cm for the case of carbon dust, that the plateau luminosity and plateau duration of ECSNe are L {approx} 10{sup 42} erg s{sup -1} and t {approx} 60-100 days, respectively, and that a plateau is followed by a tail with a luminosity drop by {approx}4 mag. The ECSN shows a bright and short plateau that is as bright as typical Type II plateau supernovae, and a faint tail that might be influenced by the spin-down luminosity of a newborn pulsar. Furthermore, the theoretical models are compared with ECSN candidates: SN 1054 and SN 2008S. We find that SN 1054 shares the characteristics of the ECSNe. For SN 2008S, we find that its faint plateau requires an ECSN model with a significantly low explosion energy of E {approx} 10{sup 48} erg.

  12. Measurements of CP-Violating Asymmetries and Branching Fractions in the Decays of B Mesons to Charged Pions and Kaons at the Babar Detector

    SciTech Connect (OSTI)

    Danielson, Morris Nicholas; /Princeton U.

    2006-04-10T23:59:59.000Z

    This dissertation describes the measurement of branching fractions and CP asymmetries in neutral B meson decays to charmless two-body final states of charged pions and kaons. CP violation is a poorly-constrained phenomenon in the Standard model (SM) of particle physics and had been studied only in the kaon system before the Babar and Belle experiments. The decay of the neutral B meson to charged pions and kaons is particularly useful for the study of CP violation because they can be related to the Unitarity Triangle angle {alpha}.

  13. Branching of the W(H4) Polytopes and Their Dual Polytopes under the Coxeter Groups W(A4) and W(H3) Represented by Quaternions

    E-Print Network [OSTI]

    Mehmet Koca; Nazife Ozdes Koca; Mudhahir Al-Ajmi

    2011-06-15T23:59:59.000Z

    4-dimensional H4 polytopes and their dual polytopes have been constructed as the orbits of the Coxeter-Weyl group W(H4) where the group elements and the vertices of the polytopes are represented by quaternions. Projection of an arbitrary W(H4) orbit into three dimensions is made preserving the icosahedral subgroup W(H3) and the tetrahedral subgroup W(A3), the latter follows a branching under the Coxeter group W(A4) . The dual polytopes of the semi-regular and quasi-regular H4 polytopes have been constructed.

  14. Branching fractions for chi_cJ -> p p-bar pi^0, p p-bar eta, and p p-bar omega

    E-Print Network [OSTI]

    CLEO Collaboration; P. U. E. Onyisi; J. L. Rosner; J. P. Alexander; D. G. Cassel; S. Das; R. Ehrlich; L. Fields; L. Gibbons; S. W. Gray; D. L. Hartill; B. K. Heltsley; J. M. Hunt; D. L. Kreinick; V. E. Kuznetsov; J. Ledoux; J. R. Patterson; D. Peterson; D. Riley; A. Ryd; A. J. Sadoff; X. Shi; W. M. Sun; J. Yelton; P. Rubin; N. Lowrey; S. Mehrabyan; M. Selen; J. Wiss; S. Adams; M. Kornicer; R. E. Mitchell; M. R. Shepherd; C. M. Tarbert; D. Besson; T. K. Pedlar; J. Xavier; D. Cronin-Hennessy; J. Hietala; P. Zweber; S. Dobbs; Z. Metreveli; K. K. Seth; T. Xiao; A. Tomaradze; S. Brisbane; J. Libby; L. Martin; A. Powell; P. Spradlin; G. Wilkinson; H. Mendez; J. Y. Ge; D. H. Miller; I. P. J. Shipsey; B. Xin; G. S. Adams; D. Hu; B. Moziak; J. Napolitano; K. M. Ecklund; J. Insler; H. Muramatsu; C. S. Park; E. H. Thorndike; F. Yang; S. Ricciardi; C. Thomas; M. Artuso; S. Blusk; R. Mountain; T. Skwarnicki; S. Stone; J. C. Wang; L. M. Zhang; G. Bonvicini; D. Cinabro; A. Lincoln; M. J. Smith; P. Zhou; J. Zhu; P. Naik; J. Rademacker; D. M. Asner; K. W. Edwards; J. Reed; K. Randrianarivony; A. N. Robichaud; G. Tatishvili; E. J. White; R. A. Briere; H. Vogel

    2010-05-28T23:59:59.000Z

    Using a sample of 25.9 million psi(2S) decays acquired with the CLEO-c detector at the CESR e^+e^- collider, we report branching fractions for the decays chi_cJ -> p p-bar pi^0, p p-bar eta, and p p-bar omega, with J=0,1,2. Our results for B(chi_cJ-> p p-bar pi^0) and B(chi_cJ-> p p-bar eta) are consistent with, but more precise than, previous measurements. Furthermore, we include the first measurement of B(chi_cJ-> p p-bar omega).

  15. Characterization Activities to Evaluate Chlorinated Solvent Discharges to Tims Branch from the A/M Area of the Savannah River Site

    SciTech Connect (OSTI)

    Jackson, D.G.

    2001-02-23T23:59:59.000Z

    The objective of this investigation was to identify those regions of plume outcrop along Tims Branch southeast of A/M Area and to establish fixed monitoring points along the seepline to evaluate proposed remediation needs and to support long-term monitoring activities in the vicinity of the seepline. The characterization approach employed in completing these tasks was dynamic and graded. Three stages of characterization were used to evaluate the outcrop region, with the results from each of the previous activities used to direct subsequent characterization.

  16. The Tip of the Red Giant Branch Distances to Type Ia Supernova Host Galaxies. III. NGC 4038/39 and NGC 5584

    E-Print Network [OSTI]

    Jang, In Sung

    2015-01-01T23:59:59.000Z

    We present the tip of the red giant branch (TRGB) distances to Type Ia supernova (SNe Ia) host galaxies NGC 4038/39 and NGC 5584. Based on the deep images constructed using archival Hubble Space Telescope data, we detect red giant branch stars in each galaxy. VI photometry of the resolved stars and corresponding I-band luminosity functions show the TRGB to be at I_{TRGB} = 27.67 \\pm 0.05 for NGC 4038/39 and I_{TRGB} = 27.77 \\pm 0.04 for NGC 5584. From these estimates, we determine the distance modulus to NGC 4038/39 to be (m-M)_0 = 31.67 \\pm 0.05 (random) \\pm 0.12 (systematic) (corresponding to a linear distance of 21.58 \\pm 0.50 \\pm 1.19 Mpc) and the distance modulus to NGC 5584 to be (m-M)_0 = 31.76 \\pm 0.04 (random) \\pm 0.12 (systematic) (corresponding to a linear distance of 22.49 \\pm 0.41 \\pm 1.24 Mpc). We derive a mean absolute maximum magnitude of SNe Ia of M_V = -19.29 \\pm 0.08 from the distance estimates of five SNe Ia (including two SNe in this study and three SNe Ia from our previous studies), and ...

  17. Improved Measurements of Branching Fractions for B0 -> pi+pi-, K+pi-, and Search for B0 -> K+K-

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-09-28T23:59:59.000Z

    We present preliminary measurements of branching fractions for the charmless two-body decays B{sup 0} {yields} {pi}{sup +}{pi}{sup -} and K{sup +}{pi}{sup -}, and a search for B{sup 0} {yields} K{sup +}K{sup -} using a data sample of approximately 227 million B{bar B} decays. Signal yields are extracted with a multi-dimensional maximum likelihood fit, and the efficiency is corrected for the effects of final-state radiation. We find the charge-averaged branching fractions (in units of 10{sup -6}): {Beta}(B{sup 0} {yields} {pi}{sup +}{pi}{sup -}) = 5.5 {+-} 0.4 {+-} 0.3; {Beta}(B{sup 0} {yields} K{sup +}{pi}{sup -}) = 19.2 {+-} 0.6 {+-} 0.6; and {Beta}(B{sup 0} {yields} K{sup +}K{sup -}) = < 0.40. The errors are statistical followed by systematic, and the upper limit on K{sup +}K{sup -} represents a confidence level of 90%.

  18. A Large Stellar Evolution Database for Population Synthesis Studies. III. Inclusion of the full Asymptotic Giant Branch phase and Web tools for stellar population analyses

    E-Print Network [OSTI]

    Daniel Cordier; Adriano Pietrinferni; Santi Cassisi; Maurizio Salaris

    2006-12-21T23:59:59.000Z

    Stellar evolution tracks and isochrones are key inputs for a wide range of astrophysical studies; in particular, they are essential to the interpretation of photometric and spectroscopic observations of resolved and unresolved stellar populations. We have made available to the astrophysical community a large, homogenous database of up-to-date stellar tracks and isochrones, and a set of programs useful in population synthesis studies. In this paper we first summarize the main properties of our stellar model database (BaSTI) already introduced in Pietrinferni et al. (2004) and Pietrinferni et al. (2006). We then discuss an important update of the database, i.e., the extension of all stellar models and isochrones until the end of the thermal pulses along the Asymptotic Giant Branch. This extension of the library is particularly relevant for stellar population analyses in the near-infrared, or longer wavelengths, where the contribution to the integrated photometric properties by cool and bright Asymptotic Giant Branch stars is significant. A few comparisons with empirical data are also presentend and briefly discussed. We then present three web-tools that allow an interactive access to the database, and make possible to compute user-specified evolutionary tracks, isochrones, stellar luminosity functions, plus synthetic Color-Magnitude-Diagrams and integrated magnitudes for arbitrary Star Formation Histories. All these web tools are available at the BaSTI database official site: http://www.oa-teramo.inaf.it/BASTI.

  19. Precise measurement of the branching fractions for B s 0 ? D s ( * ) + D s ( * ) ? and first measurement of the D s * + D s * ? polarization using e + e ? collisions

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Esen, S.; Schwartz, A. J.; Aihara, H.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Belous, K.; Bhuyan, B.; Bozek, A.; Bra?ko, M.; Browder, T. E.; Chekelian, V.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, I.-S.; Cho, K.; Choi, Y.; Dalseno, J.; Danilov, M.; Doležal, Z.; Drutskoy, A.; Eidelman, S.; Feindt, M.; Gaur, V.; Haba, J.; Hara, T.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. O.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Koblitz, S.; Kodyš, P.; Korpar, S.; Kouzes, R. T.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumita, T.; Kwon, Y.-J.; Lee, S.-H.; Li, J.; Li, Y.; Libby, J.; Liu, C.; Liu, Y.; Liventsev, D.; Louvot, R.; McOnie, S.; Miyata, H.; Mizuk, R.; Mohapatra, D.; Moll, A.; Muramatsu, N.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Ng, C.; Nishida, S.; Nishimura, K.; Nitoh, O.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Onuki, Y.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Pedlar, T. K.; Pestotnik, R.; Petri?, M.; Piilonen, L. E.; Röhrken, M.; Ryu, S.; Sakai, Y.; Santel, D.; Santelj, L.; Sanuki, T.; Sato, Y.; Schneider, O.; Schwanda, C.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shibata, T.-A.; Shiu, J.-G.; Shwartz, B.; Sibidanov, A.; Simon, F.; Smerkol, P.; Sohn, Y.-S.; Sokolov, A.; Solovieva, E.; Stani?, S.; Stari?, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Tsuboyama, T.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Vahsen, S. E.; Vanhoefer, P.; Varner, G.; Wang, C. H.; Wang, M.-Z.; Wang, P.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamaoka, J.; Yamashita, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.

    2013-02-01T23:59:59.000Z

    We have made a precise measurement of the absolute branching fractions of B?s?D(*)?sD(*)?s decays using 121.4 fb?¹ of data recorded by the Belle experiment running at the ?(5S) resonance. The results are B(B?s?D?sD?s)=(0.58+0.11??.??±0.13)%, B(B?s?D*±sD?s)=(1.76+0.23??.??±0.40)%, and B(B?s?D*?sD*?s)=(1.98+0.33+0.52??.????.??)%; the sum is B(B?s?D(*)?sD(*)?s)=(4.32+0.42+1.04??.????.??)%. Assuming B?s?D(*)?sD(*)?s saturates decays to CP-even final states, the branching fraction constrains the ratio ??s/cos????, where ??s is the difference in widths between the two Bs–B¯¯¯s mass eigenstates, and ??? is the CP-violating phase in Bs–B¯¯¯s mixing. We also measure for the first time the longitudinal polarization fraction of B?s?D(*)?sD(*)?s; the result is 0.06+0.18??.??±0.03.

  20. X-ray resonant magnetic scattering and x-ray magnetic circular dichroism branching ratios, L[subscript 3] / L[subscript 2], for heavy rare earths

    SciTech Connect (OSTI)

    Lee, Yongbin; Kim, Jong-Woo; Goldman, Alan I.; Harmon, Bruce N. (Iowa State)

    2010-07-19T23:59:59.000Z

    In this study we have used first principles electronic structure methods to investigate the detailed contributions to the L{sub 3}/L{sub 2} branching ratio in the heavy rare earth elements. The calculations use the full potential, relativistic, linear augmented plane wave method with the LSDA+U approach for consideration of the local 4f electronic orbitals. With no spin orbit coupling (SOC) in the conducting bands, and with the same radial function for the 2p{sub 3/2} and 2p{sub 1/2} core states, the branching ratio (BR) is exactly 1:-1 for the x-ray magnetic circular dichroism spectra of the ferromagnetic heavy rare earth metals. However, with full SOC the BR ranges from 1.5 to 6.0 in going from Gd to Er. The energy and spin dependence of the 5d radial functions are important. The results point to problems with modified atomic models which have been proposed to explain the BR. Recent x-ray resonant magentic scattering experiments on (Gd,Tb,Dy,Ho,Er,Tm)Ni{sub 2}Ge{sub 2} are discussed.

  1. Measurement of branching ratio and B0s lifetime in the decay B0s ? J/? f0(980) at CDF

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T [Helsinki Inst. of Phys.; Gonzalez, B Alvarez [Oviedo U.; Cantabria Inst. of Phys.; Amerio, S [INFN, Padua; Amidei, D [Michigan U.; Anastassov, A [Northwestern U.; Annovi, A [Frascati; Antos, J [Comenius U.; Apollinari, G [Fermilab; Appel, J A [Fermilab; Apresyan, A [Purdue U.; Arisawa, T [Waseda U.; Dubna, JINR

    2011-09-30T23:59:59.000Z

    We present a study of Bs0 decays to the CP-odd final state J/? f0(980) with J/? ? µ+µ- and f0(980) ? ?+?-. Using pp? collision data with an integrated luminosity of 3.8 fb-1 collected by the CDF II detector at the Tevatron we measure a Bs0 lifetime of ?(B0s ? J/? f0(980)) = 1.70-0.11+0.12(stat) ± 0.03(syst) ps. This is the first measurement of the Bs0} lifetime in a decay to a CP eigenstate and corresponds in the standard model to the lifetime of the heavy Bs0 eigenstate. We also measure the product of branching fractions of B0s ? J/? f0(980) and f0(980) ? ?+?- relative to the product of branching fractions of B0s ? J/?? and ??K+K- to be Rf0/? = 0.257 ± 0.020(stat) ± 0.014(syst), which is the most precise determination of this quantity to date.

  2. Branching Fraction for B+ -> pi0 l+ nu, Measured in Upsilon (4S) -> BBbar Events Tagged by B- -> D0 l- nubar (X) Decays

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-06-29T23:59:59.000Z

    We report a preliminary branching fraction of (1.80 {+-} 0.37{sub stat.} {+-} 0.23{sub syst.}) x 10{sup -4} for the charmless exclusive semileptonic B{sup +} {yields} {pi}{sup 0}{ell}{sup +}{nu} decay, where {ell} can be either a muon or an electron. This result is based on data corresponding to an integrated luminosity of 81 fb{sup -1} collected at the {Upsilon}(4S) resonance with the BABAR detector. The analysis uses B{bar B} events that are tagged by a B meson reconstructed in the semileptonic B{sup -} {yields} D{sup 0}{ell}{sup -}{bar {nu}}(X) decays, where X can be either a {gamma} or a {pi}{sup 0} from a D* decay.

  3. Results of the quarterly tritium survey of Fourmile Branch and its seeplines in the F- and H-Areas of SRS: September 1993

    SciTech Connect (OSTI)

    Dixon, K.L.; Rogers, V.A.; Looney, B.B.

    1994-06-01T23:59:59.000Z

    The Environmental Sciences Section (ESS) established a quarterly monitoring program of the Fourmile Branch (FMB) seepline down gradient from the F- and H-Area seepage basins. The program surveys and tracks changes in tritium, specific conductivity, and pH for the seepline water. Measurements from the sixth quarterly survey (September 1993) showed higher tritium and conductivity measurements and higher pH values (pH 5 - 6) than measurements from previous studies. Increased tritium concentrations and conductivity values, as compared to previous surveys, were attributed to decreased rainfall prior to the sampling event However, overall results of the tritium survey and stream monitoring data (Looney et al., 1993) suggest that the tritium plume is flushing from the FMB system.

  4. How I do Knowledge Transfer Prof Peter Walker

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    and public sector organisations. He has plenty of sound advice to offer about what makes such collaborations, providing air-tightness, and using low energy- consumption devices and renewable energy sources. However (formerly known as the Building Research Establishment) Delivering Renewable Materials for Low Energy

  5. The Logical Approach to Stack Typing Amal Ahmed David Walker

    E-Print Network [OSTI]

    Ahmed, Amal

    . In fact, we have already seen such migration: Grossman et al.'s Cyclone [10] uses Tofte and Talpin's [37 contribution is a logic for reasoning about ad- jacency and separation of memory blocks as well as aliasing

  6. N.W.WALKER RD. N.W. HOLLY ST.

    E-Print Network [OSTI]

    Chapman, Michael S.

    .......................................................... 7 Central Stores/Bioengineering Building 618 .......... 24 Cold Storage 628

  7. Direct-Current Resistivity Survey At Walker-Lane Transitional...

    Open Energy Info (EERE)

    Activity Date Usefulness useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  8. Thermal Gradient Holes At Walker-Lane Transitional Zone Region...

    Open Energy Info (EERE)

    Date Usefulness not useful DOE-funding Unknown Notes NOTE: These are theoreticalcomputer simulation tests of various methods on eight hypothetical 'model' basing-and-range...

  9. Modeling-Computer Simulations At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    previous seismic experiments and earthquake-monitoring projects, and data donated from mining, geothermal, and petroleum companies. We also collected (May 2002 and August 2004) two...

  10. Geothermal Literature Review At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    previous seismic experiments and earthquake-monitoring projects, and data donated from mining, geothermal, and petroleum companies. We also collected (May 2002 and August 2004) two...

  11. Analysis of Transient Heating of Phosphor Coatings D. Greg Walker

    E-Print Network [OSTI]

    Walker, D. Greg

    there is direct optical access to the test surface, there are no emissivity issues, and scattered or reflected at understanding stresses induced in proton-beam targets for neutron spallation showed temperature rises of about

  12. Dr. Ronald A. Walker W-255K Olmsted Building

    E-Print Network [OSTI]

    Walker, Ronald A.

    Penn State Harrisburg 777 West Harrisburg Pike Middletown, PA 17057 Phone: 717-948-6673 E Professor, Penn State Harrisburg, Middletown, PA, 2007-present Visiting Assistant Professor, Juniata College Professor, Penn State Harrisburg, Middletown, PA · 10 semesters of teaching experience encompassing 27

  13. Walker Institute for Climate System Research Research Highlights

    E-Print Network [OSTI]

    Lucarini, Valerio

    Director's outlook 3 About us 4 Impacts and consequences A changing climate for Africa 6 Renewable energy Reflecting the Sun's energy to cool the planet 36 Our people 38 #12;3 Director's outlook I am very pleased and you can see a selection of our research here. The recent UK Climate Change Risk Assessment and the UN

  14. Walker Institute for Climate System Research Research Highlights

    E-Print Network [OSTI]

    Lucarini, Valerio

    . The UK act calls for national risk assessments and for bodies such as water and energy utilities Director's outlook 3 About us 4 Understanding 7 African rainfall 8 Climate variability and change;3 Director's outlook Welcome to our first issue of Research Highlights. This publication gives you

  15. Department of Mechanical Engineering Spring 2012 Motorized Rolling Walker

    E-Print Network [OSTI]

    Demirel, Melik C.

    with and without power Battery performed as desired, providing approximately 4 hours of use No yielding

  16. 1 00/XXXX Crown copyright Gilbert Walker: A pioneer of

    E-Print Network [OSTI]

    Lucarini, Valerio

    was hearing cannon fired in Sheffield for the repeal of the Corn Laws in 1839 1844 to 1848, went and Surveyor to the Croydon Local Board of Health In 1888, Thomas was responsible for the construction

  17. October 11, 2006 Mr. Mark Walker, Director of Public Affairs

    E-Print Network [OSTI]

    Planning Team (SBT) and Board present to the Council and BPA a revised project and subbasin budget request projects as well as adding the Council-required three-step planning process for the proposed Walla Walla for expense projects in the Asotin, Tucannon, Lower Snake and Walla Walla subbasin and while additional

  18. Geographic Information System At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    systems References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of Basin And Range...

  19. Data Acquisition-Manipulation At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    References D. D. Blackwell, K. W. Wisian, M. C. Richards, Mark Leidig, Richard Smith, Jason McKenna (2003) Geothermal Resource Analysis And Structure Of Basin And Range...

  20. Isotopic Analysis At Walker-Lane Transitional Zone Region (Kennedy...

    Open Energy Info (EERE)

    useful regional reconnaissance DOE-funding Unknown Notes The correspondence of helium isotope ratios and active transtensional deformation indicates a deformation-enhanced...

  1. Trace Element Analysis At Walker-Lane Transitional Zone Region...

    Open Energy Info (EERE)

    diagnostic lithogeochemical tool for geothermal exploration, the analysis of lithium and other elements in tufa deposits could serve as exploration guides for hot spring...

  2. A Method for Creating Collaborative Mobile Learning Trails Kevin Walker

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    or exhibit of interest. Introduction This research explores the use of mobile technology to create project; · the Mobile Learning in Informal Science Settings project; · the Philosophy of Technology hypotheses? · How does the use of web-linked mobile technology change the process of the above activities

  3. Chemistry Publications 2007 1. Palmer, MH; Walker, IC

    E-Print Network [OSTI]

    Greenaway, Alan

    interaction methods CHEMICAL PHYSICS, 2007, 340, 158-170 2. Leyva-Bailen, P; Powell, AV; Vaqueiro, P acid bases JOURNAL OF CHEMICAL PHYSICS, 2007, 127, 174309 4. Smith, KJ; Baillie, GS; Hyde, EI; Li, X

  4. [U.S. Fish and Wildlife Service letterhead] Mark Walker

    E-Print Network [OSTI]

    of the analysis. As with many preliminary review efforts, rolling up "readily available data" into a cost, detailed data that would be important in the type of cost-effectiveness analysis attempted here, data analysis techniques, and other inconsistencies in the cost/cost-effectiveness analysis

  5. Data Acquisition-Manipulation At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    David Blackwell, Gary Oppliger (2005) A Map Of Geothermal Potential For The Great Basin, Usa- Recognition Of Multiple Geothermal Environments Additional References Retrieved from...

  6. Geographic Information System At Walker-Lane Transitional Zone...

    Open Energy Info (EERE)

    David Blackwell, Gary Oppliger (2005) A Map Of Geothermal Potential For The Great Basin, Usa- Recognition Of Multiple Geothermal Environments Additional References Retrieved from...

  7. Artificial Tribotactic Microscopic Walkers: Walking Based on Friction Gradients

    E-Print Network [OSTI]

    Steimel, Joshua P.

    Friction, the resistive force between two surfaces sliding past each other, is at the core of a wide diversity of locomotion schemes. While such schemes are well described for homogeneous environments, locomotion based on ...

  8. aeneolamia postica walker: Topics by E-print Network

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    it is theoretically challenging (4 degrees of under-actuation), the mechanical design of the robot made it relatively easy to create controllers which allowed the robot to...

  9. ROBERT M. WALKER February 6, 1929-February 12, 2004

    E-Print Network [OSTI]

    Price, P. Buford

    many students carried weapons. He worked throughout this time as a paper boy, then as delivery boy School of Science, he took the entrance test and was admitted, largely on the strength of his essay a nuclear emulsion experiment across from where Bob was working, and Bob crossed paths with a number #12

  10. MHK Projects/Walker Bend Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant Jump to:LandownersLuther, Oklahoma:Energy InformationSEAREV Pays deTreat

  11. Geodetic Constraints on Contemporary Deformation in the Northern Walker

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489InformationFrenchtown,Jump to:Locations InEnergyGeocoded

  12. Walker County, Texas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwide Permit webpage JumpWaikane,

  13. Walker Lake Valley Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere IRaghuraji Agro IndustriesTown ofNationwide Permit webpage JumpWaikane,

  14. Walker-Lane Transition Zone Geothermal Region | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-fTri Global EnergyUtilityInformation Waiver of Preferential

  15. Magnetotellurics At Walker-Lane Transitional Zone Region (Pritchett, 2004)

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation, searchOfRose Bend < MHKconverter <WAGMadisonOpen EnergynotInformation|

  16. Geothermal Literature Review At Walker-Lane Transitional Zone Region

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005)Energy Information )Et Al.,Energy|

  17. Modeling-Computer Simulations (Walker, Et Al., 2005) | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov YouKizildere I Geothermal Pwer Plant JumpMarysville,Missoula, Montana: EnergyAnalysis of EnergySimulations

  18. Geographic Information System At Walker-Lane Transitional Zone Region

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005) | Open Energy(Blackwell, Et Al., 2003) | Open Energy

  19. Geographic Information System At Walker-Lane Transitional Zone Region

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005) | Open Energy(Blackwell, Et Al., 2003) | Open

  20. Geographic Information System At Walker-Lane Transitional Zone Region

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdf Jump1946865°,Park,2005) | Open Energy(Blackwell, Et Al., 2003) | Open(Laney,

  1. Branching fraction measurements of the color-suppressed decays B[over-bar] 0 to D[superscript (*)0?0, D[superscript (*)0]?, D[superscript (*)0]?, and D[superscript(*)0]?? and measurement of the polarization in the decay B[over-bar] 0-->D[superscript *0]?

    E-Print Network [OSTI]

    Cowan, Ray Franklin

    We report updated branching fraction measurements of the color-suppressed decays B? 0-->D0?0, D*0?0, D0?, D*0?, D0?, D*0?, D0??, and D*0??. We measure the branching fractions (×10-4): B(B? 0?D0?0)=2.69±0.09±0.13, B(B? ...

  2. Measurement of the branching fraction ${\\mathcal{B}}(\\Lambda^0_b\\rightarrow \\Lambda^+_c\\pi^-\\pi^+\\pi^-)$ at CDF

    SciTech Connect (OSTI)

    Aaltonen, T.; /Helsinki Inst. of Phys.; Alvarez Gonzalez, B.; /Oviedo U. /Cantabria Inst. of Phys.; Amerio, S.; /INFN, Padua; Amidei, D.; /Michigan U.; Anastassov, A.; /Northwestern U. /Fermilab; Annovi, A.; /Frascati; Antos, J.; /Comenius U.; Apollinari, G.; /Fermilab; Appel, J.A.; /Fermilab; Arisawa, T.; /Waseda U.; Artikov, A.; /Dubna, JINR /Texas A-M

    2011-12-01T23:59:59.000Z

    We report an analysis of the {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} decay in a data sample collected by the CDF II detector at the Fermilab Tevatron corresponding to 2.4 fb{sup -1} of integrated luminosity. We reconstruct the currently largest samples of the decay modes {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}(2595){sup +}{pi}{sup -} (with {Lambda}{sub c}(2595){sup +} {yields} {Lambda}{sub c}{sup +}{pi}{sup +}{pi}{sup -}), {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}(2625){sup +}{pi}{sup -} (with {Lambda}{sub c}(2625){sup +} {yields} {Lambda}{sub c}{sup +}{pi}{sup +}{pi}{sup -}), {Lambda}{sub b}{sup 0} {yields} {Sigma}{sub c}(2455){sup ++}{pi}{sup -}{pi}{sup -} (with {Sigma}{sub c}(2455){sup ++} {yields} {Lambda}{sub c}{sup +}{pi}{sup +}), and {Lambda}{sub b}{sup 0} {yields} {Sigma}{sub c}(2455)0{pi}{sup +}{pi}{sup -} (with {Sigma}{sub c}(2455)0 {yields} {Lambda}{sub c}{sup +}{pi}{sup -}) and measure the branching fractions relative to the {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -} branching fraction. We measure the ratio {Beta}({Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -})/ {Beta}({Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -})=3.04 {+-} 0.33(stat){sub -0.55}{sup +0.70}(syst) which is used to derive {Beta}({Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -})=(26.8{sub -11.2}{sup +11.9}) x 10{sup -3}.

  3. The Uncertainties in the 22Ne + alpha-capture Reaction Rates and the Production of the Heavy Magnesium Isotopes in Asymptotic Giant Branch Stars of Intermediate Mass

    E-Print Network [OSTI]

    A. Karakas; M. Lugaro; M. Wiescher; J. Goerres; C. Ugalde

    2006-01-27T23:59:59.000Z

    We present new rates for the 22Ne(alpha, n)25Mg and 22Ne(alpha,gamma)26Mg reactions, with uncertainties that have been considerably reduced compared to previous estimates, and we study how these new rates affect the production of the heavy magnesium isotopes in models of intermediate mass Asymptotic Giant Branch (AGB) stars of different initial compositions. All the models have deep third dredge-up, hot bottom burning and mass loss. Calculations have been performed using the two most commonly used estimates of the 22Ne + alpha rates as well as the new recommended rates, and with combinations of their upper and lower limits. The main result of the present study is that with the new rates, uncertainties on the production of isotopes from Mg to P coming from the 22Ne + alpha-capture rates have been considerably reduced. We have therefore removed one of the important sources of uncertainty to effect models of AGB stars. We have studied the effects of varying the mass-loss rate on nucleosynthesis and discuss other uncertainties related to the physics employed in the computation of stellar structure, such as the modeling of convection, the inclusion of a partial mixing zone and the definition of convective borders. These uncertainties are found to be much larger than those coming from 22Ne + alpha-capture rates, when using our new estimates. Much effort is needed to improve the situation for AGB models.

  4. Measurements of branching fraction ratios and CP-asymmetries in suppressed B-? D(? K+?-)K- and B-? D(? K+?-)?- decays

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Aaltonen, T. [Helsinki Inst. of Physics; Gonzalez, Alvarez B. [Oviedo U., Cantabria Inst. of Phys.; Amerio, S. [INFN, Padua; Amidei, D. [Michigan U.; Anastassov, A. [Northwestern U.; Annovi, A. [Frascati; Antos, J [Comenius U.; Apollinari, G. [Fermilab; Appel, J. A [Fermilab; Apresyan, A. [Purdue; Arisawa, T. [Waseda U., Dubna, JINR

    2011-08-01T23:59:59.000Z

    We report the first reconstruction in hadron collisions of the suppressed decays B-? D(? K+?-)K- and B-? D(? K+?-)?- decays, sensitive to the CKM phase {gamma}, using data from 7 fb-1 of integrated luminosity collected by the CDF II detector at the Tevatron collider. We reconstruct a signal for the B-? D(? K+?-)K- suppressed mode with a significance of 3.2 standard deviations, and measure the ratios of the suppressed to favored branching fractions R(K) = [22.0 ± 8.6(stat) ± 2.6(syst)] x 10-3, R+(K) = [42.6 ± 13.7(stat) ± 2.8(syst)] x 10-3, R-(K) = [3.8 ± 10.3(stat) ± 2.7(syst)] x 10-3 as well as the direct CP-violating asymmetry A(K) = -0.82±0.44(stat)±0.09(syst) of this mode. Corresponding quantities for B- ? D(? K+?-)?- decay are also reported.

  5. Improved Measurements of Neutral B Decay Branching Fractions to K0s pi+ pi- and the Charge Asymmetry of B0 -> K*+ pi-

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-08-26T23:59:59.000Z

    The authors analyze the decay B{sup 0} {yields} K{sub S}{sup 0}{pi}{sup +}{pi}{sup -} using a sample of 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. A maximum likelihood fit finds the following branching fractions: {Beta}(B{sup 0} {yields} K{sup 0}{pi}{sup +}{pi}{sup -}) = (43.0 {+-} 2.3 {+-} 2.3) x 10{sup -6}, {Beta}(B{sup 0} {yields} f{sub 0}({yields} {pi}{sup +}{pi}{sup -})K{sup 0}) = (5.5 {+-} 0.7 {+-} 0.5 {+-} 0.3) x 10{sup -6} and {Beta}(B{sup 0} {yields} K*{sup +}{pi}{sup -}) = (11.0 {+-} 1.5 {+-} 0.5 {+-} 0.5) x 10{sup -6}. For these results, the first uncertainty is statistical, the second is systematic, and the third (if present) is due to the effect of interference from other resonances. They also measure the CP-violating charge asymmetry in the decay B{sup 0} {yields} K*{sup +}{pi}{sup -}, {Alpha}{sub K*{pi}} = -0.11 {+-} 0.14 {+-} 0.05.

  6. Half-lives and branchings for {\\beta}-delayed neutron emission for neutron-rich Co-Cu isotopes in the r-process

    E-Print Network [OSTI]

    Hosmer, P; Aprahamian, A; Arndt, O; Clement, R R C; Estrade, A; Farouqi, K; Kratz, K -L; Liddick, S N; Lisetskiy, A F; Mantica, P F; Möller, P; Mueller, W F; Montes, F; Morton, A C; Ouellette, M; Pellegrini, E; Pereira, J; Pfeiffer, B; Reeder, P; Santi, P; Steiner, M; Stolz, A; Tomlin, B E; Walters, W B; Wöhr, A; 10.1103/PhysRevC.82.025806

    2010-01-01T23:59:59.000Z

    The {\\beta} decays of very neutron-rich nuclides in the Co-Zn region were studied experimentally at the National Superconducting Cyclotron Laboratory using the NSCL {\\beta}-counting station in conjunction with the neutron detector NERO. We measured the branchings for {\\beta}-delayed neutron emission (Pn values) for 74Co (18 +/- 15%) and 75-77Ni (10 +/- 2.8%, 14 +/- 3.6%, and 30 +/- 24%, respectively) for the first time, and remeasured the Pn values of 77-79Cu, 79,81Zn, and 82Ga. For 77-79Cu and for 81Zn we obtain significantly larger Pn values compared to previous work. While the new half-lives for the Ni isotopes from this experiment had been reported before, we present here in addition the first half-life measurements of 75Co (30 +/- 11 ms) and 80Cu (170+110 -50 ms). Our results are compared with theoretical predictions, and their impact on various types of models for the astrophysical rapid neutron-capture process (r-process) is explored. We find that with our new data, the classical r-process model is bet...

  7. Measurement of the production fraction times branching fraction $\\boldsymbol{ f(b\\to\\Lambda_{b})\\cdot \\mathcal{B}(\\Lambda_{b}\\to J/\\psi \\Lambda)}$

    SciTech Connect (OSTI)

    Abazov, Victor Mukhamedovich; /Dubna, JINR; Abbott, Braden Keim; /Oklahoma U.; Acharya, Bannanje Sripath; /Tata Inst.; Adams, Mark Raymond; /Illinois U., Chicago; Adams, Todd; /Florida State U.; Alexeev, Guennadi D.; /Dubna, JINR; Alkhazov, Georgiy D.; /St. Petersburg, INP; Alton, Andrew K.; /Michigan U. /Augustana Coll., Sioux Falls; Alverson, George O.; /Northeastern U.; Alves, Gilvan Augusto; /Rio de Janeiro, CBPF; Ancu, Lucian Stefan; /Nijmegen U. /Fermilab

    2011-05-01T23:59:59.000Z

    The {Lambda}{sub b}(udb) baryon is observed in the decay {Lambda}{sub b} {yields} J/{psi}{Lambda} using 6.1 fb{sup -1} of p{bar p} collisions collected with the D0 detector at {radical}s = 1.96 TeV. The production fraction multiplied by the branching fraction for this decay relative to that for the decay B{sup 0} {yields} J/{psi}K{sub s}{sup 0} is measured to be 0.345 {+-} 0.034 (stat.) {+-} 0.033 (syst.) {+-} 0.003 (PDG). Using the world average value of f(b {yields} B{sup 0}) {center_dot} {Beta}(B{sup 0} {yields} J/{psi}K{sub s}{sup 0}) = (1.74 {+-} 0.08) x 10{sup -5}, they obtain f(b {yields} {Lambda}{sub b}) {center_dot} {Beta}({Lambda}{sub b} {yields} J/{psi}{Lambda}) = (6.01 {+-} 0.60 (stat.) {+-} 0.58 (syst.) {+-} 0.28 (PDG)) x 10{sup -5}. This measurement represents an improvement in precision by about a factor of three with respect to the current world average.

  8. Europium Isotope Ratios in s-Process-Element-Enhanced, Metal-Poor Stars: A New Probe of the 151Sm Branching

    E-Print Network [OSTI]

    Wako Aoki; Sean G. Ryan; Nobuyuki Iwamoto; Timothy C. Beers; John E. Norris; Hiroyasu Ando; Toshitaka Kajino; Grant J. Mathews; Masayuki Y. Fujimoto

    2003-06-26T23:59:59.000Z

    We report on the first measurement of the Eu isotope fractions (151Eu and 153Eu) in s-process-element-enhanced, metal-poor stars. We use these ratios to investigate the 151Sm branching of s-process nucleosynthesis. The measurement was made by detailed study of Eu II lines that are significantly affected by hyperfine splitting and isotope shifts in spectra of the carbon-rich, very metal-poor stars LP625-44 and CS31062-050, observed with the Subaru Telescope High Dispersion Spectrograph. The 151Eu fractions [fr(151Eu) = 151Eu/(151Eu+153Eu)] derived for LP625-44 and CS31062-050 are 0.60 and 0.55, respectively, with uncertainties of about +/- 0.05. These values are higher than found in solar-system material, but agree well with the predictions of recent s-process models. We derive new constraints on the temperature and neutron density during the s-process based on calculations of pulsed s-process models for the 151Eu fraction.

  9. Study of Branching Fractions and CP-Violating Asymmetries in B Meson Decays to Rho And Pion Final State with the BABAR Detector

    SciTech Connect (OSTI)

    Wu, Jinwei; /Wisconsin U., Madison

    2006-03-22T23:59:59.000Z

    We present measurements of branching fractions and CP-violating asymmetries in B-meson decays to {rho}{sup +}{pi}{sup 0}, {rho}{sup 0}{pi}{sup +} and {rho}{sup 0}{pi}{sup 0}. The data sample comprises 89 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find the charge-averaged branching fractions {Beta}(B{sup +} {yields} {rho}{sup +}{pi}{sup 0}) = (10.9 {+-} 1.9(stat) {+-} 1.9(syst)) x 10{sup -6} and {Beta}(B{sup 0} {yields} {rho}{sup 0}{pi}{sup +}) = (9.5 {+-} 1.1 {+-} 0.9) x 10{sup -6}, and we set a 90% confidence-level upper limit {Beta}(B{sup 0} {yields} {rho}{sup 0}{pi}{sup 0}) < 2.9 x 10{sup -6}. We measure the charge asymmetries A{sub CP}{rho}{sup +}{pi}{sup 0} = 0.24 {+-} 0.16 {+-} 0.06 and {Alpha}{sub CP}{sup {rho}{sup 0}{pi}{sup +}} = -0.19 {+-} 0.11 {+-} 0.02. We also present the preliminary measurement of CP-violating asymmetries in B{sup 0} {yields} ({rho}{pi}){sup 0} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup 0} decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 213 million {Upsilon}(4S) {yields} B{bar B} decays, collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. This analysis extends the narrow-{rho} quasi-two-body approximation used in the previous analysis, by taking into account the interference between the {rho} resonances of the three charges. We measure 16 coefficients of the bilinear form factor terms occurring in the time-dependent decay rate of the B{sup 0} meson with the use of a maximum-likelihood fit. We derive the physically relevant quantities from these coefficients. We measure the direct CP-violation parameters {Alpha}{sub {rho}{pi}} = -0.088 {+-} 0.049 {+-} 0.013 and C = 0.34 {+-} 0.11 {+-} 0.05, where the first errors are statistical and the second systematic. For the mixing-induced CP-violation parameter we find S = -0.10 {+-} 0.14 {+-} 0.04, and for the dilution and strong phase shift parameters respectively, we obtain {Delta}C = 0.15 {+-} 0.11 {+-} 0.03 and {Delta}S = 0.22 {+-} 0.15 {+-} 0.03. For the angle {alpha} of the Unitarity Triangle we measure (113{sub -17}{sup +27} {+-} 6){sup o}; only a weak constraint is achieved at the significance level of more than two standard deviations. Finally, for the relative strong phase {delta}{sub +-} between the B{sup 0} {yields} {rho}{sup -}{pi}{sup +} and B{sup 0} {yields} {rho}{sup +}{pi}{sup -} transitions we find (-67{sub -31}{sup +28} {+-} 7){sup o}, with a similarly weak constraint at two standard deviations and beyond.

  10. Measurement of the B0 to pi l nu and B+ to pi0 l nu Branching Fractions and Determination of |Vub| in Upsilon(4S) to BBbar Events Tagged by a Fully Reconstructed B Meson

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-08-26T23:59:59.000Z

    The authors report preliminary measurements of the charmless exclusive semileptonic branching fractions of the B{sup 0} {yields} {pi}{sup -}{ell}{sup +}{nu} and B{sup +} {yields} {pi}{sup 0}{ell}{sup +}{nu} decays, based on 211 fb{sup -1} of data collected at the {Upsilon}(4S) resonance by the BABAR detector. In events in which the decay of one B meson to a hadronic final state is fully reconstructed, the semileptonic decay of the second B meson is identified by the detection of a charged lepton and a pion. They measure the partial branching fractions for B{sup 0} {yields} {pi}{sup -}{ell}{sup +}{nu} and B{sup +} {yields} {pi}{sup 0}{ell}{sup +}{nu} in three regions of the invariant mass squared of the lepton pair, and they obtain the total branching fractions {Beta}(B{sup 0} {yields} {pi}{sup -}{ell}{sup +}{nu}) = (1.14 {+-} 0.27{sub stat} {+-} 0.17{sub syst}) x 10{sup -4} and {Beta}(B{sup +} {yields} {pi}{sup 0}{ell}{sup +}{nu}) = (0.86 {+-} 0.22{sub stat} {+-} 0.11{sub syst}) x 10{sup -4}. Using isospin symmetry, they measure the combined total branching fraction {Beta}(B{sup 0} {yields} {pi}{sup -}{ell}{sup +}{nu}) = (1.28 {+-} 0.23{sub stat} {+-} 0.16{sub syst}) x 10{sup -4}. Theoretical predictions of the form-factor are used to determine the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element |V{sub ub}| = (3.7 {+-} 0.3{sub stat} {+-} 0.2{sub syst{sub -0.5FF}{sup +0.8}}) x 10{sup -3}, where the last uncertainty is due to the form-factor normalization.

  11. Comprehensive Sampling of Fourmile Branch and Its Seeplines in the F and H Area of SRS: June 1996 and March 1997

    SciTech Connect (OSTI)

    Koch, J.

    1998-10-30T23:59:59.000Z

    In June 1996, and March 1997 water samples were collected from Fourmile Branch (FMB) and its seeplines in the vicinity of the F- and H-Area Seepage basins. These sampling events represent a continuation of a series of semi-annual sampling events, which are now conducted annually and are aimed at characterizing the shallow groundwater outcropping into FMB and its wetlands. In the past, this groundwater has been shown to contain contaminants migrating from the F- and H-Area Seepage basins. The samples were analyzed for metals listed in Title 40, Code of Federal Regulations (CFR), Part 264, Appendix IX, various radionuclides, and selected inorganic constituents and parameters. Volatile organic compounds were not analyzed for in this sampling event since in previous events they were below detection limits, (ref. Dixon 1993, Dixon and Koch 1995).Results from both sampling events indicate that the seeplines of F and H Areas and FMB continue to be influenced by contaminants in groundwater originating from the capped seepage basins, but to a lesser degree than in the past. This suggests that the most concentrated portion of the contaminant plume may have flushed from the system.Contaminant concentrations measured during these two sampling events were compared to background samples collected during these two events and compared to primary drinking water standard (PDWS), secondary drinking water standards (SDWS), and maximum contaminant levels (MCL) enforceable in 1997. Results were also compared to the 1989 baseline measurements at corresponding locations.Using two separate statistical tests, the concentrations of analytes were compared to background samples. The purpose of the tests was to determine if concentrations of contaminants along the F- and H-Area seeplines were greater than background concentrations.

  12. Miscibility of blends of poly(methyl methacrylate) and oligodiols based on a bisphenol A nucleus and ethylene oxide or propylene oxide branches

    E-Print Network [OSTI]

    B. Jaffrennou; E. R. Soule; F. Mechin; J. Borrajo; J. P. Pascault; R. J. J. Williams

    2013-11-21T23:59:59.000Z

    Cloud-point curves of blends of poly(methyl methacrylate) (PMMA) with a series of oligodiols based on a bisphenol A nucleus and short branches of poly(ethylene oxide) or poly(propylene oxide) (BPA-EO or BPA-PO), and with PEO and PPO oligomers, were obtained using a light transmission device. Experimental results were fitted with the Flory- Huggins model using an interaction parameter depending on both temperature and composition. For PMMA/PEO and PMMA/PPO blends, the miscibility increased when increasing the size of the diol, due to the significant decrease in the entropic and enthalpic terms contributing to the interaction parameter. This reflected the decrease in the selfassociation of solvent molecules and in the contribution of terminal OH groups to the mismatching of solubility parameters. For PMMA/BPA-EO blends, a decrease of the entropic contribution to the interaction parameter when increasing the size of the oligodiol was also found. However, the effect was counterbalanced by the opposite contribution of combinatorial terms leading to cloud-point curves located in approximately the same temperature range. For PMMA/BPA-PO blends, the interaction parameter exhibited a very low value. In this case, the effect of solvent size was much more important on combinatorial terms than on the interaction parameter, leading to an increase in miscibility when decreasing the oligodiol size. For short BPA-PO oligodiols no phase separation was observed. The entropic contribution of the interaction parameter exhibited an inverse relationship with the size of the oligodiols, independent of the nature of the chains bearing the hydroxyls and the type of OH groups (primary or secondary). This indicates that the degree of self-association of solvent molecules through their OH terminal groups, was mainly determined by their relative sizes.

  13. EUROPIUM s-PROCESS SIGNATURE AT CLOSE-TO-SOLAR METALLICITY IN STARDUST SiC GRAINS FROM ASYMPTOTIC GIANT BRANCH STARS

    SciTech Connect (OSTI)

    Avila, Janaina N.; Ireland, Trevor R.; Holden, Peter [Research School of Earth Sciences, Australian National University, Canberra ACT 0200 (Australia); Lugaro, Maria [Monash Centre for Astrophysics, Monash University, Clayton, VIC 3800 (Australia); Gyngard, Frank; Zinner, Ernst [Laboratory for Space Sciences and the Department of Physics, Washington University, One Brookings Drive, St. Louis, MO 63130 (United States); Cristallo, Sergio [Osservatorio Astronomico di Collurania, INAF, via Maggini snc, Teramo I-64100 (Italy); Rauscher, Thomas, E-mail: janaina.avila@anu.edu.au [Centre for Astrophysics Research, School of Physics, Astronomy, and Mathematics, University of Hertfordshire, Hatfield AL10 9AB (United Kingdom)

    2013-05-01T23:59:59.000Z

    Individual mainstream stardust silicon carbide (SiC) grains and a SiC-enriched bulk sample from the Murchison carbonaceous meteorite have been analyzed by the Sensitive High Resolution Ion Microprobe-Reverse Geometry for Eu isotopes. The mainstream grains are believed to have condensed in the outflows of {approx}1.5-3 M{sub Sun} carbon-rich asymptotic giant branch (AGB) stars with close-to-solar metallicity. The {sup 151}Eu fractions [fr({sup 151}Eu) = {sup 151}Eu/({sup 151}Eu+{sup 153}Eu)] derived from our measurements are compared with previous astronomical observations of carbon-enhanced metal-poor stars enriched in elements made by slow neutron captures (the s-process). Despite the difference in metallicity between the parent stars of the grains and the metal-poor stars, the fr({sup 151}Eu) values derived from our measurements agree well with fr({sup 151}Eu) values derived from astronomical observations. We have also compared the SiC data with theoretical predictions of the evolution of Eu isotopic ratios in the envelope of AGB stars. Because of the low Eu abundances in the SiC grains, the fr({sup 151}Eu) values derived from our measurements show large uncertainties, in most cases being larger than the difference between solar and predicted fr({sup 151}Eu) values. The SiC aggregate yields a fr({sup 151}Eu) value within the range observed in the single grains and provides a more precise result (fr({sup 151}Eu) = 0.54 {+-} 0.03, 95% conf.), but is approximately 12% higher than current s-process predictions. The AGB models can match the SiC data if we use an improved formalism to evaluate the contribution of excited nuclear states in the calculation of the {sup 151}Sm(n, {gamma}) stellar reaction rate.

  14. Remedial investigation work plan for Chestnut Ridge Operable Unit 4 (Rogers Quarry/Lower McCoy Branch) at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    The Oak Ridge Y-12 Plant includes - 800 acres near the northeast comer of the reservation and adjacent to the city of Oak Ridge (Fig. 1-1). The plant is a manufacturing and developmental engineering facility that produced components for various nuclear weapons systems and provides engineering support to other Energy Systems facilities. More than 200 contaminated sites have been identified at the Y-12 Plant that resulted from past waste management practices. Many of the sites have operable units (OUs) based on priority and on investigative and remediation requirements. This Remedial Investigation RI work plan specifically addresses Chestnut Ridge OU 4. Chestnut Ridge OU 4 consists of Rogers Quarry and Lower McCoy Branch (MCB). Rogers Quarry, which is also known as Old Rogers Quarry or Bethel Valley Quarry was used for quarrying from the late 1940s or early 1950s until about 1960. Since that time, the quarry has been used for disposal of coal ash and materials from Y-12 production operations, including classified materials. Disposal of coal ash ended in July 1993. An RI is being conducted at this site in response to CERCLA regulations. The overall objectives of the RI are to collect data necessary to evaluate the nature and extent of contaminants of concern, support an Ecological Risk Assessment and a Human Health Risk Assessment, support the evaluation of remedial alternatives, and ultimately develop a Record of Decision for the site. The purpose of this work plan is to outline RI activities necessary to define the nature and extent of suspected contaminants at Chestnut Ridge OU 4. Potential migration pathways also will be investigated. Data collected during the RI will be used to evaluate the risk posed to human health and the environment by OU 4.

  15. Half-lives and branchings for {beta}-delayed neutron emission for neutron-rich Co-Cu isotopes in the r-process

    SciTech Connect (OSTI)

    Hosmer, P.; Estrade, A.; Montes, F.; Ouellette, M.; Pellegrini, E. [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States); Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States); Schatz, H. [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States); Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States); Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, Michigan 48824 (United States); Aprahamian, A. [Department of Physics and Joint Institute for Nuclear Astrophysics, University of Notre Dame, Notre Dame, Indiana 46556 (United States); Arndt, O.; Pfeiffer, B. [Institut fuer Kernchemie, Universitaet Mainz, Fritz-Strassmann Weg 2, D-55128 Mainz (Germany); HGF Virtuelles Institut fuer Kernstruktur und Nukleare Astrophysik (Germany); Clement, R. R. C.; Mueller, W. F.; Morton, A. C.; Pereira, J.; Santi, P.; Steiner, M.; Stolz, A. [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States); Farouqi, K. [Department of Astronomy and Astrophysics and Joint Institute for Nuclear Astrophysics, University of Chicago, Chicago, IL 60637 (United States); Kratz, K.-L. [HGF Virtuelles Institut fuer Kernstruktur und Nukleare Astrophysik (Germany); Max-Planck-Institut fuer Chemie (Otto-Hahn-Institut), J.-J.-Becherweg 27, D-55128 Mainz (Germany); Liddick, S. N.; Mantica, P. F. [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States); Department of Chemistry, Michigan State University, East Lansing, Michigan 48824 (United States)

    2010-08-15T23:59:59.000Z

    The {beta} decays of very neutron-rich nuclides in the Co-Zn region were studied experimentally at the National Superconducting Cyclotron Laboratory using the NSCL {beta}-counting station in conjunction with the neutron detector NERO. We measured the branchings for {beta}-delayed neutron emission (P{sub n} values) for {sup 74}Co (18{+-}15%) and {sup 75-77}Ni (10{+-}2.8%, 14{+-}3.6%, and 30{+-}24%, respectively) for the first time, and remeasured the P{sub n} values of {sup 77-79}Cu, {sup 79,81}Zn, and {sup 82}Ga. For {sup 77-79}Cu and for {sup 81}Zn we obtain significantly larger P{sub n} values compared to previous work. While the new half-lives for the Ni isotopes from this experiment had been reported before, we present here in addition the first half-life measurements of {sup 75}Co (30{+-}11 ms) and {sup 80}Cu (170{sub -50}{sup +110} ms). Our results are compared with theoretical predictions, and their impact on various types of models for the astrophysical rapid neutron-capture process (r-process) is explored. We find that with our new data, the classical r-process model is better able to reproduce the A=78-80 abundance pattern inferred from the solar abundances. The new data also influence r-process models based on the neutrino-driven high-entropy winds in core collapse supernovae.

  16. FRACTAL TREES WITH SIDE BRANCHING

    E-Print Network [OSTI]

    1998-01-10T23:59:59.000Z

    University of California, Los Angeles, CA 90095 ... plants and trees, root systems, bronchial systems, ... D as the power-law scaling exponent between num-.

  17. Updated measurements of absolute $D^+$ and $D^0$ hadronic branching fractions and $?(e^+e^-\\to D\\overline{D})$ at $E_\\mathrm{cm} = 3774$ MeV

    E-Print Network [OSTI]

    CLEO Collaboration; G. Bonvicini; D. Cinabro M. J. Smith; P. Zhou; P. Naik; J. Rademacker; K. W. Edwards; R. A. Briere; H. Vogel; J. L. Rosner; J. P. Alexander; D. G. Cassel; R. Ehrlich; L. Gibbons; S. W. Gray; D. L. Hartill; B. K. Heltsley; D. L. Kreinick; V. E. Kuznetsov; J. R. Patterson; D. Peterson; D. Riley; A. Ryd; A. J. Sadoff; X. Shi; W. M. Sun; S. Das; J. Yelton; P. Rubin; N. Lowrey; S. Mehrabyan; M. Selen; J. Wiss; J. Libby; M. Kornicer; R. E. Mitchell; D. Besson; T. K. Pedlar; D. Cronin-Hennessy; J. Hietala; S. Dobbs; Z. Metreveli; K. K. Seth; A. Tomaradze; T. Xiao; A. Powell; C. Thomas; G. Wilkinson; D. M. Asner; G. Tatishvili; J. Y. Ge; D. H. Miller; I. P. J. Shipsey; B. Xin; G. S. Adams; J. Napolitano; K. M. Ecklund; J. Insler; H. Muramatsu; L. J. Pearson; E. H. Thorndike; M. Artuso; S. Blusk; R. Mountain; T. Skwarnicki; S. Stone; J. C. Wang; L. M. Zhang; P. U. E. Onyisi

    2014-08-20T23:59:59.000Z

    Utilizing the full CLEO-c data sample of 818 pb$^{-1}$ of $e^+e^-$ data taken at the $\\psi(3770)$ resonance, we update our measurements of absolute hadronic branching fractions of charged and neutral $D$ mesons. We previously reportedresults from subsets of these data. Using a double tag technique we obtain branching fractions for three $D^0$ and six $D^+$ modes, including the reference branching fractions $\\mathcal{B} (D^0\\to K^-\\pi^+)=(3.934 \\pm 0.021 \\pm 0.061)\\%$ and $\\mathcal{B} (D^+ \\to K^- \\pi^+\\pi^+)=(9.224 \\pm 0.059 \\pm 0.157)\\%$. The uncertainties are statistical and systematic, respectively. In these measurements we include the effects of final-state radiation by allowing for additional unobserved photons in the final state, and the systematic errors include our estimates of the uncertainties of these effects. Furthermore, using an independent measurement of the luminosity, we obtain the cross sections $\\sigma(e^+e^-\\to D^0\\overline{D}{}^0)=(3.607\\pm 0.017 \\pm 0.056) \\ \\mathrm{nb}$ and $\\sigma(e^+e^-\\to D^+D^-)=(2.882\\pm 0.018 \\pm 0.042) \\ \\mathrm{nb}$ at a center of mass energy, $E_\\mathrm{cm} = 3774 \\pm 1$ MeV.

  18. Branching Fraction for B0 -> pi- l+ nu and Determination of |Vub| in Upsilon(4S) -> B0 B0bar Events Tagged by B0bar -> D(*)+ l- nubar

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-06-29T23:59:59.000Z

    We report preliminary results from a study of the charmless exclusive semileptonic decay B{sup 0} {yields} {pi}{sup -}{ell}{sup +}{nu} based on the data collected at the {Upsilon}(4S) resonance using the BABAR detector at SLAC. The analysis uses events in which the signal B meson recoils against a B meson that has been reconstructed in a semileptonic decay {bar B}{sup 0} {yields} D{sup (*)+}{ell}{sup -}{bar {nu}}. We extract the total branching fraction {Beta}(B{sup 0} {yields} {pi}{sup -}{ell}{sup +}{nu}) = (1.03 {+-} 0.25{sub stat.} {+-} 0.13{sub syst.}) x 10{sup -4} and the partial branching fractions in three bins of q{sup 2}, the invariant mass squared of the lepton-neutrino system. From the partial branching fractions and theoretical predictions for the form factors, we determine the magnitude of the CKM matrix element |V{sub ub}|. We find |V{sub ub}| = (3.3 {+-} 0.4{sub stat.} {+-} 0.2{sub syst.} {sub -0.4}{sup +0.8}FF) x 10{sup -3}, where the last error is due to normalization of the form factor.

  19. Greater-than-Class C low-level radioactive waste characterization. Appendix E-5: Impact of the 1993 NRC draft Branch Technical Position on concentration averaging of greater-than-Class C low-level radioactive waste

    SciTech Connect (OSTI)

    Tuite, P.; Tuite, K.; Harris, G. [Waste Management Group, Inc., Peekskill, NY (United States)

    1994-09-01T23:59:59.000Z

    This report evaluates the effects of concentration averaging practices on the disposal of greater-than-Class C low-level radioactive waste (GTCC LLW) generated by the nuclear utility industry and sealed sources. Using estimates of the number of waste components that individually exceed Class C limits, this report calculates the proportion that would be classified as GTCC LLW after applying concentration averaging; this proportion is called the concentration averaging factor. The report uses the guidance outlined in the 1993 Nuclear Regulatory Commission (NRC) draft Branch Technical Position on concentration averaging, as well as waste disposal experience at nuclear utilities, to calculate the concentration averaging factors for nuclear utility wastes. The report uses the 1993 NRC draft Branch Technical Position and the criteria from the Barnwell, South Carolina, LLW disposal site to calculate concentration averaging factors for sealed sources. The report addresses three waste groups: activated metals from light water reactors, process wastes from light-water reactors, and sealed sources. For each waste group, three concentration averaging cases are considered: high, base, and low. The base case, which is the most likely case to occur, assumes using the specific guidance given in the 1993 NRC draft Branch Technical Position on concentration averaging. To project future GTCC LLW generation, each waste category is assigned a concentration averaging factor for the high, base, and low cases.

  20. Measurement of the ratios of the branching fractions [Beta](B?[sigma] --> D?[sigma][pi]? [pi]?[pi]?)/[Beta](B? --> D?[pi]? [pi]?[pi]?) and [Beta](B?[sigma] --> D?[sigma][pi]?)/[Beta](B? --> D?[pi]? [pi]?[pi]?).

    E-Print Network [OSTI]

    Bolshov, Arkadiy

    2007-01-01T23:59:59.000Z

    We present the measurement of the ratios of branching fractions B... to B..., and B... to B... We analyze data taken with the CDF II detector that corresponds to an integrated luminosity of 355 pb - 1 in pp collisions at ...

  1. Interim Results from a Study of the Impacts of Tin (II) Based Mercury Treatment in a Small Stream Ecosystem: Tims Branch, Savannah River Site

    SciTech Connect (OSTI)

    Looney, Brian [Savannah River National Laboratory (SRNL); BryanJr., Larry [Savannah River Ecology Laboratory; Mathews, Teresa J [ORNL; Peterson, Mark J [ORNL; Roy, W Kelly [ORNL; Jett, Robert T [ORNL; Smith, John G [ORNL

    2012-03-01T23:59:59.000Z

    A research team is assessing the impacts of an innovative mercury treatment system in Tims Branch, a small southeastern stream. The treatment system, installed in 2007, reduces and removes inorganic mercury from water using tin(II) (stannous) chloride addition followed by air stripping. The system results in discharge of inorganic tin to the ecosystem. This screening study is based on historical information combined with measurements of contaminant concentrations in water, fish, sediment, biofilms and invertebrates. Initial mercury data indicate that first few years of mercury treatment resulted in a significant decrease in mercury concentration in an upper trophic level fish, redfin pickerel, at all sampling locations in the impacted reach. For example, the whole body mercury concentration in redfin pickerel collected from the most impacted pond decreased approximately 72% between 2006 (pre-treatment) and 2010 (post-treatment). Over this same period, mercury concentrations in the fillet of redfin pickerel in this pond were estimated to have decreased from approximately 1.45 {micro}g/g (wet weight basis) to 0.45 {micro}g/g - a decrease from 4.8x to 1.5x the current EPA guideline concentration for mercury in fillet (0.3 {micro}g/g). Thermodynamic modeling, scanning electron microscopy, and other sampling data for tin suggest that particulate tin (IV) oxides are a significant geochemical species entering the ecosystem with elevated levels of tin measured in surficial sediments and biofilms. Detectable increases in tin in sediments and biofilms extended approximately 3km from the discharge location. Tin oxides are recalcitrant solids that are relatively non-toxic and resistant to dissolution. Work continues to develop and validate methods to analyze total tin in the collected biota samples. In general, the interim results of this screening study suggest that the treatment process has performed as predicted and that the concentration of mercury in upper trophic level fish, as a surrogate for all of the underlying transport and transformation processes in a complex ecosystem, has declined as a direct result of the elimination of inorganic mercury inputs. Inorganic tin released to the ecosystem has been found in compartments where particles accumulate with notable levels measured in biofilms.

  2. Solvent dependent branching between C-I and C-Br bond cleavage following 266 nm excitation of CH{sub 2}BrI

    SciTech Connect (OSTI)

    Anderson, Christopher P.; Spears, Kenneth G.; Wilson, Kaitlynn R.; Sension, Roseanne J. [Department of Chemistry and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)] [Department of Chemistry and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States)

    2013-11-21T23:59:59.000Z

    It is well known that ultraviolet photoexcitation of halomethanes results in halogen-carbon bond cleavage. Each halogen-carbon bond has a dominant ultraviolet (UV) absorption that promotes an electron from a nonbonding halogen orbital (n{sub X}) to a carbon-halogen antibonding orbital (?*{sub C-X}). UV absorption into specific transitions in the gas phase results primarily in selective cleavage of the corresponding carbon-halogen bond. In the present work, broadband ultrafast UV-visible transient absorption studies of CH{sub 2}BrI reveal a more complex photochemistry in solution. Transient absorption spectra are reported spanning the range from 275 nm to 750 nm and 300 fs to 3 ns following excitation of CH{sub 2}BrI at 266 nm in acetonitrile, 2-butanol, and cyclohexane. Channels involving formation of CH{sub 2}Br + I radical pairs, iso-CH{sub 2}Br-I, and iso-CH{sub 2}I-Br are identified. The solvent environment has a significant influence on the branching ratios, and on the formation and stability of iso-CH{sub 2}Br-I. Both iso-CH{sub 2}Br-I and iso-CH{sub 2}I-Br are observed in cyclohexane with a ratio of ?2.8:1. In acetonitrile this ratio is 7:1 or larger. The observation of formation of iso-CH{sub 2}I-Br photoproduct as well as iso-CH{sub 2}Br-I following 266 nm excitation is a novel result that suggests complexity in the dissociation mechanism. We also report a solvent and concentration dependent lifetime of iso-CH{sub 2}Br-I. At low concentrations the lifetime is >4 ns in acetonitrile, 1.9 ns in 2-butanol and ?1.4 ns in cyclohexane. These lifetimes decrease with higher initial concentrations of CH{sub 2}BrI. The concentration dependence highlights the role that intermolecular interactions can play in the quenching of unstable isomers of dihalomethanes.

  3. FORMATION OF SiC GRAINS IN PULSATION-ENHANCED DUST-DRIVEN WIND AROUND CARBON-RICH ASYMPTOTIC GIANT BRANCH STARS

    SciTech Connect (OSTI)

    Yasuda, Yuki; Kozasa, Takashi, E-mail: yuki@antares-a.sci.hokudai.ac.jp [Department of Natural History Sciences, Faculty of Science, Hokkaido University, Sapporo 060-0810 (Japan)

    2012-02-01T23:59:59.000Z

    We investigate the formation of silicon carbide (SiC) grains in the framework of dust-driven wind around pulsating carbon-rich asymptotic giant branch (C-rich AGB) stars to reveal not only the amount but also the size distribution. Two cases are considered for the nucleation process: one is the local thermal equilibrium (LTE) case where the vibration temperature of SiC clusters T{sub v} is equal to the gas temperature as usual, and another is the non-LTE case in which T{sub v} is assumed to be the same as the temperature of small SiC grains. The results of the hydrodynamical calculations for a model with stellar parameters of mass M{sub *} = 1.0 M{sub Sun }, luminosity L{sub *} = 10{sup 4} L{sub Sun }, effective temperature T{sub eff} = 2600 K, C/O ratio = 1.4, and pulsation period P = 650 days show the following: in the LTE case, SiC grains condense in accelerated outflowing gas after the formation of carbon grains, and the resulting averaged mass ratio of SiC to carbon grains of {approx}10{sup -8} is too small to reproduce the value of 0.01-0.3, which is inferred from the radiative transfer models. On the other hand, in the non-LTE case, the formation region of the SiC grains is more internal and/or almost identical to that of the carbon grains due to the so-called inverse greenhouse effect. The mass ratio of SiC to carbon grains averaged at the outer boundary ranges from 0.098 to 0.23 for the sticking probability {alpha}{sub s} = 0.1-1.0. The size distributions with the peak at {approx}0.2-0.3 {mu}m in radius cover the range of size derived from the analysis of the presolar SiC grains. Thus, the difference between the temperatures of the small cluster and gas plays a crucial role in the formation process of SiC grains around C-rich AGB stars, and this aspect should be explored for the formation process of dust grains in astrophysical environments.

  4. THE TIP OF THE RED GIANT BRANCH DISTANCES TO TYPE Ia SUPERNOVA HOST GALAXIES. II. M66 AND M96 IN THE LEO I GROUP

    SciTech Connect (OSTI)

    Lee, Myung Gyoon; Jang, In Sung, E-mail: mglee@astro.snu.ac.kr, E-mail: isjang@astro.snu.ac.kr [Astronomy Program, Department of Physics and Astronomy, Seoul National University, Gwanak-gu, Seoul 151-742 (Korea, Republic of)

    2013-08-10T23:59:59.000Z

    M66 and M96 in the Leo I Group are nearby spiral galaxies hosting Type Ia supernovae (SNe Ia). We estimate the distances to these galaxies from the luminosity of the tip of the red giant branch (TRGB). We obtain VI photometry of resolved stars in these galaxies from F555W and F814W images in the Hubble Space Telescope archive. From the luminosity function of these red giants, we find the TRGB I-band magnitude to be I{sub TRGB} = 26.20 {+-} 0.03 for M66 and 26.21 {+-} 0.03 for M96. These values yield distance modulus (m - M){sub 0} = 30.12 {+-} 0.03(random) {+-} 0.12(systematic) for M66 and (m - M){sub 0} = 30.15 {+-} 0.03(random) {+-} 0.12(systematic) for M96. These results show that they are indeed the members of the same group. With these results we derive absolute maximum magnitudes of two SNe (SN 1989B in M66 and SN 1998bu in M96). V-band magnitudes of these SNe Ia are {approx}0.2 mag fainter than SN 2011fe in M101, one of the nearest recent SNe Ia. We also derive near-infrared magnitudes for SN 1998bu. Optical magnitudes of three SNe Ia (SN 1989B, SN 1998bu, and SN 2011fe) based on TRGB analysis yield a Hubble constant, H{sub 0} = 68.4 {+-} 2.6(random) {+-} 3.7(systematic) km s{sup -1} Mpc{sup -1}. This value is similar to the values derived from recent WMAP9 results, H{sub 0} = 69.32 {+-} 0.80 km s{sup -1} Mpc{sup -1}, and from Planck results, H{sub 0} = 67.3 {+-} 1.2 km s{sup -1} Mpc{sup -1}, but smaller than other recent determinations based on Cepheid calibration for SNe Ia luminosity, H{sub 0} = 74 {+-} 3 km s{sup -1} Mpc{sup -1}.

  5. INTERIM RESULTS FROM A STUDY OF THE IMPACTS OF TIN(II) BASED MERCURY TREATMENT IN A SMALL STREAM ECOSYSTEM: TIMS BRANCH, SAVANNAH RIVER SITE

    SciTech Connect (OSTI)

    Looney, B.; Bryan, L.; Mathews, T.

    2012-03-30T23:59:59.000Z

    Mercury (Hg) has been identified as a 'persistent, bioaccumulative and toxic' pollutant with widespread impacts throughout North America and the world (EPA. 1997a, 1997b, 1998a, 1998b, 2000). Although most of the mercury in the environment is inorganic Hg, a small proportion of total Hg is transformed through the actions of aquatic microbes into methylmercury (MeHg). In contrast to virtually all other metals, MeHg biomagnifies or becomes increasingly concentrated as it is transferred through aquatic food chains so that the consumption of mercury contaminated fish is the primary route of this toxin to humans. For this reason, the ambient water quality criterion (AWQC) for mercury is based on a fish tissue endpoint rather than an aqueous Hg concentration, as the tissue concentration (e.g., < 0.3 {mu}g/g fillet) is considered to be a more consistent indicator of exposure and risk (EPA, 2001). Effective mercury remediation at point-source contaminated sites requires an understanding of the nature and magnitude of mercury inputs, and also knowledge of how these inputs must be controlled in order to achieve the desired reduction of mercury contamination in biota necessary for compliance with AWQC targets. One of the challenges to remediation is that mercury body burdens in fish are more closely linked to aqueous MeHg than to inorganic Hg concentrations (Sveinsdottir and Mason 2005), but MeHg production is not easily predicted or controlled. At point-source contaminated sites, mercury methylation is not only affected by the absolute mercury load, but also by the form of mercury loaded. In addition, once MeHg is formed, the hydrology, trophic structure, and water chemistry of a given system affect how it is transformed and transferred through the food chain to fish. Decreasing inorganic Hg concentrations and loading may often therefore be a more achievable remediation goal, but has led to mixed results in terms of responses in fish bioaccumulation. A number of source control measures have resulted in rapid responses in lake or reservoir fisheries (Joslin 1994, Turner and Southworth 1999; Orihel et al., 2007), but examples of similar responses in Hg-contaminated stream ecosystems are less common. Recent work suggests that stream systems may actually be more susceptible to mercury bioaccumulation than lakes, highlighting the need to better understand the ecological drivers of mercury bioaccumulation in stream-dwelling fish (Chasar et al. 2009, Ward et al. 2010). In the present study we examine the response of fish to remedial actions in Tims Branch, a point-source contaminated stream on the Department of Energy's (DOE) Savannah River Site in Aiken, South Carolina. This second order stream received inorganic mercury inputs at its headwaters from the 1950s-2000s which contaminated the water, sediments, and biota downstream. In 2007, an innovative mercury removal system using tin (II) chloride (stannous chloride, SnCl{sub 2}) was implemented at a pre-existing air stripper. Tin(II) reduces dissolved Hg (II) to Hg (0), which is removed by the air stripper. During this process, tin(II) is oxidized to tin (IV) which is expected to precipitate as colloidal tin(IV) oxides and hydroxides, particulate materials with relatively low toxicity (Hallas and Cooney, 1981, EPA 2002, ATSDR, 2005). The objectives of the present research are to provide an initial assessment of the net impacts of the tin(II) based mercury treatment on key biota and to document the distribution and fate of inorganic tin in this small stream ecosystem after the first several years of operating a full scale system. To support these objectives, we collected fish, sediment, water, invertebrates, and biofilm samples from Tims Branch to quantify the general behavior and accumulation patterns for mercury and tin in the ecosystem and to determine if the treatment process has resulted in: (1) a measurable beneficial impact on (i.e., decrease of) mercury concentration in upper trophic level fish and other biota; this is a key environmental endpoint since reducing mercury concen

  6. Evidence for B+ to K0barK+ and B0 to K0K0bar, and Measurement of the Branching Fraction and Search for Direct CP Violation in B+ to K0pi+

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-07-12T23:59:59.000Z

    The authors present evidence for the b {yields} d penguin-dominated decays B{sup +} {yields} {bar K}{sup 0}K{sup +} and B{sup 0} {yields} K{sup 0}{bar K}{sup 0} with significances of 3.5 and 4.5 standard deviations, respectively. The results are based on a sample of 227 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} collider at SLAC. We measure the branching fractions {Beta}(B{sup +} {yields} {bar K}{sup 0}K{sup +}) = (1.5 {+-} 0.5 {+-} 0.1) x 10{sup -6} (< 2.4 x 10{sup -6}) and {Beta}(B{sup 0} {yields} K{sup 0}{bar K}{sup 0}) = (1.19{sub -0.35}{sup +0.40} {+-} 0.13) x 10{sup -6}, where the uncertainties are statistical and systematic, respectively, and the upper limit on the branching fraction for {bar K}{sup 0}K{sup +} is at the 90% confidence level. They also present improved measurements of the charge-averaged branching fraction {Beta}(B{sup +} {yields} K{sup 0}{pi}{sup +}) = (26.0 {+-} 1.3 {+-} 1.0) x 10{sup -6} and CP-violating charge asymmetry {Alpha}{sub CP} (K{sup 0}{pi}{sup +}) = -0.09 {+-} 0.05 {+-} 0.01, where the uncertainties are statistical and systematic, respectively.

  7. Remedial Investigation Report on Chestnut Ridge Operable Unit 2 (Filled Coal Ash Pond/Upper McCoy Branch) at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee. Volume 1. Main Text

    SciTech Connect (OSTI)

    Not Available

    1994-08-01T23:59:59.000Z

    This document is a report on the remedial investigation (RI) of Chestnut Ridge Operable Unit (OU) 2 at the Oak Ridge Y-12 Plant. Chestnut Ridge OU 2 consists of Upper McCoy Branch (UMB), the Filled Coal Ash Pond (FCAP), and the area surrounding the Sluice Channel formerly associated with coal ash disposal in the FCAP. Chestnut Ridge OU 2 is located within the U.S. Department of Energy`s (DOE`s) Oak Ridge Reservation in Anderson County, Tennessee, approximately 24 miles west of Knoxville. The pond is an 8.5-acre area on the southern slope of Chestnut Ridge, 0.5 mile south of the main Y-12 Plant and geographically separated from the Y-12 Plant by Chestnut Ridge. The elevation of the FCAP is {approximately} 950 ft above mean sea level (msl), and it is relatively flat and largely vegetated. Two small ponds are usually present at the northeast and northwest comers of the FCAP. The Sluice Channel Area extends {approximately}1000 ft from the northern margin of the FCAP to the crest of Chestnut Ridge, which has an elevation of {approximately}1100 ft above msl. The Sluice Channel Area is largely vegetated also. McCoy Branch runs from the top of Chestnut Ridge across the FCAP into Rogers Quarry and out of the quarry where it runs a short distance into Milton Hill Lake at McCoy Embayment, termed UMB. The portion south of Rogers Quarry, within Chestnut Ridge OU 4, is termed Lower McCoy Branch. The DOE Oak Ridge Y-12 Plant disposed of coal ash from its steam plant operations as a slurry that was discharged into an ash retention impoundment; this impoundment is the FCAP. The FCAP was built in 1955 to serve as a settling basin after coal ash slurried over Chestnut Ridge from the Y-12 Plant. The FCAP was constructed by building an earthen dam across the northern tributary of McCoy Branch. The dam was designed to hold 20 years of Y-12 steam plant ash. By July 1967, ash had filled up the impoundment storage behind the dam to within 4 ft of the top.

  8. THE MASS-LOSS RETURN FROM EVOLVED STARS TO THE LARGE MAGELLANIC CLOUD. II. DUST PROPERTIES FOR OXYGEN-RICH ASYMPTOTIC GIANT BRANCH STARS

    SciTech Connect (OSTI)

    Sargent, Benjamin A.; Meixner, M.; Gordon, Karl D. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Srinivasan, S. [Institut d'Astrophysique de Paris, 98 bis, Boulevard Arago, Paris 75014 (France); Kemper, F.; Woods, Paul M. [Jodrell Bank Centre for Astrophysics, Alan Turing Building, School of Physics and Astronomy, The University of Manchester, Oxford Road, Manchester, M13 9PL (United Kingdom); Tielens, A. G. G. M. [Leiden Observatory, P.O. Box 9513, NL-2300 RA Leiden (Netherlands); Speck, A. K. [Physics and Astronomy Department, University of Missouri, Columbia, MO 65211 (United States); Matsuura, M. [Institute of Origins, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom); Bernard, J.-Ph. [Centre d'Etude Spatiale des Rayonnements, 9 Av. du Colonel Roche, BP 44346, 31028 Toulouse Cedex 4 (France); Hony, S. [Laboratoire AIM, CEA/DSM-CNRS-Universite Paris Diderot DAPNIA/Service d'Astrophysique Bat. 709, CEA-Saclay F-91191 Gif-sur-Yvette Cedex (France); Indebetouw, R. [Department of Astronomy, University of Virginia, P.O. Box 400325, Charlottesville, VA 22904 (United States); Marengo, M. [Department of Physics and Astronomy, Iowa State University, Ames, IA 50011 (United States); Sloan, G. C., E-mail: sargent@stsci.ed [Department of Astronomy, Cornell University, Ithaca, NY 14853 (United States)

    2010-06-10T23:59:59.000Z

    We model multi-wavelength broadband UBVIJHK{sub s} and Spitzer IRAC and MIPS photometry and Infrared Spectrograph spectra from the SAGE and SAGE-Spectroscopy observing programs of two oxygen-rich asymptotic giant branch (O-rich AGB) stars in the Large Magellanic Cloud (LMC) using radiative transfer (RT) models of dust shells around stars. We chose a star from each of the bright and faint O-rich AGB populations found by earlier studies of the SAGE sample in order to derive a baseline set of dust properties to be used in the construction of an extensive grid of RT models of the O-rich AGB stars found in the SAGE surveys. From the bright O-rich AGB population, we chose HV 5715, and from the faint O-rich AGB population we chose SSTISAGE1C J052206.92-715017.6 (SSTSAGE052206). We found the complex indices of refraction of oxygen-deficient silicates from Ossenkopf et al. and a power law with exponential decay grain size distribution like what Kim et al. used but with {gamma} of -3.5, a {sub min} of 0.01 {mu}m, and a {sub 0} of 0.1 {mu}m to be reasonable dust properties for these models. There is a slight indication that the dust around the faint O-rich AGB may be more silica-rich than that around the bright O-rich AGB. Simple models of gas emission suggest a relatively extended gas envelope for the faint O-rich AGB star modeled, consistent with the relatively large dust shell inner radius for the same model. Our models of the data require the luminosity of SSTSAGE052206 and HV 5715 to be {approx}5100 L {sub sun} and {approx}36,000 L {sub sun}, respectively. This, combined with the stellar effective temperatures of 3700 K and 3500 K, respectively, that we find best fit the optical and near-infrared data, suggests stellar masses of {approx}3 M {sub sun} and {approx}7 M {sub sun}. This, in turn, suggests that HV 5715 is undergoing hot-bottom burning and that SSTSAGE052206 is not. Our models of SSTSAGE052206 and HV 5715 require dust shells of inner radius {approx}17 and {approx}52 times the stellar radius, respectively, with dust temperatures there of 900 K and 430 K, respectively, and with optical depths at 10 {mu}m through the shells of 0.095 and 0.012, respectively. The models compute the dust mass-loss rates for the two stars to be 2.0 x 10{sup -9} M{sub sun} yr{sup -1} and 2.3 x 10{sup -9} M{sub sun} yr{sup -1}, respectively. When a dust-to-gas mass ratio of 0.002 is assumed for SSTSAGE052206 and HV 5715, the dust mass-loss rates imply total mass-loss rates of 1.0 x 10{sup -6} M{sub sun} yr{sup -1} and 1.2 x 10{sup -6} M{sub sun} yr{sup -1}, respectively. These properties of the dust shells and stars, as inferred from our models of the two stars, are found to be consistent with properties observed or assumed by detailed studies of other O-rich AGB stars in the LMC and elsewhere.

  9. Measurement of the ratio of the production cross sections times branching fractions of Bc± ? J/??±and B± ? J/? K± and B(Bc±? J/? ?±?±?-/+)/B(Bc± ? J/? ?±) in pp collisions at ?s = 7 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, V. [Yerevan Physics Institute (Armenia)

    2015-01-01T23:59:59.000Z

    The ratio of the production cross sections times branching fractions (?(Bc±) B(Bc± ? J/??±))/(?(B±) B(B± ? J/?K±) is studied in proton-proton collisions at a center-of-mass energy of 7 TeV with the CMS detector at the LHC. The kinematic region investigated requires Ba,sub>c± and B±mesons with transverse momentum p? > 15 GeV and rapidity |y| -1. The ratio is determined to be [0.48 ± 0.05 (stat) ± 0.03(syst) ± 0.05 (?Bc)]% The J/??±?±?-/+ decay mode is also observed in the same data sample. Using a model-independent method developed to measure the efficiency given the presence of resonant behaviour in the three-pion system, the ratio of the branching fractions J/? ?±?±?-/+)/B(Bc± is measured to be 2.55 ± 0.80(stat) ± 0.33(syst) +0.04-0.01 (?Bc), consistent with the previous LHCb result.

  10. Measurement of the ratio of the production cross sections times branching fractions of Bc± ? J/??±and B± ? J/? K± and B(Bc±? J/? ?±?±?-/+)/B(Bc± ? J/? ?±) in pp collisions at ?s = 7 TeV

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Khachatryan, V.

    2015-01-01T23:59:59.000Z

    The ratio of the production cross sections times branching fractions (?(Bc±) B(Bc± ? J/??±))/(?(B±) B(B± ? J/?K±) is studied in proton-proton collisions at a center-of-mass energy of 7 TeV with the CMS detector at the LHC. The kinematic region investigated requires Ba,sub>c± and B±mesons with transverse momentum p? > 15 GeV and rapidity |y| -1. The ratio is determined to be [0.48 ± 0.05 (stat) ± 0.03(syst) ± 0.05 (?Bc)]% The J/??±?±?-/+ decay mode is also observed in the same data sample. Using a model-independent method developed tomore »measure the efficiency given the presence of resonant behaviour in the three-pion system, the ratio of the branching fractions J/? ?±?±?-/+)/B(Bc± is measured to be 2.55 ± 0.80(stat) ± 0.33(syst) +0.04-0.01 (?Bc), consistent with the previous LHCb result.« less

  11. Measurement of Branching Fractions of B decays to K1(1270)pi and K1(1400)pi and Determination of the CKM angle alpha from B0 --> a1(1260) /- pi-/

    SciTech Connect (OSTI)

    Aubert, B.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Prencipe, E.; Prudent, X.; Tisserand, V.; /Annecy, LAPP; Garra Tico, J.; Grauges, E.; /Barcelona U., ECM; Martinelli, M.; Palano, A.; Pappagallo, M.; /INFN, Bari /Bari U.; Eigen, G.; Stugu, B.; Sun, L.; /Bergen U.; Battaglia, M.; Brown, D.N.; Hooberman, B.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G. /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /INFN, Ferrara /Ferrara U. /INFN, Ferrara /INFN, Ferrara /Ferrara U. /INFN, Ferrara /INFN, Ferrara /Ferrara U. /Frascati /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /INFN, Genoa /INFN, Genoa /Genoa U. /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /INFN, Milan /Milan U. /INFN, Milan /INFN, Milan /Milan U. /Mississippi U. /Montreal U. /Mt. Holyoke Coll. /INFN, Naples /Naples U. /INFN, Naples /INFN, Naples /Naples U. /NIKHEF, Amsterdam /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /INFN, Padua /Padua U. /INFN, Padua /INFN, Padua /Padua U. /Paris U., VI-VII /Pennsylvania U. /INFN, Perugia /Perugia U. /INFN, Pisa /Pisa U. /INFN, Pisa /Pisa, Scuola Normale Superiore /INFN, Pisa /Pisa U. /INFN, Pisa /Princeton U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /INFN, Rome /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /SLAC /South Carolina U. /Stanford U., Phys. Dept. /SUNY, Albany /Tel Aviv U. /Tennessee U. /Texas U. /Texas U., Dallas /INFN, Turin /Turin U. /INFN, Trieste /Trieste U. /Valencia U. /Victoria U. /Warwick U. /Wisconsin U., Madison

    2009-10-30T23:59:59.000Z

    We report measurements of the branching fractions of neutral and charged B meson decays to final states containing a K{sub 1}(1270) or K{sub 1}(1400) meson and a charged pion. The data, collected with the BABAR detector at the SLAC National Accelerator Laboratory, correspond to 454 million B{bar B} pairs produced in e{sup +}e{sup -} annihilation. We measure the branching fractions {Beta}(B{sup 0} {yields} K{sub 1}(1270){sup +}{pi}{sup -} + K{sub 1}(1400){sup +}{pi}{sup -}) = 3.1{sub 0.7}{sup +0.8} x 10{sup -5} and {Beta}(B{sup +} {yields} K{sub 1}(1270){sup 0}{pi}{sup +} + K{sub 1}(1400){sup 0}{pi}{sup +}) = 2.9{sub -1.7}{sup +2.9} x 10{sup -5} (< 8.2 x 10{sup -5} at 90% confidence level), where the errors are statistical and systematic combined. The B{sup 0} decay mode is observed with a significance of 7.5{sigma}, while a significance of 3.2{sigma} is obtained for the B{sup +} decay mode. Based on these results, we estimate the weak phase {alpha} = (79 {+-} 7 {+-} 11){sup o} from the time dependent CP asymmetries in B{sup 0} {yields} a{sub 1}(1260){sup {+-}}{pi}{sup {-+}} decays.

  12. Measurement of Branching Fractions and CP-Violating Asymmetries in B0 to K0K0bar and B+ to K0barK+ Decays at the BaBar Experiment

    SciTech Connect (OSTI)

    Biesiada, Jedrzej

    2007-07-10T23:59:59.000Z

    Over the last few years, the B factories have established the Cabbibo-Kobayashi-Maskawa mechanism of CP violation in the Standard Model through the study of the decays of B mesons. The focus of Belle and BaBar has now expanded to the search for signatures of new physics beyond the Standard Model, particularly through examination of flavor-changing neutral-current transitions, which proceed through diagrams involving virtual loops. These decays are suppressed in the Standard Model, increasing sensitivity to new-physics effects but decreasing branching fractions. Exploiting large and growing datasets, BaBar and Belle have made many measurements in loop decays where a b quark transitions to an s quark, observing hints of possible deviations from Standard Model expectations in CP-violating measurements.

  13. Measurement of CP Asymmetries and Branching Fractions in B0 -> pi+ pi-, B0 -> K+ pi-, B0 -> pi0 pi0, B0 -> K0 pi0 and Isospin Analysis of B -> pi pi Decays

    E-Print Network [OSTI]

    The BABAR Collaboration; B. Aubert

    2008-07-31T23:59:59.000Z

    We present preliminary results of improved measurements of the CP-violating asymmetries and branching fractions in the decays B0 -> pi+ pi-, B0 -> K+ pi-, B0 -> pi0 pi0, and B0 -> K0 pi0. This update includes all data taken at the Y(4S) resonance by the BaBar experiment at the asymmetric PEP-II B-meson factory at SLAC, corresponding to 467 +- 5 million BBbar pairs. We find Spipi = -0.68 +- 0.10 +- 0.03, Cpipi = -0.25 +- 0.08 +- 0.02, AKpi = -0.107 +- 0.016 +0.006-0.004, Cpi0pi0 = -0.43 +- 0.26 +- 0.05, BF(B0 -> pi0 pi0) = (1.83 +- 0.21 +- 0.13) x 10^-6, BF(B0 -> K0 pi0) = (10.1 +- 0.6 +- 0.4) x 10^-6, where the first error is statistical and the second is systematic. We observe CP violation with a significance of 6.7 sigma in B0 -> pi+ pi- and 6.1 sigma in B0 -> K+ pi-. Constraints on the Unitarity Triangle angle alpha are determined from the isospin relation between all B -> pipi rates and asymmetries.

  14. Measurement of the Branching Ratios Gamma(D*+s -> D+s pi0)/Gamma(D*+s ->D+s gamma) and Gamma(D*0 ->D0 pi0)/Gamma(D*0 -> D0gamma)

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J.P.; Poireau, V.; Tisserand, V.; Zghiche, A.; /Annecy, LAPP; Grauges, E.; /Barcelona, IFAE; Palano, A.; Pappagallo, M.; Pompili, A.; /Bari U. /INFN, Bari; Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y.S.; /Beijing, Inst. High Energy Phys.; Eigen, G.; Ofte, I.; Stugu, B. /Bergen U. /LBL, Berkeley /UC, Berkeley /Birmingham U. /Ruhr U., Bochum /Bristol U. /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UCLA /UC, Riverside /UC, San

    2005-08-23T23:59:59.000Z

    Data samples corresponding to the isospin-violating decay D*{sub s}{sup +} {yields} D{sub s}{sup +}{pi}{sup 0} and the decays D*{sub s}{sup +} {yields} D{sub s}{sup +}, D*{sup 0} {yields} D{sup 0}{pi}{sup 0} and D*{sup 0} {yields} D{sup 0}{gamma} are reconstructed using 90.4 fb{sup -1} of data recorded by the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} collider. The following branching ratios are extracted: {Lambda}(D*{sub s}{sup +} {yields} D{sub s}{sup +}{pi}{sup 0})/{Lambda}(D*{sub s}{sup +} {yields} D{sub s}{sup +}{gamma}) = 0.062 {+-} 0.005(stat.) {+-} 0.006(syst.) and {Lambda}(D*{sup 0} {yields} D{sup 0}{pi}{sup 0})/{Lambda}(D*{sup 0} {yields} D{sup 0}{gamma}) = 1.74 {+-} 0.02(stat.) {+-} 0.13(syst.). Both measurements represent significant improvements over present world averages.

  15. Measurements of branching fraction ratios and CP-asymmetries in suppressed B-? D(? K+?-)K- and B-? D(? K+?-)?- decays

    SciTech Connect (OSTI)

    Aaltonen, T. [Helsinki Inst. of Physics; Gonzalez, Alvarez B. [Oviedo U., Cantabria Inst. of Phys.; Amerio, S. [INFN, Padua; Amidei, D. [Michigan U.; Anastassov, A. [Northwestern U.; Annovi, A. [Frascati; Antos, J [Comenius U.; Apollinari, G. [Fermilab; Appel, J. A [Fermilab; Apresyan, A. [Purdue; Arisawa, T. [Waseda U., Dubna, JINR

    2011-08-01T23:59:59.000Z

    We report the first reconstruction in hadron collisions of the suppressed decays B-? D(? K+?-)K- and B-? D(? K+?-)?- decays, sensitive to the CKM phase {gamma}, using data from 7 fb-1 of integrated luminosity collected by the CDF II detector at the Tevatron collider. We reconstruct a signal for the B-? D(? K+?-)K- suppressed mode with a significance of 3.2 standard deviations, and measure the ratios of the suppressed to favored branching fractions R(K) = [22.0 ± 8.6(stat) ± 2.6(syst)] x 10-3, R+(K) = [42.6 ± 13.7(stat) ± 2.8(syst)] x 10-3, R-(K) = [3.8 ± 10.3(stat) ± 2.7(syst)] x 10-3 as well as the direct CP-violating asymmetry A(K) = -0.82±0.44(stat)±0.09(syst) of this mode. Corresponding quantities for B- ? D(? K+?-)?- decay are also reported.

  16. Measurement of CP Violation in B0 to Phi K0, and of Branching Fraction and CP Violation in B0 to F0(980) K0(S)

    SciTech Connect (OSTI)

    Kutter, Paul E.

    2008-03-10T23:59:59.000Z

    The authors measure the time-dependent CP asymmetry parameters in B{sup 0} {yields} K{sup +}K{sup -}K{sup 0} based on a data sample of approximately 277 million B-meson pairs recorded at the {Upsilon}(4S) resonance with the BABAR detector at the PEP-II B-meson Factory at SLAC. They reconstruct two-body B{sup 0} decays to {phi}(1020)K{sub s}{sup 0} and {phi}(1020)K{sub L}{sup 0}. Using a time-dependent maximum-likelihood fit, they measure sin2{beta}{sub eff}({phi}K{sup 0}) = 0.48 {+-} 0.28 {+-} 0.10, and C({phi}K{sup 0}) = 0.16 {+-} 0.25 {+-} 0.09, where the first error is statistical, and the second is systematic. They also present measurements of the CP-violating asymmetries in the decay B{sup 0} {yields} f{sub 0}({yields} {pi}{sup +}{pi}{sup -})K{sub s}{sup 0}. The results are obtained from a data sample of 209 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays, also collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-dependent maximum-likelihood fit they measure the mixing-induced CP violation parameter S(f{sub 0}(980)K{sub S}{sup 0}) = - sin 2{beta}{sub eff}f{sub 0}(980)K{sub S}{sup 0} = -0.95{sub -0.23}{sup +0.32} {+-} 0.10 and the direct CP violation parameter C(f{sub 0}(980)K{sub S}{sup 0}) = - 0.24 {+-} 0.31 {+-} 0.15, where the first errors are statistical and the second systematic. Finally, they present a measurement of the branching fraction of the decay B{sup 0} {yields} f{sub 0}({yields} {pi}{sup +}{pi}{sup -})K{sub S}{sup 0}. From a time-dependent maximum likelihood fit to a data sample of 123 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays they find 93.6 {+-} 13.6 {+-} 6.4 signal events corresponding to a branching fraction of {Beta}(B{sup 0} {yields} f{sub 0}(980)({yields} {pi}{sup +}{pi}{sup -})K{sup 0}) = (6.0 {+-} 0.9 {+-} 0.6 {+-} 1.2) x 10{sup -6}, where the first error is statistical, the second systematic, and the third due to model uncertainties.

  17. Implications of a large B s ? ? + ? ? branching fraction for the minimal supersymmetric standard model

    SciTech Connect (OSTI)

    Hooper, Dan; Kelso, Chris

    2012-05-01T23:59:59.000Z

    Recently, the CDF Collaboration reported the first nonzero measurement of the Bs????? branching fraction. The LHCb, CMS and ATLAS, collaborations have reported upper limits that are in tension with the CDF result. We consider the implications of these measurements for the specific case of the minimal supersymmetric standard model. We also discuss the implications of these measurements for neutralino dark matter and the supersymmetric contribution to the anomalous magnetic moment of the muon.

  18. Study of the B{sup -}{yields}J/{psi}K{sup -}{pi}{sup +}{pi}{sup -} decay and measurement of the B{sup -}{yields}X(3872)K{sup -} branching fraction

    SciTech Connect (OSTI)

    Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Gaillard, J.-M.; Hicheur, A.; Karyotakis, Y.; Lees, J. P.; Tisserand, V.; Zghiche, A. [Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France); Palano, A.; Pompili, A. [Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy); Chen, J.C.; Qi, N.D.; Rong, G.; Wang, P.; Zhu, Y. S. [Institute of High Energy Physics, Beijing 100039 (China); Eigen, G.; Ofte, I.; Stugu, B. [University of Bergen, Inst. of Physics, N-5007 Bergen (Norway)] [and others

    2005-04-01T23:59:59.000Z

    We study the decay B{sup -}{yields}J/{psi}K{sup -}{pi}{sup +}{pi}{sup -} using 117x10{sup 6} BB events collected at the Y(4S) resonance with the BABAR detector at the PEP-II e{sup +}e{sup -} asymmetric-energy storage ring. We measure the branching fractions B (B{sup -}{yields}J/{psi}K{sup -}{pi}{sup +}{pi}{sup -})=(116{+-}7(stat.){+-}9(syst.))x10{sup -5} and B (B{sup -}{yields}X(3872)K{sup -})x B (X(3872){yields}J/{psi}{pi}{sup +}{pi}{sup -})=(1.28{+-}0.41)x10{sup -5} and find the mass of the X(3872) to be 3873.4{+-}1.4 MeV/c{sup 2}. We search for the h{sub c} narrow state in the decay B{sup -}{yields}h{sub c}K{sup -}, h{sub c}{yields}J/{psi}{pi}{sup +}{pi}{sup -} and for the decay B{sup -}{yields}J/{psi}D{sup 0}{pi}{sup -}, with D{sup 0}{yields}K{sup -}{pi}{sup +}. We set the 90% C.L. limits B(B{sup -}{yields}h{sub c}K{sup -})xB(h{sub c}{yields}J/{psi}{pi}{sup +}{pi}{sup -})<3.4x10{sup -6} and B(B{sup -}{yields}J/{psi}D{sup 0}{pi}{sup -})<5.2x10{sup -5}.

  19. The effect of branch density polyoxymethylene copolymers

    E-Print Network [OSTI]

    Ilg, Andrea Diane

    2009-05-15T23:59:59.000Z

    predictably with increasing amounts of comonomer incorporation. The copolymerizations behaved the same regardless of whether the comonomer was an alkyldioxolane or epoxyalkane. 1,2-Epoxybutane/trioxane copolymers and 4-ethyl-1,3-dioxolane/trioxane copolymers...

  20. Nanocrystals with linear and branched topology

    DOE Patents [OSTI]

    Alivisatos, A. Paul (Oakland, CA); Milliron, Delia (Berkeley, CA); Manna, Liberato (Lecce, IT); Hughes, Steven M. (Berkeley, CA)

    2007-12-04T23:59:59.000Z

    Disclosed herein are nanostructures comprising distinct dots and rods coupled through potential barriers of tuneable height and width, and arranged in three dimensional space at well defined angles and distances. Such control allows investigation of potential applications ranging from quantum information processing to artificial photosynthesis.