Sample records for beta court reporting

  1. Court Reporter

    National Nuclear Security Administration (NNSA)

    address: Sachiko McAlhany, NEPA Document Manager SPD Supplemental EIS U.S. Department of Energy P.O. Box 2324 Germantown, MD 20874-2324 Facsimile The toll-free fax number to...

  2. Drug Court Effectiveness: A Review of California Evaluation Reports, 1995-1999

    E-Print Network [OSTI]

    Guydish, Joseph R PhD; Wolfe, Ellen; Tajima, Barbara; Woods, William J

    2006-01-01T23:59:59.000Z

    Evaluation qfthe Oakland Drug Court Afur ?ue Ycan. Onklsnd.39; Journal ¢JP:ydIurclive Drugs 378 - -. ~z. ~. ;- Sa;;n"IDrug Courl::

  3. Report of the Court investigation of accident on the Tudor IV. Aircraft “Star Tiger” G-AHNP on the 30th January, 1948, held under Air Navigation 

    E-Print Network [OSTI]

    Anonymous

    MINISTRY OF CIVIL AVIATION REPORT of the Court investigation of the accident to the Tudor IV. Aircraft "Star Tiger" G-AHNP on the 30th January, 1948, held under the Air Navigation (Investigation of Accidents) Regulations, 1922

  4. Beta Beta Beta What is Beta Beta Beta?

    E-Print Network [OSTI]

    Hutcheon, James M.

    Beta Beta Beta What is Beta Beta Beta? Beta Beta Beta (TriBeta) is a society for students. More information can be found on http://www.tri-beta.org. Our chapter, the Tau Kappa chapter, was founded in 1997. What does TriBeta do? In TriBeta, we want to help students learn more about the wide

  5. Genetics in the courts

    SciTech Connect (OSTI)

    Coyle, Heather; Drell, Dan

    2000-12-01T23:59:59.000Z

    Various: (1)TriState 2000 Genetics in the Courts (2) Growing impact of the new genetics on the courts (3)Human testing (4) Legal analysis - in re G.C. (5) Legal analysis - GM ''peanots'', and (6) Legal analysis for State vs Miller

  6. UBC Social Ecological Economic Development Studies (SEEDS) Student Report Sustainability DeBETAbility: Is the Beta House Ecologically Sustainable?

    E-Print Network [OSTI]

    BETAbility: Is the Beta House Ecologically Sustainable? Ada Cheung, Candy Cheung, Sapna Dilgir, Dallas Parsons, Jessica for the implementation of more ecologically sustainable practices at the Beta House, we recommend that the membersUBC Social Ecological Economic Development Studies (SEEDS) Student Report Sustainability De

  7. Energy Analysis and Energy Conservation Options for the Supreme Court and Attorney General Buildings Final Report, Prepared for the Energy Efficiency Division, Texas Public Utility Commission

    E-Print Network [OSTI]

    Farzad, M.; O'Neal, D. L.

    1986-01-01T23:59:59.000Z

    's For The Supreme Court and Attorney General Buildings (KBtu/sf-yr) ABSTRACT The energy use and peak load requirement of the Supreme Court & Attorney General Buildings in Austin, Texas were analyzed using the DOE 2.IB building energy simulation program. An analysis... Energy Commission, September, 1984. [4] Handbook of Fundamentals, ASHRAE 1791 Tullie Circle, N.E., Atlanta, GA 30329. [5] DOE-2, Reference Manual, Version 2.IB, Lawrence Berkeley Laboratory, University of California, Berkeley, CA. 94720, January 19 83. [6...

  8. We report measurement of the equilibrium plasma current profiles in the Levitated Dipole Experiment (LDX) that exhibit a peak beta in excess of 10 percent. The beta

    E-Print Network [OSTI]

    Experiment (LDX) that exhibit a peak beta in excess of 10 percent. The beta of an LDX plasma is calculated will be discussed along with the conditions that lead to the creation of high beta plasmas. #12;Outline · Magnetic · Average and peak beta Substantial analyses must be performed on the magnetic data to actually obtain

  9. UNIVERSITY OF ABERDEEN UNIVERSITY COURT

    E-Print Network [OSTI]

    Levi, Ran

    . 260 The Court noted that the tender price was significantly lower than the cost consultants' estimate of Human Resource, the Clerk and Professors Houlihan and Haites, as members of the Committee Cash Flow Plan and Capital Projects 261 The Court noted that the Board had approved recommendations

  10. Environmental change: Federal courts and the EPA

    SciTech Connect (OSTI)

    O'Leary, R.

    1993-01-01T23:59:59.000Z

    This book presents the findings of a four-year study of the impact of federal court decisions on the policies and administration of the US Environmental Protection Agency (EPA) in all seven of its major statutory areas: clean air, clean water, hazardous waste cleanup, controlled pesticide use, resource conservation and recovery, safe drinking water, and control of toxic substances. The author use the Lexis and Westlaw legal data bases to generate a list of all cases in which the EPA was either a plaintiff or a defendant in each of the agency's seven major statutory areas. The author verified these data and at times supplemented them with EPA records and with environmental reporters published by the Bureau of National Affairs and the Environmental Law Institute. She derived settlement agreements from the EPA, the Department of Justice, and the courts.

  11. Federal Courts Not Federal Tribunals

    E-Print Network [OSTI]

    Mulligan, Lumen N.

    2010-01-01T23:59:59.000Z

    The Court has employed inferred-cause-of-action doctrine to foster the rights of individuals, from injured workers to female college applicants to defrauded investors and targets of racial discrimination. Although the ...

  12. Vanderbilt University 200 Smith Court

    E-Print Network [OSTI]

    Bordenstein, Seth

    John Smith Vanderbilt University 200 Smith Court Smithville, TN 37000 April 12, 20xx Ms. Janice-5000 or john.smithy.smith@vanderbilt.edu, and I thank you for your consideration. Sincerely, (Signature Here) John Smith #12;

  13. PROBATE COURT SOCIAL SERVICES

    E-Print Network [OSTI]

    Oliver, Douglas L.

    decree and annual guardian report. Acceptable uses for grants are: Health (eyeglasses, dental care, etc

  14. Consensus Report of a Workshop on "Matrix elements for Neutrinoless Double Beta Decay"

    E-Print Network [OSTI]

    K. Zuber

    2005-11-03T23:59:59.000Z

    This is the consensus of a Workshop on "Matrix elements for Neutrinoless Double Beta Decay" held at the IPPP Durham (UK). The aim of this workshop has been to define a well planned, coherent strategy to reduce the errors on nuclear matrix element calculations for double beta decay to a level of 30% by performing the necessary measurements with currently existing and planned facilities. These measurements should provide reliable input for the theoretical calculations. The outcome of the workshop has been organised in working packages. The consensus might act as a starting point for an international coherent effort to achieve this goal.

  15. Phase 1 Final Report for In-Situ Tritium Beta Detector

    SciTech Connect (OSTI)

    Berthold, J.W.; Jeffers, L.A.

    1998-04-15T23:59:59.000Z

    The objectives of this three-phase project were to design, develop, and demonstrate a monitoring system capable of detecting and quantifying tritium in situ in ground and surface waters, and in water from effluent lines prior to discharge into public waterways. The tritium detection system design is based on measurement of the low energy beta radiation from the radioactive decay of tritium using a special form of scintillating optical fiber directly in contact with the water to be measured. The system consists of the immersible sensor module containing the optical fiber, and an electronics package, connected by an umbilical cable. The system can be permanently installed for routine water monitoring in wells or process or effluent lines, or can be moved from one location to another for survey use. The electronics will read out tritium activity directly in units of pico Curies per liter, with straightforward calibration. In Phase 1 of the project, we characterized the sensitivity of fluor-doped plastic optical fiber to tritium beta radiation. In addition, we characterized the performance of photomultiplier tubes needed for the system. In parallel with this work, we defined the functional requirements, target specifications, and system configuration for an in situ tritium beta detector that would use the fluor-doped fibers as primary sensors of tritium concentration in water. The major conclusions from the characterization work are: A polystyrene optical fiber with fluor dopant concentration of 2% gave best performance. This fiber had the highest dopant concentration of any fibers tested. Stability may be a problem. The fibers exposed to a 22-day soak in 120 F water experienced a 10x reduction in sensitivity. It is not known whether this was due to the build up of a deposit (a potentially reversible effect) or an irreversible process such as leaching of the scintillating dye.

  16. Audit Committee To oversee on behalf of Court the arrangements for external and internal audit

    E-Print Network [OSTI]

    Glasgow, University of

    . Having received a report from the Capex Committee: to make recommendations to Court on the budget for capital projects; to decide on all capex proposals involving expenditure of £500,000 or above, subject

  17. Sustaining the natural and economical resources of the Lac Courte Oreilles, Leslie Isham; Jason Weaver

    SciTech Connect (OSTI)

    Isham, Leslie; Weaver, Jason

    2013-09-30T23:59:59.000Z

    The Lac Courte Oreilles Band of Lake Superior Chippewa Indians, located in northwest Wisconsin has developed a project, entitled Sustaining the Natural and Economic Resources of the LCO Ojibwe. This technical report is a summary of the project.

  18. Final Report for DUSEL R&D: BetaCage: A Screener of Ultra-Low-Level Radioactive Surface Contamination

    SciTech Connect (OSTI)

    Golwala, Sunil R. [California Institute of Technology] [California Institute of Technology

    2013-12-20T23:59:59.000Z

    The eventual full-size, radiopure BetaCage will be a low-background, atmospheric-pressure neon drift chamber with unprecedented sensitivity to emitters of low-energy electrons and alpha particles. We expect that the prototype BetaCage already developed will be an excellent screener of alpha particles. Both the prototype and final BetaCage will provide new infrastructure for rare-event science.

  19. Business Courts and the Future of Arbitration

    E-Print Network [OSTI]

    Drahozal, Christopher R.

    2009-01-01T23:59:59.000Z

    disputes than arbitration. But the limited empirical evidence available does not show any significant move away from arbitration to business courts as yet. Certainly the analysis here does not resolve as an empirical matter the potential effect of business...

  20. Hanau licenses voided by German state court

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    On July 21, the Higher Administrative Court in the German state of Hesse declared illegal three of the first four partial construction licenses for the plutonium section of the Siemens fuel fabrication complex at Hanau. The licenses were issued in the late 1980s by the former Christian Democrat administration of Hesse, but final licensing of the plant - now 90 percent complete - has been held up by the Social Democrat/Green Party coalition government that is now in power. The court ruling came as a result of four cases, and a so-called urgent application, initiated by antinuclear groups in the area.

  1. District Courts as Patent Laboratories Jeanne C. Fromer*

    E-Print Network [OSTI]

    Loudon, Catherine

    307 District Courts as Patent Laboratories Jeanne C. Fromer* Introduction .....................................................................................................................307 I. The Federal Circuit's Supervisory Role in Patent Law..........................................308 II. District Courts as the Federal Circuit's Patent Laboratories..............................311

  2. Project BETA Cover Page

    E-Print Network [OSTI]

    Cover Page, Project BETA

    2012-01-01T23:59:59.000Z

    and Distribution of the Project BETA articles were funded inproduct is discussed in the BETA articles. Western JournalProject BETA: Best practices in Evaluation and Treatment of

  3. Selection to the Kansas Supreme Court

    E-Print Network [OSTI]

    Ware, Stephen J.

    2008-01-01T23:59:59.000Z

    . This process for selecting justices to the Kansas Supreme Court is described by the organized bar as a "merit," rather than political, process. Other observers, however, emphasize that the process has a political side as well. This paper surveys debate about...

  4. Japan's Squid Fishing Industry WILLIAM G. COURT

    E-Print Network [OSTI]

    Japan's Squid Fishing Industry WILLIAM G. COURT .. Introduction Dried-squid (surume) has been an item of commerce, ceremony, and diet in Japan for hundreds of years, and squid is caught of the fishery. In 1952 squid landings reached 646,730 tons and, at 15 percent of the total, became Japan's most

  5. Creditor Claims in Arbitration and in Court

    E-Print Network [OSTI]

    Drahozal, Christopher R.; Zyontz, Samantha

    2011-01-01T23:59:59.000Z

    Association (AAA) as part of its consumer arbitration docket, supplemented by cases brought by a single debt buyer as part of a consumer debt collection program administered by the AAA. The court cases examined are a sample of cases seeking collection...

  6. FOR PUBLICATION UNITED STATES COURT OF APPEALS

    E-Print Network [OSTI]

    for the Eastern District of New York, sitting by designation. 14565 Case: 07-71576 10/28/2009 Page: 1 of 19 DktFOR PUBLICATION UNITED STATES COURT OF APPEALS FOR THE NINTH CIRCUIT CALIFORNIA ENERGY COMMISSION, Petitioner, No. 07-71576v. DOE No.DEPARTMENT OF ENERGY, EE-RM-PET-100Respondent, OPINIONTHE ASSOCIATION

  7. BetaScint{trademark} fiber-optic sensor for detecting strontium-90 and uranium-238 in soil. Innovative technology summary report

    SciTech Connect (OSTI)

    NONE

    1998-12-01T23:59:59.000Z

    Accurate measurements of radioactivity in soils contaminated with Strontium-90 (Sr-90) or Uranium-238 (U-238) are essential for many DOE site remediation programs. These crucial measurements determine if excavation and soil removal is necessary, where remediation efforts should be focused, and/or if a site has reached closure. Measuring soil contamination by standard EPA laboratory methods typically takes a week (accelerated analytical test turnaround) or a month (standard analytical test turnaround). The time delay extends to operations involving heavy excavation equipment and associated personnel which are the main costs of remediation. This report describes an application of the BetaScint{trademark} fiber-optic sensor that measures Sr-90 or U-238 contamination in soil samples on site in about 20 minutes, at a much lower cost than time-consuming laboratory methods, to greatly facilitate remediation. This report describes the technology, its performance, its uses, cost, regulatory and policy issues, and lessons learned.

  8. Support of Evidence for Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    H. V. Klapdor-Kleingrothaus; A. Dietz; I. V. Krivosheina; Ch. Doerr; C. Tomei

    2003-12-12T23:59:59.000Z

    Indirect support for the evidence of neutrinoless double beta decay reported recently, is obtained by analysis of other Ge double beta experiments, which yield independent information on the background in the region of Q_(beta-beta). Some statistical features as well as background simulations with GEANT 4 of the HEIDELBERG-MOSCOW experiment are discussed which disprove recent criticism.

  9. Court finds implied power to order refunds

    SciTech Connect (OSTI)

    Not Available

    1993-02-01T23:59:59.000Z

    The Oregon Court of Appeals has ruled that the state Public Utility Commission may require refunds of excess revenues collected under temporary rates that are subsequently found illegal, and that such refunds do not violate the rule against retroactive ratemaking. The case involved a 1989 order directing Pacific Northwest Bell Telephone Co. to refund a $10 million over-collection to customers. The Commission had defended its authority to force refunds of interim rates. The appeals court rejected the Commission's rationale, but upheld the refund order. It explained that Pacific Northwest was not entitled to keep excess revenues collected under an interim rate schedule that did not comply with its authorized revenue level. One judge dissented.

  10. Beta Radiation

    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: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced Materials Find MoreLawrence Berkeley Industrial8 BestBestBestBeta

  11. ANU Staff seminar Thursday 15th Nov -The Court as Archive Project

    E-Print Network [OSTI]

    Botea, Adi

    ANU Staff seminar ­Thursday 15th Nov -The Court as Archive Project The role of Australian courts, such as the Federal Court, are responsible for the creation, curation and administration of access to an archive of a diverse society. For example, courts are guided by the civil law principle of `open court' that encourages

  12. Integrin beta-2

    E-Print Network [OSTI]

    Dinasarapu, Ashok Reddy; Chandrasekhar, Anjana; Hajishengallis, George; Subramaniam, Shankar

    2013-01-01T23:59:59.000Z

    for the leukocyte integrin beta- subunit (CD18): a retinoicOrtlepp S, Hogg N (1996). The beta 2 integrin Mac-1 but nottethering defects involving beta 2 integrins and selectin

  13. Colorado Water Courts | 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 directedAnnualProperty EditCalifornia:PowerCER.png El CERCollier TechnologiesColoradoColoradoCourts Jump to:

  14. Range Creek Calibrated Dates Beta-202190

    E-Print Network [OSTI]

    Provancher, William

    Range Creek Calibrated Dates 0 200 400 600 800 1000 1200 1400 Beta-202190 Beta-175753 Beta-175755 Beta-235067 Beta-202189 Beta-214831 Beta-202188 Beta-202191 Beta-203630 Beta-214832 Beta-175754 Beta a Carbon-14 calibrated date (95% CI) between 1000 and 1200 C.E. (Figure 5: Beta-235067). The calibrated

  15. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which holder x 1 INVENTORY FOR TENNIS COURT BLOCK NO: FLAT NO: ROOM NO: NAME: TELEPHONE EXT. NO: #12;How

  16. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which Toilet seat x 1 Toilet roll holder x 1 INVENTORY FOR ELGAR COURT FLAT NO: BLOCK NO: ROOM NO: NAME

  17. IN THE COURT OF APPEALS STATE OF ARIZONA

    E-Print Network [OSTI]

    Shamos, Michael I.

    1 IN THE COURT OF APPEALS STATE OF ARIZONA DIVISION ONE RODNEY L. JOFFE, Plaintiff-Appellee, v. ACACIA MORTGAGE CORPORATION, an Arizona corporation, f/k/a ACACIA NATIONAL MORTGAGE CORPORATION the superior court's order granting what was in effect partial summary judgment in favor of Rodney Joffe

  18. Double beta decay: experiments and theory review

    E-Print Network [OSTI]

    A. Nucciotti

    2007-07-28T23:59:59.000Z

    Neutrinoless double beta decay is one of the most powerful tools to set the neutrino mass absolute scale and establish whether the neutrino is a Majorana particle. After a summary of the neutrinoless double beta decay phenomenology, the present status of the experimental search for this rare decay is reported and the prospects for next generation experiments are reviewed.

  19. beta-decay study of Cu-77

    E-Print Network [OSTI]

    N. Patronis; H. De Witte; M. Gorska; M. Huyse; K. Kruglov; D. Pauwels; K. Van de Vel; P. Van Duppen; J. Van Roosbroeck; J. -C. Thomas; S. Franchoo; J. Cederkall; V. N. Fedoseyev; H. Fynbo; U. Georg; O. Jonsson; U. Köster; T. Materna; L. Mathieu; O. Serot; L. Weissman; W. F. Mueller; V. I. Mishin; D. Fedorov

    2009-09-01T23:59:59.000Z

    A beta-decay study of Cu-77 has been performed at the ISOLDE mass separator with the aim to deduce its beta-decay properties and to obtain spectroscopic information on Zn-77. Neutron-rich copper isotopes were produced by means of proton- or neutron-induced fission reactions on U-238. After the production, Cu-77 was selectively laser ionized, mass separated and sent to different detection systems where beta-gamma and beta-n coincidence data were collected. We report on the deduced half-live, decay scheme, and possible spin assignment of 77Cu.

  20. Beta decay of Ga-62 

    E-Print Network [OSTI]

    Hyman, BC; Iacob, VE; Azhari, A.; Gagliardi, Carl A.; Hardy, John C.; Mayes, VE; Neilson, RG; Sanchez-Vega, M.; Tang, X.; Trache, L.; Tribble, Robert E.

    2003-01-01T23:59:59.000Z

    We report a study of the beta decay of Ga-62, whose dominant branch is a superallowed 0(+)-->0(+) transition to the ground state of Zn-62. We find the total half-life to be 115.84+/-0.25 ms. This is the first time that the Ga-62 half-life has been...

  1. Ethanol mandate thrown out by appeals court

    SciTech Connect (OSTI)

    Begley, R.

    1995-05-10T23:59:59.000Z

    In a victory for the oil industry, a federal appeals court has overturned EPA`s mandate for ethanol use in reformulated gasoline (REG), saying the agency lacks authority to require 30% of the oxygenate market be reserved for ethanol. EPA says the ruling does not prevent ethanols use in RFG - {open_quotes}It only says that EPA cannot dictate the recipe.{close_quotes} Charles DiBona, president of the American Petroleum Institute (API), says {open_quotes}API and its member companies are not opposed to the use of ethanol as an oxygenate. We oppose this illegal mandate.{close_quotes} Urvan Sternfels, president of the National Petroleum Refiners Association, says, {open_quotes}Mandating market shares for any product is unsound economic policy.{close_quotes} The two trade groups led the legal battle against the ethanol requirement.

  2. Reconstituting representation: the supreme court and the rhetorical controversy over state and congressional redistricting

    E-Print Network [OSTI]

    Hickey, Jeremiah Peter

    2009-05-15T23:59:59.000Z

    and redistricting law at the state court level, and the Supreme Court’s invention of a rhetorical tradition in apportionment and districting law before the Reapportionment Revolution. In the last section of Chapter II, I argue that the Pre-Revolution Supreme Court...

  3. Federalism in the Taft Court Era: Can It Be Revived"?

    E-Print Network [OSTI]

    Post, Robert

    2001-01-01T23:59:59.000Z

    Pub. Utils. Comm’n v. Attleboro Steam & Elec. Co. , 273 U.S.ERA chusetts corporation, the Attleboro Company, that it wasGas Co. , the Court in Attleboro Steam & Elec- tric Co.

  4. The Cold War Court: a rhetorical analysis of the Supreme Court's debate concerning the American Communist Party in Dennis v. United States, 1951

    E-Print Network [OSTI]

    Carcasson, Martin

    1998-01-01T23:59:59.000Z

    concerning the judicial rhetoric, the anti-communism debate, and the role of the Supreme Court in the American democracy....

  5. Beta-Delayed Two-Particle Emission

    SciTech Connect (OSTI)

    Borge, M.J.G.

    2000-12-31T23:59:59.000Z

    A panorama of beta-delayed nuclear decay is sketched. Beginning with beta-delayed two-neutron emission, the author moves on to beta-delayed two-proton emission and beta-delayed multiparticle emission. After touching briefly on the theoretical approach to understanding these phenomena, he reports on two experiments done at ISOLDE (CERN) on the decay of {sup 31}Ar with the goal of studying the mechanisms of {beta}-delayed two proton emission. This example shows the potentiality of the new technology that allows design setups with high efficiency for multiparticle detection. In combination with high-purity sources and the use of low-energy beams to produce point-like sources, information at the drip line can be extracted that is of comparable quality to that obtained near stability.

  6. Lac Courte Oreilles Energy Analysis Project

    SciTech Connect (OSTI)

    Leslie Isham; Denise Johnson

    2009-04-01T23:59:59.000Z

    The Lac Courte Oreilles Tribe applied for first step funding in 2007 and was awarded in October of that year. We wanted to perform an audit to begin fulfilling two commitments we made to our membership and resolutions that we adopted. One was the Kyoto Protocol and reduce our carbon emissions by 25% and to produce 25% of our energy by sustainable means. To complete these goals we needed to begin with first assessing what our carbon emissions are and begin taking the steps to conserve on the energy we currently use. The First Step Grant gave us the opportunity to do this. Upon funding the Energy Project was formed under the umbrella of the LCO Public Works Department and Denise Johnson was hired as the coordinator. She quickly began fulfilling the objectives of the project. Denise began by contact the LCO College and hiring interns who were able to go to each Tribal entity and perform line logging to read and document the energy used for each electrical appliance. Data was also gathered for one full year from each entity for all their utility bills (gasoline, electric, natural gas, fuel oil, etc.). Relationships were formed with the Green Team and other Green Committees in the area that could assist us in this undertaking. The Energy Task Force was of great assistance as well recommending other committees and guidance to completing our project. The data was gathered, compiled and placed into spreadsheets that would be understandable for anyone who didn't have a background in Renewable Resources. While gathering the data Denise was also looking for ways to conserve energy usage, policies changes to implement and any possible viable renewable energy resources. Changes in the social behaviors of our members and employees will require further education by workshops, energy fairs, etc.. This will be looked into and done in coordination with our schools. The renewable resources seem most feasible are wind resources as well as Bio Mass both of which need further assessment and funding to do so will be sought. While we already are in ownership of a Hydro Dam it is currently not functioning to its full capacity we are seeking operation and maintenance firm proposals and funding sources. One of our biggest accomplishment this project gave us was our total Carbon Emissions 9989.45 tons, this will be the number that we will use to base our reductions from. It will help us achieve our goals we have set for ourselves in achieving the Kyoto Protocol and saving our Earth for our future generations. Another major accomplishment and lesson learned is we need to educate ourselves and our people on how to conserve energy to both impact the environment and our own budgets. The Lac Courte Oreilles (LCO) Energy Analysis Project will perform an energy audit to gather information on the Tribe's energy usage and determine the carbon emissions. By performing the audit we will be able to identify areas where conservation efforts are most viable and recommend policies that can be implemented. These steps will enable LCO to begin achieving the goals that have been set by the Tribal Governing Board and adopted through resolutions. The goals are to reduce emissions by 25% and to produce 25% of its energy using sustainable sources. The project objectives were very definitive to assist the Tribe in achieving its goals; reducing carbon emissions and obtaining a sustainable source of energy. The following were the outlined objectives: (1) Coordinate LCO's current and future conservation and renewable energy projects; (2) Establish working relationships with outside entities to share information and collaborate on future projects; (3) Complete energy audit and analyze LCO's energy load and carbon emissions; (4) Identify policy changes, education programs and conservation efforts which are appropriate for the LCO Reservation; and (5) Create a plan to identify the most cost effective renewable energy options for LCO.

  7. Searches for neutrinoless double beta decay

    E-Print Network [OSTI]

    B. Schwingenheuer

    2012-01-24T23:59:59.000Z

    Neutrinoless double beta decay is a lepton number violating process whose observation would also establish that neutrinos are their own anti-particles. There are many experimental efforts with a variety of techniques. Some (EXO, Kamland-Zen, GERDA phase I and CANDLES) started take data in 2011 and EXO has reported the first measurement of the half life for the double beta decay with two neutrinos of $^{136}$Xe. The sensitivities of the different proposals are reviewed.

  8. Imperfect World of $\\beta\\beta$-decay Nuclear Data Sets

    E-Print Network [OSTI]

    Pritychenko, B

    2015-01-01T23:59:59.000Z

    The precision of double-beta ($\\beta\\beta$) decay experimental half lives and their uncertainties is reanalyzed. The method of Benford's distributions has been applied to nuclear reaction, structure and decay data sets. First-digit distribution trend for $\\beta\\beta$-decay T$_{1/2}^{2\

  9. Double Beta Decay: Scintillators

    E-Print Network [OSTI]

    Mark C. Chen

    2008-10-20T23:59:59.000Z

    Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into scintillators or can be loaded into scintillators. Experimental programs developing liquid xenon, inorganic crystals, and Nd-loaded liquid scintillator are described in this review. Experiments with 48Ca and 150Nd benefit from their high endpoint which places the neutrinoless double beta decay signal above most backgrounds from natural radioactivity.

  10. Double Beta Decay Experiments

    SciTech Connect (OSTI)

    Nanal, Vandana [Dept. of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400 005 (India)

    2011-11-23T23:59:59.000Z

    At present, neutrinoless double beta decay is perhaps the only experiment that can tell us whether the neutrino is a Dirac or a Majorana particle. Given the significance of the 0{nu}{beta}{beta}, there is a widespread interest for these rare event studies employing a variety of novel techniques. This paper describes the current status of DBD experiments. The Indian effort for an underground NDBD experiment at the upcoming INO laboratory is also presented.

  11. Double beta decay experiments

    E-Print Network [OSTI]

    A. S. Barabash

    2006-02-22T23:59:59.000Z

    The present status of double beta decay experiments are reviewed. The results of the most sensitive experiments, NEMO-3 and CUORICINO, are discussed. Proposals for future double beta decay experiments are considered. In these experiments sensitivity for the effective neutrino mass will be on the level of (0.1-0.01) eV.

  12. Double beta decay experiments

    E-Print Network [OSTI]

    A. S. Barabash

    2011-07-28T23:59:59.000Z

    The present status of double beta decay experiments is reviewed. The results of the most sensitive experiments are discussed. Proposals for future double beta decay experiments with a sensitivity to the $$ at the level of (0.01--0.1) eV are considered.

  13. p38 beta MAP kinase

    E-Print Network [OSTI]

    Rousseau, Simon

    2013-01-01T23:59:59.000Z

    through inhibiting pancreatic beta-cells from apoptosis viaBcl-2/Bax rate and p38-beta mitogen-activated protein2010). Role of spinal p38alpha and beta MAPK in inflammatory

  14. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which seat x 1 Toilet roll holder x 1 INVENTORY FOR SHACKLETON FLAT NO: BLOCK NO: ROOM NO: NAME: TELEPHONE

  15. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which Toilet seat x 1 Toilet roll holder x 1 INVENTORY FOR MASON FLAT NO: BLOCK NO: ROOM NO: NAME: TELEPHONE

  16. INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO.

    E-Print Network [OSTI]

    Birmingham, University of

    INVENTORY FOR ELGAR COURT FLAT NO. BLOCK NO. ROOM NO. Staff on the Vale Village try to ensure and cleaned to a high standard. Please make sure that you complete this inventory and note down anything which rail x 1 INVENTORY FOR MAPLE BANK FLAT NO: BLOCK NO: ROOM NO: NAME: TELEPHONE EXT. NO: #12;How

  17. No. 08-1234 Supreme Court of the United States

    E-Print Network [OSTI]

    Huang, Jianyu

    No. 08-1234 IN THE Supreme Court of the United States JAMAL KIYEMBA, ET AL., Petitioners, v. BARACK H. OBAMA, PRESIDENT OF THE UNITED STATES, ET AL., Respondents. ___________ On Writ of Certiorari of Record Professor and Director International Human Rights Law Program Boston College Law School, 885

  18. UNITED STATES DISTRICT COURT EASTERN DISTRICT OF MICHIGAN

    E-Print Network [OSTI]

    Shyy, Wei

    UNITED STATES DISTRICT COURT EASTERN DISTRICT OF MICHIGAN SOUTHERN DIVISION COALITION TO DEFEND PARTY, Plaintiffs, v. JENNIFER GRANHOLM, in her official capacity as Governor of the State of Michigan, the REGENTS OF THE UNIVERSITY OF MICHIGAN, the BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY, the BOARD

  19. Beta-conjugates Beta -conjugates of algebraic numbers

    E-Print Network [OSTI]

    Beta-conjugates Beta - conjugates of algebraic numbers Jean-Louis Verger-Gaugry Institut Fourier AUSSOIS Workshop Digital expansions, Dynamics and Tilings, April 4-11th 2010 #12;Beta-conjugates Contents series - Puiseux Expansions 4 Beta-conjugates as Puiseux series Rationality questions Factorization

  20. The search for neutrinoless double beta decay

    E-Print Network [OSTI]

    J. J. Gomez-Cadenas; J. Martin-Albo; M. Mezzetto; F. Monrabal; M. Sorel

    2012-01-16T23:59:59.000Z

    In the last two decades the search for neutrinoless double beta decay has evolved into one of the highest priorities for understanding neutrinos and the origin of mass. The main reason for this paradigm shift has been the discovery of neutrino oscillations, which clearly established the existence of massive neutrinos. An additional motivation for conducting such searches comes from the existence of an unconfirmed, but not refuted, claim of evidence for neutrinoless double decay in $^{76}\\text{Ge}$. As a consequence, a new generation of experiments, employing different detection techniques and $\\beta\\beta$ isotopes, is being actively promoted by experimental groups across the world. In addition, nuclear theorists are making remarkable progress in the calculation of the neutrinoless double beta decay nuclear matrix elements, thus eliminating a substantial part of the theoretical uncertainties affecting the particle physics interpretation of this process. In this report, we review the main aspects of the double beta decay process and some of the most relevant experiments. The picture that emerges is one where searching for neutrinoless double beta decay is recognized to have both far-reaching theoretical implications and promising prospects for experimental observation in the near future.

  1. Neutrinoless double beta decay

    E-Print Network [OSTI]

    K. Zuber

    2012-01-23T23:59:59.000Z

    The physics potential of neutrinoless double beta decay is discussed. Furthermore, experimental considerations are presented as well as the current status of experiments. Finally an outlook towards the future, work on nuclear matrix elements and alternative processes is given.

  2. Double Beta Decay

    E-Print Network [OSTI]

    Steven R. Elliott; Petr Vogel

    2002-02-27T23:59:59.000Z

    The motivation, present status, and future plans of the search for the neutrinoless double beta decay are reviewed. It is argued that, motivated by the recent observations of neutrino oscillations, there is a reasonable hope that neutrinoless double beta decay corresponding to the neutrino mass scale suggested by oscillations, of about 50 meV, actually exists. The challenges to achieve the sensitivity corresponding to this mass scale, and plans to overcome them, are described.

  3. Lac Courte Oreilles Hydro Dam Assessment

    SciTech Connect (OSTI)

    Weaver, Jason [Lac Courte Oreilles; Meyers, Amy [Kiser Hydro

    2014-12-31T23:59:59.000Z

    The main objective of this project was to investigate upgrading the existing hydro power generating system at the Winter Dam. The tribe would like to produce more energy and receive a fair market power purchase agreement so the dam is no longer a drain on our budget but a contributor to our economy. We contracted Kiser Hydro, LLC Engineering for this project and received an engineering report that includes options for producing more energy with cost effective upgrades to the existing turbines. Included in this project was a negotiation of energy price sales negotiations.

  4. Stable High Beta Plasmas Confined by a Dipole Magnetic Field D. T. Garnier,

    E-Print Network [OSTI]

    Mauel, Michael E.

    Stable High Beta Plasmas Confined by a Dipole Magnetic Field D. T. Garnier, A. Hansen, M. E. Mauel Center, MIT, Cambridge, MA 02139 (Dated: October 21, 2005) Abstract Stable high-beta plasma is created we report the first production of high beta plasma confined by a laboratory dipole using neutral gas

  5. Relation between the 2{nu}{beta}{beta} and 0{nu}{beta}{beta} nuclear matrix elements

    SciTech Connect (OSTI)

    Vogel, Petr [Kellogg Radiation Laboratory, Caltech, Pasadena, CA 91125 (United States); Simkovic, Fedor [Department of Nuclear Physics and Biophysics, Comenius University, Mlynska dolina F1, SK-84248 Bratislava (Slovakia)

    2011-12-16T23:59:59.000Z

    A formal relation between the GT part of the nuclear matrix elements M{sub GT}{sup 0{nu}} of 0{nu}{beta}{beta} decay and the closure matrix elements M{sub cl}{sup 2{nu}} of 2{nu}{beta}{beta} decay is established. This relation is based on the integral representation of these quantities in terms of their dependence on the distance r between the two nucleons undergoing transformation. We also discuss the difficulties in determining the correct values of the closure 2{nu}{beta}{beta} decay matrix elements.

  6. WHY SEARCH FOR DOUBLE BETA DECAY?

    E-Print Network [OSTI]

    Kayser, B.

    2010-01-01T23:59:59.000Z

    the search for neutrinoless double beta decay may prove verySearching for neutrinoless double beta decay is the onlysensitivity of neutrinoless double beta decay. The potential

  7. Neutrinoless Double Beta Decay: Present and Future

    E-Print Network [OSTI]

    Oliviero Cremonesi

    2002-10-04T23:59:59.000Z

    Present status, and future plans for Double Beta Decay searches are reviewed. Given the recent observations of neutrino oscillations, a possibility to observe $\\beta\\beta(0\

  8. Measurements of the CKM Angle beta

    E-Print Network [OSTI]

    Rainer Bartoldus

    2005-11-04T23:59:59.000Z

    In this article I report on new and updated measurements of the CP-violating parameter beta (phi_1), which is related to the phase of the Cabibbo-Kobayashi-Maskawa (CKM) quark-mixing matrix of the electroweak interaction. Over the past few years, beta has become the most precisely known parameter of the CKM unitarity triangle that governs the B system. The results presented here were produced by the two B factories, BaBar and Belle, based on their most recent datasets of over 600 million BB events combined. The new world average for sin(2beta), measured in the theoretically and experimentally cleanest charmonium modes, such as B -> J/psi K0s, is sin(2beta) = 0.685 +- 0.032. In addition to these tree-level dominated decays, independent measurements of sin(2beta) are obtained from gluonic b --> s penguin decays, including B --> phi K0s, B --> eta' K0s and others. There are hints, albeit somewhat weaker than earlier this year, that these measurements tend to come out low compared to the charmonium average, giving rise to the tantalizing possibility that New Physics amplitudes could be contributing to the corresponding loop diagrams. Clearly, more data from both experiments are needed to elucidate these intriguing differences.

  9. Applied Beta Dosimetry

    SciTech Connect (OSTI)

    Rich, B.L.

    1986-01-01T23:59:59.000Z

    Measurements of beta and/or nonpenetrating exposure results is complicated and past techniques and capabilities have resulted in significant inaccuracies in recorded results. Current developments have resulted in increased capabilities which make the results more accurate and should result in less total exposure to the work force. Continued development of works in progress should provide equivalent future improvements.

  10. Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Heinrich Päs; Werner Rodejohann

    2015-07-01T23:59:59.000Z

    We review the potential to probe new physics with neutrinoless double beta decay $(A,Z) \\to (A,Z+2) + 2 e^-$. Both the standard long-range light neutrino mechanism as well as short-range mechanisms mediated by heavy particles are discussed. We also stress aspects of the connection to lepton number violation at colliders and the implications for baryogenesis.

  11. Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Päs, Heinrich

    2015-01-01T23:59:59.000Z

    We review the potential to probe new physics with neutrinoless double beta decay $(A,Z) \\to (A,Z+2) + 2 e^-$. Both the standard long-range light neutrino mechanism as well as short-range mechanisms mediated by heavy particles are discussed. We also stress aspects of the connection to lepton number violation at colliders and the implications for baryogenesis.

  12. Neutrinoless double beta decay

    E-Print Network [OSTI]

    Petr Vogel

    2006-11-17T23:59:59.000Z

    The status of the search for neutrinoless double beta decay is reviewed. The effort to reach the sensitivity needed to cover the effective Majorana neutrino mass corresponding to the degenerate and inverted mass hierarchy is described. Various issues concerning the theory (and phenomenology) of the relation between the $0\

  13. Trichoderma .beta.-glucosidase

    DOE Patents [OSTI]

    Dunn-Coleman, Nigel; Goedegebuur, Frits; Ward, Michael; Yao, Jian

    2006-01-03T23:59:59.000Z

    The present invention provides a novel .beta.-glucosidase nucleic acid sequence, designated bgl3, and the corresponding BGL3 amino acid sequence. The invention also provides expression vectors and host cells comprising a nucleic acid sequence encoding BGL3, recombinant BGL3 proteins and methods for producing the same.

  14. BEDES Beta | Department of Energy

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

    Beta BEDES Beta The Building Energy Data Exchange Specification was originally developed for use by the Department of Energy (DOE). A uniform format is intended to make it easier...

  15. BEDES Beta | Department of Energy

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

    BEDES Beta BEDES Beta The Building Energy Data Exchange Specification was originally developed for use by the Department of Energy (DOE). A uniform format is intended to make it...

  16. Federal Court Dismisses Waste Fee Challenges | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    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 on Google Bookmark EERE: Alternative Fuels DataDepartment of Energy Your Density Isn't YourTransport in RepresentativeDepartmentEnergy FactorsID-11263CircularAgencyFederal Court

  17. Beta Diffusion Trees Creighton Heaukulani

    E-Print Network [OSTI]

    Edinburgh, University of

    Beta Diffusion Trees Creighton Heaukulani CKH28@CAM.AC.UK David A. Knowles DAVIDKNOWLES Stanford University, Department of Computer Science, Stanford, CA, USA Abstract We define the beta structures over clusters of the particles. With the beta diffu- sion tree, however, multiple copies

  18. Passivity Index for Switched System Technical Report of the ISIS Group

    E-Print Network [OSTI]

    Antsaklis, Panos

    Passivity Index for Switched System Design Technical Report of the ISIS Group at the University of Notre Dame ISIS-09-002 May, 2009 Michael J. McCourt and Panos J. Antsaklis Department of Electrical.J. McCourt and P.J. Antsaklis, "Passivity Index for Switched System Design," ISIS Technical Report

  19. Beta and gamma decays April 9, 2002

    E-Print Network [OSTI]

    Landstreet, John D.

    Beta and gamma decays April 9, 2002 1 Simple Fermi theory of beta decay ² Beta decay is one by the emission of a positive or negative beta particle (positron or electron). To ensure conservation of lepton emitted in beta decay is a continuum of energies, up to a maximum value, with most emitted betas having

  20. Double beta decay: present status

    E-Print Network [OSTI]

    A. S. Barabash

    2008-07-18T23:59:59.000Z

    The present status of double beta decay experiments (including the search for $2\\beta^{+}$, EC$\\beta^{+}$ and ECEC processes) are reviewed. The results of the most sensitive experiments are discussed. Average and recommended half-life values for two-neutrino double beta decay are presented. Conservative upper limits on effective Majorana neutrino mass and the coupling constant of the Majoron to the neutrino are established as $ beta decay experiments with a sensitivity for the $$ at the level of (0.01-0.1) eV are considered.

  1. Technical Report Documentation Page 1. Report No.

    E-Print Network [OSTI]

    to be opened to long-haul Mexican carriers under NAFTA. As a result of truck traffic surge, from. Recipient's Catalog No. 5. Report Date April 2007 4. Title and Subtitle Characterizing Truck Traffic in truck movements in the countries. In 2004, the Supreme Court ruled against the requirement to undertake

  2. Supreme court agrees: FERC must regulate wholesale markets

    SciTech Connect (OSTI)

    Wolak, Frank A. (Holbrook Working Professor of Commodity Price Studies, Department of Economics, Stanford University)

    2008-08-15T23:59:59.000Z

    The author believes that wholesale markets in the United States would have a greater likelihood of ultimately benefiting consumers if the Federal Energy Regulatory Commission did not have the mandate under the Federal Power Act (FPA) to ensure that wholesale prices are ''just and reasonable.'' However, he continues to believe that the FERC cannot avoid having an ex post criteria for asssessing whether market prices are just and reasonable. Moreover, changes in the design and regulatory oversight of U.S. wholesale electricity markets in recent years, including the recent Supreme Court decision, have caused him to believe even more strongly in the guardrails-for-market-outcomes approach. Finally, several questions are addressed which relate to the pricing of fixed-price, long-term contracts and the impact of these obligations on the behavior of suppliers in short-term wholesale markets that are directly relevant to answering the two major questions that the Supreme Court remanded to FERC in its recent decision.

  3. Ternary Complex of Transforming Growth Factor-[beta]1 Reveals Isoform-specific Ligand Recognition and Receptor Recruitment in the Superfamily

    SciTech Connect (OSTI)

    Radaev, Sergei; Zou, Zhongcheng; Huang, Tao; Lafer, Eileen M.; Hinck, Andrew P.; Sun, Peter D. (Texas-HSC); (NIH)

    2010-11-03T23:59:59.000Z

    Transforming growth factor (TGF)-{beta}1, -{beta}2, and -{beta}3 are 25-kDa homodimeric polypeptides that play crucial nonoverlapping roles in embryogenesis, tissue development, carcinogenesis, and immune regulation. Here we report the 3.0-{angstrom} resolution crystal structure of the ternary complex between human TGF-{beta}1 and the extracellular domains of its type I and type II receptors, T{beta}RI and T{beta}RII. The TGF-{beta}1 ternary complex structure is similar to previously reported TGF-{beta}3 complex except with a 10{sup o} rotation in T{beta}RI docking orientation. Quantitative binding studies showed distinct kinetics between the receptors and the isoforms of TGF-{beta}. T{beta}RI showed significant binding to TGF-{beta}2 and TGF-{beta}3 but not TGF-{beta}1, and the binding to all three isoforms of TGF-{beta} was enhanced considerably in the presence of T{beta}RII. The preference of TGF-{beta}2 to T{beta}RI suggests a variation in its receptor recruitment in vivo. Although TGF-{beta}1 and TGF-{beta}3 bind and assemble their ternary complexes in a similar manner, their structural differences together with differences in the affinities and kinetics of their receptor binding may underlie their unique biological activities. Structural comparisons revealed that the receptor-ligand pairing in the TGF-{beta} superfamily is dictated by unique insertions, deletions, and disulfide bonds rather than amino acid conservation at the interface. The binding mode of T{beta}RII on TGF-{beta} is unique to TGF-{beta}s, whereas that of type II receptor for bone morphogenetic protein on bone morphogenetic protein appears common to all other cytokines in the superfamily. Further, extensive hydrogen bonds and salt bridges are present at the high affinity cytokine-receptor interfaces, whereas hydrophobic interactions dominate the low affinity receptor-ligand interfaces.

  4. Measurement of $\\beta_s$ at CDF

    SciTech Connect (OSTI)

    Oakes, Louise; /Oxford U.

    2011-02-01T23:59:59.000Z

    The latest results for the measurement of the CP violating phase {beta}{sub s} in B{sub s}{sup 0} {yields} J/{Psi}{phi} decays, from 5.2 fb{sup -1} integrated luminosity of CDF data are presented. For the first time, this measurement includes the contribution of B{sub s}{sup 0} {yields} J/{Psi}K{sup +}K{sup -} or B{sub s}{sup 0} {yields} J/{Psi}f{sub 0} events to the signal sample, where the f{sub 0} and non-resonant K{sup +}K{sup -} are S-wave states. Additional improvements to the analysis include more than doubling the signal sample, improved selection and particle ID, and fully calibrated flavour tagging for the full dataset. Additionally, the world's most precise single measurements of the B{sub s}{sup 0} lifetime, {tau}{sub s}, and width difference, {Delta}{Gamma}{sub s} are given.

  5. Progress report and technology status development of an EG and G Berthold LB-150 alpha/beta particulate monitor for use on the East Tennessee Technology Park Toxic Substances Control Act Incinerator

    SciTech Connect (OSTI)

    Shor, J.T.; Singh, S.P.N. [Oak Ridge National Lab., TN (United States). Chemical Technology Div.; Gibson, L.V. Jr. [East Tennessee Technology Park, Oak Ridge, TN (United States). ASO Customer Services Div.

    1998-06-01T23:59:59.000Z

    The purpose of this project was to modify and evaluate a commercially available EG and G Berthold LB-150 alpha-beta radionuclide particulate monitor for the high-temperature and moisture-saturation conditions of the East Tennessee Technology Park (formerly K-25 Site) Toxic Substances Control Act (TSCA) Incinerator stack. The monitor was originally outfitted for operation at gas temperatures of 150 F on the defunct Los Alamos National Laboratory (LANL) controlled air incinerator, and the objective was to widen its operating envelope. A laboratory apparatus was constructed that simulated the effects of water-saturated air at the TSCA Incinerator stack-gas temperatures, 183 F. An instrumented set of heat exchangers was constructed to then condition the gas so that the radionuclide monitor could be operated without condensation. Data were collected under the conditions of the elevated temperatures and humidities and are reported herein, and design considerations of the apparatus are provided. The heat exchangers and humidification equipment performed as designed, the Mylar film held, and the instrument suffered no ill effects. However, for reasons as yet undetermined, the sensitivity of the radionuclide detection diminishes as the gas temperature is elevated, whether the gas is humidified or not. The manufacturer has had no experience with (a) the operation of the monitor under these conditions and (b) any commercial market that might exist for an instrument that operates under these conditions. The monitor was not installed into the radiologically contaminated environment of the TSCA Incinerator stack pending resolution of this technical issue.

  6. Rings in the Planetesimal Disk of Beta Pic

    E-Print Network [OSTI]

    P. Kalas; J. Larwood; B. A. Smith; A. Schultz

    2000-01-13T23:59:59.000Z

    The nearby main sequence star Beta Pictoris is surrounded by an edge-on disk of dust produced by the collisional erosion of larger planetesimals. Here we report the discovery of substructure within the northeast extension of the disk midplane that may represent an asymmetric ring system around Beta Pic. We present a dynamical model showing that a close stellar flyby with a quiescient disk of planetesimals can create such rings, along with previously unexplained disk asymmetries. Thus we infer that Beta Pic's planetesimal disk was highly disrupted by a stellar encounter in the last hundred thousand years.

  7. Probing structural features of amyloid-beta Ion channels in membranes using A-beta mutants

    E-Print Network [OSTI]

    Kotler, Samuel Aaron

    2011-01-01T23:59:59.000Z

    al. , Aggregation and neurotoxicity of mutant amyloid beta (A beta) peptides with proline replacement: importance ofand D.J. Selkoe, Amyloid beta-protein deposition in tissues

  8. Double Beta Decay

    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: National5Sales for4,645 3,625govInstrumentstdmadapInactiveVisitingContract ManagementDiscovering HowAna Moore Anne Jones DevensforDouble Beta

  9. BECCAV1.0 BETA

    Energy Science and Technology Software Center (OSTI)

    002318WKSTN00 Brain-Emulating Cognition and Control Architecture (BECCA) V1.0 beta  http://sourceforge.net/projects/becca 

  10. Simultaneous beta and gamma spectroscopy

    DOE Patents [OSTI]

    Farsoni, Abdollah T. (Corvallis, OR); Hamby, David M. (Corvallis, OR)

    2010-03-23T23:59:59.000Z

    A phoswich radiation detector for simultaneous spectroscopy of beta rays and gamma rays includes three scintillators with different decay time characteristics. Two of the three scintillators are used for beta detection and the third scintillator is used for gamma detection. A pulse induced by an interaction of radiation with the detector is digitally analyzed to classify the type of event as beta, gamma, or unknown. A pulse is classified as a beta event if the pulse originated from just the first scintillator alone or from just the first and the second scintillator. A pulse from just the third scintillator is recorded as gamma event. Other pulses are rejected as unknown events.

  11. The beta-Hermite and beta-Laguerre processes

    E-Print Network [OSTI]

    Luen-Chau Li

    2010-07-22T23:59:59.000Z

    In this work, we introduce matrix-valued diffusion processes which describe the non-equilibrium situation of the matrix models for the beta-Hermite and the beta-Laguerre ensembles. We also study the corresponding spectral measure process and empirical/singular value process with regard to their limit laws.

  12. MAJORANA Neutrinoless Double-Beta Decay DUSEL R&D

    SciTech Connect (OSTI)

    Wilkerson, John F.

    2009-09-04T23:59:59.000Z

    The Majorana research and development is addressing key issues and risks related to the collaboration's goal of undertaking a search for neutrinoless double-beta decay (0{nu}{beta}{beta}) in {sup 76}Ge using an array of hyper-pure Ge-diodes (HPGe). The observation of this decay would provide critical insight into our understanding of neutrinos, yielding definitive evidence that neutrinos are Majorana particles and providing information on the absolute mass of neutrinos. Achieving sensitivities to 0{nu}{beta}{beta} decay half-lives on the order of 10{sup 26} years requires ultra-low backgrounds in the 2039 keV region where a 0{nu}{beta}{beta} decay peak would be observed. The goal of our R&D program has been to demonstrate the feasibility of all components of Majorana and to provide an integrated evaluation framework, allowing for optimization of these components in terms of background, background suppression, and signal detection efficiency and acceptance. This report covers work carried out by Majorana collaboration members at the University of Washington as part of the overall Majorana collaboration activities. Specifically the Majorana group at the University of Washington was involved in moving forward on demonstrating technology for clean large-scale cryostats and mounting the HPGe crystals in low-mass holders. The UW activities included assistance in the procurement and assembly of an electroforming system for large size cryostats, and design and fabrication of prototype crystal mounting hardware.

  13. Predicting neutrinoless double beta decay

    SciTech Connect (OSTI)

    Hirsch, M.; Villanova del Moral, A.; Valle, J.W.F. [AHEP Group, Instituto de Fisica Corpuscular - C.S.I.C./Universitat de Valencia, Edificio Institutos de Paterna, Apt 22085, E-46071 Valencia (Spain); Ma, Ernest [Physics Department, University of California, Riverside, California 92521 (United States); Institute for Particle Physics Phenomenology, University of Durham, Durham, DH1 3LE (United Kingdom)

    2005-11-01T23:59:59.000Z

    We give predictions for the neutrinoless double beta decay rate in a simple variant of the A{sub 4} family symmetry model. We show that there is a lower bound for the {beta}{beta}{sub 0{nu}} amplitude even in the case of normal hierarchical neutrino masses, corresponding to an effective mass parameter vertical bar m{sub ee} vertical bar {>=}0.17{radical}({delta}m{sub ATM}{sup 2}). This result holds both for the CP conserving and CP violating cases. In the latter case we show explicitly that the lower bound on vertical bar m{sub ee} vertical bar is sensitive to the value of the Majorana phase. We conclude therefore that in our scheme, {beta}{beta}{sub 0{nu}} may be accessible to the next generation of high sensitivity experiments.

  14. MEASURING PROTOPLANETARY DISK ACCRETION WITH H I PFUND {beta}

    SciTech Connect (OSTI)

    Salyk, Colette [National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Herczeg, Gregory J. [Kavli Institute for Astronomy and Astrophysics at Peking University, Yi He Yuan Lu 5, Hai Dian Qu, Beijing 100871 (China); Brown, Joanna M. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Blake, Geoffrey A. [Division of Geological and Planetary Sciences, Mail Code 150-21, California Institute of Technology, Pasadena, CA 91125 (United States); Pontoppidan, Klaus M. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Van Dishoeck, Ewine F., E-mail: csalyk@noao.edu [Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden (Netherlands)

    2013-05-20T23:59:59.000Z

    In this work, we introduce the use of H I Pfund {beta} (Pf{beta}; 4.6538 {mu}m) as a tracer of mass accretion from protoplanetary disks onto young stars. Pf{beta} was serendipitously observed in NIRSPEC and CRIRES surveys of CO fundamental emission, amounting to a sample size of 120 young stars with detected Pf{beta} emission. Using a subsample of disks with previously measured accretion luminosities, we show that Pf{beta} line luminosity is well correlated with accretion luminosity over a range of at least three orders of magnitude. We use this correlation to derive accretion luminosities for all 120 targets, 65 of which are previously unreported in the literature. The conversion from accretion luminosity to accretion rate is limited by the availability of stellar mass and radius measurements; nevertheless, we also report accretion rates for 67 targets, 16 previously unmeasured. Our large sample size and our ability to probe high extinction values allow for relatively unbiased comparisons between different types of disks. We find that the transitional disks in our sample have lower than average Pf{beta} line luminosities, and thus accretion luminosities, at a marginally significant level. We also show that high Pf{beta} equivalent width is a signature of transitional disks with high inner disk gas/dust ratios. In contrast, we find that disks with signatures of slow disk winds have Pf{beta} luminosities comparable to those of other disks in our sample. Finally, we investigate accretion rates for stage I disks, including significantly embedded targets. We find that stage I and stage II disks have statistically indistinguishable Pf{beta} line luminosities, implying similar accretion rates, and that the accretion rates of stage I disks are too low to be consistent with quiescent accretion. Our results are instead consistent with both observational and theoretical evidence that stage I objects experience episodic, rather than quiescent, accretion.

  15. The Return of Reasonableness: Saving the Fourth Amendment from the Supreme Court

    E-Print Network [OSTI]

    Wilson, Melanie D.

    2008-01-01T23:59:59.000Z

    The Supreme Court's Fourth Amendment jurisprudence has been oft criticized. The criticism is not surprising or undeserved. After all, the express language of the Fourth Amendment requires that the government act reasonably ...

  16. Patent Amicus Briefs: What the Courts' Friends Can Teach Us About the Patent

    E-Print Network [OSTI]

    Loudon, Catherine

    397 Patent Amicus Briefs: What the Courts' Friends Can Teach Us About the Patent System Colleen V....................................................................................................410 IV. Analysis of Patent Amicus Briefs ..........................................................................412 A. Patent "Insiders" Dominate Amicus Filings............................................412 1

  17. From Cloister to Court: Nuns and the Gendered Culture of Disputing in Early Modern France

    E-Print Network [OSTI]

    Tuttle, Leslie R.

    2010-06-01T23:59:59.000Z

    of Sainte-Catherine-lès-Provins in Provins, France. Divided over the issue of reform that would impose stricter enclosure, the community became factionalized and unable to resolve its disputes internally. But access to France's civil courts was limited...

  18. Renaissance culture at the court of James V, 1528-1542 

    E-Print Network [OSTI]

    Thomas, Andrea Susan

    1997-12-03T23:59:59.000Z

    This study of the cultural activities of the Scottish court in the adult reign of King James V reveals a vibrant, sophisticated and confident outlook, which was more closely integrated with the developments of the ...

  19. Court of the commissaries of Edinburgh: consistorial law and litigation, 1559 – 1576 

    E-Print Network [OSTI]

    Green, Thomas Matthew

    2010-11-26T23:59:59.000Z

    This thesis examines the appointment of the Commissaries of Edinburgh, the court over which they presided, and their consistorial jurisdiction during the era of the Scottish Reformation. It is argued that the Commissaries ...

  20. Flexing Judicial Muscle: An Empirical Study of Judicial Activism in the Federal Courts

    E-Print Network [OSTI]

    Yung, Corey Rayburn

    2011-01-01T23:59:59.000Z

    Empirical scholarship about judicial activism has focused on the United States Supreme Court, relied upon subjective coding of individual cases as “activist” or “restrained,” and only examined instances when the federal ...

  1. No. 01-1605 In the Supreme Court of the United States

    E-Print Network [OSTI]

    Kammen, Daniel M.

    No. 01-1605 In the Supreme Court of the United States IN RE GARY A. TAYLOR, PETITIONER ON PETITION Attorney General MICHAEL R. DREEBEN Deputy Solicitor General MATTHEW D. ROBERTS Assistant to the Solicitor

  2. What do abortion policies accomplish? : understanding how abortion laws and court cases affect public opinion

    E-Print Network [OSTI]

    Hernandez, Cory D

    2014-01-01T23:59:59.000Z

    Abortion is a loaded, controversial, and divisive sociocultural and political term, concept, and debate. Yet little empirical research has been conducted to examine what effects abortion rights legislation and court cases ...

  3. Introduction To Life to the Full: Rights and Social Justice in Australia (Connor Court, 2007)

    E-Print Network [OSTI]

    Franklin, James

    Introduction To Life to the Full: Rights and Social Justice in Australia (Connor Court, 2007) James twentieth-century Europe, Postwar, demonstrates the power of rights as a moral and political weapon

  4. Differences in sounds made by courting males of three closely related Lake Malawi cichlid species

    E-Print Network [OSTI]

    . C. P. AMORIM*, M. E. KNIGHT, Y. STRATOUDAKIS§ AND G. F. TURNER{ *Unidade de Investigac¸a~o em Eco species, court- ship calls of three species of Pseudotropheus that co-occur at Nkhata Bay, on the western

  5. 17.245 The Supreme Court, Civil Liberties, and Civil Rights, Fall 2006

    E-Print Network [OSTI]

    Ghachem, Malick

    This course introduces students to the work of the Supreme Court and to the main outlines of American constitutional law, with an emphasis on the development of American ideas about civil rights. The goal of the course is ...

  6. The organization, powers, and duties of the county commissioners' court in Texas

    E-Print Network [OSTI]

    Daughety, Gerald Lee

    1973-01-01T23:59:59.000Z

    THE ORGANIZATION, POWERS, AND DUTIES OF THE COUNTY COMMISSIONERS' COURT IN TEXAS A Thesis GERALD LEE DAUGHETY Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF ARTS... May 1973 Major Subject: POLITICAL SCIENCE THE ORGANIZATION& POWERS, AND DUTIES OF THE COUNTY COMMISSIONFRS ' COURT IN TEXAS A Thesis by GERALD LEE DAUGHETY Approved s to style and content by: (Chairma of Committee) Qdd P. dRu (Head...

  7. Is Adjudication a Public Good?: “Overcrowded Courts” and the Private-Sector Alternative of Arbitration

    E-Print Network [OSTI]

    Ware, Stephen J.

    2013-07-11T23:59:59.000Z

    \\\\jciprod01\\productn\\C\\CAC\\14-3\\CAC313.txt unknown Seq: 1 30-APR-13 15:32 IS ADJUDICATION A PUBLIC GOOD? “OVERCROWDED COURTS” AND THE PRIVATE SECTOR ALTERNATIVE OF ARBITRATION Stephen J. Ware* I. INTRODUCTION Courts are underfunded, dockets... in the nation because of the extraordinary number of vacant federal judicial positions and the problems associated with delayed judicial appointment, dangerously crowded dockets, suspended civil case dockets, burgeoning criminal caseloads, overburdened judges...

  8. Reports

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

    Reports Reports Individual Permit reports are prepared annually to facilitate public review of activities for the previous year. Contact Environmental Communication & Public...

  9. Photometric studies of three multiperiodic Beta Cephei stars: Beta CMa, 15 CMa and KZ Mus

    E-Print Network [OSTI]

    R. R. Shobbrook; G. Handler; D. Lorenz; D. Mogorosi

    2006-03-28T23:59:59.000Z

    We have carried out single and multi-site photometry of the three Beta Cephei stars Beta and 15 CMa as well as KZ Mus. For the two stars in CMa, we obtained 270 h of measurement in the Stromgren uvy and Johnson V filters, while 150 h of time-resolved Stromgren uvy photometry was acquired for KZ Mus. All three stars are multi-periodic variables, with three (Beta CMa) and four (15 CMa, KZ Mus) independent pulsation modes. Two of the mode frequencies of 15 CMa are new discoveries and one of the known modes showed amplitude variations over the last 33 years. Taken together, this explains the star's diverse behaviour reported in the literature fully. Mode identification by means of the amplitude ratios in the different passbands suggests one radial mode for each star. In addition, Beta CMa has a dominant l=2 mode while its third mode is nonradial with unknown l. The nonradial modes of 15 CMa, which are l KZ Mus is l=2, followed by the radial mode and a dipole mode. Its weakest known mode is nonradial with unknown l, confirming previous mode identifications for the star's pulsations. The phased light curve for the strongest mode of 15 CMa has a descending branch steeper than the rising branch. A stillstand phenomenon during the rise to maximum light is indicated. Given the low photometric amplitude of this nonradial mode this is at first sight surprising, but it can be explained by the mode's aspect angle.

  10. 0{nu}{beta}{beta}: The experimental challenge

    SciTech Connect (OSTI)

    Ferroni, Fernando [Sapienza Universita' and INFN Sezione di Roma, Roma I-00185 (Italy)

    2010-11-24T23:59:59.000Z

    This paper describes the main experimental issues related to neutrinoless double beta decay searches. It discusses, although briefly, the past, present and future of this exciting, fundamental but extremely complex field of research.

  11. Variants of beta-glucosidase

    DOE Patents [OSTI]

    Fidantsef, Ana (Davis, CA); Lamsa, Michael (Davis, CA); Gorre-Clancy, Brian (Elk Grove, CA)

    2009-12-29T23:59:59.000Z

    The present invention relates to variants of a parent beta-glucosidase, comprising a substitution at one or more positions corresponding to positions 142, 183, 266, and 703 of amino acids 1 to 842 of SEQ ID NO: 2 or corresponding to positions 142, 183, 266, and 705 of amino acids 1 to 844 of SEQ ID NO: 70, wherein the variant has beta-glucosidase activity. The present invention also relates to nucleotide sequences encoding the variant beta-glucosidases and to nucleic acid constructs, vectors, and host cells comprising the nucleotide sequences.

  12. Low energy beta-beams

    E-Print Network [OSTI]

    Cristina Volpe

    2009-11-13T23:59:59.000Z

    The main goal of a beta-beam facility is to determine the possible existence of CP violation in the lepton sector, the value of the third neutrino mixing angle and the mass hierarchy. Here we argue that a much broader physics case can be covered since the beta-beam concept can also be used to establish a low energy beta-beam facility. We discuss that the availability of neutrino beams in the 100 MeV energy range offers a unique opportunity to perform neutrino scattering experiments of interest for nuclear physics, for the study of fundamental interactions and of core-collapse supernova physics.

  13. Variants of beta-glucosidases

    DOE Patents [OSTI]

    Fidantsef, Ana; Lamsa, Michael; Gorre-Clancy, Brian

    2014-10-07T23:59:59.000Z

    The present invention relates to variants of a parent beta-glucosidase, comprising a substitution at one or more positions corresponding to positions 142, 183, 266, and 703 of amino acids 1 to 842 of SEQ ID NO: 2 or corresponding to positions 142, 183, 266, and 705 of amino acids 1 to 844 of SEQ ID NO: 70, wherein the variant has beta-glucosidase activity. The present invention also relates to nucleotide sequences encoding the variant beta-glucosidases and to nucleic acid constructs, vectors, and host cells comprising the nucleotide sequences.

  14. Neutrinoless Double Beta Decay Constraints

    E-Print Network [OSTI]

    Hiroaki Sugiyama

    2003-07-25T23:59:59.000Z

    A brief overview is given of theoretical analyses with neutrinoless double beta decay experiments. Theoretical bounds on the ``observable'', _betabeta, are presented. By using experimental bounds on _betabeta, allowed regions are obtained on the m_l-cos{2theta_12} plane, where m_l stands for the lightest neutrino mass. It is shown that Majorana neutrinos can be excluded by combining possible results of future neutrinoless double beta decay and {}^3H beta decay experiments. A possibility to constrain one of two Majorana phases is discussed also.

  15. Variants of beta-glucosidases

    DOE Patents [OSTI]

    Fidantsef, Ana (Davis, CA); Lamsa, Michael (Davis, CA); Clancy, Brian Gorre (Elk Grove, CA)

    2008-08-19T23:59:59.000Z

    The present invention relates to variants of a parent beta-glucosidase, comprising a substitution at one or more positions corresponding to positions 142, 183, 266, and 703 of amino acids 1 to 842 of SEQ ID NO: 2 or corresponding to positions 142, 183, 266, and 705 of amino acids 1 to 844 of SEQ ID NO: 70, wherein the variant has beta-glucosidase activity. The present invention also relates to nucleotide sequences encoding the variant beta-glucosidases and to nucleic acid constructs, vectors, and host cells comprising the nucleotide sequences.

  16. Beta 3 at Y-12

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

    one that has gained substantial historic significance over the years. Building 9204-3 (Beta 3), on March, 1950, was transferred to ORNL management for use in the stable isotope...

  17. Beta particle monitor for surfaces

    DOE Patents [OSTI]

    MacArthur, D.W.

    1997-10-21T23:59:59.000Z

    A beta radiation detector which is capable of reliably detecting beta radiation emitted from a surface. An electrically conductive signal collector is adjustably mounted inside an electrically conductive enclosure which may define a single large opening for placing against a surface. The adjustable mounting of the electrically conductive signal collector can be based on the distance from the surface or on the expected beta energy range. A voltage source is connected to the signal collector through an electrometer or other display means for creating an electric field between the signal collector and the enclosure. Air ions created by the beta radiation are collected and the current produced is indicated on the electrometer or other display means. 2 figs.

  18. Beta particle monitor for surfaces

    DOE Patents [OSTI]

    MacArthur, Duncan W. (Los Alamos, NM)

    1997-01-01T23:59:59.000Z

    A beta radiation detector which is capable of reliably detecting beta radiation emitted from a surface. An electrically conductive signal collector is adjustably mounted inside an electrically conductive enclosure which may define a single large opening for placing against a surface. The adjustable mounting of the electrically conductive signal collector can be based on the distance from the surface or on the expected beta energy range. A voltage source is connected to the signal collector through an electrometer or other display means for creating an electric field between the signal collector and the enclosure. Air ions created by the beta radiation are collected and the current produced is indicated on the electrometer or other display means.

  19. Neutrinoless Double Beta-Decay

    E-Print Network [OSTI]

    S. M. Bilenky

    2010-01-12T23:59:59.000Z

    The neutrinoless double $\\beta$-decay of nuclei is reviewed. We discuss neutrino mixing and 3x3 PMNS neutrino mixing matrix. Basic theory of neutrinoless double $\\beta$-decay is presented in some details. Results of different calculations of nuclear matrix element are discussed. Experimental situation is considered. The Appendix is dedicated to E. Majorana (brief biography and his paper in which the theory of Majorana particles is given)

  20. Generating Beta Variates Via Patchwork Rejection \\Lambda

    E-Print Network [OSTI]

    Stadlober, Ernst

    Generating Beta Variates Via Patchwork Rejection \\Lambda H. Zechner and E. Stadlober, Graz --- Zusammenfassung Generating Beta Variates Via Patchwork Rejection. A new algorithm for sampling from beta(p; q deviates can often be accepted immediately, so that much fewer than two uniforms are needed for one beta

  1. Beta Reduction Constraints Manuel Bodirsky Katrin Erk

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Beta Reduction Constraints Manuel Bodirsky Katrin Erk Alexander Koller Joachim Niehren Programming partially. In this paper, we introduce beta reduction constraints to describe beta reduction steps between partially known lambda terms. We show that beta reduction constraints can be expressed in an extension

  2. Neutrinoless double beta decay and neutrino masses

    SciTech Connect (OSTI)

    Duerr, Michael [Max-Planck-Institut fuer Kernphysik, Saupfercheckweg 1, 69117 Heidelberg (Germany)

    2012-07-27T23:59:59.000Z

    Neutrinoless double beta decay (0{nu}{beta}{beta}) is a promising test for lepton number violating physics beyond the standard model (SM) of particle physics. There is a deep connection between this decay and the phenomenon of neutrino masses. In particular, we will discuss the relation between 0{nu}{beta}{beta} and Majorana neutrino masses provided by the so-called Schechter-Valle theorem in a quantitative way. Furthermore, we will present an experimental cross check to discriminate 0{nu}{beta}{beta} from unknown nuclear background using only one isotope, i.e., within one experiment.

  3. Nufact 2008 The Beta Beam WP Beta beam R&D status

    E-Print Network [OSTI]

    McDonald, Kirk

    Nufact 2008 The Beta Beam WP Nufact 08 1 Beta beam R&D status Elena Wildner, CERN on behalf of the Beta Beam Study Group EURISOL/Euronu #12;Nufact 2008 The Beta Beam WP Nufact08Nufact08 Outline Recall, EURISOL Ion Production Loss Management Improvements New Program, EuroNu 2 #12;Nufact 2008 The Beta Beam WP

  4. Calculation of dose to soft tisse from implanted beta sources

    E-Print Network [OSTI]

    Dauffy, Lucile

    1998-01-01T23:59:59.000Z

    for beta dose calculations are reported in the literature. Monte Carlo codes are very often used but are cumbersome. A Monte Carlo code can be used to model the exact path and energies that a particle assumes as it passes through a medium using random...

  5. Fundamental processes in the interacting boson model: 0{nu}{beta}{beta} decay

    SciTech Connect (OSTI)

    Iachello, F. [Center for Theoretical Physics, Sloane Physics Laboratory, Yale University, New Haven, CT 06520-8120 (United States); Barea, J. [Departamento de Fisica, Universidad de Concepcion, Casilla 160-C, Concepcion (Chile)

    2011-05-06T23:59:59.000Z

    A program to calculate nuclear matrix elements for fundamental processes in the interacting boson model has been initiated. Results for the nuclear matrix elements in neutrinoless double beta decay 0{nu}{beta}{beta} are presented.

  6. Status and prospects of searches for neutrinoless double beta decay

    E-Print Network [OSTI]

    Bernhard Schwingenheuer

    2012-10-28T23:59:59.000Z

    The simultaneous beta decay of two neutrons in a nucleus without the emission of neutrinos (called neutrinoless double beta decay) is a lepton number violating process which is not allowed in the Standard Model of particle physics. More than a dozen experiments using different candidate isotopes and a variety of detection techniques are searching for this decay. Some (EXO-200, Kamland-Zen, GERDA) started to take data recently. EXO and Kamland-Zen have reported first limits of the half life $T_{1/2}^{0\

  7. Coal in court: Whitehaven, climate change and civil disobedience http://theconversation.com/coal-in-court-whitehaven-climate-change-and-civil-disobedience-15991[19/07/2013 2:37:22 PM

    E-Print Network [OSTI]

    Botea, Adi

    + Energy Health + Medicine Politics + Society Science + Technology Election FactCheck Coal in courtCoal in court: Whitehaven, climate change and civil disobedience http://theconversation.com/coal Future Fellow working on a project entitled "Intellectual Property and Climate Change: Inventing Clean

  8. Predicting Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    M. Hirsch; Ernest Ma; J. W. F. Valle; A. Villanova del Moral

    2005-07-12T23:59:59.000Z

    We give predictions for the neutrinoless double beta decay rate in a simple variant of the A_4 family symmetry model. We show that there is a lower bound for the neutrinoless double beta decay amplitude even in the case of normal hierarchical neutrino masses, corresponding to an effective mass parameter |m_{ee}| >= 0.17 \\sqrt{\\Delta m^2_{ATM}}. This result holds both for the CP conserving and CP violating cases. In the latter case we show explicitly that the lower bound on |m_{ee}| is sensitive to the value of the Majorana phase. We conclude therefore that in our scheme, neutrinoless double beta decay may be accessible to the next generation of high sensitivity experiments.

  9. Short-range correlations and neutrinoless double beta decay

    E-Print Network [OSTI]

    M. Kortelainen; O. Civitarese; J. Suhonen; J. Toivanen

    2007-01-18T23:59:59.000Z

    In this work we report on the effects of short-range correlations upon the matrix elements of neutrinoless double beta decay. We focus on the calculation of the matrix elements of the neutrino-mass mode of neutrinoless double beta decays of 48Ca and 76Ge. The nuclear-structure components of the calculation, that is the participant nuclear wave functions, have been calculated in the shell-model scheme for 48Ca and in the proton-neutron quasiparticle random-phase approximation (pnQRPA) scheme for 76Ge. We compare the traditional approach of using the Jastrow correlation function with the more complete scheme of the unitary correlation operator method (UCOM). Our results indicate that the Jastrow method vastly exaggerates the effects of short-range correlations on the neutrinoless double beta decay nuclear matrix elements.

  10. Beta ray flux measuring device

    DOE Patents [OSTI]

    Impink, Jr., Albert J. (Murrysville, PA); Goldstein, Norman P. (Murrysville, PA)

    1990-01-01T23:59:59.000Z

    A beta ray flux measuring device in an activated member in-core instrumentation system for pressurized water reactors. The device includes collector rings positioned about an axis in the reactor's pressure boundary. Activated members such as hydroballs are positioned within respective ones of the collector rings. A response characteristic such as the current from or charge on a collector ring indicates the beta ray flux from the corresponding hydroball and is therefore a measure of the relative nuclear power level in the region of the reactor core corresponding to the specific exposed hydroball within the collector ring.

  11. Neutrinoless double beta decay experiments

    E-Print Network [OSTI]

    K. Zuber

    2006-10-04T23:59:59.000Z

    The study of neutrinoless double beta decay is of outmost importance for neutrino physics. It is considered to be the gold plated channel to probe the fundamental character of neutrinos and to determine the neutrino mass. From the experimental point about nine different isotopes are explored for the search. After a general introduction follows a short discussion on nuclear matrix element calculations and supportive measurements. The current experimental status of double beta searches is presented followed by a short discussion of the ideas and proposals for large scale experiments.

  12. A review of "The Age of Faction: Court Politics, 1660-1702." by Alan Marshall

    E-Print Network [OSTI]

    Molly Mcclain

    2002-01-01T23:59:59.000Z

    for Parliament?s consent in passing legisla- tion, is reproduced with the substitution of James I on the throne. Alan Marshall. The Age of Faction: Court Politics, 1660-1702. Manchester and New York: Manchester University Press, 1999. x + 234 pp. $79....95. Review by MOLLY MCCLAIN, UNIVERSITY OF SAN DIEGO. Alan Marshall has produced a well-researched and entertain- ing survey of the later Stuart court. He writes with considerable authority on the politics and personalities in the reigns of Charles II, James...

  13. What can we learn from neutrinoless double beta decay experiments?

    E-Print Network [OSTI]

    Bahcall, John N.

    2009-01-01T23:59:59.000Z

    Limits From Neutrinoless Double-Beta Decay (Rev. ),” ina next generation neutrinoless double beta decay search andPARTICLES? NO NEUTRINOLESS DOUBLE BETA DECAY AND INVERTED

  14. Constraining neutrinoless double beta decay

    E-Print Network [OSTI]

    L. Dorame; D. Meloni; S. Morisi; E. Peinado; J. W. F. Valle

    2011-11-23T23:59:59.000Z

    A class of discrete flavor-symmetry-based models predicts constrained neutrino mass matrix schemes that lead to specific neutrino mass sum-rules (MSR). We show how these theories may constrain the absolute scale of neutrino mass, leading in most of the cases to a lower bound on the neutrinoless double beta decay effective amplitude.

  15. Beta calutrons and Y-12 experiments

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

    important details. Such is the case with Building 9204-3, commonly known as "Beta 3," and affectionately noted as being THE only building where the 1945 beta calutrons...

  16. SUTTIP V.0.1 BETA

    Energy Science and Technology Software Center (OSTI)

    002915WKSTN00 Sandia Unstructured Triangle Tabular Interpolation Package v 0.1 beta  ihttps://software.sandia.gov/ 

  17. Neutrino mass limit from tritium beta decay

    E-Print Network [OSTI]

    E. W. Otten; C. Weinheimer

    2009-09-11T23:59:59.000Z

    The paper reviews recent experiments on tritium beta spectroscopy searching for the absolute value of the electron neutrino mass $m(\

  18. Polypeptides having beta-glucosidase activity and beta-xylosidase activity and polynucleotides encoding same

    DOE Patents [OSTI]

    Morant, Marc Dominique

    2014-04-29T23:59:59.000Z

    The present invention relates to isolated polypeptides having beta-glucosidase activity, beta-xylosidase activity, or beta-glucosidase and beta-xylosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.

  19. Polypeptides having beta-glucosidase activity and beta-xylosidase activity and polynucleotides encoding same

    DOE Patents [OSTI]

    Morant, Marc Dominique

    2014-05-06T23:59:59.000Z

    The present invention relates to isolated polypeptides having beta-glucosidase activity, beta-xylosidase activity, or beta-glucosidase and beta-xylosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.

  20. Polypeptides having beta-glucosidase and beta-xylosidase activity and polynucleotides encoding same

    DOE Patents [OSTI]

    Morant, Marc Dominique

    2014-05-06T23:59:59.000Z

    The present invention relates to isolated polypeptides having beta-glucosidase activity, beta-xylosidase activity, or beta-glucosidase and beta-xylosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.

  1. A Review of "Marriage, Performance, and Politics at the Jacobean Court" by Kevin Curran

    E-Print Network [OSTI]

    Stapleton, M. L.

    2010-01-01T23:59:59.000Z

    for women?s sacrifice. Kevin Curran. Marriage, Performance, and Politics at the Jacobean Court. Burlington, VT: Ashgate, 2009. ix + 187 pp. $99.95. Review by m. l. stapleton, indiana university-purdue university, fort wayne. This study analyzes the six...

  2. South Platte River Compact and U.S. Supreme Court Decree for North Platte River

    E-Print Network [OSTI]

    Nebraska-Lincoln, University of

    1 South Platte River Compact and U.S. Supreme Court Decree for North Platte River J. Michael Jess Platte, and Arkansas rivers, for example, have been resolved through litigation brought before the U and Kansas are examples. In the Platte River watershed the State of Nebraska has experience allocating water

  3. Eliot Quataert (UC Berkeley) w/ Mike McCourt, Ian Parrish, Prateek Sharma

    E-Print Network [OSTI]

    Wurtele, Jonathan

    ' & studying key processes · Compact Object Astrophysics · gamma-ray bursts, transients, accretion theoryEliot Quataert (UC Berkeley) w/ Mike McCourt, Ian Parrish, Prateek Sharma ` Hydra A (x-ray in Theoretical Astrophysics #12;` Hydra A (x-ray)Perseus (optical) The Biermann Lectures: Adventures

  4. Clean Water Act Jurisdiction Following the U.S . Supreme Court's Decision

    E-Print Network [OSTI]

    US Army Corps of Engineers

    Clean Water Act Jurisdiction Following the U.S . Supreme Court's Decision in Rapanos v. United the jurisdiction over waters of the United States under the Clean Water Act. 3 The chart below summarizes the key will assert jurisdiction over the following waters: " Traditional navigable waters " Wetlands adjacent

  5. No. 01-1623 In the Supreme Court of the United States

    E-Print Network [OSTI]

    Kammen, Daniel M.

    . TAYLOR, PETITIONERS ON PETITION FOR A WRIT OF CERTIORARI TO THE UNITED STATES COURT OF APPEALS of Record MICHAEL CHERTOFF Assistant Attorney General MICHAEL R. DREEBEN Deputy Solicitor General MATTHEW D) ................................................................................ 3 Clark v. Johnson, 278 F.3d 459 (5th Cir. 2002), petition for cert. pending sub. nom. In re Taylor

  6. Depuis les annes 1950, le recours l'automobile pour de courts

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Depuis les années 1950, le recours à l'automobile pour de courts trajets quotidiens ne cesse de elles seules, à réduire le recours à l'automobile. La question se pose alors de cerner les conditions permettant de changer le comportement en matière de choix modal (bus ou automobile) : le station- nement ne

  7. An Explanation for Beta's Mean-reversion

    E-Print Network [OSTI]

    Bodkin, Connor Matthew

    2013-09-26T23:59:59.000Z

    -reversion in beta values. They find that 26 companies do not have a constant beta and that 14 of the non-constant betas are mean reverting. Their model is the modified Kalman filter that Harvey et al. (1992) developed. De Bondt and Thaler’s paper finds...

  8. Model BETA 52 A User Guide

    E-Print Network [OSTI]

    Skorobogatiy, Maksim

    Model BETA 52® A User Guide 27D2799 (Rev. 5) Printed in U.S.A. ©2005, Shure Incorporated SUPERCARDIOID DYNAMIC INSTRUMENT MICROPHONE GENERAL The Shure BETA 52® A is a high output dynamic microphone. The BETA 52A features a modified supercardioid pattern through- out its frequency range to insure high gain

  9. The Beta distribution approach PAULA TATARU

    E-Print Network [OSTI]

    Schierup, Mikkel Heide

    Betaspikes The Beta distribution approach PAULA TATARU AARHUS UNIVERSITY Bioinformatics Research, mutation and selection Joint work with Asger Hobolth and Thomas Bataillon #12;Allele frequencies: the Beta;Allele frequencies: the Beta distribution approach Paula Tataru paula@birc.au.dk AARHUS UNIVERSITY

  10. Beta-hypergeometric probability distribution on symmetric matrices

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Beta-hypergeometric probability distribution on symmetric matrices A. Hassairi , M. Masmoudi, O. Regaig Sfax University Tunisia. Running title: Beta-hypergeometric distribution Abstract : Some remarkable properties of the beta distribution are based on relations in- volving independence between beta

  11. Support for court-yard houses : Riyad, Saudi Arabia

    E-Print Network [OSTI]

    Akbar, Jamel A

    1981-01-01T23:59:59.000Z

    The objective of this report is to explore the application of the support concept in the Saudi Arabian context, as a result of the author's interest in the concept of user participation. To do so, the following steps were ...

  12. Large {beta}-Delayed Neutron Emission Probabilities in the {sup 78}Ni Region

    SciTech Connect (OSTI)

    Winger, J. A.; Ilyushkin, S. V. [Department of Physics and Astronomy, Mississippi State University, Mississippi State, Mississippi 39762 (United States); Rykaczewski, K. P.; Gross, C. J.; Shapira, D. [Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Batchelder, J. C. [UNIRIB, Oak Ridge Associated Universities, Oak Ridge, Tennessee 37831 (United States); Goodin, C.; Hamilton, J. H. [Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States); Grzywacz, R. [Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States); Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States); Korgul, A. [Institute of Experimental Physics, Warsaw University, Warszawa, PL 00-681 (Poland); Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States); Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States); Joint Institute for Heavy-Ion Reactions, Oak Ridge, Tennessee 37831 (United States); Krolas, W. [Institute of Nuclear Physics, Polish Academy of Sciences, Krakow, PL 31-342 (Poland); Joint Institute for Heavy-Ion Reactions, Oak Ridge, Tennessee 37831 (United States); Liddick, S. N. [UNIRIB, Oak Ridge Associated Universities, Oak Ridge, Tennessee 37831 (United States); Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States); Mazzocchi, C. [Dept. of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States); IFGA, University of Milan and INFN, Milano, I-20133 (Italy); Padgett, S.; Rajabali, M. M. [Dept. of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996 (United States); Piechaczek, A.; Zganjar, E. F. [Dept. of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803 (United States)] (and others)

    2009-04-10T23:59:59.000Z

    The {beta}-delayed neutron branching ratios (P{sub {beta}}{sub n}) for nuclei near doubly magic {sup 78}Ni have been directly measured using a new method combining high-resolution mass separation, reacceleration, and digital {beta}-{gamma} spectroscopy of {sup 238}U fission products. The P{sub {beta}}{sub n} values for the very neutron-rich isotopes {sup 76-78}Cu and {sup 83}Ga were found to be much higher than previously reported and predicted. Revised calculations of the {beta}n process, accounting for new mass measurements and an inversion of the {pi}2p{sub 3/2} and {pi}1f{sub 5/2} orbitals, are in better agreement with these new experimental results.

  13. 0v{beta}{beta} decay: theoretical nuclear matrix elements and their covariances

    SciTech Connect (OSTI)

    Lisi, Eligio [Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Via Orabona 4, 70126 Bari (Italy)

    2009-11-09T23:59:59.000Z

    Within the quasiparticle random phase approximation (QRPA), the covariances associated to the nuclear matrix elements (NME) of neutrinoless double beta decay (0v{beta}{beta}) are estimated. It is shown that correlated NME uncertainties play an important role in the comparison of 0v{beta}{beta} decay rates for different nuclei, both in the standard case of light Majorana neutrino exchange, and in nonstandard physics cases.

  14. Development of Cryogenic Bolometer for 0{nu}{beta}{beta} in {sup 124}Sn

    SciTech Connect (OSTI)

    Singh, Vivek; Mathimalar, S.; Dokania, Neha [INO, Tata Institute of Fundamental Research, Mumbai 400 005 (India); Yashwant, G.; Nanal, V.; Pillay, R. G. [Dept. of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai 400 005 (India); Datar, V. M. [Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085 (India)

    2011-11-23T23:59:59.000Z

    Cryogenic bolometer detectors, with their high resolution spectroscopy capability, are ideal for neutrino mass experiments as well as for search of rare processes like neutrinoless double beta decay (0{nu}{beta}{beta}) and dark matter. A feasibility study for investigation of 0{nu}{beta}{beta} in {sup 124}Sn at the upcoming underground facility of India based Neutrino Observatory (INO) has been initiated. This paper describes endeavors towards cryogenic tin bolometer development.

  15. Molecular basis for amyloid-[beta] polymorphism

    SciTech Connect (OSTI)

    Colletier, Jacques-Philippe; Laganowsky, Arthur; Landau, Meytal; Zhao, Minglei; Soriaga, Angela B.; Goldschmidt, Lukasz; Flot, David; Cascio, Duilio; Sawaya, Michael R.; Eisenberga, David (UCLA); (ESRF)

    2011-10-19T23:59:59.000Z

    Amyloid-beta (A{beta}) aggregates are the main constituent of senile plaques, the histological hallmark of Alzheimer's disease. A{beta} molecules form {beta}-sheet containing structures that assemble into a variety of polymorphic oligomers, protofibers, and fibers that exhibit a range of lifetimes and cellular toxicities. This polymorphic nature of A{beta} has frustrated its biophysical characterization, its structural determination, and our understanding of its pathological mechanism. To elucidate A{beta} polymorphism in atomic detail, we determined eight new microcrystal structures of fiber-forming segments of A{beta}. These structures, all of short, self-complementing pairs of {beta}-sheets termed steric zippers, reveal a variety of modes of self-association of A{beta}. Combining these atomic structures with previous NMR studies allows us to propose several fiber models, offering molecular models for some of the repertoire of polydisperse structures accessible to A{beta}. These structures and molecular models contribute fundamental information for understanding A{beta} polymorphic nature and pathogenesis.

  16. Neutrinoless Double Beta Decay Experiments

    E-Print Network [OSTI]

    Garfagnini, Alberto

    2014-01-01T23:59:59.000Z

    Neutrinoless double beta decay is the only process known so far able to test the neutrino intrinsic nature: its experimental observation would imply that the lepton number is violated by two units and prove that neutrinos have a Majorana mass components, being their own anti-particle. While several experiments searching for such a rare decay have been performed in the past, a new generation of experiments using different isotopes and techniques have recently released their results or are taking data and will provide new limits, should no signal be observed, in the next few years to come. The present contribution reviews the latest public results on double beta decay searches and gives an overview on the expected sensitivities of the experiments in construction which will be able to set stronger limits in the near future.

  17. Neutrinoless Double Beta Decay Experiments

    E-Print Network [OSTI]

    Alberto Garfagnini

    2014-08-11T23:59:59.000Z

    Neutrinoless double beta decay is the only process known so far able to test the neutrino intrinsic nature: its experimental observation would imply that the lepton number is violated by two units and prove that neutrinos have a Majorana mass components, being their own anti-particle. While several experiments searching for such a rare decay have been performed in the past, a new generation of experiments using different isotopes and techniques have recently released their results or are taking data and will provide new limits, should no signal be observed, in the next few years to come. The present contribution reviews the latest public results on double beta decay searches and gives an overview on the expected sensitivities of the experiments in construction which will be able to set stronger limits in the near future.

  18. THE DEPENDENCE OF MAGNETIC RECONNECTION ON PLASMA {beta} AND MAGNETIC SHEAR: EVIDENCE FROM SOLAR WIND OBSERVATIONS

    SciTech Connect (OSTI)

    Phan, T. D.; Pasma, C.; Oeieroset, M.; Larson, D.; Lin, R. P.; Davis, M. S. [SSL, University of California, Berkeley, CA 94720 (United States); Gosling, J. T. [University of Colorado, Boulder, CO (United States); Paschmann, G. [MPE, Garching (Germany); Drake, J. F., E-mail: phan@ssl.berkeley.ed [University of Maryland, College Park, MD (United States)

    2010-08-20T23:59:59.000Z

    We address the conditions for the onset of magnetic reconnection based on a survey of 197 reconnection events in solar wind current sheets observed by the Wind spacecraft. We report the first observational evidence for the dependence of the occurrence of reconnection on a combination of the magnetic field shear angle, {theta}, across the current sheet and the difference in the plasma {beta} values on the two sides of the current sheet, {Delta}{beta}. For low {Delta}{beta}, reconnection occurred for both low and high magnetic shears, whereas only large magnetic shear events were observed for large {Delta}{beta}: Events with shears as low as 11{sup 0} were observed for {Delta}{beta} < 0.1, but for {Delta}{beta} > 1.5 only events with {theta} > 100{sup 0} were detected. Our observations are in quantitative agreement with a theoretical prediction that reconnection is suppressed in high {beta} plasmas at low magnetic shears due to super-Alfvenic drift of the X-line caused by plasma pressure gradients across the current sheet. The magnetic shear-{Delta}{beta} dependence could account for the high occurrence rate of reconnection observed in current sheets embedded within interplanetary coronal mass ejections, compared to those in the ambient solar wind. It would also suggest that reconnection could occur at a substantially higher rate in solar wind current sheets closer to the Sun than at 1 AU and thus may play an important role in the generation and heating of the solar wind.

  19. Constraints on light neutrino parameters derived from the study of neutrinoless double beta decay

    E-Print Network [OSTI]

    Sabin Stoica; Andrei Neacsu

    2014-05-02T23:59:59.000Z

    The study of the neutrinoless double beta ($0 \\beta\\beta$) decay mode can provide us with important information on the neutrino properties, particularly on the electron neutrino absolute mass. In this work we revise the present constraints on the neutrino mass parameters derived from the $0 \\beta\\beta$ decay analysis of the experimentally interesting nuclei. We use the latest results for the phase space factors (PSFs) and nuclear matrix elements (NMEs), as well as for the experimental lifetimes limits. For the PSFs we use values computed with an improved method reported very recently. For the NMEs we use values chosen from literature on a case-by-case basis, taking advantage of the consensus reached by the community on several nuclear ingredients used in their calculation. Thus, we try to restrict the range of spread of the NME values calculated with di?erent methods and, hence, to reduce the uncertainty in deriving limits for the Majorana neutrino mass parameter. Our results may be useful to have an up-date image on the present neutrino mass sensitivities associated with $0 \\beta\\beta$ measurements for different isotopes and to better estimate the range of values of the neutrino masses that can be explored in the future double beta decay (DBD) experiments.

  20. IN THE COURT OF CRIMINAL APPEALS OF TENNESSEE AT KNOXVILLE

    E-Print Network [OSTI]

    Shamos, Michael I.

    , for the Appellant, Charles Drake. Paul G. Summers, Attorney General & Reporter; John H. Bledsoe, Assistant Attorney General; Randall E. Nichols, District Attorney General; and Zane Scarlett, Assistant District Attorney. The passenger in Ms. Burke's vehicle, Gordon Wright, sustained several cracked ribs, torn ligaments on his right

  1. Majorana DUSEL R&D Final Report

    SciTech Connect (OSTI)

    Fast, James E.; Hoppe, Eric W.; Mintzer, Esther E.; Aalseth, Craig E.; Day, Anthony R.; Gerlach, David C.; Farmer, Orville T.; Liezers, Martin; Lepel, Elwood A.; Miley, Harry S.; Edwards, Danny J.

    2010-09-21T23:59:59.000Z

    This report summarizes the work performed at PNNL under the project Majorana Neutrinoless Double Beta Decay DUSEL R&D over the period of FY07-FY09.

  2. Beta-Delayed gamma and Neutron Emission near the Double Shell Closure at 78Ni

    SciTech Connect (OSTI)

    Mazzocchi, C. [University of Tennessee, Knoxville (UTK); Grzywacz, R. [University of Tennessee, Knoxville (UTK); Batchelder, J. C. [Oak Ridge Associated Universities (ORAU); Bingham, C. R. [University of Tennessee, Knoxville (UTK); Fong, D. [Vanderbilt University; Hamilton, J. H. [Vanderbilt University; Hwang, J. K. [Vanderbilt University; Karny, M. [University of Warsaw; Krolas, W. [Vanderbilt University; Liddick, S. N. [Michigan State University, East Lansing; Morton, A. C. [Michigan State University, East Lansing; Mantica, P. F. [Michigan State University, East Lansing; Mueller, W. F. [Michigan State University, East Lansing; Rykaczewski, Krzysztof Piotr [ORNL; Steiner, M. [Michigan State University, East Lansing; Stolz, A. [Michigan State University, East Lansing; Winger, J. A. [Mississippi State University (MSU)

    2005-01-01T23:59:59.000Z

    An experiment was performed at the National Superconducting Cyclotron Laboratory at Michigan State University to investigate {beta} decay of very neutron-rich cobalt isotopes. Beta-delayed neutron emission from {sup 71-74}Co has been observed for the first time. Preliminary results are reported.

  3. arXiv:hep-ex/0211071v325Feb2003 A Calorimetric Search on Double Beta Decay

    E-Print Network [OSTI]

    and on the neutrinoless double beta decay of 128Te to the ground state of 128Xe are also reported and discussed limit of 2.1× 1023 years has been obtained at the 90 % C.L. on the lifetime for neutrinoless double beta decay of 130Te . In terms of effective neutrino mass this leads to the most restrictive limit in direct

  4. Beta-decay of Mn-65 to Fe-65

    E-Print Network [OSTI]

    Olaizola, B; Mach, H; Aprahamian, A; Briz, J A; Cal-Gonzalez, J; Ghita, D; Koster, U; Kurcewicz, W; Lesher, S R; Pauwels, D; Picado, E; Poves, A; Radulov, D; Simpson, G S; Udias, J M

    2013-01-01T23:59:59.000Z

    The low energy structure of Fe-65 has been studied by means of gamma- and fast-timing spectroscopy. A level scheme of Fe-65 populated following the beta-decay of Mn-65 was established for the first time. It includes 41 levels and 85 transitions. The excitation energy of the beta-decaying isomer in Fe-65 has been precisely determined at 393.7(2) keV. The beta delayed neutron emission branch was measured as Pn = 7.9(12)%, which cannot be reconciled with the previously reported value of 21.0(5)%. Four gamma-rays and four excited states in Fe-64 were identified as being populated following the beta-n decay. Four lifetimes and five lifetime limits in the subnanosecond range have been measured using the Advanced Time-Delayed Method. The level scheme is compared with shell-model calculations. Tentative spin and parity assignments are proposed based on the observed transition rates, the calculations and the systematics of the region.

  5. Beta decay of Neutron-Rich 53-56Ca

    E-Print Network [OSTI]

    P. F. Mantica; R. Broda; H. L. Crawford; A. Damaske; B. Fornal; A. A. Hecht; C. Hoffman; M. Horoi; N. Hoteling; R. V. F. Janssens; J. Pereira; J. S. Pinter; J. B. Stoker; S. L. Tabor; T. Sumikama; W. B. Walters; X. Wang; S. Zhu

    2008-01-07T23:59:59.000Z

    Beta-decay properties of neutron-rich Ca isotopes have been obtained. Half-life values were determined for the first time for 54Ca [86(7) ms], 55Ca [22(2) ms], and 56Ca [11(2) ms]. The half-life of 230(6) ms deduced for 53Ca is significantly longer than reported previously, where the decay chain 53K -> 53Ca -> 53Sc was considered. A delayed gamma ray with energy 247 keV as identified following beta decay of 54Ca, and is proposed to depopulate the first 1+ level in 54Sc. The beta-decay properties compare favorably with the results of shell model calculations completed in the full pf-space with the GXPF1 interaction. The half-lives of the neutron-rich Ca isotopes are also compared with gross beta-decay theory. The systematic trend of the neutron-rich Ca half-lives is consistent with the presence of a subshell gap at N=32.

  6. Search for Neutrinoless Double-Beta Decay in $^{136}$Xe with EXO-200

    E-Print Network [OSTI]

    M. Auger; D. J. Auty; P. S. Barbeau; E. Beauchamp; V. Belov; C. Benitez-Medina; M. Breidenbach; T. Brunner; A. Burenkov; B. Cleveland; S. Cook; T. Daniels; M. Danilov; C. G. Davis; S. Delaquis; R. deVoe; A. Dobi; M. J. Dolinski; A. Dolgolenko; M. Dunford; W. Fairbank Jr.; J. Farine; W. Feldmeier; P. Fierlinger; D. Franco; G. Giroux; R. Gornea; K. Graham; G. Gratta; C. Hall; K. Hall; C. Hargrove; S. Herrin; M. Hughes; A. Johnson; T. N. Johnson; A. Karelin; L. J. Kaufman; A. Kuchenkov; K. S. Kumar; D. S. Leonard; F. Leonard; D. Mackay; R. MacLellan; M. Marino; B. Mong; M. Montero Diez; A. R. Muller; R. Neilson; R. Nelson; A. Odian; I. Ostrovskiy; K. O'Sullivan; C. Ouellet; A. Piepke; A. Pocar; C. Y. Prescott; K. Pushkin; P. C. Rowson; J. J. Russell; A. Sabourov; D. Sinclair; S. Slutsky; V. Stekhanov; T. Tolba; D. Tosi; K. Twelker; P. Vogel; J. -L. Vuilleumier; A. Waite; T. Walton; M. Weber; U. Wichoski; J. Wodin; J. D. Wright; L. Yang; Y. -R. Yen; O. Ya. Zeldovich

    2012-07-20T23:59:59.000Z

    We report on a search for neutrinoless double-beta decay of $^{136}$Xe with EXO-200. No signal is observed for an exposure of 32.5 kg-yr, with a background of ~1.5 x 10^{-3} /(kg yr keV) in the $\\pm 1\\sigma$ region of interest. This sets a lower limit on the half-life of the neutrinoless double-beta decay $T_{1/2}^{0\

  7. Reports

    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: National5Sales for4,645U.S. DOE Office of Scienceand Requirements Recently ApprovedReliability TechnologyRenewalReport Period:Reports

  8. Appointment: XXX I am pleased to confirm that Court at its meeting on xxx appointed you/noted your

    E-Print Network [OSTI]

    Halligan, Daniel

    Dear Appointment: XXX I am pleased to confirm that Court at its meeting on xxx appointed you/noted your appointment/election to the position of xxx with effect from xxx until xxx. Please find the Terms

  9. Beta

    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: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced Materials Find MoreLawrence Berkeley Industrial8 BestBestBest

  10. Has the Supreme Court pulled the rug from under the FERC's electric and natural gas regulation

    SciTech Connect (OSTI)

    Flax, L.

    1983-01-01T23:59:59.000Z

    The Supreme Court overruled a prior decision in the Attleboro Gap case, which had identified an area where state regulation would be a burden on interstate commerce and opened the way for federal regulation in Parts II and III of the Federal Power Act and the Natural Gas Act of 1938. In Arkansas Electric Cooperative Corporation (AECC) v. Arkansas Public Service Commission, the Court decided that there is a ''bright line'' between the point where state regulation of wholesale rates will be a burden on interstate commerce and where it will be tolerable. In shifting the emphasis from whether there is to whether there could be an interference with interstate commerce, the decision raises the question of who must make that determination and how it will affect administrative proceedings. There is not likely to be a major impact, but this will depend on state legislatures, commissions, regulated industries, and consumers. 19 references.

  11. A review of "Court and Politics in Papal Rome." by Gianvittorio Signorotto and Maria A. Visceglia, eds. 

    E-Print Network [OSTI]

    Erminia Ardissino

    2003-01-01T23:59:59.000Z

    . On the other hand, those individuals interested in the development of political culture may find their interests piqued but could also feel that many important questions were left unanswered. Gianvittorio Signorotto and Maria Antonietta Visceglia, eds. Court... palace committee. The changing force is put in evidence by the essay of Maria Antonietta Visceglia: ?Factions in the Sacred College in the Sixteenth and Seventeenth Centuries? (99-131). This extensive research proves that in the Roman court ?factions...

  12. A review of "Court and Politics in Papal Rome." by Gianvittorio Signorotto and Maria A. Visceglia, eds.

    E-Print Network [OSTI]

    Erminia Ardissino

    2003-01-01T23:59:59.000Z

    . On the other hand, those individuals interested in the development of political culture may find their interests piqued but could also feel that many important questions were left unanswered. Gianvittorio Signorotto and Maria Antonietta Visceglia, eds. Court... palace committee. The changing force is put in evidence by the essay of Maria Antonietta Visceglia: ?Factions in the Sacred College in the Sixteenth and Seventeenth Centuries? (99-131). This extensive research proves that in the Roman court ?factions...

  13. A review of "The Royal Doctors 1485-1714: Medical Personnel at the Tudor and Stuart Courts." by Lane Furdell

    E-Print Network [OSTI]

    Karol Weaver

    2003-01-01T23:59:59.000Z

    to Galileo in Context, to accumulate thorough and contextual accounts of Galileo?s achievements. Lane Furdell. The Royal Doctors 1485-1714: Medical Personnel at the Tudor and Stuart Courts. Rochester, NY: Elizabeth University of Rochester Press, 2001. 315... pp. $65.00. Review by KAROL WEAVER, PURDUE UNIVERSITY. Elizabeth Lane Furdell?s The Royal Doctors 1485-1714: Medical Personnel at the Tudor and Stuart Courts is a traditional history of England?s royal medical practitioners. Furdell provides...

  14. Method for preparing Pb-. beta. ''-alumina ceramic

    DOE Patents [OSTI]

    Hellstrom, E.E.

    1984-08-30T23:59:59.000Z

    A process is disclosed for preparing impermeable, polycrystalline samples of Pb-..beta..''-alumina ceramic from Na-..beta..''-alumina ceramic by ion exchange. The process comprises two steps. The first step is a high-temperature vapor phase exchange of Na by K, followed by substitution of Pb for K by immersing the sample in a molten Pb salt bath. The result is a polycrystalline Pb-..beta..''-alumina ceramic that is substantially crack-free.

  15. The impact of federal court decisions on the policies and administration of the United States Environmental Protection Agency

    SciTech Connect (OSTI)

    O'Leary, R.

    1988-01-01T23:59:59.000Z

    This work is the first comprehensive analysis of the impact of federal court decisions on the United States Environmental Protection Agency (EPA) in all seven of its major statutory areas. The work found first, that judicial intervention into disputes concerning the EPA fall into five groups: (1) cases in which the mere filing of a lawsuit, without judicial action, has evoked a changed in the EPA; (2) cases in which courts have upheld the agency's position completely without yielding changes in the agency; (3) cases in which judges, who have been passive and unwilling to intervene in the affairs of the EPA have issued decisions that nonetheless have affected the agency's policies and administration; (4) cases in which judges have legitimately used their discretionary powers to affect agency actions; and (5) cases in which judges have gone beyond the normal limits of judicial activism to evoke change in the agency. Second, the dissertation analyzed the ten ways that the EPA has responded to federal court decisions. Third, the dissertation found that the major impact of federal court decisions on the EPA has been policy related. Compliance with court orders has become the agency's top priority. Finally, the dissertation found that federal court decisions have affected the administration of the EPA in five ways.

  16. Spectroscopy of Double-Beta and Inverse-Beta Decays from 100Mo for Neutrinos

    E-Print Network [OSTI]

    H. Ejiri; J. Engel; R. Hazama; P. Krastev; N. Kudomi; R. G. H. Robertson

    2000-05-15T23:59:59.000Z

    Spectroscopic studies of two beta-rays from 100Mo are shown to be of potential interest for investigating both the Majorana neutrino mass by neutrinoless double beta-decay and low energy solar neutrino's by inverse beta-decay. With a multi-ton 100Mo detector, coincidence studies of correlated beta-beta from neutrinoless double beta-decay, together with the large Q value, permit identification of the neutrino-mass term with a sensitivity of ~ 0.03 eV. Correlation studies of the inverse beta and the successive beta-decay of 100Tc, together with the large capture rates for low energy solar neutrino's, make it possible to detect in realtime individual low energy solar neutrino in the same detector.

  17. BECCA V0.1 BETA

    Energy Science and Technology Software Center (OSTI)

    002399MLTPL00 Brain-Emulating Cognition and Control Architecture (BECCA) v. 0.2 beta  http://becca.sourceforge.net 

  18. Nuclear beta-decay measurements and |Vud|

    E-Print Network [OSTI]

    Dan Melconian

    2011-08-11T23:59:59.000Z

    Some recent work in nuclear beta decay related to the value of |Vud| is described along with some near-term goals for future measurements.

  19. The beta-decay of 22Al

    E-Print Network [OSTI]

    N. L. Achouri; F. de Oliveira Santos; M. Lewitowicz; B. Blank; J. Aysto; G. Canchel; S. Czajkowski; P. Dendooven; A. Emsallem; J. Giovinazzo; N. Guillet; A. Jokinen; A. M. Laird; C. Longour; K. Perajarvi; N. Smirnova; M. Stanoiu; J. C. Thomas

    2006-08-01T23:59:59.000Z

    In an experiment performed at the LISE3 facility of GANIL, we studied the decay of 22Al produced by the fragmentation of a 36Ar primary beam. A beta-decay half-life of 91.1 +- 0.5 ms was measured. The beta-delayed one- and two-proton emission as well as beta-alpha and beta-delayed gamma decays were measured and allowed us to establish a partial decay scheme for this nucleus. New levels were determined in the daughter nucleus 22Mg. The comparison with model calculations strongly favours a spin-parity of 4+ for the ground state of 22Al.

  20. Review of double beta decay experiments

    E-Print Network [OSTI]

    A. S. Barabash

    2014-03-12T23:59:59.000Z

    The brief review of current experiments on search and studying of double beta decay processes is done. Best present limits on $\\langle m_{\

  1. Operator Analysis of Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Kiwoon Choi; Kwang Sik Jeong; Wan Young Song

    2002-07-19T23:59:59.000Z

    We study the effective operators of the standard model fields which would yield an observable rate of neutrinoless double beta decay. We particularly focus on the possibility that neutrinoless double beta decay is dominantly induced by lepton-number-violating higher dimensional operators other than the Majorana neutrino mass. Our analysis can be applied to models in which neutrinoless double beta decay is induced either by a strong dynamics or by quantum gravity effects at a fundamental scale near the TeV scale as well as the conventional models in which neutrinoless double beta decay is induced by perturbative renormalizable interactions.

  2. Double beta decays of {sup 106}Cd

    SciTech Connect (OSTI)

    Suhonen, Jouni [Department of Physics, P.O. Box 35 (YFL), FI-40014 University of Jyvaeskylae (Finland)

    2011-12-16T23:59:59.000Z

    The two-neutrino (2{nu}2{beta}) and neutrinoless (0{nu}2{beta}) double beta decays of {sup 106}Cd are studied for the transitions to the ground state 0{sub gs}{sup +} and 0{sup +} and 2{sup +} excited states in {sup 106}Pd by using realistic many-body wave functions calculated in the framework of the quasiparticle random-phase approximation. Effective, G-matrix-derived nuclear forces are used in realistic single-particle model spaces. All the possible channels, {beta}{sup +}{beta}{sup +}, {beta}{sup +}EC, and ECEC, are discussed for both the 2{nu}2{beta} and 0{nu}2{beta} decays. The associated half-lives are computed and particular attention is devoted to the study of the detectability of the resonant neutrinoless double electron capture (R0{nu}ECEC) process in {sup 106}Cd. The calculations of the present article constitute the thus far most complete and up-to-date investigation of the double-beta-decay properties of {sup 106}Cd.

  3. Beta cell device using icosahedral boride compounds

    DOE Patents [OSTI]

    Aselage, Terrence L. (62 Avenida Del Sol, Cedar Crest, NM 87008); Emin, David (1502 Harvard Ct., NE., Albuquerque, NM 87106-3712)

    2002-01-01T23:59:59.000Z

    A beta cell for converting beta-particle energies into electrical energy having a semiconductor junction that incorporates an icosahedral boride compound selected from B.sub.12 As.sub.2, B.sub.12 P.sub.2, elemental boron having an .alpha.-rhombohedral structure, elemental boron having a .beta.-rhombohedral structure, and boron carbides of the chemical formula B.sub.12-x C.sub.3-x, where 0.15beta radiation source, and means for transmitting electrical energy to an outside load. The icosahedral boride compound self-heals, resisting degradation from radiation damage.

  4. Neutrinoless double beta decay and nuclear matrix elements

    SciTech Connect (OSTI)

    Simkovic, Fedor [BLTP, JINR Dubna, 141980 Dubna, Moscow region (Russian Federation); Comenius University, Mlynska dolina, Bratislava (Slovakia)

    2011-11-23T23:59:59.000Z

    The fundamental importance of searching for neutrinoless double-beta decay (0{nu}{beta}{beta}-decay) is widely recognized. Observation of the decay would tell us that the total lepton number is not conserved and that, consequently, neutrinos are massive Majorana fermions. The 0{nu}{beta}{beta}-decay is discussed in context of neutrino oscillation data. The perspectives of the experimental 0{nu}{beta}{beta}-decay searches are analyzed. The importance of reliable determination of the 0{nu}{beta}{beta}-decay nuclear matrix elements is pointed out.

  5. The nuclear matrix elements for neutrinoless double beta decay

    SciTech Connect (OSTI)

    Simkovic, Fedor [Department of Nuclear Physics and Biophysics, Comenius University, Mlynska dolina, SK-84248 Bratislava (Slovakia)

    2007-10-12T23:59:59.000Z

    The status of calculation of the neutrinoless double beta decay (0{nu}{beta}{beta}-decay) nuclear matrix elements (NME's) is reviewed. The spread of published values of NME's is discussed. The main attention is paid to the recent progress achieved in the evaluation of the 0{nu}{beta}{beta}-decay NME's in the framework of the quasiparticle random phase approximation (QRPA). The obtained results are compared with those of the nuclear shell model. The problem of reliable determination of the 0{nu}{beta}{beta}-decay NME's is addressed. The uncertainty in NME's are analyzed and further progress in calculation of the 0{nu}{beta}{beta}-decay NME's is outlined.

  6. Results from the Cuoricino (Zero-Neutrino Double Beta) Decay Experiment

    SciTech Connect (OSTI)

    Arnaboldi, C; Artusa, D R; Avignone, F T; Balata, M; Bandac, I; Barucci, M; Beeman, J W; Bellini, F; Brofferio, C; Bucci, C; Capelli, S; Carbone, L; Cebrian, S; Clemenza, M; Cremonesi, O; Creswick, R J; de Ward, A; Didomizio, S D; Dolinski, M J; Farach, H A; Fiorini, E; Frossati, G; Giachero, A; Giuliani, A; Gorla, P; Guardincerri, E; Gutierrez, T D; Haller, E E; Maruyama, R H; McDonald, R J; Nisi, S; Nones, C; Norman, E B; Nucciotti, A; Olivieri, E; Pallavicini, M; Palmieri, E; Pasca, E; Pavan, M; Pedretti, M; Pessina, G; Pirro, S; Previtali, E; Risegari, L; Rosenfeld, C; Sangiorgio, S; Sisti, M; Smith, A R; Torres, L; Ventura, G; Vignati, M

    2007-12-20T23:59:59.000Z

    Recent results from the CUORICINO {sup 130}Te zero-neutrino double-beta (0v{beta}{beta}) decay experiment are reported. CUORICINO is an array of 62 tellurium oxide (TeO{sub 2}) bolometers with an active mass of 40.7 kg. It is cooled to {approx}8 mK by a dilution refrigerator shielded from environmental radioactivity and energetic neutrons. It is running in the Laboratori Nazionali del Gran Sasso (LNGS) in Assergi, Italy. These data represent 11.83 kg y or 90.77 mole-years of {sup 130}Te. No evidence for 0v{beta}{beta}-decay was observed and a limit of T{sub 1/2}{sup 0v} ({sup 130}Te) {ge} 3.0 x 10{sup 24} y (90% C.L.) is set. This corresponds to upper limits on the effective mass, , between 0.19 and 0.68eV when analyzed with the many published nuclear structure calculations. In the context of these nuclear models, the values fall within the range corresponding to the claim of evidence of 0v{beta}{beta}-decay by H.V. Klapdor-Kleingrothaus and his co-workers. The experiment continues to acquire data.

  7. REPORT

    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 742EnergyOn April 23, 2014, an OHASeptember 2010In addition to 1 |D I S P U REPORT of the

  8. Nuclear physics aspects of double beta decay

    E-Print Network [OSTI]

    Petr Vogel

    2008-07-15T23:59:59.000Z

    Comprehensive description of the phenomenology of the $\\beta\\beta$ decay is given, with emphasis on the nuclear physics aspects. After a brief review of the neutrino oscillation results and of motivation to test the lepton number conservation, the mechanism of the $0\

  9. Beta dose distribution for randomly packed microspheres 

    E-Print Network [OSTI]

    Urashkin, Alexander

    2007-04-25T23:59:59.000Z

    Laboratory is used to simulate beta particle transport. Pr-142 is the beta source utilized for all calculations. The cylinder radii are 0.1, 0.15 and 0.3 cm and sphere radii are 0.03, 0.05 and 0.07 cm. The results are verified by examining limiting cases...

  10. Neutrino oscillations and neutrinoless double beta decay

    E-Print Network [OSTI]

    D. Falcone; F. Tramontano

    2001-03-16T23:59:59.000Z

    The relation between neutrino oscillation parameters and neutrinoless double beta decay is studied, assuming normal and inverse hierarchies for Majorana neutrino masses. For normal hierarchy the crucial dependence on U_{e3} is explored. The link with tritium beta decay is also briefly discussed.

  11. Neutrinoless double beta decay and neutrino physics

    E-Print Network [OSTI]

    Werner Rodejohann

    2012-08-20T23:59:59.000Z

    The connection of neutrino physics with neutrinoless double beta decay is reviewed. After presenting the current status of the PMNS matrix and the theoretical background of neutrino mass and lepton mixing, we will summarize the various implications of neutrino physics for double beta decay. The influence of light sterile neutrinos and other exotic modifications of the three neutrino picture is also discussed.

  12. Early and continuing effects of combined alpha and beta irradiation of the lung:

    SciTech Connect (OSTI)

    Scott, B.R.; Hahn, F.F.; Snipes, M.B.; Newton, G.J.; Eidson, A.F.; Mauderly, J.L.; Boecker, B.B.

    1988-03-01T23:59:59.000Z

    This report summarizes an inhalation exposure experiment that concerns early and continuing effects of combined alpha and beta irradiation of the lung of rats. Both morbidity at 18 months and mortality within 18 months after exposure were examined for rats exposed to the beta-emitter /sup 147/Pm, the alpha-emitter /sup 238/Pu, or both combined. The results were used to validate hazard-function models that were developed (1)for pulmonary functional morbidity at 18 months and (2) for lethality from radiation pneumonitis and pulmonary fibrosis within 18 months. Both models were found to adequately predict the experimental observations after combined chronic alpha and beta irradiation of the lung. A relative biological effectiveness of approximately 7 was obtained for /sup 238/Pu alpha radiation compared to /sup 147/Pm beta radiation for both pulmonary functional morbidity and lethality from radiation pneumonitis and pulmonary fibrosis. 12 refs., 16 figs., 11 tabs.

  13. Multipoint reweighting method and beta functions for the calculation of QCD equation of state

    E-Print Network [OSTI]

    Ryo Iwami; S. Ejiri; K. Kanaya; Y. Nakagawa; T. Umeda; D. Yamamoto

    2015-01-26T23:59:59.000Z

    We study a reweighting method aiming at numerical studies of QCD at finite density, in which the conventional Monte-Carlo method cannot be applied directly. One of the most important problems in the reweighting method is the overlap problem. To solve it, we propose to perform simulations at several simulation points and combine their results in the data analyses. In this report, we introduce this multipoint reweighting method and test if the method works well by measuring histograms of physical quantities. Using this method, we calculate the meson masses as continuous functions of the gauge coupling beta and the hopping parameters kappa in QCD at zero density. We then determine lines of constant physics in the (beta, kappa) space and evaluate the derivatives of the lattice spacing with respect to beta and kappa along the lines of constant physics (inverse of the beta functions), which are needed in a calculation of the equation of state.

  14. Gamma-ray blind beta particle probe

    DOE Patents [OSTI]

    Weisenberger, Andrew G. (Grafton, VA)

    2001-01-01T23:59:59.000Z

    An intra-operative beta particle probe is provided by placing a suitable photomultiplier tube (PMT), micro channel plate (MCP) or other electron multiplier device within a vacuum housing equipped with: 1) an appropriate beta particle permeable window; and 2) electron detection circuitry. Beta particles emitted in the immediate vicinity of the probe window will be received by the electron multiplier device and amplified to produce a detectable signal. Such a device is useful as a gamma insensitive, intra-operative, beta particle probe in surgeries where the patient has been injected with a beta emitting radiopharmaceutical. The method of use of such a device is also described, as is a position sensitive such device.

  15. Process for reducing beta activity in uranium

    DOE Patents [OSTI]

    Briggs, Gifford G. (Cincinnatti, OH); Kato, Takeo R. (Cincinnatti, OH); Schonegg, Edward (Cleves, OH)

    1986-01-01T23:59:59.000Z

    This invention is a method for lowering the beta radiation hazards associated with the casting of uranium. The method reduces the beta radiation emitted from the as-cast surfaces of uranium ingots. The method also reduces the amount of beta radiation emitters retained on the interiors of the crucibles that have been used to melt the uranium charges and which have undergone cleaning in a remote handling facility. The lowering of the radioactivity is done by scavenging the beta emitters from the molten uranium with a molten mixture containing the fluorides of magnesium and calcium. The method provides a means of collection and disposal of the beta emitters in a manner that reduces radiation exposure to operating personnel in the work area where the ingots are cast and processed.

  16. Process for reducing beta activity in uranium

    DOE Patents [OSTI]

    Briggs, G.G.; Kato, T.R.; Schonegg, E.

    1985-04-11T23:59:59.000Z

    This invention is a method for lowering the beta radiation hazards associated with the casting of uranium. The method reduces the beta radiation emitted from the as-cast surfaces of uranium ingots. The method also reduces the amount of beta radiation emitters retained on the interiors of the crucibles that have been used to melt the uranium charges and which undergone cleaning in a remote handling facility. The lowering of the radioactivity is done by scavenging the beta emitters from the molten uranium with a molten mixture containing the fluorides of magnesium and calcium. The method provides a means of collection and disposal of the beta emitters in a manner that reduces radiation exposure to operating personnel in the work area where the ingots are cast and processed. 5 tabs.

  17. Beta diversity of marine bacteria depends on temporal scale

    E-Print Network [OSTI]

    Hatosy, Stephen M; Martiny, Jennifer B. H; Sachdeva, Rohan; Steele, Joshua; Fuhrman, Jed A; Martiny, Adam C

    2013-01-01T23:59:59.000Z

    scales of aquatic bacterial beta diversity. Frontiers inthe multiple meanings of beta diversity: a roadmap for theCondit, R. , et al. 2002. Beta-diversity in tropical forest

  18. Phi Beta Kappa Initiation Address Wednesday June 4, 2014

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Phi Beta Kappa Initiation Address Wednesday June 4, 2014 Good of the College of William and Mary (where, I understand, Phi Beta Kappa was founded), and also a Phi Beta Kappa member. So I got some insider information

  19. BETA DECAY MEASUREMENTS OF NEUTRON DEFICIENT CESIUM ISOTOPES

    E-Print Network [OSTI]

    Parry, R.F.

    2010-01-01T23:59:59.000Z

    K. Siegbahn, Alpha-, Beta-, and Gamma-Ray Spectroscopy,Konopinski, The Theory of Beta Radioactivity, (ClarendonGamma-~ay ROS55 M.E. Rose, Beta- and Spectroscopy (editor,

  20. Neutrinoless Double Beta Decay in Light of SNO Salt Data

    E-Print Network [OSTI]

    Murayama, Hitoshi

    2009-01-01T23:59:59.000Z

    Limits From Neutrinoless Double-Beta Decay (Rev. ),” incan also cause neutrinoless double-beta decay (see e.g. , [LBNL-53996 Neutrinoless Double Beta Decay in Light of SNO

  1. A Search for Neutrinoless Double Beta Decay of Te-130

    E-Print Network [OSTI]

    Bryant, Adam Douglas

    2010-01-01T23:59:59.000Z

    A Search for Neutrinoless Double Beta Decay of Te by AdamA Search for Neutrinoless Double Beta Decay of CopyrightA Search for Neutrinoless Double Beta Decay of Te by Adam

  2. SIRT1 inhibits proliferation of pancreatic cancer cells expressing pancreatic adenocarcinoma up-regulated factor (PAUF), a novel oncogene, by suppression of {beta}-catenin

    SciTech Connect (OSTI)

    Cho, Il-Rae [WCU, Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735 (Korea, Republic of)] [WCU, Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735 (Korea, Republic of); Koh, Sang Seok [Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333 (Korea, Republic of) [Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333 (Korea, Republic of); Department of Functional Genomics, University of Science and Technology, Daejeon 305-333 (Korea, Republic of); Malilas, Waraporn; Srisuttee, Ratakorn; Moon, Jeong [WCU, Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735 (Korea, Republic of)] [WCU, Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735 (Korea, Republic of); Choi, Young-Whan [Department of Horticultural Bioscience, Pusan National University, Miryang 627-706 (Korea, Republic of)] [Department of Horticultural Bioscience, Pusan National University, Miryang 627-706 (Korea, Republic of); Horio, Yoshiyuki [Department of Pharmacology, Sapporo Medical University, Sapporo 060-8556 (Japan)] [Department of Pharmacology, Sapporo Medical University, Sapporo 060-8556 (Japan); Oh, Sangtaek [Department of Advanced Fermentation Fusion Science and Technology, Kookmin University, Seoul 136-702 (Korea, Republic of)] [Department of Advanced Fermentation Fusion Science and Technology, Kookmin University, Seoul 136-702 (Korea, Republic of); Chung, Young-Hwa, E-mail: younghc@pusan.ac.kr [WCU, Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735 (Korea, Republic of)] [WCU, Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735 (Korea, Republic of)

    2012-06-29T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer SIRT1 inhibits protein levels of {beta}-catenin and its transcriptional activity. Black-Right-Pointing-Pointer Nuclear localization of SIRT1 is not required for the decrease of {beta}-catenin expression. Black-Right-Pointing-Pointer SIRT1-mediated degradation of {beta}-catenin is not required for GSK-3{beta} and Siah-1 but for proteosome. Black-Right-Pointing-Pointer SIRT1 activation inhibits proliferation of pancreatic cancer cells expressing PAUF. -- Abstract: Because we found in a recent study that pancreatic adenocarcinoma up-regulated factor (PAUF), a novel oncogene, induces a rapid proliferation of pancreatic cells by up-regulation of {beta}-catenin, we postulated that {beta}-catenin might be a target molecule for pancreatic cancer treatment. We thus speculated whether SIRT1, known to target {beta}-catenin in a colon cancer model, suppresses {beta}-catenin in those pancreatic cancer cells that express PAUF (Panc-PAUF). We further evaluated whether such suppression would lead to inhibition of the proliferation of these cells. The ectopic expression of either SIRT1 or resveratrol (an activator of SIRT1) suppressed levels of {beta}-catenin protein and its transcriptional activity in Panc-PAUF cells. Conversely, suppression of SIRT1 expression by siRNA enhanced {beta}-catenin expression and transcriptional activity. SIRT1 mutant analysis showed that nuclear localization of SIRT1 is not required for reduction of {beta}-catenin. Treatment with MG132, a proteasomal inhibitor, restored {beta}-catenin protein levels, suggesting that SIRT1-mediated degradation of {beta}-catenin requires proteasomal activity. It was reported that inhibition of GSK-3{beta} or Siah-1 stabilizes {beta}-catenin in colon cancer cells, but suppression of GSK-3{beta} or Siah-1 using siRNA in the presence of resveratrol instead diminished {beta}-catenin protein levels in Panc-PAUF cells. This suggests that GSK-3{beta} and Siah-1 are not involved in SIRT1-mediated degradation of {beta}-catenin in the cells. Finally, activation of SIRT1 inhibited the proliferation of Panc-PAUF cells by down-regulation of cyclin-D1, a target molecule of {beta}-catenin. These results suggest that SIRT1 activation may be a therapeutic strategy for treatment of pancreatic cancer cells that express PAUF via the down-regulation of {beta}-catenin.

  3. amyloid beta levels: Topics by E-print Network

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

    Summary: Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into...

  4. amyloid beta peptides: Topics by E-print Network

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

    Summary: Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into...

  5. amyloid beta protein: Topics by E-print Network

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

    Summary: Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into...

  6. amyloid beta toxicity: Topics by E-print Network

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

    Summary: Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into...

  7. atp synthase beta: Topics by E-print Network

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

    Summary: Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into...

  8. amyloid beta peptide: Topics by E-print Network

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

    Summary: Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into...

  9. acid receptor beta: Topics by E-print Network

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

    Summary: Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into...

  10. approaching beta saturation: Topics by E-print Network

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

    calorimeters is a promising approach to achieve ultimate sensitivity in neutrinoless double beta decay experiments. We propose Cerenkov emission from beta rays in bolometric...

  11. Search for: "neutrinoless double beta decay" | DOE PAGES

    Office of Scientific and Technical Information (OSTI)

    neutrinoless double beta decay" Find + Advanced Search Advanced Search All Fields: "neutrinoless double beta decay" Title: Full Text: Bibliographic Data: Creator Author: Name...

  12. Using courts to build states: The competing spaces of citizenship in transitional justice programmes

    E-Print Network [OSTI]

    Jeffrey, Alex; Jakala, Michaelina

    2015-03-13T23:59:59.000Z

    area ifsense of the failure of the state to secure the rights that were not only imagined by NGO members to derive from state but were also part of the claims made for the establishment of the CBiH. Spaces of citizenship While communicating universal... , such as the European Court of Human Rights (ECHR). This latter jurisdiction is open to both victims of war crimes seeking compensation but also, as in the 2008 case Maktouf and Dam- janovi#3;c vs. Bosnia and Herzegovina (see ECHR, 2008), for convicted war criminals...

  13. Neutrinoless Double Beta Decay and Neutrino Masses

    E-Print Network [OSTI]

    Michael Duerr

    2012-06-04T23:59:59.000Z

    Neutrinoless double beta decay is a promising test for lepton number violating physics beyond the standard model of particle physics. There is a deep connection between this decay and the phenomenon of neutrino masses. In particular, we will discuss the relation between neutrinoless double beta decay and Majorana neutrino masses provided by the so-called Schechter--Valle theorem in a quantitative way. Furthermore, we will present an experimental cross check to discriminate neutrinoless double beta decay from unknown nuclear background using only one isotope, i.e., within one experiment.

  14. Chemical effects on the K{beta}{sup ''} and K{beta}{sub 2,5} x-ray lines of titanium and its compounds

    SciTech Connect (OSTI)

    Mandic, Luka; Fazinic, Stjepko; Jaksic, Milko [Physics Department, University of Rijeka, Omladinska 14, HR-51000 Rijeka (Croatia); Rudjer Boskovic Institute, Bijenicka cesta 54, HR-10000 Zagreb (Croatia)

    2009-10-15T23:59:59.000Z

    High-resolution K{beta} x-ray spectra induced by 2 MeV protons in thick Ti, TiO, Ti{sub 2}O{sub 3}, TiO{sub 2}, MgTiO{sub 3}, FeTiO{sub 3}, TiC, TiN, and TiB{sub 2} targets were measured using a wavelength dispersive spectrometer combined with a position-sensitive detector. The intensities and energies of the K{beta}{sub 2,5} and K{beta}{sup ''} lines relative to the K{beta}{sub 1,3} line were extracted. The influence of self-absorption in thick targets was investigated using related x-ray-absorption near-edge-structure spectra that are available in the literature to extract mass absorption coefficients close to the K absorption edge. The correlation of the relative position of the K{beta}{sub 2,5} line with a titanium formal oxidation state in oxide compounds confirmed that the oxidation state of Ti in FeTiO{sub 3} is probably a mixture of Ti III and Ti IV states, which has been recently reported by other authors using different methods. The strengths of the K{beta}{sub 2,5} and K{beta}{sup ''} transition probabilities per titanium-ligand pair were found to decrease exponentially as the average titanium-ligand bond distance increased, which is similar to results obtained for various compounds with vanadium or manganese as the central 3d metal atoms.

  15. Phase Space Factors for Double Beta Decay: an up-date

    E-Print Network [OSTI]

    M. Mirea; T. Pahomi; S. Stoica

    2015-01-23T23:59:59.000Z

    We give a complete, up-date list of the phase space factors (PSF) for beta-beta-, beta+beta+, EC beta+ and ECEC double beta decay (DBD) modes, in all nuclei of interest and possible transitions to final states. In calculation, the Coulomb distortion of the electron wave functions is treated by solving numerically the Dirac equation with inclusion of the finite nuclear size and electron screening effects. In addition to the previous calculations we use a Coulomb potential derived from a realistic proton density distribution in nucleus, improve the precision of the numerical routines used to solve the Dirac equations and to integrate the PSF expressions, and use recently reported Q-values. These ingredients proved to be important, leading in many cases to significant differences as compared to the present available PSF values, which are discussed as well. Accurate values of the PSF are necessary ingredients both for theorists, to improve the DBD lifetime predictions and constraint the neutrino parameters, and for experimentalists to plan their set-ups.

  16. Neuronal networks with coupling through amyloid beta: towards a theory for Alzheimer's disease

    E-Print Network [OSTI]

    V. Resmi; G. Ambika; R. E. Amritkar; G. Rangarajan

    2010-11-18T23:59:59.000Z

    Alzheimer's disease (AD) is a common form of dementia observed in the elderly due to neurodegenerative disorder and dysfunction. This arises from alterations in synaptic functioning of neurons leading to cognitive impairment and memory loss. Recent experimental studies indicate that the amyloid beta (A beta) protein, in its dimer and oligomer forms, affects the synaptic activity of neurons in the early stages of AD. However, the precise mechanism underlying A beta induced synaptic depression is still not clearly understood. In this paper, we introduce an electrical model that provides a possible mechanism for this. Our studies show that the competing effects of synaptic activity and the indirect interaction mediated by A beta, can disrupt the synchrony among neurons and severely affect the neuronal activity. This then leads to sub-threshold activity or synaptic silencing. This is in agreement with the reported disruption of cortical synaptic integration in the presence of A beta in transgenic mice. We suggest that direct electrophysiological measurements of A beta activity can establish its role in AD and the possible revival, proposed in our model. The mechanism proposed here is quite general and could account for the role of the relevant protein in other neuronal disorders also.

  17. Solid-state NMR analysis of the {beta}-strand orientation of the protofibrils of amyloid {beta}-protein

    SciTech Connect (OSTI)

    Doi, Takashi [Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)] [Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan); Masuda, Yuichi, E-mail: masuda@mail.pharm.tohoku.ac.jp [Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan) [Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan); Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai 980-8578 (Japan); Irie, Kazuhiro [Graduate School of Agriculture, Kyoto University, Kyoto 606-8502 (Japan)] [Graduate School of Agriculture, Kyoto University, Kyoto 606-8502 (Japan); Akagi, Ken-ichi; Monobe, Youko; Imazawa, Takayoshi [Section of Laboratory Equipment, Division of Biomedical Research, National Institute of Biomedical Innovation, Osaka 567-0085 (Japan)] [Section of Laboratory Equipment, Division of Biomedical Research, National Institute of Biomedical Innovation, Osaka 567-0085 (Japan); Takegoshi, K. [Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)] [Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)

    2012-11-30T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer The supramolecular structure of A{beta}42 protofibrils was analyzed by solid-state NMR. Black-Right-Pointing-Pointer The Ala-21 residue in the A{beta}42 protofibrils is included in a slightly disordered {beta}-strand. Black-Right-Pointing-Pointer The A{beta}42 protofibrils do not form intermolecular in-register parallel {beta}-sheets. -- Abstract: Alzheimer's disease (AD) is caused by abnormal deposition (fibrillation) of a 42-residue amyloid {beta}-protein (A{beta}42) in the brain. During the process of fibrillation, the A{beta}42 takes the form of protofibrils with strong neurotoxicity, and is thus believed to play a crucial role in the pathogenesis of AD. To elucidate the supramolecular structure of the A{beta}42 protofibrils, the intermolecular proximity of the Ala-21 residues in the A{beta}42 protofibrils was analyzed by {sup 13}C-{sup 13}C rotational resonance experiments in the solid state. Unlike the A{beta}42 fibrils, an intermolecular {sup 13}C-{sup 13}C correlation was not found in the A{beta}42 protofibrils. This result suggests that the {beta}-strands of the A{beta}42 protofibrils are not in an in-register parallel orientation. A{beta}42 monomers would assemble to form protofibrils with the {beta}-strand conformation, then transform into fibrils by forming intermolecular parallel {beta}-sheets.

  18. On beta-deformations and Noncommutativity

    E-Print Network [OSTI]

    Manuela Kulaxizi

    2006-10-30T23:59:59.000Z

    We elucidate the connection between the N=1 beta-deformed SYM theory and noncommutativity. Our starting point is the T-duality generating transformation involved in constructing the gravity duals of both beta-deformed and noncommutative gauge theories. We show that the two methods can be identified provided that a particular submatrix of the O(3,3,R) group element employed in the former case, is interpreted as the noncommutativity parameter associated with the deformation of the transverse space. It is then explained how to construct the matrix in question, relying solely on information extracted from the gauge theory Lagrangian and basic notions of AdS/CFT. This result may provide an additional tool in exploring deformations of the N=4 SYM theory. Finally we use the uncovered relationship between beta-deformations and noncommutativity to find the gravity background dual to a noncommutative gauge theory with beta-type noncommutativity parameter.

  19. Phenomenology of neutrinoless double beta decay

    E-Print Network [OSTI]

    J. J. Gómez-Cadenas; Justo Martín-Albo

    2015-02-25T23:59:59.000Z

    This paper reviews the current status and future outlook of neutrinoless double beta decay searches, which try to provide an answer to the fundamental question of whether neutrinos are Dirac or Majorana particles.

  20. Probing neutrinoless double beta decay with SNO+

    E-Print Network [OSTI]

    Evelina Arushanova; Ashley R. Back

    2015-05-01T23:59:59.000Z

    Probing neutrinoless double beta decay is one of the primary goals for SNO+, SNOLAB's multi-purpose neutrino detector. In order to achieve this goal the SNO detector has been adapted so that it can be filled with Te-loaded liquid scintillator. During the initial double beta phase the target loading is 0.3% natural Te, which equates to $\\sim790$ kg of double beta isotope. Estimating the sensitivity to neutrinoless double beta decay requires a well understood background model. For SNO+ this is provided by a comprehensive study considering all possible background contributions, whether they originate from within the liquid scintillator cocktail, the surrounding parts of the detector or other irreducible backgrounds. Given these considerations, for five years running in the initial phase, the expected sensitivity is $T_{1/2}^{0\

  1. Probing neutrinoless double beta decay with SNO+

    E-Print Network [OSTI]

    Arushanova, Evelina

    2015-01-01T23:59:59.000Z

    Probing neutrinoless double beta decay is one of the primary goals for SNO+, SNOLAB's multi-purpose neutrino detector. In order to achieve this goal the SNO detector has been adapted so that it can be filled with Te-loaded liquid scintillator. During the initial double beta phase the target loading is 0.3% natural Te, which equates to $\\sim790$ kg of double beta isotope. Estimating the sensitivity to neutrinoless double beta decay requires a well understood background model. For SNO+ this is provided by a comprehensive study considering all possible background contributions, whether they originate from within the liquid scintillator cocktail, the surrounding parts of the detector or other irreducible backgrounds. Given these considerations, for five years running in the initial phase, the expected sensitivity is $T_{1/2}^{0\

  2. Phenomenology of neutrinoless double beta decay

    E-Print Network [OSTI]

    Gómez-Cadenas, J J

    2015-01-01T23:59:59.000Z

    This paper reviews the current status and future outlook of neutrinoless double beta decay searches, which try to provide an answer to the fundamental question of whether neutrinos are Dirac or Majorana particles.

  3. CP Violation in Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    T. Fukuyama; K. Matsuda; H. Nishiura

    1997-08-19T23:59:59.000Z

    We argue three-flavour neutrino mixing. We consider the neutrinos as Majorana particles and see how the neutrinoless double beta decay constrains the neutrino mixing angles. Our formulation is widely valid and is applied to the neutrino oscillation experiment.

  4. {beta}-delayed neutron decay of {sup 19}N and {sup 20}N

    SciTech Connect (OSTI)

    Sumithrarachchi, C. S.; Anthony, D. W.; Lofy, P. A.; Morrissey, D. J. [National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States) and Department of Chemistry, Michigan State University, East Lansing, Michigan 48824 (United States)

    2006-08-15T23:59:59.000Z

    The results of the first spectroscopic studies of delayed neutron and {gamma} emission following the {beta} decay of {sup 19}N and {sup 20}N are reported. Nuclides were produced by fragmenting an 80 MeV/nucleon {sup 22}Ne beam in a 546 mg/cm{sup 2} thick Be target and were separated at high velocities with the A1200 fragment separator. The nuclides were implanted in a thin plastic scintillator at the center of an array of neutron scintillators to determine the neutron time-of-flight spectrum. Two hyperpure germanium detectors were used to observe coincident {gamma} events. The {beta}-{gamma},{beta}-n, and {beta}-n-{gamma} coincidence spectra were analyzed to obtain the energies of the states populated in {sup 18}O, {sup 19}O, and {sup 20}O following the {beta} decay. Eight new neutron energies with a total neutron emission probability of 41.8(9)%, six {gamma} transitions among the excited states of {sup 19}O, and four {gamma} transitions among the excited states of {sup 18}O were identified in the {sup 19}N {beta} decay. Seven new neutron energies with a total neutron emission probability of 42.9(14)%, ten {gamma} transitions among the excited states of {sup 20}O, and two {gamma} transitions among the exited states of {sup 19}O were observed from the {sup 20}N {beta} decay. Half-lives of 336(3) and 136(3) ms were determined for the {sup 19}N and {sup 20}N decays, respectively. The branching ratios of both decays were deduced and compared with USD (universal sd-shell) shell model calculations. The {beta} decay schemes for {sup 19}N and {sup 20}N were de0011duc.

  5. Method for treating beta-spodumene ceramics

    DOE Patents [OSTI]

    Day, J. Paul (Big Flats, NY); Hickman, David L. (Big Flats, NY)

    1994-09-27T23:59:59.000Z

    A vapor-phase method for treating a beta-spodumene ceramic article to achieve a substitution of exchangeable hydrogen ions for the lithium present in the beta-spodumene crystals, wherein a barrier between the ceramic article and the source of exchangeable hydrogen ions is maintained in order to prevent lithium contamination of the hydrogen ion source and to generate highly recoverable lithium salts, is provided.

  6. Neutrinoless double beta decay with scalar bilinears

    E-Print Network [OSTI]

    H. V. Klapdor-Kleingrothaus; U. Sarkar

    2002-11-18T23:59:59.000Z

    One possible probe to physics beyond the standard model is to look for scalar bilinears, which couple to two fermions of the standard model. We point out that the scalar bilinears allow new diagrams contributing to the neutrinoless double beta decay. The upper bound on the neutrinoless double beta decay lifetime would then give new constraints on the ratio of the masses of these scalars to their couplings to the fermions.

  7. Neutrinoless Double Beta Decay and CP Violation

    E-Print Network [OSTI]

    Patrick J. O'Donnell; Utpal Sarkar

    1993-05-27T23:59:59.000Z

    We study the relation between the Majorana neutrino mass matrices and the neutrinoless double beta decay when CP is not conserved. We give an explicit form of the decay rate in terms of a rephasing invariant quantity and demonstrate that in the presence of CP violation it is impossible to have vanishing neutrinoless double beta decay in the case of two neutrino generations (or when the third generation leptons do not mix with other leptons and hence decouple).

  8. Beta/alpha continuous air monitor

    DOE Patents [OSTI]

    Becker, Gregory K. (Idaho Falls, ID); Martz, Dowell E. (Grand Junction, CO)

    1989-01-01T23:59:59.000Z

    A single deep layer silicon detector in combination with a microcomputer, recording both alpha and beta activity and the energy of each pulse, distinguishing energy peaks using a novel curve fitting technique to reduce the natural alpha counts in the energy region where plutonium and other transuranic alpha emitters are present, and using a novel algorithm to strip out radon daughter contribution to actual beta counts.

  9. Beta/alpha continuous air monitor

    DOE Patents [OSTI]

    Becker, G.K.; Martz, D.E.

    1988-06-27T23:59:59.000Z

    A single deep layer silicon detector in combination with a microcomputer, recording both alpha and beta activity and the energy of each pulse, distinquishing energy peaks using a novel curve fitting technique to reduce the natural alpha counts in the energy region where plutonium and other transuranic alpha emitters are present, and using a novel algorithm to strip out radon daughter contribution to actual beta counts. 7 figs.

  10. False Starts in History of Searches for 2{beta} Decay, or Discoverless Double Beta Decay

    SciTech Connect (OSTI)

    Tretyak, V. I. [Institute for Nuclear Research, MSP 03680, Kyiv (Ukraine)

    2011-12-16T23:59:59.000Z

    A collection of stories is presented on discoveries of 2{beta} decay (including neutrinoless one) which were refuted in the subsequent investigations.

  11. Polypeptides having beta-glucosidase activity and polynucleotides encoding same

    DOE Patents [OSTI]

    Morant, Marc Dominique

    2014-10-14T23:59:59.000Z

    The present invention relates to isolated polypeptides having beta-glucosidase activity, beta-xylosidase activity, or beta-glucosidase and beta-xylosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.

  12. Double Beta Decay Experiments Department of Physics and Astronomy

    E-Print Network [OSTI]

    Piepke, Andreas G.

    1 Double Beta Decay Experiments A. Piepkea a Department of Physics and Astronomy University. The experimen- tal investigation of the nuclear double beta decay is one of the key techniques for solving, such as the evaluation of the beta spec- tra near their endpoint, or neutrinoless double beta decay. The latter technique

  13. Phi Beta Delta Honor Society for International Scholars

    E-Print Network [OSTI]

    de Lijser, Peter

    Phi Beta Delta Honor Society for International Scholars Beta Chapter, California State University for Beta Chapter Student Internationalist Awards Deadline: April 1 These awards are presented on an annual basis each Spring to the outstanding student members of Phi Beta Delta who have demonstrated achievement

  14. PHI BETA KAPPA INITIATION CEREMONY April 21, 2012

    E-Print Network [OSTI]

    Feingold, Alex

    PHI BETA KAPPA INITIATION CEREMONY April 21, 2012 PRESIDENT, ALEX FEINGOLD: Welcome to the Phi Beta language. Phi Beta Kappa itself was founded in 1776, and the initiation of new members continues to follow some of the original script. Fellow members of Phi Beta Kappa: We are assembled for the purpose

  15. Beta-conjugates of real algebraic numbers as Puiseux expansions

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Beta-conjugates of real algebraic numbers as Puiseux expansions Jean-Louis Verger-Gaugry Abstract. The beta-conjugates of a base of numeration > 1, being a Parry number, were introduced by Boyd, in the context of the R´enyi-Parry dynamics of numeration system and the beta-transformation. These beta

  16. TLG Beta Code Quick Reference Guide Revised: July 16, 2009

    E-Print Network [OSTI]

    Loudon, Catherine

    TLG Beta Code Quick Reference Guide Revised: July 16, 2009 This document provides a quick reference to Beta Code and its Unicode equivalents. For a comprehensive overview of Beta Code, please see the TLG Beta Code Manual. Unicode equivalents are correct as of Unicode 5.1. Table of Contents Notes

  17. Computer code for double beta decay QRPA based calculations

    E-Print Network [OSTI]

    Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

    . The Enriched Xenon Observatory for neutrinoless double beta decay (EXO) will search for the rare decays

  18. A ton-scale bolometric detector for the search for neutrinoless double beta decay

    SciTech Connect (OSTI)

    Pedretti, M. [Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550 (United States)

    2009-12-16T23:59:59.000Z

    After an introduction on neutrinoless double beta decay physics, a description of CUORE and CUORICINO experiments, detectors and results are reported. The actual efforts and next steps of the CUORE Project, required to probe the inverted hierarchy region of the neutrino effective Majorana mass, are also described.

  19. Conformal invariance of the planar beta-deformed N=4 SYM theory requires beta real

    E-Print Network [OSTI]

    Federico Elmetti; Andrea Mauri; Silvia Penati; Alberto Santambrogio; Daniela Zanon

    2006-06-14T23:59:59.000Z

    We study the \\cal{N}=1 SU(N) SYM theory which is a marginal deformation of the \\cal{N}=4 theory, with a complex deformation parameter \\beta. We consider the large N limit and study perturbatively the conformal invariance condition. We find that finiteness requires reality of the deformation parameter \\beta.

  20. Quasiparticle random phase approximation uncertainties and their correlations in the analysis of 0{nu}{beta}{beta} decay

    SciTech Connect (OSTI)

    Faessler, Amand; Rodin, V. [Institute of Theoretical Physics, University of Tuebingen, 72076 Tuebingen (Germany); Fogli, G. L.; Rotunno, A. M. [Dipartimento Interateneo di Fisica 'Michelangelo Merlin', Via Amendola 173, 70126 Bari (Italy); Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Via Orabona 4, 70126 Bari (Italy); Lisi, E. [Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Via Orabona 4, 70126 Bari (Italy); Simkovic, F. [Institute of Theoretical Physics, University of Tuebingen, 72076 Tuebingen (Germany); Bogoliubov Laboratory of Theoretical Physics, JINR, 141980 Dubna (Russian Federation); Department of Nuclear Physics, Comenius University, Mlynska dolina F1, SK-842 15 Bratislava (Slovakia)

    2009-03-01T23:59:59.000Z

    The variances and covariances associated to the nuclear matrix elements of neutrinoless double beta decay (0{nu}{beta}{beta}) are estimated within the quasiparticle random phase approximation. It is shown that correlated nuclear matrix elements uncertainties play an important role in the comparison of 0{nu}{beta}{beta} decay rates for different nuclei, and that they are degenerate with the uncertainty in the reconstructed Majorana neutrino mass.

  1. Characterization of ZnSe scintillating bolometers for Double Beta Decay

    E-Print Network [OSTI]

    C. Arnaboldi; S. Capelli; O. Cremonesi; L. Gironi; M. Pavan; G. Pessina; S. Pirro

    2010-06-30T23:59:59.000Z

    ZnSe scintillating bolometers are good candidates for future Double Beta Decay searches, because of the 82Se high Q-value and thanks to the possibility of alpha background rejection on the basis of the scintillation signal. In this paper we report the characteristics and the anomalies observed in an extensive study of these devices. Among them, an unexpected high emission from alpha particles, accompanied with an unusual pattern of the light vs. heat scatter plot. The perspectives for the application of this kind of detectors to search for the Neutrinoless Double Beta Decay of 82Se are presented.

  2. Structure of {sup 81}Ga populated from the {beta}{sup -} decay of {sup 81}Zn

    SciTech Connect (OSTI)

    Paziy, V.; Mach, H.; Fraile, L. M.; Olaizola, B.; Udias, J. M. [Grupo de Fisica Nuclear, Universidad Complutense, Madrid (Spain); Aprahamian, A.; Bucher, B. [Department of Physics, University of Notre Dame (United States); Bernards, C. [Institut fuer Kernphysik, Koeln, Germany. and Wright Nuclear Structure Laboratory, Yale University, New Haven, CT-06520 (United States); Briz, J. A. [Instituto de Estructura de la Materia, CSIC, Madrid (Spain); Chiara, C. J. [Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland, USA. and Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Dlouhy, Z. [Nuclear Physics Institute of the ASCR, Rez (Czech Republic); Gheorghe, I.; Ghita, D.; Lica, R.; Marginean, N.; Marginean, R.; Stanoiu, M.; Stroe, L. [National Institute for Physics and Nuclear Engineering, Magurele (Romania); Hoff, P. [Department of Chemistry, University of Oslo, Oslo (Norway); Koester, U. [Institut Laue Langevin, 6 Rue Jules Horowitz, F-38042 Grenoble Cedex 9 (France); and others

    2013-06-10T23:59:59.000Z

    We report on the results of the {beta}-decay of {sup 81}Zn. The experiment was performed at the CERN ISOLDE facility in the framework of a systematic ultra-fast timing investigation of neutron-rich nuclei populated in the decay of Zn. The present analysis included {beta}-gated {gamma}-ray singles and {gamma}-{gamma} coincidences from the decay of {sup 81}Zn to {sup 81}Ga and leads to a new and much more extensive level scheme of {sup 81}Ga. A new half-life of {sup 81}Zn is provided.

  3. Observation of Two-Neutrino Double-Beta Decay in Xe-136 with EXO-200

    SciTech Connect (OSTI)

    Ackerman, N.; /SLAC; Aharmim, B.; /Laurentian U.; Auger, M.; /Bern U.; Auty, D.J.; /Alabama U.; Barbeau, P.S.; Barry, K.; Bartoszek, L.; /Stanford U., Phys. Dept.; Beauchamp, E.; /Laurentian U.; Belov, V.; /Moscow, ITEP; Benitez-Medina, C.; /Colorado State U.; Breidenbach, M.; /SLAC; Burenkov, A.; /Moscow, ITEP; Cleveland, B.; /Laurentian U.; Conley, R.; Conti, E.; /SLAC; Cook, J.; /Massachusetts U., Amherst; Cook, S.; /Colorado State U.; Coppens, A.; /Carleton U.; Counts, I.; /Stanford U., Phys. Dept.; Craddock, W.; /SLAC; Daniels, T.; /Massachusetts U., Amherst /Moscow, ITEP /Maryland U. /Stanford U., Phys. Dept. /Alabama U. /Maryland U. /Moscow, ITEP /Stanford U., Phys. Dept. /Laurentian U. /Carleton U. /Colorado State U. /Laurentian U. /Munich, Tech. U. /Bern U. /SLAC /Bern U. /Carleton U. /Stanford U., Phys. Dept. /Carleton U. /Maryland U. /Colorado State U. /SLAC /Carleton U. /SLAC /Alabama U. /SLAC /Moscow, ITEP /Indiana U. /Stanford U., Phys. Dept. /Moscow, ITEP /Stanford U., Phys. Dept. /Massachusetts U., Amherst /Seoul U. /Carleton U. /Stanford U., Phys. Dept.; /more authors..

    2012-09-14T23:59:59.000Z

    We report the observation of two-neutrino double-beta decay in {sup 136}Xe with T{sub 1/2} = 2.11 {+-} 0.04(stat) {+-} 0.21(syst) x 10{sup 21} yr. This second-order process, predicted by the standard model, has been observed for several nuclei but not for {sup 136}Xe. The observed decay rate provides new input to matrix element calculations and to the search for the more interesting neutrinoless double-beta decay, the most sensitive probe for the existence of Majorana particles and the measurement of the neutrino mass scale.

  4. Energy Consumption Analysis of the Habitat For Humanity Homes at Frazier Court Dallas, Texas

    E-Print Network [OSTI]

    Mukhopadhyay, Jaya; Liu, Zi; Baltazar, Juan Carlos; Haberl, Jeff; Lewis, Cynthia; Bahman, Yazdani

    Jaya Mukhopadhyay Zi Liu Juan-Carlos Baltazar Jeff Haberl Cynthia Lewis Bahman Yazdani Energy Systems Laboratory Texas A&M University System August 2010 Energy Consumption Analysis of the Habitat For Humanity Homes at Frazier Court... : kWh/yr = 0.03492 x CFA + 29.565 x (Nbr + 1) Where CFA = Conditioned floor area Nbr = Number of Bedrooms B ac k g ro u n d C o n cl u si o n s R es u lt s H o u se D es . S o u rc e: h tt p :/ /e n er g y so lu ti o n sn m .c o m /s er...

  5. Plate tectonics and offshore boundary delimitation: Tunisia-Libya case at the International Court of Justice

    SciTech Connect (OSTI)

    Stanley, D.J.

    1983-03-01T23:59:59.000Z

    Advances in the technology for exploiting resources of the oceans, particularly recovery of hydrocarbons and minerals in deep water, is benefiting a growing number of nations. At the same time, however, economic and political pressures have induced concern and there is now a much increased emphasis on jurisdiction to divide the offshore areas between the 132 coastal nations. Negotiations affect research operations at sea and, in consequence, marine scientists have been made aware of offshore problems as highlighted by the Law of the Sea Treaty (UNCLOS III) and complications arising from the legal versus scientific definitions of continental shelves and margins. The first major offshore boundary case of international scope where plate tectonics has constituted a significant argument is the one recently brought before the International Court of Justice by Libya and Tunisia concerning the delimitation of their continental shelves. Of the two parties, Libya placed the greatest emphasis on this concept as a means to determine natural prolongation of its land territory into and under the sea. Tunisia contested Libya's use of the whole of the African continental landmass as a reference unit; in Tunisia's view, considerations of geography, geomorphology, and bathymetry are at least as relevant as are those of geology. In its landmark judgment (February 1982) - which almost certainly will have far-reaching consequences in future such boundary delimitation cases - the court pronounced that It is the outcome, not the evolution in the long-distant past, which is of importance, and that it is the present-day configuration of the coasts and sea bed which are the main factors to be considered, not geology.

  6. Protein Beta-Sheets Predicted in 1951 by Pauling et Al. using standard bond length and

    E-Print Network [OSTI]

    Guermeur, Yann

    Protein Beta-Sheets Predicted in 1951 by Pauling et Al. using standard bond length and valence configuration of polypeptide chains, PNAS (USA) 37 (1951) 251256. #12;Protein Beta-Sheets P A #12;Protein Beta-Sheets #12;Beta-Bulge #12;Beta-Helix PDB code 1QCX #12;Beta-Propeller PDB code 1HXN #12;Beta-Sandwich PDB

  7. Phenomenology of neutrinoless double beta decay

    E-Print Network [OSTI]

    M. Hirsch

    2006-09-15T23:59:59.000Z

    Neutrinoless double beta decay violates lepton number by two units, a positive observation therefore necessarily implies physics beyond the standard model. Here, three possible contributions to neutrinoless double beta decay are briefly reviewed: (a) The mass mechanism and its connection to neutrino oscillations; (b) Left-right symmetric models and the lower limit on the right-handed W boson mass; and (c) R-parity violating supersymmetry. In addition, the recently published ``extended black box'' theorem is briefly discussed. Combined with data from oscillation experiments this theorem provides proof that the neutrinoless double beta decay amplitude must receive a non-zero contribution from the mass mechanism, if neutrinos are indeed Majorana particles.

  8. Recent Results in Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Lisa J. Kaufman

    2013-05-14T23:59:59.000Z

    The search for neutrinoless double beta decay is a rich source for new physics. The observation of this decay will lead to understanding of the absolute mass scale of neutrinos, the Majorana nature of the neutrino (whether the neutrino is its own anti-particle), and lepton number violation. Double beta decay is being investigated around the world by several experiments using different candidate isotopes. There has been much progress made in experimental techniques recently such that achieving sensitivity to neutrino masses at 50 meV and below will be possible in the near future. A summary of recent results in neutrinoless double beta decay is discussed with a look toward the experimental goals for the future.

  9. $\\beta$ Energy Loss Analysis in ${15}^P$: Application to Nuclear Batteries

    E-Print Network [OSTI]

    Mirfayzi, Seyed Reza

    2012-01-01T23:59:59.000Z

    Using radioactive nuclei for electricity generation in Microelectromechanical Systems (MEMS) is important research as needs for longer life batteries increase. There are many applications developed in recent years, however there are limitations still to overcome before a final product can be produced. One of the important issue is the low power output. This research addresses this issue with a new method in fabrication for powering MEMS sensors. We have proposed to fabricate $^{63}Ni$ nano-particle $\\beta^-$source in a glassy phosphorous type sphere which creates scintillation and phosphorescent photons. The micro-spheres will be doped in our semiconductor. Since $^{63}^Ni$ is a pure $\\beta^-$ emitter, in this report the energy loss $dE/dx$ of $\\beta^-$ in our scintillation material (phosphorus $^{15}P$) is modelled using C++ coding with GEANT4 and furthermore the particle distributions in two different source geometries (circular and square structure) is studied using Finite Element Analysis (FEA). We have s...

  10. Method of producing .beta.-spodumene bodies

    DOE Patents [OSTI]

    Chyung, Kenneth (Painted Post, NY); Day, J. Paul (Big Flats, NY); Holleran, Louis M. (Big Flats, NY); Olszewski, Anthony R. (Bath, NY)

    1999-01-01T23:59:59.000Z

    Beta-spodumene bodies and method of preparing the bodies that involves providing a uniform plastic batch of inorganic raw materials, organic binder, and vehicle, wherein the inorganic raw materials are composed of, in percent by weight, about 75% to 95% minerals, and about 5% to 25% glass. The batch is formed into a green body that is fired to produce a body composed substantially of beta-spodumene, and having a thermal expansion coefficient of <10.times.10.sup.-7 /.degree.C.(0-800.degree. C.), and a strength of .gtoreq.4 Ksi.

  11. Simulated progress in double-beta decay

    SciTech Connect (OSTI)

    Miley, H.S.; Arthur, R.J. [Pacific Northwest Lab., Richland, WA (United States); Avignone, F.T. [South Carolina Univ., Columbia, SC (United States)] [and others

    1993-09-01T23:59:59.000Z

    A Monte Carlo code has been developed to accurately simulate double-beta decay measurements. Coincident gamma rays, beta spectra, and angular correlations have been added to adequately simulate a complete {sup 100}Mo nuclear decay and provide corrections to experimentally determined detector efficiencies. This code has been used to strip certain low-background spectra obtained in the Homestake gold mine in Lead, SD, for the purpose of extremely sensitive materials assay for the construction of new, large, enriched germanium detectors. Assays as low as 9 {mu}Bq/g of {sup 210}Pb in lead shielding were obtained.

  12. Low beta spoke cavity multipacting analysis

    E-Print Network [OSTI]

    Xu Bo; Li Han; Zhang Juan; Sha Peng; Wang Qunyao; Lin Haiying; Huang Hong; Dai Jianping; Sun Yi; Wang Guangwei; Pan Weimin

    2013-03-27T23:59:59.000Z

    The simulation and analysis for electron multipacting phenomenon in low {\\beta} spoke superconducting cavity in ADS proton accelerator are proposed. Using both CST and Track3P codes, the electron multipacting calculation for {\\beta} = 0.12 spoke superconducting cavity is implemented. The methods of multipacting calculation on both codes are studied and described. With the comparison between the calculation results and the cavity vertical test results, the accuracy and reliability of different code on calculating multipacting are analyzed. Multipacting calculation can help to understand the result of vertical test and also can help to do the optimation in cavity design.

  13. The double-beta decay: Theoretical challenges

    SciTech Connect (OSTI)

    Horoi, Mihai [Department of Physics, Central Michigan University, Mount Pleasant, Michigan, 48859 (United States)

    2012-11-20T23:59:59.000Z

    Neutrinoless double beta decay is a unique process that could reveal physics beyond the Standard Model of particle physics namely, if observed, it would prove that neutrinos are Majorana particles. In addition, it could provide information regarding the neutrino masses and their hierarchy, provided that reliable nuclear matrix elements can be obtained. The two neutrino double beta decay is an associate process that is allowed by the Standard Model, and it was observed for about ten nuclei. The present contribution gives a brief review of the theoretical challenges associated with these two process, emphasizing the reliable calculation of the associated nuclear matrix elements.

  14. Poly(ADP-ribose)polymerase-1 modulates microglial responses to amyloid beta

    E-Print Network [OSTI]

    2011-01-01T23:59:59.000Z

    Palop JJ, Mucke L: Amyloid-beta-induced neuronal dysfunctionbeta1 promotes microglial amyloid-beta clearance and reducesactivation depends on beta-amyloid conformation: role of the

  15. Constraints on light neutrino parameters derived from the study of neutrinoless double beta decay

    E-Print Network [OSTI]

    Stoica, Sabin

    2014-01-01T23:59:59.000Z

    The study of the neutrinoless double beta ($0 \\beta\\beta$) decay mode can provide us with important information on the neutrino properties, particularly on the electron neutrino absolute mass. In this work we revise the present constraints on the neutrino mass parameters derived from the $0 \\beta\\beta$ decay analysis of the experimentally interesting nuclei. We use the latest results for the phase space factors (PSFs) and nuclear matrix elements (NMEs), as well as for the experimental lifetimes limits. For the PSFs we use values computed with an improved method reported very recently. For the NMEs we use values chosen from literature on a case-by-case basis, taking advantage of the consensus reached by the community on several nuclear ingredients used in their calculation. Thus, we try to restrict the range of spread of the NME values calculated with di?erent methods and, hence, to reduce the uncertainty in deriving limits for the Majorana neutrino mass parameter. Our results may be useful to have an up-date ...

  16. Narrow Bandgap in beta-BaZn2As2 and Its Chemical Origins

    E-Print Network [OSTI]

    Xiao, Zewen; Ueda, Shigenori; Toda, Yoshitake; Ran, Fan-Yong; Guo, Jiangang; Lei, Hechang; Matsuishi, Satoru; Hosono, Hideo; Kamiya, Toshio

    2015-01-01T23:59:59.000Z

    Beta-BaZn2As2 is known to be a p-type semiconductor with the layered crystal structure similar to that of LaZnAsO, leading to the expectation that beta-BaZn2As2 and LaZnAsO have similar bandgaps; however, the bandgap of beta-BaZn2As2 (previously-reported value ~0.2 eV) is one order of magnitude smaller than that of LaZnAsO (1.5 eV). In this paper, the reliable bandgap value of beta-BaZn2As2 is determined to be 0.23 eV from the intrinsic region of the tem-perature dependence of electrical conductivity. The origins of this narrow bandgap are discussed based on the chemi-cal bonding nature probed by 6 keV hard X-ray photoemission spectroscopy, hybrid density functional calculations, and the ligand theory. One origin is the direct As-As hybridization between adjacent [ZnAs] layers, which leads to a secondary splitting of As 4p levels and raises the valence band maximum. The other is that the non-bonding Ba 5dx2-y2 orbitals form unexpectedly deep conduction band minimum (CBM) in beta-BaZn2As2 although the CBM of L...

  17. The three-dimensional structure of MAP kinase p38[beta]: different features of the ATP-binding site in p38[beta] compared with p38[alpha

    SciTech Connect (OSTI)

    Patel, Sangita B.; Cameron, Patricia M.; O'Keefe, Stephen J.; Frantz-Wattley, Betsy; Thompson, Jed; O'Neill, Edward A.; Tennis, Trevor; Liu, Luping; Becker, Joseph W.; Scapin, Giovanna; Merck

    2010-10-18T23:59:59.000Z

    The p38 mitogen-activated protein kinases are activated in response to environmental stress and cytokines and play a significant role in transcriptional regulation and inflammatory responses. Of the four p38 isoforms known to date, two (p38{alpha} and p38{beta}) have been identified as targets for cytokine-suppressive anti-inflammatory drugs. Recently, it was reported that specific inhibition of the p38{alpha} isoform is necessary and sufficient for anti-inflammatory efficacy in vivo, while further inhibition of p38{beta} may not provide any additional benefit. In order to aid the development of p38{alpha}-selective compounds, the three-dimensional structure of p38{beta} was determined. To do so, the C162S and C119S,C162S mutants of human MAP kinase p38{beta} were cloned, expressed in Escherichia coli and purified. Initial screening hits in crystallization trials in the presence of an inhibitor led upon optimization to crystals that diffracted to 2.05 {angstrom} resolution and allowed structure determination (PDB codes 3gc8 and 3gc9 for the single and double mutant, respectively). The structure of the p38{alpha} C162S mutant in complex with the same inhibitor is also reported (PDB code 3gc7). A comparison between the structures of the two kinases showed that they are highly similar overall but that there are differences in the relative orientation of the N- and C-terminal domains that causes a reduction in the size of the ATP-binding pocket in p38{beta}. This difference in size between the two pockets could be exploited in order to achieve selectivity.

  18. Peroxisome proliferator-activated receptor {gamma} is expressed in hippocampal neurons and its activation prevents {beta}-amyloid neurodegeneration: role of Wnt signaling

    SciTech Connect (OSTI)

    Inestrosa, Nibaldo C. [Centro FONDAP de Regulacion Celular y Patologia 'Joaquin V. Luco', Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile) and MIFAB, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile) and Departamento de Biologia Celular y Molecular, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile)]. E-mail: ninestr@genes.bio.puc.cl; Godoy, Juan A. [Centro FONDAP de Regulacion Celular y Patologia 'Joaquin V. Luco', Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile); MIFAB, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile); Departamento de Biologia Celular y Molecular, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile); Quintanilla, Rodrigo A. [Centro FONDAP de Regulacion Celular y Patologia 'Joaquin V. Luco', Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile); MIFAB, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile); Departamento de Biologia Celular y Molecular, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile); Koenig, Cecilia S. [Departamento de Biologia Celular y Molecular, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile); Bronfman, Miguel [Centro FONDAP de Regulacion Celular y Patologia 'Joaquin V. Luco', Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile); MIFAB, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile); Departamento de Biologia Celular y Molecular, Facultad de Ciencias Biologicas, Pontificia Universidad Catolica de Chile, Santiago (Chile)

    2005-03-10T23:59:59.000Z

    The molecular pathogenesis of Alzheimer's disease (AD) involves the participation of the amyloid-{beta}-peptide (A{beta}), which plays a critical role in the neurodegeneration that triggers the disease. Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors, which are members of the nuclear receptor family. We report here that (1) PPAR{gamma} is present in rat hippocampal neurons in culture. (2) Activation of PPAR{gamma} by troglitazone and rosiglitazone protects rat hippocampal neurons against A{beta}-induced neurodegeneration, as shown by the 3-[4,5 -2yl]-2,5-diphenyltetrazolium bromide (MTT) reduction assay, immunofluorescence using an anti-heavy neurofilament antibody, and quantitative electron microscopy. (3) Hippocampal neurons treated with several PPAR{gamma} agonists, including troglitazone, rosiglitazone, and ciglitazone, prevent the excitotoxic A{beta}-induced rise in bulk-free Ca{sup 2+}. (4) PPAR{gamma} activation results in the modulation of Wnt signaling components, including the inhibition of glycogen synthase kinase-3{beta} (GSK-3{beta}) and an increase of the cytoplasmic and nuclear {beta}-catenin levels. We conclude that the activation of PPAR{gamma} prevents A{beta}-induced neurodegeneration by a mechanism that may involve a cross talk between neuronal PPAR{gamma} and the Wnt signaling pathway. More important, the fact that the activation of PPAR{gamma} attenuated A{beta}-dependent neurodegeneration opens the possibility to fight AD from a new therapeutic perspective.

  19. Effects of plasma {beta} on the plasmoid instability

    SciTech Connect (OSTI)

    Ni Lei [Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011 (China); Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China); Ziegler, Udo [Leibniz-Institut fuer Astrophysik Potsdam, DE 14482 Potsdam (Germany); Huang Yimin [Space Science Center, University of New Hampshire, Durham, New Hampshire 03824 (United States); Lin Jun; Mei Zhixing [Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650011 (China)

    2012-07-15T23:59:59.000Z

    The effects of the initial upstream plasma {beta} on the plasmoid instability are studied via two-dimensional resistive magnetohydrodynamic simulations. For cases with nonuniform {beta} dependent initial plasma mass density and uniform temperature, our numerical results indicate that the critical Lundquist number for onset of the plasmoid instability depends on the initial plasma {beta}. The critical Lundquist number is approximately 2000-3000 for {beta}=50 and is 8000-10 000 for {beta}=0.2. The higher the {beta}, the smaller the critical Lundquist number is. Similar to previous studies of high-{beta} systems, the average reconnection rate in low {beta} systems is found to become weakly dependent on the Lundquist number in the plasmoid-unstable regime. However, the average reconnection rate, normalized to the asymptotic value of upstream BV{sub A}, is lower in a low {beta} system than that in a high {beta} system. The magnetic energy spectral index, which characterizes fragmentation of the reconnection layer, is approximately two and is insensitive to {beta} in the high-Lunquist number regime. It is also found that the magnetic reconnection rate becomes similar for different {beta} cases, if the initial force-balance is provided by temperature gradient instead of density gradient. Therefore, it is concluded that the {beta}-dependence mentioned above may be largely attributed to the density variation.

  20. Correcting the LHC beta* at Collision

    E-Print Network [OSTI]

    Verdier, A; Zimmermann, Frank

    2003-01-01T23:59:59.000Z

    To correct the beta* at the main collision points (IP1 and IP5) simultaneously for the two counterrotating proton beams in the Large Hadron Collider (LHC), a set of specific quadrupoles in the non-common part of the machine is used. Due to the antisymmetric optics, several quadrupoles on each side of the insertion have to be employed. The change of beta* is accomplished by incrementing the quadrupole gradients. This set of increments is referred to as beta* tuning knob. The increments were calculated by rematching beta* in a range of + 20 % about the nominal value. Linear curves were fitted to the variation of increments to construct a linear tuning knob. This was done for each plane using MAD 8 [1] and repeated with MAD X [2]. The linear behaviour and the orthogonality of the knobs were investigated for the LHC lattices V6.2 and V6.4. Different field errors were introduced in the lattice and the correction efficiency of the knobs was studied.

  1. Beta Functions of Topologically Massive Supergravity

    E-Print Network [OSTI]

    R. Percacci; M. J. Perry; C. N. Pope; E. Sezgin

    2013-02-20T23:59:59.000Z

    We compute the one-loop beta functions of the cosmological constant, Newton's constant and the topological mass in topologically massive supergravity in three dimensions. We use a variant of the proper time method supplemented by a simple choice of cutoff function. We find that the dimensionless coefficient of the Chern-Simons term, $\

  2. Charge Radii of beta-Stable Nuclei

    E-Print Network [OSTI]

    G. K. Nie

    2005-12-07T23:59:59.000Z

    In previous work it was shown that the radius of nucleus R is determined by the alpha-cluster structure and can be estimated on the number of alpha-clusters disregarding to the number of excess neutrons. A hypothesis also was made that the radius R_m of a beta-stable isotope, which is actually measured at electron scattering experiments, is determined by the volume occupied by the matter of the core plus the volume occupied by the peripheral alpha-clusters. In this paper it is shown that the condition R_m = R restricts the number of excess neutrons filling the core to provide the beta-stability. The number of peripheral clusters can vary from 1 to 5 and the value of R for heavy nuclei almost do not change, whereas the number of excess neutrons should change with the number of peripheral clusters to get the value of R_m close to R. It can explain the path of the beta-stability and its width. The radii R_m of the stable isotopes with 12 =< Z =< 83 and the alpha-decay isotopes with 84 =< Z =< 116 that are stable to beta-decay have been calculated.

  3. Neutrinoless double beta decay in seesaw models

    E-Print Network [OSTI]

    Mattias Blennow; Enrique Fernandez-Martinez; Jacobo Lopez-Pavon; Javier Menendez

    2014-05-12T23:59:59.000Z

    We study the general phenomenology of neutrinoless double beta decay in seesaw models. In particular, we focus on the dependence of the neutrinoless double beta decay rate on the mass of the extra states introduced to account for the Majorana masses of light neutrinos. For this purpose, we compute the nuclear matrix elements as functions of the mass of the mediating fermions and estimate the associated uncertainties. We then discuss what can be inferred on the seesaw model parameters in the different mass regimes and clarify how the contribution of the light neutrinos should always be taken into account when deriving bounds on the extra parameters. Conversely, the extra states can also have a significant impact, cancelling the Standard Model neutrino contribution for masses lighter than the nuclear scale and leading to vanishing neutrinoless double beta decay amplitudes even if neutrinos are Majorana particles. We also discuss how seesaw models could reconcile large rates of neutrinoless double beta decay with more stringent cosmological bounds on neutrino masses.

  4. The COBRA Double Beta Decay Experiment

    SciTech Connect (OSTI)

    Dawson, J. V. [Department of Physics and Astronomy, University of Sussex, Brighton. BN1 9QH (United Kingdom)

    2007-03-28T23:59:59.000Z

    The progress of the COBRA neutrinoless double beta decay experiment is discussed. Potential backgrounds are described. Estimates on the contamination levels of 214Bi in the detectors have been made using previously acquired low background data. New crystals with a different passivation material show an improved background count rate of approximately one order of magnitude.

  5. .beta.-glucosidase 5 (BGL5) compositions

    DOE Patents [OSTI]

    Dunn-Coleman, Nigel; Goedegebuur, Frits; Ward, Michael; Yao, Jian

    2010-06-01T23:59:59.000Z

    The present invention provides a novel .beta.-glucosidase nucleic acid sequence, designated bgl5, and the corresponding BGL5 amino acid sequence. The invention also provides expression vectors and host cells comprising a nucleic acid sequence encoding BGL5, recombinant BGL5 proteins and methods for producing the same.

  6. adrenergic beta-agonists: Topics by E-print Network

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

    adrenergic beta-agonists First Page Previous Page 1 2 3 4 5 6 7 8 9 10 Next Page Last Page Topic Index 1 Perindopril regulates beta-agonist-induced cardiac apoptosis . Open Access...

  7. Alpha phase precipitation from phase-separated beta phase in...

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

    Alpha phase precipitation from phase-separated beta phase in a model Ti-Mo-Al alloy studied by direct coupling of transmission Alpha phase precipitation from phase-separated beta...

  8. adrenergic beta-antagonists: Topics by E-print Network

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

    adrenergic beta-antagonists First Page Previous Page 1 2 3 4 5 6 7 8 9 Next Page Last Page Topic Index 1 Gln(27)-> Glu beta(2)-Adrenergic Receptor Polymorphism in Heart Failure...

  9. Striatal origin of the pathologic beta oscillations in Parkinson's disease

    E-Print Network [OSTI]

    Boyden, Edward Stuart

    Enhanced oscillations at beta frequencies (8–30 Hz) are a signature neural dynamic pathology in the basal ganglia and cortex of Parkinson's disease patients. The mechanisms underlying these pathological beta oscillations ...

  10. Neutrinoless Double Beta Decay in Light of SNO Salt Data

    E-Print Network [OSTI]

    Murayama, Hitoshi

    2009-01-01T23:59:59.000Z

    Beta Decay in Light of SNO Salt Data Hitoshi Murayama andBeta Decay in Light of SNO Salt Data Hitoshi Murayama ? andIn the SNO data from its salt run, probably the most signi?

  11. Comparing radiative and recoil corrections in neutron beta-decay and inverse beta-decay

    E-Print Network [OSTI]

    U. Raha; F. Myhrer; K. Kubodera

    2014-05-06T23:59:59.000Z

    The inverse $\\beta$-decay reaction, anti-nu_e + p --> e^+ + n, for low-energy anti-neutrinos coming from nuclear reactors is of great current interest in connection with high-precision measurements of the neutrino mixing angle $\\theta_{13}$. We have previously derived analytic expressions, up to next-to-leading order in heavy-baryon chiral perturbation theory, for the radiative corrections (RCs) and the nucleon-recoil corrections both for this reaction and for the related neutron $\\beta$-decay process. We investigate here the numerical consequences of these analytic expressions. We show that the recoil corrections are small for neutron $\\beta$-decay, but for inverse $\\beta$-decay, the recoil corrections are comparable in size to the RCs for typical energies of reactor anti-neutrinos, and they have opposite signs. It turns out that the RCs and the recoil corrections exhibit very different dependences on the neutrino energy.

  12. Status of Beta Beam R&D: Radioactive ion production

    E-Print Network [OSTI]

    McDonald, Kirk

    Status of Beta Beam R&D: Radioactive ion production O b h lf f EURISOL DS*/ISOLDE CERN Etam NOAH Infrastructure Action Structuring the European Research Area" g , y , Status of BetaBeam R&D AHIPA09 etam Status of BetaBeam R&D AHIPA09 etam.noah@esss.se #12;Introduction to betabeams Beta-beam proposal

  13. The Neutrinoless Double Beta Decay: The Case for Germanium Detectors

    E-Print Network [OSTI]

    A. Morales; J. Morales

    2002-11-21T23:59:59.000Z

    An overview of the current status of Neutrinoless Double Beta Decay is presented, emphasizing on the case of Germanium Detectors.

  14. Neutrinoless Double Beta Decay and Physics Beyond the Standard Model

    E-Print Network [OSTI]

    Frank F. Deppisch; Martin Hirsch; Heinrich Päs

    2012-08-03T23:59:59.000Z

    Neutrinoless double beta decay is the most powerful tool to probe not only for Majorana neutrino masses but for lepton number violating physics in general. We discuss relations between lepton number violation, double beta decay and neutrino mass, review a general Lorentz invariant parametrization of the double beta decay rate, highlight a number of different new physics models showing how different mechanisms can trigger double beta decay, and finally discuss possibilities to discriminate and test these models and mechanisms in complementary experiments.

  15. Search for neutrinoless double beta decay with NEMO 3 experiment

    E-Print Network [OSTI]

    Zornitza Daraktchieva

    2009-01-18T23:59:59.000Z

    NEMO 3 experiment is designed to search for neutrinoless double beta decay. It is located in the Modane Underground Laboratory (LSM) and has been taking data since February 2003. The half- lives of two neutrino beta decay have been measured for seven isotopes. No evidence of neutrinoless double beta decay has been found. The limits on both the half-lives of the neutrinoless double beta decay and the corresponding Majorana effective masses are derived

  16. Overconstrained estimates of neutrinoless double beta decay within the QRPA

    E-Print Network [OSTI]

    Amand Faessler; Gianluigi Fogli; Eligio Lisi; Vadim Rodin; Anna Maria Rotunno; Fedor Simkovic

    2008-05-29T23:59:59.000Z

    Estimates of nuclear matrix elements for neutrinoless double beta decay (0nu2beta) based on the quasiparticle random phase approximations (QRPA) are affected by theoretical uncertainties, which can be substantially reduced by fixing the unknown strength parameter g_pp of the residual particle-particle interaction through one experimental constraint - most notably through the two-neutrino double beta decay (2nu2beta) lifetime. However, it has been noted that the g_pp adjustment via 2\

  17. Filed 7/24/08 (this opn. should precede S042224, also filed 7/24/08) IN THE SUPREME COURT OF CALIFORNIA

    E-Print Network [OSTI]

    Kammen, Daniel M.

    to permit the 1 As we shall explain, Miller-El's matter first reached the United States Supreme Court time limits on counsel's questioning and either require or permit counsel to ask group questions

  18. Updated: 1/12/11 The Department of Recreational Sports maintains 15 different outdoor facilities which include basketball courts, cricket pitches, jogging paths, sand

    E-Print Network [OSTI]

    Jones, Michelle

    60 acres of grass fields/softball and baseball diamond, and there is one synthetic rubber infill turf (lighted) - Two (2) courts Lincoln Tower Park (lighted) ·Infill synthetic turf field (shared with Ohio

  19. Legal Pluralism, Cultural Contestation and Gender (In)justice: An Interpretation of Women?s Rights Cases in the Supreme Court of Nepal

    E-Print Network [OSTI]

    Pradhan, Rajendra

    2010-10-20T23:59:59.000Z

    activists filed numerous public interest litigations pertaining to women’s rights and gender justice in the Supreme Court of Nepal. These cases concerned a wide range of issues, including ancestral property, marriage, divorce, marital rape, sexual harassment...

  20. Right tail expansion of Tracy-Widom beta laws

    E-Print Network [OSTI]

    Gaëtan Borot; Céline Nadal

    2011-11-11T23:59:59.000Z

    Using loop equations, we compute the large deviation function of the maximum eigenvalue to the right of the spectrum in the Gaussian beta matrix ensembles, to all orders in 1/N. We then give a physical derivation of the all order asymptotic expansion of the right tail Tracy-Widom beta laws, for all positive beta, by studying the double scaling limit.

  1. Low beta diversity of herbivorous insects in tropical forests

    E-Print Network [OSTI]

    Basset, Yves

    LETTERS Low beta diversity of herbivorous insects in tropical forests Vojtech Novotny1 , Scott E) and fruit (fruitflies, Diptera) found a low rate of change in species composition (beta diversity) across 75 of kilo- metres. Low beta diversity was also documented in groups with differing host specificity

  2. High Beta Observations of the Hot Electron Interchange Instability

    E-Print Network [OSTI]

    High Beta Observations of the Hot Electron Interchange Instability E.E. Ortiz, M.E. Mauel, D observed in high-beta plasma created in the Levitated Dipole Experiment (LDX). We have previously of anisotropic high beta equilibrium · Measuring Electrostatic Fluctuations · Hot Electron Interchange (HEI

  3. Method for conversion of .beta.-hydroxy carbonyl compounds

    DOE Patents [OSTI]

    Lilga, Michael A. (Richland, WA); White, James F. (Richland, WA); Holladay, Johnathan E. (Kennewick, WA); Zacher, Alan H. (Kennewick, WA); Muzatko, Danielle S. (Kennewick, WA); Orth, Rick J. (Kennewick, WA)

    2010-03-30T23:59:59.000Z

    A process is disclosed for conversion of salts of .beta.-hydroxy carbonyl compounds forming useful conversion products including, e.g., .alpha.,.beta.-unsaturated carbonyl compounds and/or salts of .alpha.,.beta.-unsaturated carbonyl compounds. Conversion products find use, e.g., as feedstock and/or end-use chemicals.

  4. Hierarchical Beta Processes and the Indian Buffet Romain Thibaux

    E-Print Network [OSTI]

    Sekhon, Jasjeet S.

    Hierarchical Beta Processes and the Indian Buffet Process Romain Thibaux Computer Science Division Department of Statistics November 5, 2006 Abstract We show that the beta process is the de Finetti mixing distribution underlying the Indian buffet process of [2]. This result shows that the beta process plays

  5. Beta Advection-Diffusion Model Columbia Basin Research

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Beta Advection-Diffusion Model Jim Norris Columbia Basin Research University of Washington Box Model (SSM) is loosely called a Beta Advection-Diffusion model. The SSM estimates a single parameter this single parameter characterized fish migration. The purpose of this note is to define the Beta Advection

  6. The Majorana Neutrinoless Double-Beta Decay Experiment

    E-Print Network [OSTI]

    Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

    The Majorana Neutrinoless Double-Beta Decay Experiment Pre-conceptual Design Proposal November 22 Motivation for Neutrinoless Double-Beta Decay Experiments . . . . . . . . . 4 2.1.1 Community Guidance Neutrinoless Double-Beta Decay Results . . . . . . . . . . . . . . . . . . . . 12 2.5 Next

  7. High precision measurements of Na-26 beta(-) decay 

    E-Print Network [OSTI]

    Grinyer, GF; Svensson, CE; Andreoiu, C.; Andreyev, AN; Austin, RAE; Ball, GC; Chakrawarthy, RS; Finlay, P.; Garrett, PE; Hackman, G.; Hardy, John C.; Hyland, B.; Iacob, VE; Koopmans, KA; Kulp, WD; Leslie, JR; Macdonald, JA; Morton, AC; Ormand, WE; Osborne, CJ; Pearson, CJ; Phillips, AA; Sarazin, F.; Schumaker, MA; Scraggs, HC; Schwarzenberg, J.; Smith, MB; Valiente-Dobon, JJ; Waddington, JC; Wood, JL; Zganjar, EF.

    2005-01-01T23:59:59.000Z

    High-precision measurements of the half-life and beta-branching ratios for the beta(-) decay of Na-26 to Mg-26 have been measured in beta-counting and gamma-decay experiments, respectively. A 4 pi proportional counter and fast tape transport system...

  8. Sensitivity of CUORE to Neutrinoless Double-Beta Decay

    E-Print Network [OSTI]

    Alessandria, F.

    2013-01-01T23:59:59.000Z

    of CUORE to Neutrinoless Double-Beta Decay b c,:L d e f F .s t results on neutrinoless double beta decay of T e w i t hthe study of neutrinoless double beta decay, J . C r y s t .

  9. Polypeptides having beta-glucosidase activity and polynucleotides encoding same

    DOE Patents [OSTI]

    Morant, Marc

    2014-01-14T23:59:59.000Z

    The present invention relates to isolated polypeptides having beta-glucosidase activity, beta-xylosidase, or beta-glucosidase activity and isolated polynucleotides encoding polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.

  10. Neutrinoless double-{beta} decay: Status and future

    SciTech Connect (OSTI)

    Bilenky, S. M. [Joint Institute for Nuclear Research (Russian Federation)], E-mail: bilenky@he.sissa.it

    2006-12-15T23:59:59.000Z

    A brief summary of the status of neutrino masses, mixing, and oscillations is presented. Neutrinoless double {beta} decay is considered. Predictions for the effective Majorana mass are reviewed. A possible test of the calculations of nuclear matrix elements of the 0{nu}{beta}{beta} decay is proposed.

  11. Global episodic beta/gamma synchrony 1 Freeman & Rogers A neurobiological theory of meaning in perception.

    E-Print Network [OSTI]

    Freeman, Walter J.

    Global episodic beta/gamma synchrony 1 Freeman & Rogers A neurobiological theory of meaning words: analytic phase, beta oscillation, EEG synchronization, gamma oscillation, Hilbert transform, phase transition Running Title: Global episodic beta/gamma synchrony #12;Global episodic beta

  12. Beta distribution (from http://www.math.wm.edu/~leemis/chart/UDR/UDR.html) The shorthand X beta(,) is used to indicate that the random variable X has the beta distribution

    E-Print Network [OSTI]

    Leemis, Larry

    Beta distribution (from http://www.math.wm.edu/~leemis/chart/UDR/UDR.html) The shorthand X beta(,) is used to indicate that the random variable X has the beta distribution with parameters beta and gamma. A beta random variable X with positive shape parameters and has probability density function f

  13. Results of the radiological survey at 9 Branca Court, Lodi, New Jersey (LJ042)

    SciTech Connect (OSTI)

    Foley, R.D.; Floyd, L.M.; Carrier, R.F.

    1989-11-01T23:59:59.000Z

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally {sup 232}Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 9 Branca Court, Lodi, New Jersey (LJ042), was conducted during 1985 and 1986. 4 refs., 7 figs., 3 tabs.

  14. Results of the radiological survey at 6 Branca Court, Lodi, New Jersey (LJ041)

    SciTech Connect (OSTI)

    Foley, R.D.; Floyd, L.M.; Carrier, R.F.; Crutcher, J.W.

    1989-06-01T23:59:59.000Z

    Maywood Chemical works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rate earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally /sup 232/Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 6 Branca Court, Lodi, New Jersey (LJ041), was conducted during 1985 and 1986. Results of the survey demonstrated radionuclide concentrations in excess of the DOE Formerly Utilized Sites Remedial Act program criteria. The radionuclide distributions are typical of the type of material originating from the MCW site. 6 figs., 3 tabs.

  15. Results of the radiological survey at 3 Branca Court, Lodi, New Jersey (LJ038)

    SciTech Connect (OSTI)

    Foley, R.D.; Floyd, L.M.; Carrier, R.F.

    1989-10-01T23:59:59.000Z

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally {sup 232}Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 3 Branca Court, Lodi, New Jersey (LJ038), was conducted during 1985 and 1986. 4 refs., 4 figs., 3 tabs.

  16. Results of the radiological survey at 2 Branca Court, Lodi, New Jersey (LJ036)

    SciTech Connect (OSTI)

    Foley, R.D.; Floyd, L.M.; Carrier, R.F.; Crutcher, J.W.

    1989-06-01T23:59:59.000Z

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1961 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally /sup 232/Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 2 Branca Court, Lodi, New Jersey (LJ036), was conducted during 1985 and 1986. Results of the survey demonstrated radionuclide concentrations in excess of the DOE Formerly Utilized Sites Remedial Action Program criteria. The radionuclide distributions are typical of the type of material originating from the MCW site.

  17. Results of the radiological survey at 1 Branca Court, Lodi, New Jersey (LJ034)

    SciTech Connect (OSTI)

    Foley, R.D.; Floyd, L.M.; Carrier, R.F.

    1989-10-01T23:59:59.000Z

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally {sup 232}Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 1 Branca Court, Lodi, New Jersey (LJ034), was conducted during 1985 and 1986. Results of the survey demonstrated no radionuclide concentrations in excess of the DOE Formerly Utilized Sites Remedial Action program criteria. The radionuclide distributions were not significantly different from normal background levels in the northern New Jersey area. 4 refs., 4 figs., 3 tabs.

  18. Results of the radiological survey at 4 Branca Court, Lodi, New Jersey (LJ037)

    SciTech Connect (OSTI)

    Foley, R.D.; Floyd, L.M.; Carrier, R.R.; Crutcher, J.W.

    1989-06-01T23:59:59.000Z

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally /sup 232/Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 4 Branca Court, Lodi, New Jersey (LJ037), was conducted during 1985 and 1986. Results of the survey demonstrated no radionuclide concentrations in excess of the DOE Formerly Utilized Sites Remedial Action Program criteria. However, this property is apparently located directly over the old Lodi Brook streambed. This factor in combination with the elevated gamma logs of several auger holes is sufficient to recommend this site for inclusion in the DOE remedial action program. 5 refs., 5 figs., 4 tabs.

  19. Results of the radiological survey at 5 Branca Court, Lodi, New Jersey (LJ039)

    SciTech Connect (OSTI)

    Foley, R.D.; Floyd, L.M.; Carrier, R.F.

    1989-11-01T23:59:59.000Z

    Maywood Chemical Works (MCW) of Maywood, New Jersey, generated process wastes and residues associated with the production and refining of thorium and thorium compounds from monazite ores from 1916 to 1956. MCW supplied rare earth metals and thorium compounds to the Atomic Energy Commission and various other government agencies from the late 1940s to the mid-1950s. Area residents used the sandlike waste from this thorium extraction process mixed with tea and cocoa leaves as mulch in their yards. Some of these contaminated wastes were also eroded from the site into Lodi Brook. At the request of the US Department of Energy (DOE), a group from Oak Ridge National Laboratory conducts investigative radiological surveys of properties in the vicinity of MCW to determine whether a property is contaminated with radioactive residues, principally {sup 232}Th, derived from the MCW site. The survey typically includes direct measurement of gamma radiation levels and soil sampling for radionuclide analyses. The survey of this site, 5 Branca Court, Lodi, New Jersey (LJ039), was conducted during 1985 and 1986. 4 refs., 5 figs., 3 tabs.

  20. Neutrino minimal standard model predictions for neutrinoless double beta decay

    SciTech Connect (OSTI)

    Bezrukov, F. [Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary prospect 7a, Moscow 117312 (Russian Federation) and Institut de Theorie des Phenomenes Physiques, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne (Switzerland)

    2005-10-01T23:59:59.000Z

    Prediction of the effective Majorana mass for neutrinoless double {beta} decay in a simple extension of the standard model ({nu}MSM) is given. The model adds three right-handed neutrinos with masses smaller than the electroweak scale and explains dark matter of the Universe. This leads to constraints 1.3beta}}{sub {beta}}{sup NH}<3.4 meV in normal neutrino mass hierarchy and 13beta}}{sub {beta}}{sup IH}<50 meV in inverted hierarchy.

  1. The GERDA Neutrinoless Double Beta-Decay Experiment

    SciTech Connect (OSTI)

    Majorovits, Bela A. [Max Planck Institut fuer Physik, Foehringer Ring 6, 80805 Munich (Germany)

    2007-10-12T23:59:59.000Z

    Neutrinoless double beta (0{nu}{beta}{beta})-decay is the key process to gain understanding of the nature of neutrinos. The GErmanium Detector Array (GERDA) is designed to search for 0{nu}{beta}{beta}-decay of the isotope {sup 76}Ge. Germanium crystals enriched in {sup 76}Ge, acting as source and detector simultaneously, will be submerged directly into an ultra pure cooling medium that also serves as a radiation shield. This concept will allow for a reduction of the background by up to two orders of magnitudes with respect to earlier experiments.

  2. JUNO and Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Ge, Shao-Feng

    2015-01-01T23:59:59.000Z

    We study the impact of the precision determination of oscillation parameters in the JUNO experiment on half-life predictions for neutrinoless double beta decay. We show that the solar neutrino mixing angle can be measured by JUNO with below 1% uncertainty. This implies in particular that the minimal value of the effective mass in the inverted mass ordering will be known essentially without uncertainty. We demonstrate that this reduces the range of half-life predictions in order to test this value by a factor of two. The remaining uncertainty is caused by nuclear matrix elements. This has important consequences for future double beta decay experiments that aim at ruling out the inverted mass ordering or the Majorana nature of neutrinos.

  3. JUNO and Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Shao-Feng Ge; Werner Rodejohann

    2015-07-20T23:59:59.000Z

    We study the impact of the precision determination of oscillation parameters in the JUNO experiment on half-life predictions for neutrinoless double beta decay. We show that the solar neutrino mixing angle can be measured by JUNO with below 1% uncertainty. This implies in particular that the minimal value of the effective mass in the inverted mass ordering will be known essentially without uncertainty. We demonstrate that this reduces the range of half-life predictions in order to test this value by a factor of two. The remaining uncertainty is caused by nuclear matrix elements. This has important consequences for future double beta decay experiments that aim at ruling out the inverted mass ordering or the Majorana nature of neutrinos.

  4. Importance of neutrinoless double beta decay

    E-Print Network [OSTI]

    Utpal Sarkar

    2007-12-17T23:59:59.000Z

    A natural explanation for the smallness of the neutrino mass requires them to be Majorana particles violating lepton number by two units. Since lepton number violation can have several interesting consequences in particle physics and cosmology, it is of utmost importance to find out if there is lepton number violation in nature and what is its magnitude. The neutrinoless double beta decay experiment can answer these questions: if there is lepton number violation and if neutrinos are Majorana particles. In addition, the magnitude of neutrinoless double beta decay will constrain any other lepton number violating processes. This lepton number violation may also be relatd to the matter-antimatter asymmetry of the universe, dark matter and cosmological constant.

  5. Neutrinoless Double Beta Decay in Particle Physics

    E-Print Network [OSTI]

    Werner Rodejohann

    2010-11-22T23:59:59.000Z

    Neutrinoless double beta decay is a process of fundamental importance for particle physics. It can be mediated by light massive Majorana neutrinos (standard interpretation) or by something else (non-standard interpretations). We review its dependence on the neutrino parameters, its complementarity to other observables sensitive to neutrino mass, and emphasize its ability to distinguish different neutrino mass models. Then we discuss mechanisms different from light Majorana neutrino exchange, and show what can be learned from those and how they could be tested.

  6. Neutrinoless Double Beta Decay and its "Inverse"

    E-Print Network [OSTI]

    Clemens A. Heusch; Peter Minkowski

    1996-11-18T23:59:59.000Z

    Recent considerations by these authors pointed out the attractive features which a search for the exchange of heavy Majorana neutrinos could have for solving the mass and the lepton number puzzles for all neutrinos, in TeV-level electron-electron scattering. In the present note, we show that, contrary to subsequently published arguments, non-observation of neutrinoless double beta decay has, to date, no bearing on the promise of this important task for future linear electron colliders.

  7. On the possibility to search for double beta decay of initially unstable (alpha/beta radioactive) nuclei

    E-Print Network [OSTI]

    V. I. Tretyak; F. A. Danevich; S. S. Nagorny; Yu. G. Zdesenko

    2004-04-13T23:59:59.000Z

    Possibilities to search for double beta decay of alpha/beta unstable nuclei, many of which have higher energy release than "conventional" (beta stable) double beta decay candidates, are discussed. First experimental half-life limits on double beta decay of radioactive nuclides from U and Th families (trace contaminants of the CaWO_4, CdWO_4 and Gd_2SiO_5 scintillators) were established by reanalyzing the data of low-background measurements in the Solotvina Underground Laboratory with these detectors (1734 h with CaWO_4, 13316 h with CdWO_4, and 13949 h with Gd_2SiO_5 crystals).

  8. Minimalist design of water-soluble cross-[beta] architecture

    SciTech Connect (OSTI)

    Biancalana, Matthew; Makabe, Koki; Koide, Shohei (UC)

    2010-08-13T23:59:59.000Z

    Demonstrated successes of protein design and engineering suggest significant potential to produce diverse protein architectures and assemblies beyond those found in nature. Here, we describe a new class of synthetic protein architecture through the successful design and atomic structures of water-soluble cross-{beta} proteins. The cross-{beta} motif is formed from the lamination of successive {beta}-sheet layers, and it is abundantly observed in the core of insoluble amyloid fibrils associated with protein-misfolding diseases. Despite its prominence, cross-{beta} has been designed only in the context of insoluble aggregates of peptides or proteins. Cross-{beta}'s recalcitrance to protein engineering and conspicuous absence among the known atomic structures of natural proteins thus makes it a challenging target for design in a water-soluble form. Through comparative analysis of the cross-{beta} structures of fibril-forming peptides, we identified rows of hydrophobic residues ('ladders') running across {beta}-strands of each {beta}-sheet layer as a minimal component of the cross-{beta} motif. Grafting a single ladder of hydrophobic residues designed from the Alzheimer's amyloid-{beta} peptide onto a large {beta}-sheet protein formed a dimeric protein with a cross-{beta} architecture that remained water-soluble, as revealed by solution analysis and x-ray crystal structures. These results demonstrate that the cross-{beta} motif is a stable architecture in water-soluble polypeptides and can be readily designed. Our results provide a new route for accessing the cross-{beta} structure and expanding the scope of protein design.

  9. Beta-delayed two-neutron and three-neutron emission

    E-Print Network [OSTI]

    Jonson, B; Hansen, P G; Hoff, P; Larsson, P O; Mattsson, S; Nyman, G H; Rvan, H L; Schardt, D

    1981-01-01T23:59:59.000Z

    Reviews experiments on /sup 11/Li that have led to the observation of two new active decay modes: beta-delayed two- and three-neutron emission. The 2n decay mode is also observed in /sup 30,31,32/Na and very recent results, reported for the first time, shown that it is detectable also in /sup 100/Rb with p/sub 2n//p/sub n/=0.027+or-0.007. (31 refs).

  10. A Novel Dimeric Inhibitor Targeting Beta2GPI in Beta2GPI/Antibody Complexes Implicated in Antiphospholipid Syndrome

    SciTech Connect (OSTI)

    A Kolyada; C Lee; A De Biasio; N Beglova

    2011-12-31T23:59:59.000Z

    {beta}2GPI is a major antigen for autoantibodies associated with antiphospholipid syndrome (APS), an autoimmune disease characterized by thrombosis and recurrent pregnancy loss. Only the dimeric form of {beta}2GPI generated by anti-{beta}2GPI antibodies is pathologically important, in contrast to monomeric {beta}2GPI which is abundant in plasma. We created a dimeric inhibitor, A1-A1, to selectively target {beta}2GPI in {beta}2GPI/antibody complexes. To make this inhibitor, we isolated the first ligand-binding module from ApoER2 (A1) and connected two A1 modules with a flexible linker. A1-A1 interferes with two pathologically important interactions in APS, the binding of {beta}2GPI/antibody complexes with anionic phospholipids and ApoER2. We compared the efficiency of A1-A1 to monomeric A1 for inhibition of the binding of {beta}2GPI/antibody complexes to anionic phospholipids. We tested the inhibition of {beta}2GPI present in human serum, {beta}2GPI purified from human plasma and the individual domain V of {beta}2GPI. We demonstrated that when {beta}2GPI/antibody complexes are formed, A1-A1 is much more effective than A1 in inhibition of the binding of {beta}2GPI to cardiolipin, regardless of the source of {beta}2GPI. Similarly, A1-A1 strongly inhibits the binding of dimerized domain V of {beta}2GPI to cardiolipin compared to the monomeric A1 inhibitor. In the absence of anti-{beta}2GPI antibodies, both A1-A1 and A1 only weakly inhibit the binding of pathologically inactive monomeric {beta}2GPI to cardiolipin. Our results suggest that the approach of using a dimeric inhibitor to block {beta}2GPI in the pathological multivalent {beta}2GPI/antibody complexes holds significant promise. The novel inhibitor A1-A1 may be a starting point in the development of an effective therapeutic for antiphospholipid syndrome.

  11. The uses of alternative dispute resolution to resolve genetic disputes. Final report

    SciTech Connect (OSTI)

    Stein, Robert E.

    2003-01-01T23:59:59.000Z

    The report sets out lessons learned while carrying out the study. It concludes that genetic disputes will increase in number and that ADR processes including mediation, arbitration, the use of independent experts and court-appointed masters can be helpful in resolving them. It suggests additional effort on bioremediation, and workplace disputes and training for ADR neutrals.

  12. The BetaCage, an ultra-sensitive screener for surface contamination

    E-Print Network [OSTI]

    R. Bunker; Z. Ahmed; M. A. Bowles; S. R. Golwala; D. R. Grant; M. Kos; R. H. Nelson; R. W. Schnee; A. Rider; B. Wang; A. Zahn

    2014-04-23T23:59:59.000Z

    Material screening for identifying low-energy electron emitters and alpha-decaying isotopes is now a prerequisite for rare-event searches (e.g., dark-matter direct detection and neutrinoless double-beta decay) for which surface radiocontamination has become an increasingly important background. The BetaCage, a gaseous neon time-projection chamber, is a proposed ultra-sensitive (and nondestructive) screener for alpha- and beta-emitting surface contaminants to which existing screening facilities are insufficiently sensitive. Sensitivity goals are 0.1 betas per keV-m$^2$-day and 0.1 alphas per m$^2$-day, with the former limited by Compton scattering of photons in the screening samples and (thanks to tracking) the latter expected to be signal-limited; radioassays and simulations indicate backgrounds from detector materials and radon daughters should be subdominant. We report on details of the background simulations and detector design that provide the discrimination, shielding, and radiopurity necessary to reach our sensitivity goals for a chamber with a 95$\\times$95 cm$^2$ sample area positioned below a 40 cm drift region and monitored by crisscrossed anode and cathode planes consisting of 151 wires each.

  13. First direct determination of the superallowed $\\beta$-decay $Q_{EC}$-value for $^{14}$O

    E-Print Network [OSTI]

    Valverde, A A; Brodeur, M; Bryce, R A; Cooper, K; Eibach, M; Gulyuz, K; Izzo, C; Morrissey, D J; Redshaw, M; Ringle, R; Sandler, R; Schwarz, S; Sumithrarachchi, C S; Villari, A C C

    2015-01-01T23:59:59.000Z

    We report the first direct measurement of the $^{14}\\text{O}$ superallowed Fermi $\\beta$-decay $Q_{EC}$-value, the last of the so-called "traditional nine" superallowed Fermi $\\beta$-decays to be measured with Penning trap mass spectrometry. $^{14}$O, along with the other low-$Z$ superallowed $\\beta$-emitter, $^{10}$C, is crucial for setting limits on the existence of possible scalar currents. The new ground state $Q_{EC}$ value, 5144.364(25) keV, when combined with the energy of the $0^+$ daughter state, $E_x(0^+)=2312.798(11)$~keV [Nucl. Phys. A {\\bf{523}}, 1 (1991)], provides a new determination of the superallowed $\\beta$-decay $Q_{EC}$ value, $Q_{EC}(\\text{sa}) = 2831.566(28)$ keV, with an order of magnitude improvement in precision, and a similar improvement to the calculated statistical rate function $f$. This is used to calculate an improved $\\mathcal{F}t$-value of 3073.8(2.8) s.

  14. Status of double beta decay experiments using isotopes other than Xe-136

    E-Print Network [OSTI]

    Luciano Pandola

    2014-03-13T23:59:59.000Z

    Neutrinoless double beta decay is a lepton-number violating process predicted by many extensions of the standard model. It is actively searched for in several candidate isotopes within many experimental projects. The status of the experimental initiatives which are looking for the neutrinoless double beta decay in isotopes other than Xe-136 is reviewed, with special emphasis given to the projects that passed the R&D phase. The results recently released by the experiment GERDA are also summarized and discussed. The GERDA data give no positive indication of neutrinoless double beta decay of Ge-76 and disfavor in a model-independent way the long-standing observation claim on the same isotope. The lower limit reported by GERDA for the half-life of neutrinoless double beta decay of Ge-76 is T1/2 > 2.1e25 yr (90% C.L.), or T1/2 > 3.0e25 yr, when combined with the results of other Ge-76 predecessor experiments.

  15. The BetaCage, an ultra-sensitive screener for surface contamination

    SciTech Connect (OSTI)

    Bunker, R.; Bowles, M. A.; Schnee, R. W.; Wang, B. [Department of Physics, Syracuse University, Syracuse, NY 13244 (United States)] [Department of Physics, Syracuse University, Syracuse, NY 13244 (United States); Ahmed, Z.; Golwala, S. R.; Nelson, R. H.; Rider, A.; Zahn, A. [California Institute of Technology, Pasadena, CA 91125 (United States)] [California Institute of Technology, Pasadena, CA 91125 (United States); Grant, D. R. [University of Alberta, Edmonton, AB, T6G 2R3 (Canada)] [University of Alberta, Edmonton, AB, T6G 2R3 (Canada); Kos, M. [Department of Physics, Syracuse University, Syracuse, NY 13244, USA and Pacific Northwest National Laboratory, Richland, WA 99352 (United States)] [Department of Physics, Syracuse University, Syracuse, NY 13244, USA and Pacific Northwest National Laboratory, Richland, WA 99352 (United States)

    2013-08-08T23:59:59.000Z

    Material screening for identifying low-energy electron emitters and alpha-decaying isotopes is now a prerequisite for rare-event searches (e.g., dark-matter direct detection and neutrinoless double-beta decay) for which surface radiocon-tamination has become an increasingly important background. The BetaCage, a gaseous neon time-projection chamber, is a proposed ultra-sensitive (and nondestructive) screener for alpha-and beta-emitting surface contaminants to which existing screening facilities are insufficiently sensitive. Sensitivity goals are 0.1 betas keV{sup ?1} m{sup ?2} day{sup ?1} and 0.1 alphas m{sup ?2} day{sup ?1}, with the former limited by Compton scattering of photons in the screening samples and (thanks to tracking) the latter expected to be signal-limited; radioassays and simulations indicate backgrounds from detector materials and radon daughters should be subdominant. We report on details of the background simulations and detector design that provide the discrimination, shielding, and radiopurity necessary to reach our sensitivity goals for a chamber with a 95 × 95 cm{sup 2} sample area positioned below a 40 cm drift region and monitored by crisscrossed anode and cathode planes consisting of 151 wires each.

  16. Sizeable beta-strength in 31Ar(beta-3p) decay

    E-Print Network [OSTI]

    G. T. Koldste; B. Blank; M. J. G. Borge; J. A. Briz; M. Carmona-Gallardo; L. M. Fraile; H. O. U. Fynbo; J. Giovinazzo; J. G. Johansen; A. Jokinen; B. Jonson; T. Kurturkian-Nieto; T. Nilsson; A. Perea; V. Pesudo; E. Picado; K. Riisager; A. Saastamoinen; O. Tengblad; J. -C. Thomas; J. Van de Walle

    2014-04-08T23:59:59.000Z

    We present for the first time precise spectroscopic information on the recently discovered decay mode beta-delayed 3p-emission. The detection of the 3p events gives an increased sensitivity to the high energy part of the Gamow-Teller strength distribution from the decay of 31Ar revealing that as much as 30% of the strength resides in the beta-3p decay mode. A simplified description of how the main decay modes evolve as the excitation energy increases in 31Cl is provided.

  17. User manual for INVICE 0.1-beta : a computer code for inverse analysis of isentropic compression experiments.

    SciTech Connect (OSTI)

    Davis, Jean-Paul

    2005-03-01T23:59:59.000Z

    INVICE (INVerse analysis of Isentropic Compression Experiments) is a FORTRAN computer code that implements the inverse finite-difference method to analyze velocity data from isentropic compression experiments. This report gives a brief description of the methods used and the options available in the first beta version of the code, as well as instructions for using the code.

  18. Observation of Two-Neutrino Double-Beta Decay in [superscript 136]Xe with the EXO-200 Detector

    E-Print Network [OSTI]

    Waldman, Samuel J.

    We report the observation of two-neutrino double-beta decay in [superscript 136]Xe with T[subscript 1/2]=2.11±0.04(stat)±0.21(syst)×10[superscript 21]??yr. This second-order process, predicted by the standard model, has ...

  19. Progress of High-Beta Experiments in Stellarator/Heliotron

    SciTech Connect (OSTI)

    Watanabe, Kiyomasa Y. [National Institute for Fusion Science (Japan); Weller, Arthur [Max-Planck-Institut fuer Plasmaphysik (Germany); Sakakibara, Satoru [National Institute for Fusion Science (Japan); Narushima, Yoshiro [National Institute for Fusion Science (Japan); Ohdachi, Satoshi [National Institute for Fusion Science (Japan); Narihara, Kazumichi [National Institute for Fusion Science (Japan); Tanaka, Kenji [National Institute for Fusion Science (Japan); Ida, Katsumi [National Institute for Fusion Science (Japan); Toi, Kazuo [National Institute for Fusion Science (Japan); Yamada, Hiroshi [National Institute for Fusion Science (Japan); Suzuki, Yasuhiro [Graduate School of Energy Science (Japan); Kaneko, Osamu [National Institute for Fusion Science (Japan)

    2004-07-15T23:59:59.000Z

    Recently, dramatic progress has been achieved in the study of helical systems with high-beta experiments. Discharges with more than 3% beta plasmas have been achieved in Large Helical Device (LHD) and Wendelstein 7-AS (W7-AS). Although magnetohydrodynamic (MHD) instabilities affect local pressure gradients, the global transport property does not seem to limit the achieved beta value in either device. We summarize the LHD high-beta properties in MHD stability, equilibrium, and transport, and we show the relationship between the experimentally achieved parameters and theoretical predictions. We contrast the LHD results with the W7-AS high-beta properties. In both devices, stationary discharges in the definitely MHD unstable region have not been observed. We mention the key issue for achievement of the beta values >5%.

  20. Chiral Two-body Currents and Neutrinoless Double Beta Decay

    SciTech Connect (OSTI)

    Menendez, Javier [Institut fuer Kernphysik, Technische Universitaet Darmstadt, 64289 Darmstadt (Germany); ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, 64291 Darmstadt (Germany)

    2011-12-16T23:59:59.000Z

    The nuclear matrix elements (NMEs) of neutrinoless double-beta (0{nu}{beta}{beta}) decay are studied using weak currents derived in the framework of chiral effective field theory. Apart from the standard one-body (1b) currents, it is shown that two-body (2b) currents contribute to weak processes. The normal-ordered 1b part of 2b currents modifies the Gamow-Teller (GT){sigma}{tau}{sup -} part of the 1b current, contributing to the well-known quenching of GT single-{beta} decays. The momentum-transfer dependence of the quenching due to 2b currents is also predicted. Therefore, including 2b currents allows to address, microscopically, the problem of the axial weak coupling (g{sub A}) value, which is the biggest uncertainty in the 0{nu}{beta}{beta} decay NME calculations for all available methods.

  1. Preparation of reactive beta-dicalcium silicate

    DOE Patents [OSTI]

    Shen, Ming-Shing (Laramie, WY, NJ); Chen, James M. (Rahway, NJ); Yang, Ralph T. (Amherst, NY)

    1982-01-01T23:59:59.000Z

    This invention relates to the preparation of fine particles of reactive beta-dicalcium silicate by means of a solid state process which comprises firing a mixture of calcium sulfate, silica and a reducing additive selected from the group consisting of calcium sulfide, carbon, carbon monoxide, methane and hydrogen, at a temperature of about 850.degree.-1000.degree. C. A carrier gas such as nitrogen or carbon dioxide may also be added, if desired. A high concentration of sulfur dioxide is a by-product of this process.

  2. Preparation of reactive beta-dicalcium silicate

    DOE Patents [OSTI]

    Shen, M.S.; Chen, J.M.; Yang, R.T.

    1980-02-28T23:59:59.000Z

    This invention relates to the preparation of fine particles of reactive beta-dicalcium silicate by means of a solid state process which comprises firing a mixture of calcium sulfate, silica, and a reducing additive selected from the group consisting of calcium sulfide, carbon, carbon monoxide, methane, and hydrogen, at a temperature of about 850 to 1000/sup 0/C. A carrier gas such as nitrogen or carbon dioxide may also be added, if desired. A high concentration of sulfur dioxide is a by-product of this process.

  3. Neutrinoless double beta decay and QCD corrections

    E-Print Network [OSTI]

    Namit Mahajan

    2014-01-30T23:59:59.000Z

    We consider one loop QCD corrections and renormalization group running of the neutrinoless double beta decay amplitude focusing on the short-range part of the amplitude (without the light neutrino exchange) and find that these corrections can be sizeable. Depending on the operator under consideration, there can be moderate to large cancellations or significant enhancements. We discuss several specific examples in this context. Such large corrections will lead to significant shifts in the half-life estimates which currently are known to be plagued with the uncertainties due to nuclear physics inputs to the physical matrix elements.

  4. Proceedings of the Department of Energy workshop on beta measurements

    SciTech Connect (OSTI)

    Swinth, K.L.; Vallario, E.J.

    1987-09-01T23:59:59.000Z

    Participants discussed current practices, efforts to upgrade the quality of beta measurements, and initiatives necessary to improve the measurement and control of beta doses. This proceedings includes papers presented at the workshop, transcripts of panel and open discussions, and documentation of question and answer sessions. The information exchange resulting from this meeting is expected to provide a clearer focus on the problems of beta measurements.

  5. Labeled ALPHA4BETA2 ligands and methods therefor

    DOE Patents [OSTI]

    Mukherjee, Jogeshwar; Pichika, Ramaiah; Potkin, Steven; Leslie, Frances; Chattopadhyay, Sankha

    2013-02-19T23:59:59.000Z

    Contemplated compositions and methods are employed to bind in vitro and in vivo to an .alpha.4.beta.2 nicotinic acetylcholine receptor in a highly selective manner. Where such compounds are labeled, compositions and methods employing such compounds can be used for PET and SPECT analysis. Alternatively, and/or additionally contemplated compounds can be used as antagonists, partial agonists or agonists in the treatment of diseases or conditions associated with .alpha.4.beta..beta.2 dysfunction.

  6. Neutrinoless Double Beta Decay in Supersymmetric Seesaw model

    E-Print Network [OSTI]

    Tai-Fu Feng; Xue-Qian Li; Yan-An Luo

    2002-09-26T23:59:59.000Z

    Inspired by the recent HEIDELBERG-MOSCOW double beta decay experiment, we discuss the neutrinoless double beta decay in the supersymmetric seesaw model. Our numerical analysis indicates that we can naturally explain the data of the observed neutrinoless double beta decay, as well as that of the solar and atmospheric neutrino experiments with at least one Majorana-like sneutrino of middle energy scale in the model.

  7. Results of the NEMO-3 Double Beta Decay Experiment

    E-Print Network [OSTI]

    Mathieu BONGRAND for the NEMO-3 Collaboration

    2011-05-12T23:59:59.000Z

    The NEMO-3 experiment is searching for neutrinoless double beta decay for 2 main isotopes (100Mo and 82Se) and is studying the two-neutrino double beta decay of seven isotopes. The experiment has been taking data since 2003 and, up to the end of 2009, showed no evidence for neutrinoless double beta decay. Two 90 % CL lower limits on the half-lives of the transitions were obtained : T_{1/2}^{0\

  8. Neutrinoless double beta decay search with the NEMO 3 experiment

    E-Print Network [OSTI]

    Irina Nasteva; for the NEMO 3 Collaboration

    2008-10-03T23:59:59.000Z

    The NEMO 3 experiment searches for neutrinoless double beta decay and makes precision measurements of two-neutrino double beta decay in seven isotopes. The latest two-neutrino half-life results are presented, together with the limits on neutrinoless half-lives and the corresponding effective Majorana neutrino masses. Also given are the limits obtained on neutrinoless double beta decay mediated by Rp-violating SUSY, right-hand currents and different Majoron emission modes.

  9. Neutrinoless double beta decay search with the NEMO 3 experiment

    SciTech Connect (OSTI)

    Nasteva, Irina [Particle Physics Group, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL (United Kingdom)

    2008-11-23T23:59:59.000Z

    The NEMO 3 experiment searches for neutrinoless double beta decay and makes precision measurements of two-neutrino double beta decay in seven isotopes. The latest two-neutrino half-life results are presented, together with the limits on neutrinoless half-lives and the corresponding effective Majorana neutrino masses. Also given are the limits obtained on neutrinoless double beta decay mediated by R{sub p}-violating SUSY, right-hand currents and different Majoron emission modes.

  10. Considerations of beta and electron transport in internal dose calculations

    SciTech Connect (OSTI)

    Bolch, W.E.; Poston, J.W. Sr.

    1990-12-01T23:59:59.000Z

    Ionizing radiation has broad uses in modern science and medicine. These uses often require the calculation of energy deposition in the irradiated media and, usually, the medium of interest is the human body. Energy deposition from radioactive sources within the human body and the effects of such deposition are considered in the field of internal dosimetry. In July of 1988, a three-year research project was initiated by the Nuclear Engineering Department at Texas A M University under the sponsorship of the US Department of Energy. The main thrust of the research was to consider, for the first time, the detailed spatial transport of electron and beta particles in the estimation of average organ doses under the Medical Internal Radiation Dose (MIRD) schema. At the present time (December of 1990), research activities are continuing within five areas. Several are new initiatives begun within the second or third year of the current contract period. They include: (1) development of small-scale dosimetry; (2) development of a differential volume phantom; (3) development of a dosimetric bone model; (4) assessment of the new ICRP lung model; and (5) studies into the mechanisms of DNA damage. A progress report is given for each of these tasks within the Comprehensive Report. In each case, preliminary results are very encouraging and plans for further research are detailed within this document.

  11. Competition between $\\beta$-delayed proton and $\\beta$-delayed $\\gamma$ decay of the exotic $T_z$ = -2 nucleus $^{56}$Zn and fragmentation of the IAS

    E-Print Network [OSTI]

    Rubio, B; Fujita, Y; Blank, B; Gelletly, W; Agramunt, J; Algora, A; Ascher, P; Bilgier, B; Cáceres, L; Cakirli, R B; Fujita, H; Ganioglu, E; Gerbaux, M; Giovinazzo, J; Grévy, S; Kamalou, O; Kozer, H C; Kucuk, L; Kurtukian-Nieto, T; Molina, F; Popescu, L; Rogers, A M; Susoy, G; Stodel, C; Suzuki, T; Tamii, A; Thomas, J C

    2015-01-01T23:59:59.000Z

    A very exotic decay mode at the proton drip-line, $\\beta$-delayed $\\gamma$-proton decay, has been observed in the $\\beta$ decay of the $T_z$ = -2 nucleus $^{56}$Zn. Three $\\gamma$-proton sequences have been observed following the $\\beta$ decay. The fragmentation of the IAS in $^{56}$Cu has also been observed for the first time. The results were reported in a recent publication. At the time of publication the authors were puzzled by the competition between proton and $\\gamma$ decays from the main component of the IAS. Here we outline a possible explanation based on the nuclear structure properties of the three nuclei involved, namely $^{56}$Zn, $^{56}$Cu and $^{55}$Ni, close to the doubly magic nucleus $^{56}$Ni. From the fragmentation of the Fermi strength and the excitation energy of the two populated 0$^{+}$ states we could deduce the off-diagonal matrix element of the charge-dependent part of the Hamiltonian responsible for the mixing. These results are compared with the decay of $^{55}$Cu with one proton ...

  12. Results on Dark Matter and beta beta decay modes by DAMA at Gran Sasso

    E-Print Network [OSTI]

    R. Bernabei

    2007-05-21T23:59:59.000Z

    DAMA is an observatory for rare processes and it is operative deep underground at the Gran Sasso National Laboratory of the I.N.F.N. (LNGS). Here some arguments will be presented on the investigation on dark matter particles by annual modulation signature and on some of the realized double beta decay searches.

  13. Nuclear structure aspects of neutrinoless {beta}{beta} decay: limits on the electron neutrino mass

    SciTech Connect (OSTI)

    Civitarese, O. [Department of Physics. University of La Plata, 1900 La Plata (Argentina); Suhonen, J. [Department of Physics. University of Jyvaeskyla, (Finland)

    2007-02-12T23:59:59.000Z

    We discuss some features of the nuclear structure elements participant in the calculation of the mass sector of the half-life of the neutrinoless double beta decay, and the consequences upon the adopted limits of the electron-neutrino mass.

  14. Physics Potential of the gamma=100,100 Beta Beam

    E-Print Network [OSTI]

    M. Mezzetto

    2005-11-02T23:59:59.000Z

    The physics potential of a Beta Beam fired from CERN to a 440 kton water Cerenkov detector at a distance of 130 Km is computed.

  15. aminopropionic acid-beta: Topics by E-print Network

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

    aminopropionic acid-beta First Page Previous Page 1 Next Page Last Page Topic Index 1 Quantitative Fibroblast Acylcarnitine Profiling In The Diagnostic and Prognostic Assessment of...

  16. acetylpropionic acid-beta: Topics by E-print Network

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

    acetylpropionic acid-beta First Page Previous Page 1 Next Page Last Page Topic Index 1 Quantitative Fibroblast Acylcarnitine Profiling In The Diagnostic and Prognostic Assessment...

  17. SNL-EFDC V0.0 BETA

    Energy Science and Technology Software Center (OSTI)

    002401WKSTN00 SNL-EFDC (Environmental Fluid Dynamics Code) v. 0.0 beta  http://sourceforge.net/projects/snl-efdc/ 

  18. Majorana Neutrino Masses from Neutrinoless Double Beta Decay and Cosmology

    E-Print Network [OSTI]

    V. Barger; K. Whisnant

    1999-04-08T23:59:59.000Z

    When three Majorana neutrinos describe the solar and atmospheric neutrino data via oscillations, a nonzero measurement of neutrinoless double beta ($0\

  19. What can we learn from neutrinoless double beta decay experiments?

    E-Print Network [OSTI]

    John N. Bahcall; Hitoshi Murayama; Carlos Pena-Garay

    2004-04-08T23:59:59.000Z

    We assess how well next generation neutrinoless double beta decay and normal neutrino beta decay experiments can answer four fundamental questions. 1) If neutrinoless double beta decay searches do not detect a signal, and if the spectrum is known to be inverted hierarchy, can we conclude that neutrinos are Dirac particles? 2) If neutrinoless double beta decay searches are negative and a next generation ordinary beta decay experiment detects the neutrino mass scale, can we conclude that neutrinos are Dirac particles? 3) If neutrinoless double beta decay is observed with a large neutrino mass element, what is the total mass in neutrinos? 4) If neutrinoless double beta decay is observed but next generation beta decay searches for a neutrino mass only set a mass upper limit, can we establish whether the mass hierarchy is normal or inverted? We base our answers on the expected performance of next generation neutrinoless double beta decay experiments and on simulations of the accuracy of calculations of nuclear matrix elements.

  20. Neutrinoless double beta decay can constrain neutrino dark matter

    E-Print Network [OSTI]

    V. Barger; S. L. Glashow; D. Marfatia; K. Whisnant

    2002-02-26T23:59:59.000Z

    We examine how constraints can be placed on the neutrino component of dark matter by an accurate measurement of neutrinoless double beta ($0\

  1. alpha iib beta: Topics by E-print Network

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

    Yu. G. Zdesenko 2004-04-13 9 Alpha Backgrounds and Their Implications for Neutrinoless Double-Beta Decay Experiments Using HPGe Detectors Physics Websites Summary: Alpha...

  2. alpha trihydroxy-5 beta: Topics by E-print Network

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

    Yu. G. Zdesenko 2004-04-13 7 Alpha Backgrounds and Their Implications for Neutrinoless Double-Beta Decay Experiments Using HPGe Detectors Physics Websites Summary: Alpha...

  3. amyloid beta interacts: Topics by E-print Network

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

    Sebastian 2013-01-01 29 Effects of New Gravitational Interactions on Neutrinoless Double Beta Decay General Relativity & Quantum Cosmology (arXiv) Summary: It has recently...

  4. alpha gross beta: Topics by E-print Network

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

    Yu. G. Zdesenko 2004-04-13 14 Alpha Backgrounds and Their Implications for Neutrinoless Double-Beta Decay Experiments Using HPGe Detectors Physics Websites Summary: Alpha...

  5. alpha beta forms: Topics by E-print Network

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

    R. Williamson 2005-04-04 14 Alpha Backgrounds and Their Implications for Neutrinoless Double-Beta Decay Experiments Using HPGe Detectors Physics Websites Summary: Alpha...

  6. Detection of alpha radiation in a beta radiation field

    DOE Patents [OSTI]

    Mohagheghi, Amir H. (Albuquerque, NM); Reese, Robert P. (Edgewood, NM)

    2001-01-01T23:59:59.000Z

    An apparatus and method for detecting alpha particles in the presence of high activities of beta particles utilizing an alpha spectrometer. The apparatus of the present invention utilizes a magnetic field applied around the sample in an alpha spectrometer to deflect the beta particles from the sample prior to reaching the detector, thus permitting detection of low concentrations of alpha particles. In the method of the invention, the strength of magnetic field required to adequately deflect the beta particles and permit alpha particle detection is given by an algorithm that controls the field strength as a function of sample beta energy and the distance of the sample to the detector.

  7. Observation of a new transition in the {beta}-delayed neutron decay of {sup 18}N

    SciTech Connect (OSTI)

    Lou, J. L.; Li, Z. H.; Ye, Y. L.; Hua, H.; Jiang, D. X.; Lv, L. H.; Kong, Z.; Zhang, Y. M.; Xu, F. R.; Zheng, T.; Li, X. Q.; Ge, Y. C.; Wu, C.; Zhang, G. L.; Chen, Z. Q.; Li, C.; Pang, D. Y. [School of Physics and MOE Key Laboratory of Heavy Ion Physics, Peking University, Beijing 100871 (China); Xu, H. S.; Sun, Z. Y.; Duan, L. M. [Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000 (China)] (and others)

    2007-05-15T23:59:59.000Z

    A new transition is reported in the beta-delayed neutron decay of {sup 18}N. The observed neutron energy is 3.78{+-}0.05 MeV with a branching ratio of 0.05{+-}0.03%, which corresponds to an excitation energy of 12.05{+-}0.05 MeV in the daughter nucleus {sup 18}O. The log ft value of this transition is 5.24{+-}0.3, which, together with the previously reported electron scattering data, determines the J{sup {pi}} value of this level to be 1{sup -}. The experimental data are compared to the shell model calculations in different model spaces.

  8. Oscillations in Beta UMi - Observations with SMEI

    E-Print Network [OSTI]

    N. J. Tarrant; W. J. Chaplin; Y. Elsworth; S. A. Spreckley; I. R. Stevens

    2008-04-22T23:59:59.000Z

    Aims: From observations of the K4III star Beta UMi we attempt to determine whether oscillations or any other form of variability is present. Methods: A high-quality photometric time series of approximately 1000 days in length obtained from the SMEI instrument on the Coriolis satellite is analysed. Various statistical tests were performed to determine the significance of features seen in the power density spectrum of the light curve. Results: Two oscillations with frequencies 2.44 and 2.92 microhertz have been identified. We interpret these oscillations as consecutive overtones of an acoustic spectrum, implying a large frequency spacing of 0.48 microhertz. Using derived asteroseismic parameters in combination with known astrophysical parameters, we estimate the mass of Beta UMi to be 1.3 +/- 0.3 solar masses. Peaks of the oscillations in the power density spectrum show width, implying that modes are stochastically excited and damped by convection. The mode lifetime is estimated at 18 +/- 9 days.

  9. Prediction of average. beta. and. gamma. energies and probabilities of. beta. -delayed neutron emission in the region of fission products

    SciTech Connect (OSTI)

    Hirsch, M.; Staudt, A.; Klapdor-Kleingrothaus, H.V. (Max-Planck-Inst. fuer Kernphysik, Heidelberg (Germany))

    1992-07-01T23:59:59.000Z

    Mean {beta} and {gamma} energies and probabilities of {beta}-delayed neutron emission (P{sub n}) in the region of fission products are calculated using a proton-neutron quasiparticle random-phase approximation nuclear model. {beta}-decay properties of these nuclides are essential input parameters for decay heat calculations for nuclear reactors. The results are compared with recent measurements. Mean energies and the P{sub n} values of {approximately}150 experimentally unknown short-lived isotopes are predicted.

  10. Beta-expansions for cubic Pisot numbers Fr ed erique Bassino

    E-Print Network [OSTI]

    Bassino, Frédérique

    Beta-expansions for cubic Pisot numbers Fr#19;ed#19;erique Bassino I.G.M., Universit#19;e de Marne of fa 2 N j a beta-shift. This dynamical system is characterized by the beta a simple beta-number. We #12;rst compute the beta-expansion of 1 for any cubic Pisot number. Next we show

  11. Performance of ZnMoO4 crystal as cryogenic scintillating bolometer to search for double beta decay of molybdenum

    E-Print Network [OSTI]

    L. Gironi; C. Arnaboldi; J. W. Beeman; O. Cremonesi; F. A. Danevich; V. Ya. Degoda; L. I. Ivleva; L. L. Nagornaya; M. Pavan; G. Pessina; S. Pirro; V. I. Tretyak; I. A. Tupitsyna

    2010-10-01T23:59:59.000Z

    Zinc molybdate (ZnMoO4) single crystals were grown for the first time by the Czochralski method and their luminescence was measured under X ray excitation in the temperature range 85-400 K. Properties of ZnMoO4 crystal as cryogenic low temperature scintillator were checked for the first time. Radioactive contamination of the ZnMoO4 crystal was estimated as <0.3 mBq/kg (228-Th) and 8 mBq/kg (226-Ra). Thanks to the simultaneous measurement of the scintillation light and the phonon signal, the alpha particles can be discriminated from the gamma/beta interactions, making this compound extremely promising for the search of neutrinoless Double Beta Decay of 100-Mo. We also report on the ability to discriminate the alpha-induced background without the light measurement, thanks to a different shape of the thermal signal that characterizes gamma/beta and alpha particle interactions.

  12. Search for Neutrinoless Double-Beta Decay of $^{130}$Te with CUORE-0

    E-Print Network [OSTI]

    Alfonso, K; Avignone, F T; Azzolini, O; Balata, M; Banks, T I; Bari, G; Beeman, J W; Bellini, F; Bersani, A; Biassoni, M; Brofferio, C; Bucci, C; Caminata, A; Canonica, L; Cao, X G; Capelli, S; Cappelli, L; Carbone, L; Cardani, L; Casali, N; Cassina, L; Chiesa, D; Chott, N; Clemenza, M; Copello, S; Cosmelli, C; Cremonesi, O; Creswick, R J; Cushman, J S; Dafinei, I; Dally, A; Dell'Oro, S; Deninno, M M; DiDomizio, S; DiVacri, M L; Drobizhev, A; Ejzak, L; Fang, D Q; Faverzani, M; Fernandes, G; Ferri, E; Ferroni, F; Fiorini, E; Freedman, S J; Fujikawa, B K; Giachero, A; Gironi, L; Giuliani, A; Gorla, P; Gotti, C; Gutierrez, T D; Haller, E E; Han, K; Hansen, E; Heeger, K M; Hennings-Yeomans, R; Hickerson, K P; Huang, H Z; Kadel, R; Keppel, G; Kolomensky, Yu G; Lim, K E; Liu, X; Ma, Y G; Maino, M; Martinez, M; Maruyama, R H; Mei, Y; Moggi, N; Morganti, S; Nisi, S; Nones, C; Norman, E B; Nucciotti, A; O'Donnell, T; Orio, F; Orlandi, D; Ouellet, J L; Pagliarone, C E; Pallavicini, M; Palmieri, V; Pattavina, L; Pavan, M; Pedretti, M; Pessina, G; Pettinacci, V; Piperno, G; Pirro, S; Pozzi, S; Previtali, E; Rosenfeld, C; Rusconi, C; Sala, E; Sangiorgio, S; Santone, D; Scielzo, N D; Sisti, M; Smith, A R; Taffarello, L; Tenconi, M; Terranova, F; Tomei, C; Trentalange, S; Ventura, G; Vignati, M; Wagaarachchi, S L; Wang, B S; Wang, H W; Wielgus, L; Wilson, J; Winslow, L A; Wise, T; Zanotti, L; Zarra, C; Zhang, G Q; Zhu, B X; Zucchelli, S

    2015-01-01T23:59:59.000Z

    We report the results of a search for neutrinoless double-beta decay in a 9.8~kg$\\cdot$yr exposure of $^{130}$Te using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are $5.1\\pm 0.3{\\rm~keV}$ FWHM and $0.058 \\pm 0.004\\,(\\mathrm{stat.})\\pm 0.002\\,(\\mathrm{syst.})$~counts/(keV$\\cdot$kg$\\cdot$yr), respectively. The median 90%~C.L. lower-limit sensitivity of the experiment is $2.9\\times 10^{24}~{\\rm yr}$ and surpasses the sensitivity of previous searches. We find no evidence for neutrinoless double-beta decay of $^{130}$Te and place a Bayesian lower bound on the decay half-life, $T^{0\

  13. Search for Neutrinoless Double-Beta Decay of $^{130}$Te with CUORE-0

    E-Print Network [OSTI]

    K. Alfonso; D. R. Artusa; F. T. Avignone III; O. Azzolini; M. Balata; T. I. Banks; G. Bari; J. W. Beeman; F. Bellini; A. Bersani; M. Biassoni; C. Brofferio; C. Bucci; A. Caminata; L. Canonica; X. G. Cao; S. Capelli; L. Cappelli; L. Carbone; L. Cardani; N. Casali; L. Cassina; D. Chiesa; N. Chott; M. Clemenza; S. Copello; C. Cosmelli; O. Cremonesi; R. J. Creswick; J. S. Cushman; I. Dafinei; A. Dally; S. Dell'Oro; M. M. Deninno; S. DiDomizio; M. L. DiVacri; A. Drobizhev; L. Ejzak; D. Q. Fang; M. Faverzani; G. Fernandes; E. Ferri; F. Ferroni; E. Fiorini; S. J. Freedman; B. K. Fujikawa; A. Giachero; L. Gironi; A. Giuliani; P. Gorla; C. Gotti; T. D. Gutierrez; E. E. Haller; K. Han; E. Hansen; K. M. Heeger; R. Hennings-Yeomans; K. P. Hickerson; H. Z. Huang; R. Kadel; G. Keppel; Yu. G. Kolomensky; K. E. Lim; X. Liu; Y. G. Ma; M. Maino; M. Martinez; R. H. Maruyama; Y. Mei; N. Moggi; S. Morganti; S. Nisi; C. Nones; E. B. Norman; A. Nucciotti; T. O'Donnell; F. Orio; D. Orlandi; J. L. Ouellet; C. E. Pagliarone; M. Pallavicini; V. Palmieri; L. Pattavina; M. Pavan; M. Pedretti; G. Pessina; V. Pettinacci; G. Piperno; S. Pirro; S. Pozzi; E. Previtali; C. Rosenfeld; C. Rusconi; E. Sala; S. Sangiorgio; D. Santone; N. D. Scielzo; M. Sisti; A. R. Smith; L. Taffarello; M. Tenconi; F. Terranova; C. Tomei; S. Trentalange; G. Ventura; M. Vignati; S. L. Wagaarachchi; B. S. Wang; H. W. Wang; L. Wielgus; J. Wilson; L. A. Winslow; T. Wise; L. Zanotti; C. Zarra; G. Q. Zhang; B. X. Zhu; S. Zucchelli

    2015-04-09T23:59:59.000Z

    We report the results of a search for neutrinoless double-beta decay in a 9.8~kg$\\cdot$yr exposure of $^{130}$Te using a bolometric detector array, CUORE-0. The characteristic detector energy resolution and background level in the region of interest are $5.1\\pm 0.3{\\rm~keV}$ FWHM and $0.058 \\pm 0.004\\,(\\mathrm{stat.})\\pm 0.002\\,(\\mathrm{syst.})$~counts/(keV$\\cdot$kg$\\cdot$yr), respectively. The median 90%~C.L. lower-limit sensitivity of the experiment is $2.9\\times 10^{24}~{\\rm yr}$ and surpasses the sensitivity of previous searches. We find no evidence for neutrinoless double-beta decay of $^{130}$Te and place a Bayesian lower bound on the decay half-life, $T^{0\

  14. Mutant HNF-1{alpha} and mutant HNF-1{beta} identified in MODY3 and MODY5 downregulate DPP-IV gene expression in Caco-2 cells

    SciTech Connect (OSTI)

    Gu Ning [Laboratory of Metabolism, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto (Japan); Laboratory of Neurochemistry, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto (Japan); Adachi, Tetsuya [Department of Genomic Drug Discovery Science, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto (Japan); Matsunaga, Tetsuro [Laboratory of Metabolism, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto (Japan); Takeda, Jun [Department of Endocrinology Diabetes and Rheumatology, Graduate School of Medicine, Gifu University School of Medicine, Gifu (Japan); Tsujimoto, Gozoh [Department of Genomic Drug Discovery Science, Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto (Japan); Ishihara, Akihiko [Laboratory of Neurochemistry, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto (Japan); Yasuda, Koichiro [Laboratory of Metabolism, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto (Japan); Diabetic Center, Tsunashimakai-Kosei Hospital, Himeji (Japan); Tsuda, Kinsuke [Laboratory of Metabolism, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto (Japan)]. E-mail: jinkan@tom.life.h.kyoto-u.ac.jp

    2006-08-04T23:59:59.000Z

    Dipeptidylpeptidase IV (DPP-IV) is a well-documented drug target for the treatment of type 2 diabetes. Hepatocyte nuclear factors (HNF)-1{alpha} and HNF-1{beta}, known as the causal genes of MODY3 and MODY5, respectively, have been reported to be involved in regulation of DPP-IV gene expression. But, it is not completely clear (i) that they play roles in regulation of DPP-IV gene expression, and (ii) whether DPP-IV gene activity is changed by mutant HNF-1{alpha} and mutant HNF-1{beta} in MODY3 and MODY5. To explore these questions, we investigated transactivation effects of wild HNF-1{alpha} and 13 mutant HNF-1{alpha}, as well as wild HNF-1{beta} and 2 mutant HNF-1{beta}, on DPP-IV promoter luciferase gene in Caco-2 cells by means of a transient experiment. Both wild HNF-1{alpha} and wild HNF-1{beta} significantly transactivated DPP-IV promoter, but mutant HNF-1{alpha} and mutant HNF-1{beta} exhibited low transactivation activity. Moreover, to study whether mutant HNF-1{alpha} and mutant HNF-1{beta} change endogenous DPP-IV enzyme activity, we produced four stable cell lines from Caco-2 cells, in which wild HNF-1{alpha} or wild HNF-1{beta}, or else respective dominant-negative mutant HNF-1{alpha}T539fsdelC or dominant-negative mutant HNF-1{beta}R177X, was stably expressed. We found that DPP-IV gene expression and enzyme activity were significantly increased in wild HNF-1{alpha} cells and wild HNF-1{beta} cells, whereas they decreased in HNF-1{alpha}T539fsdelC cells and HNF-1{beta}R177X cells, compared with DPP-IV gene expression and enzyme activity in Caco-2 cells. These results suggest that both wild HNF-1{alpha} and wild HNF-1{beta} have a stimulatory effect on DPP-IV gene expression, but that mutant HNF-1{alpha} and mutant HNF-1{beta} attenuate the stimulatory effect.

  15. TGF-{beta}-stimulated aberrant expression of class III {beta}-tubulin via the ERK signaling pathway in cultured retinal pigment epithelial cells

    SciTech Connect (OSTI)

    Chung, Eun Jee [Department of Ophthalmology, National Health Insurance Corporation Ilsan Hospital, Gyeonggi-do (Korea, Republic of)] [Department of Ophthalmology, National Health Insurance Corporation Ilsan Hospital, Gyeonggi-do (Korea, Republic of); Chun, Ji Na; Jung, Sun-Ah [Konyang University Myunggok Medical Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul (Korea, Republic of)] [Konyang University Myunggok Medical Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul (Korea, Republic of); Cho, Jin Won [Department of Biology, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749 (Korea, Republic of)] [Department of Biology, Yonsei University, 134 Shinchon-dong, Seodaemun-gu, Seoul 120-749 (Korea, Republic of); Lee, Joon H., E-mail: joonhlee@konyang.ac.kr [Konyang University Myunggok Medical Research Institute, Kim's Eye Hospital, Konyang University College of Medicine, Seoul (Korea, Republic of)

    2011-11-18T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer TGF-{beta} induces aberrant expression of {beta}III in RPE cells via the ERK pathway. Black-Right-Pointing-Pointer TGF-{beta} increases O-GlcNAc modification of {beta}III in RPE cells. Black-Right-Pointing-Pointer Mature RPE cells have the capacity to express a neuron-associated gene by TGF-{beta}. -- Abstract: The class III {beta}-tubulin isotype ({beta}{sub III}) is expressed exclusively by neurons within the normal human retina and is not present in normal retinal pigment epithelial (RPE) cells in situ or in the early phase of primary cultures. However, aberrant expression of class III {beta}-tubulin has been observed in passaged RPE cells and RPE cells with dedifferentiated morphology in pathologic epiretinal membranes from idiopathic macular pucker, proliferative vitreoretinopathy (PVR) and proliferative diabetic retinopathy (PDR). Transforming growth factor-{beta} (TGF-{beta}) has been implicated in dedifferentiation of RPE cells and has a critical role in the development of proliferative vitreoretinal diseases. Here, we investigated the potential effects of TGF-{beta} on the aberrant expression of class III {beta}-tubulin and the intracellular signaling pathway mediating these changes. TGF-{beta}-induced aberrant expression and O-linked-{beta}-N-acetylglucosamine (O-GlcNac) modification of class III {beta}-tubulin in cultured RPE cells as determined using Western blotting, RT-PCR and immunocytochemistry. TGF-{beta} also stimulated phosphorylation of ERK. TGF-{beta}-induced aberrant expression of class III {beta}-tubulin was significantly reduced by pretreatment with U0126, an inhibitor of ERK phosphorylation. Our findings indicate that TGF-{beta} stimulated aberrant expression of class III {beta}-tubulin via activation of the ERK signaling pathway. These data demonstrate that mature RPE cells have the capacity to express a neuron-associated gene in response to TGF-{beta} stimulation and provide useful information towards understanding the pathogenesis of proliferative vitreoretinal diseases.

  16. SciTech Connect: Beta Decay of B12

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Beta Decay of B12 Citation Details In-Document Search Title: Beta Decay of B12 The 3.23-Mev gamma-ray transition between the 7.66 and 4.43-Mev states of C12 has...

  17. Double Beta Decay and the Absolute Neutrino Mass Scale

    E-Print Network [OSTI]

    Carlo Giunti

    2003-08-20T23:59:59.000Z

    After a short review of the current status of three-neutrino mixing, the implications for the values of neutrino masses are discussed. The bounds on the absolute scale of neutrino masses from Tritium beta-decay and cosmological data are reviewed. Finally, we discuss the implications of three-neutrino mixing for neutrinoless double-beta decay.

  18. One Year of Evidence for Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    H. V. Klapdor-Kleingrothaus

    2003-02-26T23:59:59.000Z

    The present experimental status in the search for neutrinoless double beta decay is reviewed, with emphasis on the first indication for neutrinoless double beta decay found in the HEIDELBERG-MOSCOW experiment, giving first evidence for lepton number violation and a Majorana nature of the neutrinos. Future perspectives of the field are briefly outlined.

  19. Experimental research of double beta decay of atomic nuclei

    E-Print Network [OSTI]

    F. A. Danevich

    2011-12-26T23:59:59.000Z

    Results of several double beta decay experiments, performed with the help of low background crystal scintillators, are presented. In particular, the half-life value of the two-neutrino double beta decay of 116-Cd has been measured as 2.9 10^{19} yr, and the new half-life limit on the neutrinoless double beta decay of 116-Cd has been established as >1.7 10^{23} yr at 90%, which corresponds to a restriction on the neutrino mass neutrinoless double beta decay of 76-Ge [Mod. Phys. Lett. A 16 (2001) 2409] was analyzed. The demands of the future high sensitivity double beta decay experiments, aiming to observe the neutrinoless double beta decay or to advance restrictions on the neutrino mass to < 0.01 eV, were considered. Requirements for their sensitivity and discovery potential were formulated. Two projects of double beta experiments with a sensitivity on the level of 10^{26}-10^{27} yr (CAMEO and CARVEL projects) were discussed. Scintillation properties and radioactive contamination of CaWO4, ZnWO4, CdWO4, PbWO4, GSO(Ce), CeF3, yttrium-aluminum garnet doped with neodymium (YAG:Nd) crystal scintillators were studied. Applicability of these scintillators to search for double beta decay was discussed.

  20. Constraining four neutrino mass patterns from neutrinoless double beta decay

    E-Print Network [OSTI]

    Sandip Pakvasa; Probir Roy

    2002-04-19T23:59:59.000Z

    All existing data on neutrino oscillations (including those from the LSND experiment) imply a four neutrino scheme with six different allowed mass patterns. Some of the latter are shown to be disfavored by using a conservative upper bound on the $\\beta beta 0 \

  1. Significant neutrinoless double beta decay with quasi-Dirac neutrinos

    E-Print Network [OSTI]

    Pei-Hong Gu

    2012-09-13T23:59:59.000Z

    A significant signal of neutrinoless double beta decay can be consistent with the existence of light quasi-Dirac neutrinos. To demonstrate this possibility, we consider a realistic model where the neutrino masses and the neutrinoless double beta decay can be simultaneously generated after a Peccei-Quinn symmetry breaking.

  2. New determination of double-beta-decay properties in 48Ca: high-precision Q-value measurement and improved nuclear matrix element calculations

    E-Print Network [OSTI]

    A. A. Kwiatkowski; T. Brunner; J. D. Holt; A. Chaudhuri; U. Chowdhury; M. Eibach; J. Engel; A. T. Gallant; A. Grossheim; M. Horoi; A. Lennarz; T. D. Macdonald; M. R. Pearson; B. E. Schultz; M. C. Simon; R. A. Senkov; V. V. Simon; K. Zuber; J. Dilling

    2013-08-18T23:59:59.000Z

    We report a direct measurement of the Q-value of the neutrinoless double-beta-decay candidate 48Ca at the TITAN Penning-trap mass spectrometer, with the result that Q = 4267.98(32) keV. We measured the masses of both the mother and daughter nuclides, and in the latter case found a 1 keV deviation from the literature value. In addition to the Q-value, we also present results of a new calculation of the neutrinoless double-beta-decay nuclear matrix element of 48Ca. Using diagrammatic many-body perturbation theory to second order to account for physics outside the valence space, we constructed an effective shell-model double-beta-decay operator, which increased the nuclear matrix element by about 75% compared with that produced by the bare operator. The new Q-value and matrix element strengthen the case for a 48Ca double-beta-decay experiment.

  3. A direct proof of AGT conjecture at beta = 1

    E-Print Network [OSTI]

    A. Mironov; A. Morozov; Sh. Shakirov

    2010-12-14T23:59:59.000Z

    The AGT conjecture claims an equivalence of conformal blocks in 2d CFT and sums of Nekrasov functions (instantonic sums in 4d SUSY gauge theory). The conformal blocks can be presented as Dotsenko-Fateev beta-ensembles, hence, the AGT conjecture implies the equality between Dotsenko-Fateev beta-ensembles and the Nekrasov functions. In this paper, we prove it in a particular case of beta=1 (which corresponds to c = 1 at the conformal side and to epsilon_1 + epsilon_2 = 0 at the gauge theory side) in a very direct way. The central role is played by representation of the Nekrasov functions through correlators of characters (Schur polynomials) in the Selberg matrix models. We mostly concentrate on the case of SU(2) with 4 fundamentals, the extension to other cases being straightforward. The most obscure part is extending to an arbitrary beta: for beta \

  4. $\\beta$-decay of key titanium isotopes in stellar environment

    E-Print Network [OSTI]

    Nabi, Jameel-Un; 10.1142/S0218301311018174

    2011-01-01T23:59:59.000Z

    Amongst iron regime nuclei, $\\beta$-decay rates on titanium isotopes are considered to be important during the late phases of evolution of massive stars. The key $\\beta$-decay isotopes during presupernova evolution were searched from available literature and a microscopic calculation of the decay rates were performed using the proton-neutron quasiparticle random phase approximation (pn-QRPA) theory. As per earlier simulation results electron capture and $\\beta$-decay on certain isotopes of titanium are considered to be important for the presupernova evolution of massive stars. Earlier the stellar electron capture rates and neutrino energy loss rates due to relevant titanium isotopes were presented. In this paper we finally present the $\\beta$-decay rates of key titanium isotopes in stellar environment. The results are also compared against previous calculations. The pn-QRPA $\\beta$-decay rates are bigger at high stellar temperatures and smaller at high stellar densities compared to the large scale shell model...

  5. Adjusting the IP $\\beta$ Functions in RHIC

    E-Print Network [OSTI]

    Wittmer, W; Pilat, F; Ptitsyn, V; Van Zeijts, J

    2004-01-01T23:59:59.000Z

    The beta functions at the IP can be adjusted without perturbation of other optics functions via several approaches. In this paper we describe a scheme based on a vector knob, which assigns fixed values to the different tuning quadrupoles and scales them by a common multiplier. The values for the knob vector were calculated for a lattice without any errors using MADX. Previous studies for the LHC [1] have shown that this approach can meet the design goals. A specific feature of the RHIC lattice is the nested power supply system. To cope with the resulting problems a detailed response matrix analysis has been carried out and different sets of knobs were calculated and compared. The knobs were tested at RHIC during the 2004 run and preliminary results are discussed. Simultaneously a new approach to measure the beam sizes of both colliding beams at the IP, based on the tunability provided by the knobs, was developed and tested.

  6. Double beta decay and neutrino mass models

    E-Print Network [OSTI]

    Helo, J C; Ota, T; Santos, F A Pereira dos

    2015-01-01T23:59:59.000Z

    Neutrinoless double beta decay allows to constrain lepton number violating extensions of the standard model. If neutrinos are Majorana particles, the mass mechanism will always contribute to the decay rate, however, it is not a priori guaranteed to be the dominant contribution in all models. Here, we discuss whether the mass mechanism dominates or not from the theory point of view. We classify all possible (scalar-mediated) short-range contributions to the decay rate according to the loop level, at which the corresponding models will generate Majorana neutrino masses, and discuss the expected relative size of the different contributions to the decay rate in each class. We also work out the phenomenology of one concrete 2-loop model in which both, mass mechanism and short-range diagram, might lead to competitive contributions, in some detail.

  7. Neutrinoless Double Beta Decay with SNO+

    E-Print Network [OSTI]

    J. Hartnell; for the SNO+ collaboration

    2012-01-30T23:59:59.000Z

    SNO+ will search for neutrinoless double beta decay by loading 780 tonnes of linear alkylbenzene liquid scintillator with O(tonne) of neodymium. Using natural Nd at 0.1% loading will provide 43.7 kg of 150Nd given its 5.6% abundance and allow the experiment to reach a sensitivity to the effective neutrino mass of 100-200 meV at 90% C.L in a 3 year run. The SNO+ detector has ultra low backgrounds with 7000 tonnes of water shielding and self-shielding of the scintillator. Distillation and several other purification techniques will be used with the aim of achieving Borexino levels of backgrounds. The experiment is fully funded and data taking with light-water will commence in 2012 with scintillator data following in 2013.

  8. Correlations and the neutrinoless double beta decay

    SciTech Connect (OSTI)

    Menendez, J.; Poves, A. [Departamento de Fisica Teorica, and IFT, UAM-CSIC, Universidad Autonoma de Madrid, 28049-Madrid (Spain); Caurier, E.; Nowacki, F. [IPHC, IN2P3-CNRS/Universite Louis Pasteur, 67037-Strasbourg (France)

    2009-11-09T23:59:59.000Z

    We explore the influence of the deformation on the nuclear matrix elements of the neutrinoless double beta decay (NME), concluding that the difference in deformation -or more generally on the amount of quadrupole correlations- between parent and grand daughter nuclei quenchs strongly the decay. We discuss how varies the nuclear matrix element of {sup 76}Ge decay when the wave functions of the two nuclei involved in the transition are constrained to reproduce the experimental occupancies. In the Interacting Shell Model description the value of the NME is enhanced about 15% compared to previous calculations, whereas in the QRPA the NME's are reduced by 20%-30%, thus, the discrepancies between both approaches diminish.

  9. Molecular Dynamics Study of Fragmentation in Protofilaments of Amyloid Beta (16-42)

    E-Print Network [OSTI]

    Tabatabaie-Raissi, Omid

    2013-01-01T23:59:59.000Z

    amyloid toxicity based on beta-sheet packing of Abeta40 andof Fibrillar Amyloid-Beta Oligomers via Protofilament Pair323. [21] Iwatsubo amyloid beta protein deposition 1994 [22

  10. Beta-catenin/TCF4 transactivates miR-30e during intestinal cell differentiation

    E-Print Network [OSTI]

    Liao, Y.; Lönnerdal, B.

    2010-01-01T23:59:59.000Z

    Sciences RESEARCH ARTICLE Beta-catenin/TCF4 transactivatesSpringerlink.com Abstract The Wnt/beta-catenin/TCF4 pathwaydownstream targets of the beta-catenin/ TCF4 complex are not

  11. BETA-DELAYED PROTON EMISSION IN NEUTRON-DEFICIENT LRNTHANIDE ISOTOPES

    E-Print Network [OSTI]

    Witmarth, P.A.

    2010-01-01T23:59:59.000Z

    J.C. Hardy and E. Hubert. "Beta-delayed Proton astd Alphahalf-lives from (a) the grou theory of beta decay and (b)from Nilsson/RPA beta-strength function calculations for the

  12. Amyloid-beta Peptide Binds to Cytochrome C Oxidase Subunit 1

    E-Print Network [OSTI]

    2012-01-01T23:59:59.000Z

    Zarate E (2010) Intraneuronal beta-amyloid accumulation andKimball D (2004) Amyloid beta-peptide (1–42) contributes toTA (2004) A modified beta-amyloid hypothesis: intraneuronal

  13. Beta-arrestin inhibits CAMKKbeta-dependent AMPK activation downstream of protease-activated-receptor-2

    E-Print Network [OSTI]

    Wang, Ping; Jiang, Yong; Wang, Yinsheng; Shyy, John Y; DeFea, Kathryn A

    2010-01-01T23:59:59.000Z

    article as: Wang et al. : Beta-arrestin inhibits CAMKKbeta-P, Bokoch GM, DeFea KA: beta-arrestin- dependent regulationMullins RD, Bunnett NW: beta- arrestin-dependent endocytosis

  14. PHI BETA DELTA Zeta Gamma Chapter Honor Society for International Scholars

    E-Print Network [OSTI]

    Karonis, Nicholas T.

    PHI BETA DELTA · Zeta Gamma Chapter Honor Society for International Scholars Northern Illinois University Application for Membership · Student · Phi Beta Delta recognizes high scholastic achievement, if you are selected for membership in Phi Beta Delta

  15. The Beta-Neutrino Correlation in Sodium-21 and Other Nuclei

    E-Print Network [OSTI]

    Vetter, Paul A.; Abo-Shaeer, Jamil; Freedman, Stuart J.; Maruyama, Reina

    2008-01-01T23:59:59.000Z

    RIA?INTproc?abetanu THE BETA-NEUTRINO CORRELATION IN SODIUM-electrons shaken off in beta decay. High detection ef?ciencyTOF template spectra for beta decays to 21 Ne + , are shown

  16. Search for neutrinoless double beta decay with the NEMO-3 detector: first results

    E-Print Network [OSTI]

    Xavier Sarazin

    2004-12-03T23:59:59.000Z

    The NEMO-3 detector, which has been operating in the Frejus Underground Laboratory since February 2003, is devoted to searching for neutrinoless double beta decay (\\beta\\beta 0 \

  17. Exploring the Neutrinoless Double Beta Decay in the Inverted Neutrino Hierarchy with Bolometric Detectors

    E-Print Network [OSTI]

    Artusa, D. R.

    2014-01-01T23:59:59.000Z

    Exploring the Neutrinoless Double Beta Decay in the InvertedC. Giunti, Neutrinoless double-beta decay. A brief review,el- ements for neutrinoless double-beta decay and double-

  18. First results on neutrinoless double beta decay of Te-130 with the calorimetric cuoricino experiment

    E-Print Network [OSTI]

    2003-01-01T23:59:59.000Z

    Results on Neutrinoless Double Beta Decay of 130 Te with theEvidence for Neutrinoless Double Beta Decay” arXiv:hep-on “Evidence for neutrinoless double beta decay”- arXiv:hep-

  19. Constraining Mass Spectra with Sterile Neutrinos from Neutrinoless Double Beta Decay, Tritium Beta Decay and Cosmology

    E-Print Network [OSTI]

    Srubabati Goswami; Werner Rodejohann

    2006-05-18T23:59:59.000Z

    We analyze the constraints on neutrino mass spectra with extra sterile neutrinos as implied by the LSND experiment. The various mass related observables in neutrinoless double beta decay, tritium beta decay and cosmology are discussed. Both neutrino oscillation results as well as recent cosmological neutrino mass bounds are taken into account. We find that some of the allowed mass patterns are severely restricted by the current constraints, in particular by the cosmological constraints on the total sum of neutrino masses and by the non-maximality of the solar neutrino mixing angle. Furthermore, we estimate the form of the four neutrino mass matrices and also comment on the situation in scenarios with two additional sterile neutrinos.

  20. Constraining mass spectra with sterile neutrinos from neutrinoless double beta decay, tritium beta decay, and cosmology

    SciTech Connect (OSTI)

    Goswami, Srubabati [Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211 019 (India); Physik-Department, Technische Universitaet Muenchen, James-Franck-Strasse, D-85748 Garching (Germany); Rodejohann, Werner [Physik-Department, Technische Universitaet Muenchen, James-Franck-Strasse, D-85748 Garching (Germany)

    2006-06-01T23:59:59.000Z

    We analyze the constraints on neutrino mass spectra with extra sterile neutrinos as implied by the LSND experiment. The various mass related observables in neutrinoless double beta decay, tritium beta decay and cosmology are discussed. Both neutrino oscillation results as well as recent cosmological neutrino mass bounds are taken into account. We find that some of the allowed mass patterns are severely restricted by the current constraints, in particular, by the cosmological constraints on the total sum of neutrino masses and by the nonmaximality of the solar neutrino mixing angle. Furthermore, we estimate the form of the four neutrino mass matrices and also comment on the situation in scenarios with two additional sterile neutrinos.

  1. Neutrinoless Double Beta Decay in Gauge Theories

    E-Print Network [OSTI]

    J. D. Vergados

    1999-07-12T23:59:59.000Z

    Neutrinoless double beta decay is a very important process both from the particle and nuclear physics point of view. Its observation will severely constrain the existing models and signal that the neutrinos are massive Majorana particles. From the elementary particle point of view it pops up in almost every model. In addition to the traditional mechanisms, like the neutrino mass, the admixture of right handed currents etc, it may occur due to the R-parity violating supersymmetric (SUSY) interactions. From the nuclear physics point of view it is challenging, because: 1) The relevant nuclei have complicated nuclear structure. 2) The energetically allowed transitions are exhaust a small part of all the strength. 3) One must cope with the short distance behavior of the transition operators, especially when the intermediate particles are heavy (eg in SUSY models). Thus novel effects, like the double beta decay of pions in flight between nucleons, have to be considered. 4) The intermediate momenta involved are about 100 MeV. Thus one has to take into account possible momentum dependent terms in the nucleon current. We find that, for the mass mechanism, such modifications of the nucleon current for light neutrinos reduce the nuclear matrix elements by about 25 per cent, almost regardless of the nuclear model. In the case of heavy neutrinos the effect is much larger and model dependent. Taking the above effects into account, the available nuclear matrix elements for the experimentally interesting nuclei A = 76, 82, 96, 100, 116, 128, 130, 136 and 150 and the experimental limits on the life times we have extracted new stringent limits on the average neutrino mass and on the R-parity violating coupling for various SUSY models.

  2. {beta}{sub {beta}} measurements of neutron-rich isotopes in the mass region 147{le}A{le}152

    SciTech Connect (OSTI)

    Ikuta, T.; Taniguchi, A.; Yamamoto, H.; Kawade, K. [Nagoya Univ. (Japan); Kawase, Y. [Kyoto Univ., Osaka (Japan)

    1994-12-31T23:59:59.000Z

    The systematic Q{sub {beta}} measurements of 14 neutron-rich nuclei in the mass region from A=147 to A=152 have been performed with an HPGe detector. Neutron-rich nuclei were mass-separated from the thermal neutron induced fission of {sup 235}U using a He-N{sub 2} mixture-jet type on-line isotope separator which has been developed at the Kyoto University Reactor (KUR-ISOL). From a {beta}-ray singles and {beta}-{gamma} coincidence measurements, the Q{sub {beta}} values of {sup 147}La, {sup 147-150}Ce, {sup 147-152}Pr, {sup 152}Nd and {sup 152}Pm have been determined. In addition, the atomic masses derived from the experimental Q{sub {beta}} values are compared with the predictions of theoretical mass calculations.

  3. Sodium-Beta Batteries for Grid-Scale Storage: Planar Sodium-Beta Batteries for Renewable Integration and Grid Applications

    SciTech Connect (OSTI)

    None

    2010-02-01T23:59:59.000Z

    Broad Funding Opportunity Announcement Project: EaglePicher is developing a sodium-beta alumina (Na-Beta) battery for grid-scale energy storage. High-temperature Na-Beta batteries are a promising grid-scale energy storage technology, but existing approaches are expensive and unreliable. EaglePicher has modified the shape of the traditional, tubular-shaped Na-Beta battery. It is using an inexpensive stacked design to improve performance at lower temperatures, leading to a less expensive overall storage technology. The new design greatly simplifies the manufacturing process for beta alumina membranes (a key enabling technology), providing a subsequent pathway to the production of scalable, modular batteries at half the cost of the existing tubular designs.

  4. E-Print Network 3.0 - antimicrobial beta-hairpin peptide Sample...

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

    Chapter 17 Summary: modeling 12;Beta hairpin peptide Beta turns form early during protein folding and stabilize chain reversal... systematically - contrasts with alpha helix...

  5. Sandia Energy - SNL-SWAN Beta Code Development: Frequency-Dependent...

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

    Renewable Energy Energy Water Power SNL-SWAN Beta Code Development: Frequency-Dependent Wave-Energy Converter (WEC) Module Previous Next SNL-SWAN Beta Code Development:...

  6. Sandia Energy - SNL-SWAN Beta Code Development: Frequency-Dependent...

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

    Computational Modeling & Simulation SNL-SWAN Beta Code Development: Frequency-Dependent Wave-Energy Converter Module Previous Next SNL-SWAN Beta Code Development:...

  7. amyloid beta peptide-induced: Topics by E-print Network

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

    Summary: Scintillator detectors can be used in experiments searching for neutrinoless double beta decay. A wide variety of double beta decay candidate isotopes can be made into...

  8. Y. Gu, T. VanCourt, M.C. Herbordt / Proc. IEEE Conf. on Field Programmable Logic and Applications (2005) 1 ACCELERATING MOLECULAR DYNAMICS SIMULATIONS

    E-Print Network [OSTI]

    Herbordt, Martin

    2005-01-01T23:59:59.000Z

    (2005) 1 ACCELERATING MOLECULAR DYNAMICS SIMULATIONS WITH CONFIGURABLE CIRCUITS Yongfeng Gu Tom Van-space parameter for MD practitioners. 2. MOLECULAR DYNAMICS OVERVIEW Molecular Dynamics simulations generallyCourt Martin C. Herbordt Department of Electrical and Computer Engineering Boston University, Boston, MA 02215

  9. *. Master of Arts (McGill University), LL.B. (University of Toronto), law clerk to Mr. Justice Frank Iacobucci, Supreme Court of Canada, 1994-95.

    E-Print Network [OSTI]

    Spino, Claude

    Frank Iacobucci, Supreme Court of Canada, 1994-95. COMMENTAIRE CANADA'S NEW IMMIGRATION ACT: AN AFFRONT TO THE CHARTER AND CANADA'S COLLECTIVE CONSCIENCE? par Mark Anthony DRUMBL* Cet article examinera la.01(1) prévoit que sont désormais exclus du processus de détermination du statut de réfugié au Canada tous ceux

  10. The Student Conduct Process vs. the Criminal Process The student conduct system is different from the criminal court system. Generally, the student

    E-Print Network [OSTI]

    The Student Conduct Process vs. the Criminal Process The student conduct system is different from the criminal court system. Generally, the student conduct process involves a much more informal setting than a University support person during a hearing, another major difference between these two processes

  11. Nuclear-structure aspects of double beta decay

    SciTech Connect (OSTI)

    Suhonen, Jouni [Department of Physics, P.O. Box 35 (YFL), FI-40014 University of jyvaeskylae (Finland)

    2010-11-24T23:59:59.000Z

    Neutrinoless double beta (0{nu}{beta}{beta}) decay of nuclei is a process that requires the neutrino to be a massive Majorana particle and thus cannot proceed in the standard model of electro-weak interactions. Recent results of the neutrino-oscillation experiments have produced accurate information on the mixing of neutrinos and their squared mass differences. The 0{nu}{beta}{beta} decay takes place in atomic nuclei where it can be observed, at least in principle, by underground neutrino experiments. The need of nuclei in observation of the 0{nu}{beta}{beta} decay bears two facets: The nucleus serves as laboratory for detection but at the same time its complicated many-nucleon structure interferes strongly with the analysis of the experimental data. The information about the weak-interaction observables, like the neutrino mass, has to be filtered from the data through the nuclear matrix elements (NMEs). Hence, exact knowledge about the NMEs is of paramount importance in the analysis of the data provided by the expensive and time-consuming underground experiments.

  12. Beta Beams for Neutrino Production Heat Deposition from Decaying Ions in Superconducting Magnets

    E-Print Network [OSTI]

    Wildner, Elena; Cerutti, F

    2008-01-01T23:59:59.000Z

    This report describes studies of energy deposition in superconducting magnets from secondary ions in the "beta beam" decay ring as described in the base-line scenario of the EURISOL Beta Beam Design Study. The lattice structure proposed in the Design Study has absorber elements inserted between the superconducting magnets to protect the magnet coils. We describe an efficient and small model made to carry out the study. The specially developed options in the beam code "ACCSIM" to track largely off-momentum particles has permitted to extract the necessary information to interface the transport and interaction code "FLUKA" with the aim to calculate the heat deposition in the magnets and the absorbers. The two beta emitters 18Ne10+ and 6He2+ used for neutrino and anti-neutrino production and their daughter ions have been tracked. The absorber system proposed in the Design Study is efficient to intercept the ions decayed in the arc straight sections as foreseen, however, the continuous decay in the dipoles induce ...

  13. The Carbon-Rich Gas in the Beta Pictoris Circumstellar Disk

    E-Print Network [OSTI]

    Aki Roberge; Paul D. Feldman; Alycia J. Weinberger; Magali Deleuil; Jean-Claude Bouret

    2006-04-20T23:59:59.000Z

    The edge-on disk surrounding the nearby young star Beta Pictoris is the archetype of the "debris disks", which are composed of dust and gas produced by collisions and evaporation of planetesimals, analogues of Solar System comets and asteroids. These disks provide a window on the formation and early evolution of terrestrial planets. Previous observations of Beta Pic concluded that the disk gas has roughly solar abundances of elements [1], but this poses a problem because such gas should be rapidly blown away from the star, contrary to observations of a stable gas disk in Keplerian rotation [1, 2]. Here we report the detection of singly and doubly ionized carbon (CII, CIII) and neutral atomic oxygen (OI) gas in the Beta Pic disk; measurement of these abundant volatile species permits a much more complete gas inventory. Carbon is extremely overabundant relative to every other measured element. This appears to solve the problem of the stable gas disk, since the carbon overabundance should keep the gas disk in Keplerian rotation [3]. New questions arise, however, since the overabundance may indicate the gas is produced from material more carbon-rich than the expected Solar System analogues.

  14. Mechanism of mismatch recognition revealed by human MutS[beta] bound to unpaired DNA loops

    SciTech Connect (OSTI)

    Gupta, Shikha; Gellert, Martin; Yang, Wei (NIH)

    2012-04-17T23:59:59.000Z

    DNA mismatch repair corrects replication errors, thus reducing mutation rates and microsatellite instability. Genetic defects in this pathway cause Lynch syndrome and various cancers in humans. Binding of a mispaired or unpaired base by bacterial MutS and eukaryotic MutS{alpha} is well characterized. We report here crystal structures of human MutS{beta} in complex with DNA containing insertion-deletion loops (IDL) of two, three, four or six unpaired nucleotides. In contrast to eukaryotic MutS{alpha} and bacterial MutS, which bind the base of a mismatched nucleotide, MutS{beta} binds three phosphates in an IDL. DNA is severely bent at the IDL; unpaired bases are flipped out into the major groove and partially exposed to solvent. A normal downstream base pair can become unpaired; a single unpaired base can thereby be converted to an IDL of two nucleotides and recognized by MutS{beta}. The C-terminal dimerization domains form an integral part of the MutS structure and coordinate asymmetrical ATP hydrolysis by Msh2 and Msh3 with mismatch binding to signal for repair.

  15. IN-SITU TRITIUM BETA DETECTOR

    SciTech Connect (OSTI)

    J.W. Berthold; L.A. Jeffers

    1998-04-15T23:59:59.000Z

    The objectives of this three-phase project were to design, develop, and demonstrate a monitoring system capable of detecting and quantifying tritium in situ in ground and surface waters, and in water from effluent lines prior to discharge into public waterways. The tritium detection system design is based on measurement of the low energy beta radiation from the radioactive decay of tritium using a special form of scintillating optical fiber directly in contact with the water to be measured. The system consists of the immersible sensor module containing the optical fiber, and an electronics package, connected by an umbilical cable. The system can be permanently installed for routine water monitoring in wells or process or effluent lines, or can be moved from one location to another for survey use. The electronics will read out tritium activity directly in units of pico Curies per liter, with straightforward calibration. In Phase 1 of the project, we characterized the sensitivity of fluor-doped plastic optical fiber to tritium beta radiation. In addition, we characterized the performance of photomultiplier tubes needed for the system. In parallel with this work, we defined the functional requirements, target specifications, and system configuration for an in situ tritium beta detector that would use the fluor-doped fibers as primary sensors of tritium concentration in water. The major conclusions from the characterization work are: A polystyrene optical fiber with fluor dopant concentration of 2% gave best performance. This fiber had the highest dopant concentration of any fibers tested. Stability may be a problem. The fibers exposed to a 22-day soak in 120 F water experienced a 10x reduction in sensitivity. It is not known whether this was due to the build up of a deposit (a potentially reversible effect) or an irreversible process such as leaching of the scintillating dye. Based on the results achieved, it is premature to initiate Phase 2 and commit to a prototype design for construction and test. Significant improvements must be made in fluor-doped fiber performance in order to use the method for in situ monitoring to verify compliance with current EPA drinking water standards. Additional Phase 1 fiber development work should be performed to increase the fluor dopant concentration above 2% until the self-absorption limit is observed. Continued fiber optimization work is expected to improve the sensitivity limits, and will enable application of the detector to verify compliance with the US EPA drinking water standard of 20,000 pico Curies per liter. However, if the need for monitoring higher levels of tritium in water at concentrations greater than 200,000 pico Curies per liter is justified, then prototype development and testing could proceed either as a Phase 2 stand-alone effort or in parallel with continued Phase 1 development work.

  16. T violation in radiative $\\beta$ decay and electric dipole moments

    E-Print Network [OSTI]

    Dekens, W G

    2015-01-01T23:59:59.000Z

    In radiative $\\beta$ decay, $T$ violation can be studied through a spin-independent $T$-odd correlation. We consider contributions to this correlation by beyond the standard model (BSM) sources of $T$-violation, arising above the electroweak scale. At the same time such sources, parametrized by dimension-6 operators, can induce electric dipole moments (EDMs). As a consequence, the manifestations of the $T$-odd BSM physics in radiative $\\beta$ decay and EDMs are not independent. Here we exploit this connection to show that current EDM bounds already strongly constrain the spin-independent $T$-odd correlation in radiative $\\beta$ decay.

  17. Majorons Without Majorana Masses and Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    C. P. Burgess; J. M. Cline

    1992-09-30T23:59:59.000Z

    We explain excess events near the endpoints of the double beta decay spectra of several elements, using the neutrinoless emission of massless Goldstone bosons. Models with scalars carrying lepton number $-2$ are proposed for this purpose so that ordinary neutrinoless double beta decay is forbidden, and we can raise the scale of global symmetry breaking above the 10 keV scale needed for observable emission of conventional Majorons in double beta decay. The electron spectrum has a different shape, and the rate depends on different nuclear matrix elements, than for the emission of ordinary Majorons.

  18. Neutrinoless Double Beta Decay and Physics Beyond the Standard Model

    E-Print Network [OSTI]

    Rabindra N. Mohapatra

    1995-07-05T23:59:59.000Z

    The various mechanisms for neutrinoless double beta decay in gauge theories are reviewed and the present experimental data is used to set limits on physics scenarios beyond the standard model. The positive indications for nonzero neutrino masses in various experiments such as those involving solar, atmospheric and accelerator neutrinos are discussed and it is pointed out how some neutrino mass textures consistent with all data can be tested by the ongoing double beta decay experiments. Finally, the outlook for observable neutrinoless double beta decay signal in grand unified theories is discussed.

  19. Beta-delayed proton emission from $^{21}$Mg

    E-Print Network [OSTI]

    Lund, M V; Briz, J A; Cederkäll, J; Fynbo, H O U; Jensen, J H; Jonson, B; Laursen, K L; Nilsson, T; Perea, A; Pesudo, V; Riisager, K; Tengblad, O

    2015-01-01T23:59:59.000Z

    Beta-delayed proton emission from $^{21}$Mg has been measured at ISOLDE, CERN, with a detection setup including particle identification capabilities. $\\beta$-delayed protons with center of mass energies between 0.39$\\,$MeV and 7.2$\\,$MeV were measured and used to determine the half life of $^{21}$Mg as $118.6\\pm 0.5\\,$ms. From a line shape fit of the $\\beta p$ branches we extract spectroscopic information about the resonances of $^{21}$Na. Finally an improved interpretation of the decay scheme in accordance with the results obtained in reaction studies is presented.

  20. Nuclear moments for the neutrinoless double beta decay

    E-Print Network [OSTI]

    C. Barbero; F. Krmpotic; D. Tadic

    1998-02-23T23:59:59.000Z

    A derivation of the neutrinoless double beta decay rate, specially adapted for the nuclear structure calculations, is presented. It is shown that the Fourier-Bessel expansion of the hadronic currents, jointly with the angular momentum recoupling, leads to very simple final expressions for the nuclear form factors. This greatly facilitates the theoretical estimate of the half life. Our approach does not require the closure approximation, which however can be implemented if desired. The method is exemplified for the $\\beta\\beta$ decay $^{48}Ca \\to ^{48}Ti$, both within the QRPA and a shell-model like model.

  1. The iA{beta}5p {beta}-breaker peptide regulates the A{beta}(25-35) interaction with lipid bilayers through a cholesterol-mediated mechanism

    SciTech Connect (OSTI)

    Vitiello, Giuseppe [Department of Chemistry, University of Naples 'Federico II', Naples (Italy) [Department of Chemistry, University of Naples 'Federico II', Naples (Italy); CSGI (Consorzio per lo Sviluppo dei Sistemi a Grande Interfase), Florence (Italy)] [Consorzio per lo Sviluppo dei Sistemi a Grande Interfase; Italy; Grimaldi, Manuela; D'Ursi, Anna Maria [Department of Pharmaceutical Science, University of Salerno, Fisciano (Italy)] [Department of Pharmaceutical Science, University of Salerno, Fisciano (Italy); D'Errico, Gerardino, E-mail: gerardino.derrico@unina.it [Department of Chemistry, University of Naples 'Federico II', Naples (Italy) [Department of Chemistry, University of Naples 'Federico II', Naples (Italy); CSGI (Consorzio per lo Sviluppo dei Sistemi a Grande Interfase), Florence (Italy)] [Consorzio per lo Sviluppo dei Sistemi a Grande Interfase; Italy

    2012-01-06T23:59:59.000Z

    Highlights: Black-Right-Pointing-Pointer iA{beta}5p shows a significant tendency to deeply penetrates the hydrophobic core of lipid membrane. Black-Right-Pointing-Pointer A{beta}(25-35) locates in the external region of the membrane causing a re-positioning of CHOL. Black-Right-Pointing-Pointer iA{beta}5p withholds cholesterol in the inner hydrophobic core of the lipid membrane. Black-Right-Pointing-Pointer iA{beta}5p prevents the A{beta}(25-35) release from the lipid membrane. -- Abstract: Alzheimer's disease is characterized by the deposition of aggregates of the {beta}-amyloid peptide (A{beta}) in the brain. A potential therapeutic strategy for Alzheimer's disease is the use of synthetic {beta}-sheet breaker peptides, which are capable of binding A{beta} but unable to become part of a {beta}-sheet structure, thus inhibiting the peptide aggregation. Many studies suggest that membranes play a key role in the A{beta} aggregation; consequently, it is strategic to investigate the interplay between {beta}-sheet breaker peptides and A{beta} in the presence of lipid bilayers. In this work, we focused on the effect of the {beta}-sheet breaker peptide acetyl-LPFFD-amide, iA{beta}5p, on the interaction of the A{beta}(25-35) fragment with lipid membranes, studied by Electron Spin Resonance spectroscopy, using spin-labeled membrane components (either phospholipids or cholesterol). The ESR results show that iA{beta}5p influences the A{beta}(25-35) interaction with the bilayer through a cholesterol-mediated mechanism: iA{beta}5p withholds cholesterol in the inner hydrophobic core of the bilayer, making the interfacial region more fluid and capable to accommodate A{beta}(25-35). As a consequence, iA{beta}5p prevents the A{beta}(25-35) release from the lipid membrane, which is the first step of the {beta}-amyloid aggregation process.

  2. $\\beta$ Decay and Isomeric Properties of Neutron-Rich Ca and Sc Isotopes

    E-Print Network [OSTI]

    Crawford, H L; Mantica, P F; Berryman, J S; Broda, R; Carpenter, M P; Cieplicka, N; Fornal, B; Grinyer, G F; Hoteling, N; Kay, B P; Lauritsen, T; Minamisono, K; Stefanescu, I; Stoker, J B; Walters, W B; Zhu, S

    2010-01-01T23:59:59.000Z

    The isomeric and $\\beta$-decay properties of neutron-rich $^{53-57}$Sc and $^{53,54}$Ca nuclei near neutron number $N$=32 are reported, and the low-energy level schemes of $^{53,54,56}$Sc and $^{53-57}$Ti are presented. The low-energy level structures of the $_{21}$Sc isotopes are discussed in terms of the coupling of the valence $1f_{7/2}$ proton to states in the corresponding $_{20}$Ca cores. Implications with respect to the robustness of the $N$=32 subshell closure are discussed, as well as the repercussions for a possible $N$=34 subshell closure.

  3. Systematic trends in beta-delayed particle emitting nuclei: The case of beta-p-alpha emission from 21Mg

    E-Print Network [OSTI]

    M. V. Lund; M. J. G. Borge; J. A. Briz; J. Cederkäll; H. O. U. Fynbo; J. H. Jensen; B. Jonson; K. L. Laursen; T. Nilsson; A. Perea; V. Pesudo; K. Riisager; O. Tengblad

    2015-06-12T23:59:59.000Z

    We have observed beta+-delayed alpha and p-alpha emission from the proton-rich nucleus 21Mg produced at the ISOLDE facility at CERN. The assignments were cross-checked with a time distribution analysis. This is the third identified case of beta-p-alpha emission. We discuss the systematic of beta-delayed particle emission decays, show that our observed decays fit naturally into the existing pattern, and argue that the patterns are to a large extent caused by odd-even effects.

  4. High. beta. and ECRH studies in DIII-D

    SciTech Connect (OSTI)

    Stambaugh, R.; Allen, S.; Bramson, G.; Brooks, N.; Burrell, K.H.; Callis, R.; Carlstrom, T.; Chance, M.; Chu, M.; Colleraine, A.

    1988-05-01T23:59:59.000Z

    The DIII-D high and low beta stability results have established the basic feasibility of the divertor and H-mode configurations up to elongation 2.0 for next generation tokamaks. The 6.8% ..beta../sub T/ achieved has already exceeded projected operating requirements of next generation devices. ..beta../sub T/ > 6% has been sustained for 800 ms. Stability calculations and patterns of MHD mode behavior suggest a central expanding zone of ballooning instabilities leads ultimately to unstable m/n = 2/1 modes which cause beta collapse or disruption. The pressure gradient at the plasma edge just reaches the first regime ballooning limit prior to ELMs. ECRH has proven effective for generating H-mode, sawtooth suppression, and ELM suppression.

  5. New expectations and uncertainties on Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Dell'Oro, Stefano; Vissani, Francesco

    2014-01-01T23:59:59.000Z

    The discovery of neutrino oscillations and its implication that neutrinos have mass have boosted the importance of neutrinoless double beta decay. Neutrinoless double beta decay offers unique chances to investigate the nature of the neutrino mass term, giving also information on the absolute scale and the mass hierarchy, assuming that neutrinos are Majorana particles. We study the Majorana Effective Mass, i. e. the crucial parameter that regulates the rate of the neutrinoless double beta decay due to light neutrino exchange. We update the previous estimations of this parameter, using the most recent data analysis, phase space factors and nuclear matrix elements. We evaluate the impact of the quenching in the nuclear medium of the axial vector coupling constant, as discussed by Iachello and collaborators. We provide estimations of the sensitivity of recent and future neutrinoless double beta decay experiments in terms of the Majorana Effective Mass. Finally, we discuss the possibility of taking advantage of th...

  6. Double beta decay experiments: past and present achievements

    E-Print Network [OSTI]

    Alexander Barabash

    2006-08-23T23:59:59.000Z

    A brief history of double beta decay experiments is presented. The best currently running experiments (NEMO-3 and CUORICINO) and their latest results are described. The best measurements and limits for the $2\

  7. Double Beta Decay: Historical Review of 75 Years of Research

    E-Print Network [OSTI]

    A. S. Barabash

    2011-04-25T23:59:59.000Z

    Main achievements during 75 years of research on double beta decay have been reviewed. The existing experimental data have been presented and the capabilities of the next-generation detectors have been demonstrated.

  8. Double beta decay experiments: beginning of a new era

    E-Print Network [OSTI]

    A. S. Barabash

    2012-09-19T23:59:59.000Z

    The review of current experiments on search and studying of double beta decay processes is done. Results of the most sensitive experiments are discussed and values of modern limits on effective Majorana neutrino mass ($) are given. New results on two neutrino double beta decay are presented. The special attention is given to new current experiments with mass of studied isotopes more than 100 kg, EXO--200 and KamLAND--Zen. These experiments open a new era in research of double beta decay. In the second part of the review prospects of search for neutrinoless double beta decay in new experiments with sensitivity to $$ at the level of $\\sim 0.01-0.1$ eV are discussed. Parameters and characteristics of the most perspective projects (CUORE, GERDA, MAJORANA, SuperNEMO, EXO, KamLAND--Zen, SNO+) are given.

  9. Neutrinoless double beta decay, solar neutrinos and mass scales

    E-Print Network [OSTI]

    Per Osland; Geir Vigdel

    2001-09-13T23:59:59.000Z

    We obtain bounds for the neutrino masses by combining atmospheric and solar neutrino data with the phenomenology of neutrinoless double beta decay where hypothetical values of || are envisaged from future 0\

  10. Bounds on Compositeness from Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Orlando Panella; Yogendra N. Srivastava

    1994-11-07T23:59:59.000Z

    Assuming the existence of a heavy Majorana neutral particle arising from a composite model scenario we discuss the constraints imposed by present experimental limits of half-life neutrinoless double beta decay $(0\

  11. alpha beta gamma: Topics by E-print Network

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

    the decoupling limit, M2A0 gg M2Z, the heavy CP-even, CP-odd and charged Higgs boson masses are nearly degenerate, sin(beta-alpha) approaches 1, and the...

  12. Comment on "Evidence for Neutrinoless Double Beta Decay"

    E-Print Network [OSTI]

    C. E. Aalseth; F. T. Avignone III; A. Barabash; F. Boehm; R. L. Brodzinski; J. I. Collar; P. J. Doe; H. Ejiri; S. R. Elliott; E. Fiorini; R. J. Gaitskell; G. Gratta; R. Hazama; K. Kazkaz; G. S. King III; R. T. Kouzes; H. S. Miley; M. K. Moe; A. Morales; J. Morales; A. Piepke; R. G. H. Robertson; W. Tornow; P. Vogel; R. A. Warner; J. F. Wilkerson

    2002-05-22T23:59:59.000Z

    We comment on the recent claim for the experimental observation of neutrinoless double-beta decay. We discuss several limitations in the analysis provided in that paper and conclude that there is no basis for the presented claim.

  13. advanced beta thalassemia: Topics by E-print Network

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

    produce beams by storing unstable particles in a ring 2 Recent advances in neutrinoless double beta decay search Nuclear Experiment (arXiv) Summary: Even after the discovery of...

  14. Involvement of TGF-beta in skin photoaging

    E-Print Network [OSTI]

    Choi, Won Seon, 1975-

    2005-01-01T23:59:59.000Z

    The goal of this thesis study was to understand the role of TGF-[beta] in skin photoaging, especially in solar elastosis. Solar elastosis, the accumulation of elastotic material in the dermal extracelluar matrix, is a major ...

  15. Complementarity of Neutrinoless Double Beta Decay and Cosmology

    SciTech Connect (OSTI)

    Dodelson, Scott; Lykken, Joseph

    2014-03-20T23:59:59.000Z

    Neutrinoless double beta decay experiments constrain one combination of neutrino parameters, while cosmic surveys constrain another. This complementarity opens up an exciting range of possibilities. If neutrinos are Majorana particles, and the neutrino masses follow an inverted hierarchy, then the upcoming sets of both experiments will detect signals. The combined constraints will pin down not only the neutrino masses but also constrain one of the Majorana phases. If the hierarchy is normal, then a beta decay detection with the upcoming generation of experiments is unlikely, but cosmic surveys could constrain the sum of the masses to be relatively heavy, thereby producing a lower bound for the neutrinoless double beta decay rate, and therefore an argument for a next generation beta decay experiment. In this case as well, a combination of the phases will be constrained.

  16. Neutrinoless Double Beta Decay in Heavy Deformed Nuclei

    E-Print Network [OSTI]

    Jorge G. Hirsch; O. Castaños; P. O. Hess

    1994-07-12T23:59:59.000Z

    The zero neutrino mode of the double beta decay in heavy deformed nuclei is investigated in the framework of the pseudo SU(3) model, which has provided an accurate description of collective nuclear structure and predicted half-lives for the two neutrino mode in good agreement with experiments. In the case of $^{238}U$ the calculated zero neutrino half-life is at least three orders of magnitude greater than the two neutrino one, giving strong support of the identification of the radiochemically determined half-life as being the two neutrino double beta decay. For $^{150}Nd$ the zero neutrino matrix elements are of the order of magnitude of, but lesser than, those evaluated using the QRPA. This result confirms that different nuclear models produce similar zero neutrino matrix elements, contrary to the two neutrino case. Using these pseudo SU(3) results and the upper limit for the neutrino mass we estimate the $\\beta\\beta_{0\

  17. Induced pseudoscalar axial current in polarized nuclear [beta] decay

    SciTech Connect (OSTI)

    Ying, S. (Department of Physics, FM-15, University of Washington, Seattle, Washington 98195 (United States))

    1993-02-01T23:59:59.000Z

    In this paper we present a study of all spin-dependent observables (without observing the neutrinos), which are even under time reversal, for the 1[sup +][r arrow]0[sup +] [beta][sup [plus minus

  18. Neutrinoless Double Beta Decay with Negligible Neutrino Mass

    E-Print Network [OSTI]

    Biswajoy Brahmachari; Ernest Ma

    2002-02-27T23:59:59.000Z

    If the electron neutrino has an effective nonzero Majorana mass, then neutrinoless double beta decay will occur. However, the latter is possible also with a negligible neutrino mass. We show how this may happen in a simple model of scalar diquarks and dileptons. This possibility allows neutrino masses to be small and hierarchical, without conflicting with the possible experimental evidence of neutrinoless double beta decay.

  19. Constraints on neutrinoless double beta decay from neutrino oscillation experiments

    E-Print Network [OSTI]

    S. M. Bilenky; C. Giunti; M. Monteno

    1997-01-15T23:59:59.000Z

    We show that, in the framework of a general model with mixing of three Majorana neutrinos and a neutrino mass hierarchy, the results of the Bugey and Krasnoyarsk reactor neutrino oscillation experiments imply strong limitations for the effective Majorana mass || that characterizes the amplitude of neutrinoless double beta decay. We obtain further limitations on || from the data of the atmospheric neutrino experiments. We discuss the possible implications of the results of the future long baseline neutrino oscillation experiments for neutrinoless double beta decay.

  20. CP Violation in Neutrinoless Double Beta Decay and Neutrino Oscillation

    E-Print Network [OSTI]

    T. Fukuyama; K. Matsuda; H. Nishiura

    1998-03-03T23:59:59.000Z

    Taking account of possible CP violation, we discuss about the constraints on the lepton mixing angles from the neutrinoless double beta decay and from the neutrino oscillation for the three flavour Majorana neutrinos. From the CHORUS oscillation experiment, combined with the data of neutrinoless double beta decay, we show that the large angle solution of (\\theta_{23}) is improbable if the neutrino mass (m_3) of the third generation is a candidate of hot dark matters.

  1. {beta}-delayed neutron decay of {sup 14}Be

    SciTech Connect (OSTI)

    Belbot, M.D.; Kolata, J.J.; Lamkin, K.; Tighe, R.J.; Zahar, M. [Physics Department, University of Notre Dame, Notre Dame, Indiana 46556 (United States)] [Physics Department, University of Notre Dame, Notre Dame, Indiana 46556 (United States); Harkewicz, R.; Morrissey, D.J.; Orr, N.A.; Ronningen, R.M.; Sherrill, B.M.; Winger, J.A. [Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)] [Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States); Carpenter, M. [Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)] [Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

    1995-05-01T23:59:59.000Z

    The neutron spectroscopy of the {beta}-delayed neutron decay of {sup 14}Be has been investigated. Two neutron groups were observed, and energy limits are given for a third (unobserved) group that receives most of the {beta}-decay strength. Branching ratios and log{ital ft} values deduced for all three groups are compared with the results of a shell-model calculation.

  2. Neutrinoless double beta decay and direct searches for neutrino mass

    E-Print Network [OSTI]

    Craig Aalseth; Henning Back; Loretta Dauwe; David Dean; Guido Drexlin; Yuri Efremenko; Hiro Ejiri; Steven Elliott; Jon Engel; Brian Fujikawa; Reyco Henning; G. W. Hoffmann; Karol Lang; Kevin Lesko; Tadafumi Kishimoto; Harry Miley; Rick Norman; Silvia Pascoli; Serguey Petcov; Andreas Piepke; Werner Rodejohann; David Saltzberg; Sean Sutton; Petr Vogel; Ray Warner; John Wilkerson; Lincoln Wolfenstein

    2004-12-21T23:59:59.000Z

    Study of the neutrinoless double beta decay and searches for the manifestation of the neutrino mass in ordinary beta decay are the main sources of information about the absolute neutrino mass scale, and the only practical source of information about the charge conjugation properties of the neutrinos. Thus, these studies have a unique role in the plans for better understanding of the whole fast expanding field of neutrino physics.

  3. Effect of nuclear deformation on double beta decay

    SciTech Connect (OSTI)

    Rodin, Vadim [Institute fuer Theoretische Physik der Universitaet Tuebingen, D-72076 Tuebingen (Germany)

    2009-11-09T23:59:59.000Z

    The existing ways of accounting for deformation in recent calculations of neutrinoless double beta decay matrix elements are discussed. From an analysis of relevant experimental data it is argued that only {sup 150}Nd reveals convincing evidences of strong static deformation, which should eventually be taken into account in QRPA calculations. A proposal which allows in principle to measure the neutrino less double beta decay Fermi matrix element is briefly described.

  4. The Path to Large-Mass Double Beta Decay Experiments

    SciTech Connect (OSTI)

    Elliott, Steven R. [Los Alamos National Laboratory

    2012-08-08T23:59:59.000Z

    The technology is ready for atmospheric scale sensitivity and we can at least discuss it for the solar scale. Even null results will be interesting. Supporting measurements are important and have an impact. Need several mesurements with a total uncertainty (experiment and theory) of {approx} 50% or less, and eventually even better. If we see {beta}{beta} the qualitative physics results are profound, but next we'll want to quantify the underlying physics.

  5. Urocortin 3 Marks Mature Human Primary and Embryonic Stem Cell-Derived Pancreatic Alpha and Beta

    E-Print Network [OSTI]

    Sander, Maike

    Urocortin 3 Marks Mature Human Primary and Embryonic Stem Cell-Derived Pancreatic Alpha and Beta (Ucn 3) is abundantly and exclusively expressed in mouse pancreatic beta cells where it regulates of mouse beta cells. These observations identify Ucn 3 as a potential beta cell maturation marker

  6. Beta-Negative Binomial Process and Poisson Factor Analysis Mingyuan Zhou Lauren A. Hannah

    E-Print Network [OSTI]

    Carin, Lawrence

    Beta-Negative Binomial Process and Poisson Factor Analysis Mingyuan Zhou Lauren A. Hannah David B 27708, USA Abstract A beta-negative binomial (BNB) process is proposed, leading to a beta-gamma-Poisson process, which may be viewed as a "multi- scoop" generalization of the beta-Bernoulli process. The BNB

  7. Beta Smile and Coskewness: Theoretical and Empirical Results in Options Markets

    E-Print Network [OSTI]

    Egami, Masahiko

    Beta Smile and Coskewness: Theoretical and Empirical Results in Options Markets Masahiko Egami of the higher moment risks of option returns, namely beta and coskewness. Under mild assumptions, the investors' decreasing absolute risk aversion can result in a U-shaped pattern (a beta smile) for put option betas

  8. Which beta-shifts have a largest invariant measure? Vasso Anagnostopoulou & Oliver Jenkinson

    E-Print Network [OSTI]

    Jenkinson, Oliver

    Which beta-shifts have a largest invariant measure? Vasso Anagnostopoulou & Oliver Jenkinson Abstract. For a given beta-shift, the lexicographic order induces a partial order (known as first beta-shifts for which this partial order has a largest element. These beta-shifts are all of finite

  9. A Non-SUSY Model for Neutrino Oscillation, Baryogenesis and Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Holger Bech Nielsen; Yasutaka Takanishi

    2001-10-09T23:59:59.000Z

    We fitted the neutrino oscillations, baryogenesis and neutrinoless double beta decay using Anti-GUT model.

  10. What can we learn from neutrinoless double beta decay experiments? John N. Bahcall,* Hitoshi Murayama,

    E-Print Network [OSTI]

    Bahcall, John

    What can we learn from neutrinoless double beta decay experiments? John N. Bahcall,* Hitoshi-generation neutrinoless double beta decay and normal neutrino beta decay experi- ments can answer four fundamental questions. 1 If neutrinoless double beta decay searches do not detect a signal, and if the spectrum is known

  11. Systematic decomposition of the neutrinoless double beta decay operator

    E-Print Network [OSTI]

    Florian Bonnet; Martin Hirsch; Toshihiko Ota; Walter Winter

    2014-06-23T23:59:59.000Z

    We discuss the systematic decomposition of the dimension nine neutrinoless double beta decay operator, focusing on mechanisms with potentially small contributions to neutrino mass, while being accessible at the LHC. We first provide a (d=9 tree-level) complete list of diagrams for neutrinoless double beta decay. From this list one can easily recover all previously discussed contributions to the neutrinoless double beta decay process, such as the celebrated mass mechanism or "exotics", such as contributions from left-right symmetric models, R-parity violating supersymmetry and leptoquarks. More interestingly, however, we identify a number of new possibilities which have not been discussed in the literature previously. Contact to earlier works based on a general Lorentz-invariant parametrisation of the neutrinoless double beta decay rate is made, which allows, in principle, to derive limits on all possible contributions. We furthermore discuss possible signals at the LHC for mediators leading to the short-range part of the amplitude with one specific example. The study of such contributions would gain particular importance if there were a tension between different measurements of neutrino mass such as coming from neutrinoless double beta decay and cosmology or single beta decay.

  12. A solenoidal electron spectrometer for a precision measurement of the neutron $\\beta$-asymmetry with ultracold neutrons

    E-Print Network [OSTI]

    Plaster, B; Filippone, B W; Harrison, D; Hsiao, J; Ito, T M; Liu, J; Martin, J W; Tipton, B; Yuan, J

    2008-01-01T23:59:59.000Z

    We describe an electron spectrometer designed for a precision measurement of the neutron $\\beta$-asymmetry with spin-polarized ultracold neutrons. The spectrometer consists of a 1.0-Tesla solenoidal field with two identical multiwire proportional chamber and plastic scintillator electron detector packages situated within 0.6-Tesla field-expansion regions. Select results from performance studies of the spectrometer with calibration sources are reported.

  13. (n,n?[gamma]) reactions in 6?3?,?6?5?Cu and background in 0[nu] [beta] [beta] experiments

    E-Print Network [OSTI]

    Perepelitsa, Dennis V

    2008-01-01T23:59:59.000Z

    Measurements of (n, xn?[gamma]) reactions in Cu are important for understanding neutroninduced background for certain underground double beta decay experiments. Neutroninduced gammas are a contribution to background for ...

  14. Development of Lewis Base Catalyzed Stereoselective Methods for Synthesis of Beta- Lactones and Dyotropic Rearrangements of Tricyclic Beta-Lactones.

    E-Print Network [OSTI]

    Purohit, Vikram C.

    2010-01-14T23:59:59.000Z

    reagent and catalytic tetramisole are described for achieving practical, catalytic, enantioselective synthesis of beta-lactones from keto-acids. Preliminary studies toward conjugate addition- lactonization pathway provided a hint as to the complexity...

  15. RELAP-7 Beta Release: Summary of Capabilities

    SciTech Connect (OSTI)

    Richard C. Martineau; Hongbin Zhang; Haihua Zhao

    2014-12-01T23:59:59.000Z

    RELAP-7 is a nuclear systems safety analysis code being developed at the Idaho National Laboratory (INL). Building upon the decades of software development at the INL, we began the development of RELAP-7 in 2011 to support the Risk Informed Safety Margins Characterization (RISMC) Pathway. As part of this development, the first lines of RELAP-7 code were committed to the software revision control repository on November 7th, 2011. The overall design goal of RELAP-7 is to take advantage of the previous thirty years of advancements in computer architecture, software design, numerical methods, and physical models in order to provide capabilities needed for the RISMC methodology and to support nuclear power safety analysis. RELAP-7 is built using the INL’s modern scientific software development framework, MOOSE (Multi-physics Object Oriented Simulation Environment). MOOSE provides improved numerical calculations (including higher-order integration in both space and time, yielding converged second-order accuracy). The RELAP-7 code structure is based on multiple physical component models such as pipes, junctions, pumps, etc. Each component can have options for different fluid models such as single- and two-phase flow. This component-based and physics-based software architecture allows RELAP-7 to adopt different physical models for different applications. A relatively new two-phase hydrodynamic model, termed the “7-Equation model” for two phasic pressures, velocities, energies, and volumetric fraction, is incorporated into RELAP-7 for liquid-gas (water-steam) flows. This new model allows second-order integration because it is well-posed, which will reduce the numerical error associated with traditional systems analysis codes. In this paper, we provide a RELAP-7 capability list describing analysis features, range of applicability, and reactor components that will be available for the December 15th, 2014 beta release of the software.

  16. Neutron inelastic scattering and reactions in natural Pb as a background in neutrinoless double-beta-decay experiments

    E-Print Network [OSTI]

    V. E. Guiseppe; M. Devlin; S. R. Elliott; N. Fotiades; A. Hime; D. -M. Mei; R. O. Nelson; D. V. Perepelitsa

    2009-09-24T23:59:59.000Z

    Inelastic neutron scattering and reactions on Pb isotopes can result in gamma rays near the signature endpoint energy in a number of double-beta decay isotopes. In particular, there are gamma-ray transitions in Pb-206,207,208 that might produce energy deposits at the 76-Ge Q value in Ge detectors used for double-beta decay searches. The levels that produce these gamma rays can be excited by (n,n'gamma) or (n,xngamma) reactions, but the cross sections are small and previously unmeasured. This work uses the pulsed neutron beam at the Los Alamos Neutron Science Center to directly measure reactions of interest to double-beta decay experiments. The cross section on natural Pb to produce the 2041-keV gamma ray from Pb-206 is measured to be 3.6 +/- 0.7 (stat.) +/- 0.3 (syst.) mb at ~9.6 MeV. The cross section on natural Pb to produce the 3062-keV gamma ray from Pb-207 and Pb-208 is measured to be 3.9 +/- 0.8 (stat.) +/- 0.4 (syst.) mb at the same energy. We report cross sections or place upper limits on the cross sections for exciting some other levels in Pb that have transition energies corresponding to Q value in other double-beta decay isotopes.

  17. Predicting Reactor Antineutrino Emissions Using New Precision Beta Spectroscopy

    SciTech Connect (OSTI)

    Asner, David M.; Burns, Kimberly A.; Greenfield, Bryce A.; Kos, Marek S.; Orrell, John L.; Schram, Malachi; VanDevender, Brent A.; Wootan, David W.

    2013-05-01T23:59:59.000Z

    Neutrino experiments at nuclear reactors are currently vital to the study of neutrino oscillations. The observed antineutrino rates at reactors are typically lower than model expectations. This observed deficit is called the “reactor neutrino anomaly”. A new understanding of neutrino physics may be required to explain this deficit, though model estimation uncertainties may also play a role in the apparent discrepancy. PNNL is currently investigating an experimental technique that promises reduced uncertainties for measured data to support these hypotheses and interpret reactor antineutrino measurements. The experimental approach is to 1) direct a proton accelerator beam on a metal target to produce a source of neutrons, 2) use spectral tailoring to modify the neutron spectrum to closely simulate the energy distribution of a power reactor neutron spectrum, 3) irradiate isotopic fission foils (235U, 238U, 239Pu, 241Pu) in this neutron spectrum so that fissions occur at energies representative of a reactor, 4) transport the beta particles released by the fission products in the foils to a beta spectrometer, 5) measure the beta energy spectrum, and 6) invert the measured beta energy spectrum to an antineutrino energy spectrum. A similar technique using a beta spectrometer and isotopic fission foils was pioneered in the 1980’s at the ILL thermal reactor. Those measurements have been the basis for interpreting all subsequent antineutrino measurements at reactors. A basic constraint in efforts to reduce uncertainties in predicting the antineutrino emission from reactor cores is any underlying limitation of the original measurements. This may include beta spectrum energy resolution, the absolute normalization of beta emission to number of fission, statistical counting uncertainties, lack of 238U data, the purely thermal nature of the IIL reactor neutrons used, etc. An accelerator-based neutron source that can be tailored to match various reactor neutron spectra provides an advantage for control in studying how changes in the neutron spectra (i.e. "in the reactor core") affects the resulting fission product beta spectrum. Furthermore, the 238U antineutrino spectrum, which has not been measured, can be studied directly because of the enhanced 1 MeV fast neutron flux available at the accelerator source. A facility such as the Project X Injector Experiment (PXIE) 30 MeV proton linear accelerator at Fermilab is being considered for this experiment. The hypothesis is that a new approach utilizing the flexibility of an accelerator neutron source with spectral tailoring coupled with a careful design of an isotopic fission target and beta spectrometer and the inversion of the beta spectrum to the neutrino spectrum will allow further reduction in the uncertainties associated with prediction of the reactor antineutrino spectrum.

  18. Short-baseline electron neutrino disappearance, tritium beta decay, and neutrinoless double-beta decay

    SciTech Connect (OSTI)

    Giunti, Carlo; Laveder, Marco [INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino (Italy); Dipartimento di Fisica G. Galilei, Universita di Padova, and INFN, Sezione di Padova, Via F. Marzolo 8, I-35131 Padova (Italy)

    2010-09-01T23:59:59.000Z

    We consider the interpretation of the MiniBooNE low-energy anomaly and the gallium radioactive source experiments anomaly in terms of short-baseline electron neutrino disappearance in the framework of 3+1 four-neutrino mixing schemes. The separate fits of MiniBooNE and gallium data are highly compatible, with close best-fit values of the effective oscillation parameters {Delta}m{sup 2} and sin{sup 2}2{theta}. The combined fit gives {Delta}m{sup 2}(greater-or-similar sign)0.1 eV{sup 2} and 0.11(less-or-similar sign)sin{sup 2}2{theta}(less-or-similar sign)0.48 at 2{sigma}. We consider also the data of the Bugey and Chooz reactor antineutrino oscillation experiments and the limits on the effective electron antineutrino mass in {beta} decay obtained in the Mainz and Troitsk tritium experiments. The fit of the data of these experiments limits the value of sin{sup 2}2{theta} below 0.10 at 2{sigma}. Considering the tension between the neutrino MiniBooNE and gallium data and the antineutrino reactor and tritium data as a statistical fluctuation, we perform a combined fit which gives {Delta}m{sup 2}{approx_equal}2 eV and 0.01(less-or-similar sign)sin{sup 2}2{theta}(less-or-similar sign)0.13 at 2{sigma}. Assuming a hierarchy of masses m{sub 1}, m{sub 2}, m{sub 3}<beta} decay and neutrinoless double-{beta} decay are, respectively, between about 0.06 and 0.49 and between about 0.003 and 0.07 eV at 2{sigma}. We also consider the possibility of reconciling the tension between the neutrino MiniBooNE and gallium data and the antineutrino reactor and tritium data with different mixings in the neutrino and antineutrino sectors. We find a 2.6{sigma} indication of a mixing angle asymmetry.

  19. U.S. District Court Upholds DOE's Action Against LG to Enforce ENERGY STAR

    Energy Savers [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, 2015 -Helicopter Accident at RatonU.S.AdoptionCollegiateReport FY

  20. Energy Density Functional Study of Nuclear Matrix Elements for Neutrinoless {beta}{beta} Decay

    SciTech Connect (OSTI)

    Rodriguez, Tomas R. [GSI Helmholtzzentrum fuer Schwerionenforschung, D-64259 Darmstadt (Germany); Departamento de Fisica Teorica, Universidad Autonoma de Madrid, E-28049 Madrid (Spain); CEA, Irfu, SPhN, Centre de Saclay, F-911191 Gif-sur-Yvette (France); Martinez-Pinedo, Gabriel [GSI Helmholtzzentrum fuer Schwerionenforschung, D-64259 Darmstadt (Germany)

    2010-12-17T23:59:59.000Z

    We present an extensive study of nuclear matrix elements (NME) for the neutrinoless double-beta decay of the nuclei {sup 48}Ca, {sup 76}Ge, {sup 82}Se, {sup 96}Zr, {sup 100}Mo, {sup 116}Cd, {sup 124}Sn, {sup 128}Te, {sup 130}Te, {sup 136}Xe, and {sup 150}Nd based on state-of-the-art energy density functional methods using the Gogny D1S functional. Beyond-mean-field effects are included within the generating coordinate method with particle number and angular momentum projection for both initial and final ground states. We obtain a rather constant value for the NMEs around 4.7 with the exception of {sup 48}Ca and {sup 150}Nd, where smaller values are found. We analyze the role of deformation and pairing in the evaluation of the NME and present detailed results for the decay of {sup 150}Nd.

  1. T r a n s c r i p T | s p r i n g 2 0 0 8 Boalt's Death Penalty Clinic weighs in at the Supreme Court.

    E-Print Network [OSTI]

    Kammen, Daniel M.

    T r a n s c r i p T | s p r i n g 2 0 0 8 DeathRow Decision Boalt's Death Penalty Clinic weighs in at the Supreme Court. W hen the members of Boalt Hall's Death Penalty Clinic returned from hearing the oral a n s c r i p T CLINIC OBSERVERS: The Boalt team on the steps of the Supreme Court. Front row (left

  2. The beta-delayed neutron emission in 78Ni region

    E-Print Network [OSTI]

    I. N. Borzov

    2004-09-09T23:59:59.000Z

    A systematic study of the total $\\beta$-decay half-lives and $\\beta$-delayed neutron emission probabilities is performed. The $\\beta$-strength function is treated within the self-consistent density-functional + continuum-QRPA framework including the Gamow-Teller and first-forbidden transitions. The experimental total $\\beta$-decay half-lives for the Ni isotopes with $A\\leq$76 are described satisfactorily. The half-lives predicted from $A$=70 up to $A$=86 reveal fairly regular $A$-behaviour which results from simultaneous account for the Gamow-Teller and first-forbidden transitions. For $Z\\approx$ 28 nuclei, a suppression of the delayed neutron emission probability is found when the $N$=50 neutron closed shell is crossed. The effect originates from the high-energy first-forbidden transitions to the states outside the $Q_{\\beta} - S_n$-window in the daughter nuclei. PACS numbers: 23.40.Bw,21.60.Jz,25.30.Pt,26.30.+k

  3. The beta-delayed neutron emission in 78Ni region

    E-Print Network [OSTI]

    Borzov, I N

    2004-01-01T23:59:59.000Z

    A systematic study of the total $\\beta$-decay half-lives and $\\beta$-delayed neutron emission probabilities is performed. The $\\beta$-strength function is treated within the self-consistent density-functional + continuum-QRPA framework including the Gamow-Teller and first-forbidden transitions. The experimental total $\\beta$-decay half-lives for the Ni isotopes with $A\\leq$76 are described satisfactorily. The half-lives predicted from $A$=70 up to $A$=86 reveal fairly regular $A$-behaviour which results from simultaneous account for the Gamow-Teller and first-forbidden transitions. For $Z\\approx$ 28 nuclei, a suppression of the delayed neutron emission probability is found when the $N$=50 neutron closed shell is crossed. The effect originates from the high-energy first-forbidden transitions to the states outside the $Q_{\\beta} - S_n$-window in the daughter nuclei. PACS numbers: 23.40.Bw,21.60.Jz,25.30.Pt,26.30.+k

  4. IL1{beta}-mediated Stromal COX-2 signaling mediates proliferation and invasiveness of colonic epithelial cancer cells

    SciTech Connect (OSTI)

    Zhu, Yingting, E-mail: yitizhu@yahoo.com [University of Arizona Arizona Cancer Center Tissue Tech Inc, 7000 SW 97th Avenue Suite 212, Miami, FL 33173 (United States) [University of Arizona Arizona Cancer Center Tissue Tech Inc, 7000 SW 97th Avenue Suite 212, Miami, FL 33173 (United States); Tissue Tech Inc, Miami, FL 33173 (United States); Zhu, Min; Lance, Peter [University of Arizona Arizona Cancer Center Tissue Tech Inc, 7000 SW 97th Avenue Suite 212, Miami, FL 33173 (United States)] [University of Arizona Arizona Cancer Center Tissue Tech Inc, 7000 SW 97th Avenue Suite 212, Miami, FL 33173 (United States)

    2012-11-15T23:59:59.000Z

    COX-2 is a major inflammatory mediator implicated in colorectal inflammation and cancer. However, the exact origin and role of COX-2 on colorectal inflammation and carcinogenesis are still not well defined. Recently, we reported that COX-2 and iNOS signalings interact in colonic CCD18Co fibroblasts. In this article, we investigated whether activation of COX-2 signaling by IL1{beta} in primary colonic fibroblasts obtained from normal and cancer patients play a critical role in regulation of proliferation and invasiveness of human colonic epithelial cancer cells. Our results demonstrated that COX-2 level was significantly higher in cancer associated fibroblasts than that in normal fibroblasts with or without stimulation of IL-1{beta}, a powerful stimulator of COX-2. Using in vitro assays for estimating proliferative and invasive potential, we discovered that the proliferation and invasiveness of the epithelial cancer cells were much greater when the cells were co-cultured with cancer associated fibroblasts than with normal fibroblasts, with or without stimulation of IL1{beta}. Further analysis indicated that the major COX-2 product, prostaglandin E{sub 2}, directly enhanced proliferation and invasiveness of the epithelial cancer cells in the absence of fibroblasts. Moreover, a selective COX-2 inhibitor, NS-398, blocked the proliferative and invasive effect of both normal and cancer associate fibroblasts on the epithelial cancer cells, with or without stimulation of IL-1{beta}. Those results indicate that activation of COX-2 signaling in the fibroblasts plays a major role in promoting proliferation and invasiveness of the epithelial cancer cells. In this process, PKC is involved in the activation of COX-2 signaling induced by IL-1{beta} in the fibroblasts.

  5. Explaining the CMS $eejj$ Excess With $\\mathcal{R}-$parity Violating Supersymmetry and Implications for Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Allanach, Ben; Mondal, Subhadeep; Mitra, Manimala

    2014-01-01T23:59:59.000Z

    The recent CMS searches for the right handed gauge boson $W_R$ reports an interesting deviation from the Standard Model. The search has been conducted in the $eejj$ channel and has shown an excess around $m_{eejj} \\sim 2$ TeV. In this work, we explain the reported CMS excess with R-parity violating supersymmetry (SUSY). We consider the resonant slepton and sneutrino production, followed by the three body decays of neutralino and chargino via R-parity violating coupling. These fit the excess for slepton and sneutrino masses around 2 TeV. This scenario can further be tested in neutrinoless double beta decay experiment ($0\

  6. Shell model analysis of the neutrinoless double-{beta} decay of {sup 48}Ca

    SciTech Connect (OSTI)

    Horoi, Mihai [Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859 (United States); Stoica, Sabin [Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), 407 Atomistilor, Magurele-Bucharest, R-077125 (Romania)

    2010-02-15T23:59:59.000Z

    The neutrinoless double-{beta} (0{nu}{beta}{beta}) decay process could provide crucial information to determine the absolute scale of neutrino masses, and it is the only one that can establish whether a neutrino is a Dirac or a Majorana particle. A key ingredient for extracting the absolute neutrino masses from 0{nu}{beta}{beta} decay experiments is a precise knowledge of the nuclear matrix elements (NMEs) describing the half-life of this process. We developed a shell model approach for computing the 0{nu}{beta}{beta} decay NME, and we used it to analyze the 0{nu}{beta}{beta} mode of {sup 48}Ca. The dependence of the NME on the short-range correlation parameters, on the average energy of the intermediate states, on the finite-size cutoff parameters, and on the effective interaction used for many-body calculations is discussed.

  7. CD147 is a regulatory subunit of the gamma-secretase complex inAlzheimer's disease amyloid beta-peptide production

    SciTech Connect (OSTI)

    Zhou, Shuxia; Zhou, Hua; Walian, Peter J.; Jap, Bing K.

    2005-04-06T23:59:59.000Z

    {gamma}-secretase is a membrane protein complex that cleaves the {beta}-amyloid precursor protein (APP) within the transmembrane region, following prior processing by {beta}-secretase, producing amyloid {beta}-peptides (A{beta}{sub 40} and A{beta}{sub 42}). Errant production of A{beta}-peptides that substantially increases A{beta}{sub 42} production has been associated with the formation of amyloid plaques in Alzheimer's disease patients. Biophysical and genetic studies indicate that presenilin-1 (Psn-1), which contains the proteolytic active site, and three other membrane proteins, nicastrin (Nct), APH-1, and PEN-2 are required to form the core of the active {gamma}-secretase complex. Here, we report the purification of the native {gamma}-secretase complexes from HeLa cell membranes and the identification of an additional {gamma}-secretase complex subunit, CD147, a transmembrane glycoprotein with two immunoglobulin-like domains. The presence of this subunit as an integral part of the complex itself was confirmed through co-immunoprecipitation studies of the purified protein from HeLa cells and solubilized complexes from other cell lines such as neural cell HCN-1A and HEK293. Depletion of CD147 by RNA interference was found to increase the production of A{beta} peptides without changing the expression level of the other {gamma}-secretase components or APP substrates while CD147 overexpression had no statistically significant effect on amyloid {beta}-peptide production, other {gamma}-secretase components or APP substrates, indicating that the presence of the CD147 subunit within the {gamma}-secretase complex directly down-modulates the production of A{beta}-peptides. {gamma}-secretase was first recognized through its role in the production of the A{beta} peptides that are pathogenic in Alzheimer's disease (AD) (1). {gamma}-secretase is a membrane protein complex with unusual aspartyl protease activity that cleaves a variety of type I membrane proteins, such as APP, CD44, DCC, ErbB4, E-cadherin, LRP, N-cadherin, Nectin-1, and Notch, within their transmembranous regions (2-11); therefore, in addition to its role in AD, {gamma}-secretase has been found to participate in other important biological functions, such as intracellular signaling. {gamma}-secretase processing of APP requires prior removal of a major fragment of the APP extracellular domain (sAPP{sub {beta}}) by {beta}-secretase to yield a membrane bound fragment (APP CTF{sub {beta}}). Subsequent cleavage of this membrane bound fragment by {gamma}-secretase results in the release of the Alzheimer's disease (AD) associated amyloid {beta}-peptides (12). The proteolytic activity of {gamma}-secretase is found not to be critically dependent on the specific sequence, but instead on the size of the extracellular domain (13); such sequence independent characteristics of the substrate are reminiscent of those of the 26S proteasome complex that cleaves substrates in a non-sequence specific manner. {gamma}-secretase is present in almost all animal species, vertebrates and invertebrates; it is expressed in many human organs and tissues.

  8. 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.

  9. Beta Cephei stars in the inner part of the Galaxy

    E-Print Network [OSTI]

    A. Narwid; Z. Kolaczkowski; A. Pigulski; T. Ramza

    2005-10-04T23:59:59.000Z

    From the Fourier analysis of the catalogue of ~200,000 variable candidates in the OGLE-II Galactic fields, we found a sample of about 230 short-period low-amplitude variable stars. From their position in the colour-magnitude diagram and the observed periods (multiple in most cases), we identify the stars as a mixture of Beta Cephei and Delta Scuti stars. Beta Cephei stars from this sample are located in the Galactic disk at distances from 3 to 6 kpc. Many of them shows large range of the excited periods, an indication of high metallicity. We estimate that even a half of the sample of 230 short-period variables we found, can be Beta Cephei stars. The periods alone, however, are rarely sufficient to distinguish between both types of pulsators. We point out, how this can be done observationally.

  10. The Study of Media Beta Elliptical Cavities for CIADS

    E-Print Network [OSTI]

    Liangjian, Wen; Yongming, Li; Ruoxu, Wang; Hao, Guo; Cong, Zhang; Huan, Jia; Tiancai, Jiang; Chunlong, Li; Yuan, He

    2015-01-01T23:59:59.000Z

    The China Accelerator Driven Sub-critical System (CADS) is a high intensity proton facility to dispose of nuclear waste and generate electric power. CADS is based on 1.5GeV, 10mA CW superconducting (SC) linac as a driver. The high-energy section of the linac is compose of two families of SC elliptical cavities which are designed for the geometrical beta 0.63 and 0.82. In this paper, the 650 MHz \\b{eta}=0.63 SC elliptical cavity was studied including cavity optimization, multipacting, high order modes (HOMs) and generator RF power calculation. Keywords: high current, medium beta, ADS, superconducting cavity, HOMs

  11. Q value of the 100Mo Double-Beta Decay

    E-Print Network [OSTI]

    S. Rahaman; V. -V. Elomaa; T. Eronen; J. Hakala; A. Jokinen; J. Julin; A. Kankainen; A. Saastamoinen; J. Suhonen; C. Weber; J. Äystö

    2007-12-20T23:59:59.000Z

    Penning trap measurements using mixed beams of 100Mo - 100Ru and 76Ge - 76Se have been utilized to determine the double-beta decay Q-values of 100Mo and 76Ge with uncertainties less than 200 eV. The value for 76Ge, 2039.04(16) keV is in agreement with the published SMILETRAP value. The new value for 100Mo, 3034.40(17) keV is 30 times more precise than the previous literature value, sufficient for the ongoing neutrinoless double-beta decay searches in 100Mo. Moreover, the precise Q-value is used to calculate the phase-space integrals and the experimental nuclear matrix element of double-beta decay.

  12. Consequences of neutrinoless double beta decay and WMAP

    E-Print Network [OSTI]

    H. V. Klapdor-Kleingrothaus; U. Sarkar

    2003-04-03T23:59:59.000Z

    Observation of the neutrinoless double beta decay ($\\0n$) has established that there is lepton number violation in nature and the neutrino masses are Majorana in nature. It also gives the absolute mass of the neutrinos and discriminates between different models of neutrino masses. The allowed amount of lepton number violation puts severe constraints on some possible new physics beyond the standard model. The recent results from WMAP are consistent with the consequences of the neutrinoless double beta decay. They improve some of these constraints very marginally, which we shall summarise here. We mention the new physics which are not affected by WMAP and could make both these limits from the neutrinoless double beta decay and WMAP consistent.

  13. Decay experiments to test beta - and gamma -strength functions

    E-Print Network [OSTI]

    Hardy, J C

    1981-01-01T23:59:59.000Z

    The decays of six delayed-proton precursors have been studied with the particle-X-ray coincidence technique, yielding a more or less detailed view of level widths in the proton emitting nuclei. The results lead to a reevaluation of the techniques for calculating level densities and average gamma-decay widths in exotic nuclei. With these aspects of beta -delayed proton decay specified, the proton energy spectra of a number of precursors (65beta -strength functions. Overall, the 'gross theory' beta -strength functions are remarkably reliable, although some systematic deviations are observed in the xenon and tellurium isotopes. (30 refs).

  14. Extra dimensions and neutrinoless double beta decay experiments

    SciTech Connect (OSTI)

    Gozdz, Marek; Kaminski, Wieslaw A.; Faessler, Amand [Theoretical Physics Department, Maria Curie-Sklodowska University, Lublin (Poland); Institute fuer Theoretische Physik, Universitaet Tuebingen, Auf der Morgenstelle 14, D-72076 Tuebingen (Germany)

    2005-05-01T23:59:59.000Z

    The neutrinoless double beta decay is one of the few phenomena, belonging to the nonstandard physics, which is extensively being sought for in experiments. In the present paper the link between the half-life of the neutrinoless double beta decay and theories with large extra dimensions is explored. The use of the sensitivities of currently planned 0{nu}2{beta} experiments: DAMA, CANDLES, COBRA, DCBA, CAMEO, GENIUS, GEM, MAJORANA, MOON, CUORE, EXO, and XMASS, gives the possibility for a nondirect 'experimental' verification of various extra dimensional scenarios. We discuss also the results of the Heidelberg-Moscow Collaboration. The calculations are based on the Majorana neutrino mass generation mechanism in the Arkani-Hamed-Dimopoulos-Dvali model.

  15. Heavy Sterile Neutrinos and Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    Manimala Mitra; Goran Senjanovic; Francesco Vissani

    2012-05-17T23:59:59.000Z

    Sterile neutrinos of mass up to a few tens of TeV can saturate the present experimental bound of neutrinoless double beta decay process. Due to the updated nuclear matrix elements, the bound on mass and mixing angle is now improved by one order of magnitude. We have performed a detailed analysis of neutrinoless double beta decay for the minimal Type I seesaw scenario. We have shown that in spite of the naive expectation that the light neutrinos give the dominant contribution, sterile neutrinos can saturate the present experimental bound of neutrinoless double beta decay process. However, in order to be consistent with radiative stability of light neutrino masses, the mass scale of sterile neutrinos should be less than 10 GeV.

  16. Absolute Efficiency Calibration of a Beta-Gamma Detector

    SciTech Connect (OSTI)

    Cooper, Matthew W.; Ely, James H.; Haas, Derek A.; Hayes, James C.; McIntyre, Justin I.; Lidey, Lance S.; Schrom, Brian T.

    2013-04-10T23:59:59.000Z

    Abstract- Identification and quantification of nuclear events such as the Fukushima reactor failure and nuclear explosions rely heavily on the accurate measurement of radioxenon releases. One radioxenon detection method depends on detecting beta-gamma coincident events paired with a stable xenon measurement to determine the concentration of a plume. Like all measurements, the beta-gamma method relies on knowing the detection efficiency for each isotope measured. Several methods are commonly used to characterize the detection efficiency for a beta-gamma detector. The most common method is using a NIST certified sealed source to determine the efficiency. A second method determines the detection efficiencies relative to an already characterized detector. Finally, a potentially more accurate method is to use the expected sample to perform an absolute efficiency calibration; in the case of a beta-gamma detector, this relies on radioxenon gas samples. The complication of the first method is it focuses only on the gamma detectors and does not offer a solution for determining the beta efficiency. The second method listed is not similarly constrained, however it relies on another detector to have a well-known efficiency calibration. The final method using actual radioxenon samples to make an absolute efficiency determination is the most desirable, but until recently it was not possible to produce all four isotopically pure radioxenon. The production, by University of Texas (UT), of isotopically pure radioxenon has allowed the beta-gamma detectors to be calibrated using the absolute efficiency method. The first four radioxenon isotope calibration will be discussed is this paper.

  17. A FLUKA Study of $\\beta$-delayed Neutron Emission for the Ton-size DarkSide Dark Matter Detector

    E-Print Network [OSTI]

    Empl, Anton

    2014-01-01T23:59:59.000Z

    In the published cosmogenic background study for a ton-sized DarkSide dark matter search, only prompt neutron backgrounds coincident with cosmogenic muons or muon induced showers were considered, although observation of the initiating particle(s) was not required. The present paper now reports an initial investigation of the magnitude of cosmogenic background from $\\beta$-delayed neutron emission produced by cosmogenic activity in DarkSide. The study finds a background rate for $\\beta$-delayed neutrons in the fiducial volume of the detector on the order of < 0.1 event/year. However, detailed studies are required to obtain more precise estimates. The result should be compared to a radiogenic background event rate from the PMTs inside the DarkSide liquid scintillator veto of 0.2 events/year.

  18. Critical view to ''IGEX {sup 76}Ge neutrinoless double-beta decay experiment: Prospects for next generation experiments''

    SciTech Connect (OSTI)

    Klapdor-Kleingrothaus, H.V.; Dietz, A. [Max-Planck-Institut fuer Kernphysik, Postfach 10 39 80, D-69029 Heidelberg (Germany); Krivosheina, I. V. [Max-Planck-Institut fuer Kernphysik, Postfach 10 39 80, D-69029 Heidelberg (Germany); Radiophysical-Research Institute, Nishnii-Novgorod (Russian Federation)

    2004-10-01T23:59:59.000Z

    Recently, a paper entitled 'The IGEX {sup 76}Ge neutrinoless double-beta decay experiment: Prospects for next generation experiments' has been published [Phys. Rev. D 65, 092007 (2002)]. In view of the recently reported evidence for neutrinoless double-beta decay [Mod. Phys. Lett. A 16, 2409 (2001).; Found. Phys. 31, 1181 (2002); Phys. Lett. B 586, 198 (2004).], it is particularly unfortunate that the IGEX paper is rather incomplete in its presentation. We would like to point out in this Comment that and why it would be highly desirable to make more details about the experimental conditions and the analysis of IGEX available. We list some of the main points, which require further explanation. We also point to an arithmetic mistake in the analysis of the IGEX data, the consequence of which are too high half-life limits given in that paper.

  19. {sup 18}Ne production for the Beta beams project

    SciTech Connect (OSTI)

    Hodák, Rastislav [Institute of Experimental and Applied Physics, CTU in Prague, Horská 3/22a, CZ-12800 Prague (Czech Republic); Mendonça, Tania M. [IFIMUP and IN - Institute of Nanosciences and Nanotechnologies, Rua do Campo Alegre 687, 4169-007 Porto, Portugal and CERN, CH-1211 Geneva 23 (Swaziland); Stora, Thierry [CERN, CH-1211 Geneva 23 (Switzerland)

    2013-12-30T23:59:59.000Z

    Intense relativistic (anti)neutrino beams are an unique tool required to study fundamental properties of neutrinos such as neutrino oscillation parameters, as well as their Majorana or Dirac nature, the lepton number conservation hypothesis and the absolute neutrino mass scale. Such beams originate from acceleration of ?-decaying radioactive ions (“Beta beams”). A molten fluoride salt target has been developed for the production of the required rates of low-Q baseline isotope {sup 18}Ne for the Beta beams project. The prototyped unit has been tested on-line at ISOLDE-CERN. In this contribution an overview of the prototyping and on-line tests is presented.

  20. On the coherent behavior of pancreatic beta cell clusters

    E-Print Network [OSTI]

    Alessandro Loppini; Antonio Capolupo; Christian Cherubini; Alessio Gizzi; Marta Bertolaso; Simonetta Filippi; Giuseppe Vitiello

    2014-07-29T23:59:59.000Z

    Beta cells in pancreas represent an example of coupled biological oscillators which via communication pathways, are able to synchronize their electrical activity, giving rise to pulsatile insulin release. In this work we numerically analyze scale free self-similarity features of membrane voltage signal power density spectrum, through a stochastic dynamical model for beta cells in the islets of Langerhans fine tuned on mouse experimental data. Adopting the algebraic approach of coherent state formalism, we show how coherent molecular domains can arise from proper functional conditions leading to a parallelism with "phase transition" phenomena of field theory.

  1. Heavy Sterile Neutrinos and Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    P. Bamert; C. P. Burgess; R. N. Mohapatra

    1994-10-12T23:59:59.000Z

    We investigate the possibility of producing neutrinoless double beta decay without having an electron neutrino with a mass in the vicinity of 1 eV. We do so by having a much lighter electron neutrino mix with a much heavier (m > 1 GeV) sterile neutrino. We study the constraints on the masses and mixings of such heavy sterile neutrinos from existing laboratory, astrophysical and cosmological information, and discuss the properties it would require in order to produce a detectable signal in current searches for neutrinoless double beta decay.

  2. Consistency test of neutrinoless double beta decay with one isotope

    E-Print Network [OSTI]

    Michael Duerr; Manfred Lindner; Kai Zuber

    2011-11-17T23:59:59.000Z

    We discuss a consistency test which makes it possible to discriminate unknown nuclear background lines from neutrinoless double beta decay with only one isotope. By considering both the transition to the ground state and to the first excited $0^+$ state, a sufficiently large detector can reveal if neutrinoless double beta decay or some other nuclear physics process is at work. Such a detector could therefore simultaneously provide a consistency test for a certain range of Majorana masses and be sensitive to lower values of the effective Majorana mass.

  3. Consistency test of neutrinoless double beta decay with one isotope

    SciTech Connect (OSTI)

    Duerr, Michael; Lindner, Manfred [Max-Planck-Institut fuer Kernphysik, Postfach 10 39 80, 69029 Heidelberg (Germany); Zuber, Kai [Technical University Dresden, Institut fuer Kern- und Teilchenphysik, 01069 Dresden (Germany)

    2011-11-01T23:59:59.000Z

    We discuss a consistency test which makes it possible to discriminate unknown nuclear background lines from neutrinoless double beta decay with only one isotope. By considering both the transition to the ground state and to the first excited 0{sup +} state, a sufficiently large detector can reveal if neutrinoless double beta decay or some other nuclear physics process is at work. Such a detector could therefore simultaneously provide a consistency test for a certain range of Majorana masses and be sensitive to lower values of the effective Majorana mass .

  4. Empirical Survey of Neutrinoless Double Beta Decay Matrix Elements

    E-Print Network [OSTI]

    R. G. H. Robertson

    2013-01-07T23:59:59.000Z

    Neutrinoless double beta decay has been the subject of intensive theoretical work as it represents the only practical approach to discovering whether neutrinos are Majorana particles or not, and whether lepton number is a conserved quantum number. Available calculations of matrix elements and phase-space factors are reviewed from the perspective of a future large-scale experimental search for neutrinoless double beta decay. Somewhat unexpectedly, a uniform inverse correlation between phase space and the square of the nuclear matrix element emerges. As a consequence, no isotope is either favored or disfavored; all have qualitatively the same decay rate per unit mass for any given value of the Majorana mass.

  5. Double-{beta} decay Q value of {sup 150}Nd

    SciTech Connect (OSTI)

    Kolhinen, V. S.; Eronen, T.; Gorelov, D.; Hakala, J.; Jokinen, A.; Kankainen, A.; Moore, I. D.; Rissanen, J.; Saastamoinen, A.; Suhonen, J.; Aeystoe, J. [Department of Physics, P. O. Box 35 (YFL), FI-40014 University of Jyvaeskylae (Finland)

    2010-08-15T23:59:59.000Z

    The double-{beta} decay Q value of {sup 150}Nd was determined by using the JYFLTRAP Penning trap mass spectrometer. The measured mass difference between {sup 150}Nd and {sup 150}Sm is 3371.38(20) keV. This new value deviates by 3.7 keV from the previously adopted value of 3367.7(22) keV and is a factor of 10 more precise. Accurate knowledge of this Q value is important because {sup 150}Nd is a primary candidate to be used in the search for neutrinoless double-{beta} decay modes in several experiments.

  6. A New Cavity Design For Medium Beta Acceleration

    SciTech Connect (OSTI)

    He, Feisi [Peking University, Beijing (China); Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Wang, Haipeng [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States); Rimmer, Robert A. [Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)

    2014-02-01T23:59:59.000Z

    Heavy duty or cw, superconducting proton and heavy ion accelerators are being proposed and constructed worldwide. The total length of the machine is one of the main drivers in terms of cost. Thus hwr and spoke cavities at medium beta are usually optimized to achieve low surface field and high gradient. A novel accelerating structure at beta=0.5 evolved from spoke cavity is proposed, with lower surface fields but slightly higher heat load. It would be an interesting option for pulsed and cw accelerators with beam energy of more than 200mev/u.

  7. GERDA, a GERmanium Detector Array for the search for neutrinoless {beta}{beta} decay in 76Ge

    SciTech Connect (OSTI)

    Pandola, L.; Tomei, C. [INFN, Laboratori Nazionali del Gran Sasso, S.S. 17 bis km 18.910, 67010 Assergi (AQ) (Italy)

    2006-07-11T23:59:59.000Z

    The GERDA project, searching for neutrinoless double beta-decay of 76Ge with enriched germanium detectors submerged in a cryogenic bath, has been approved for installation at the Gran Sasso National Laboratory (LNGS), Italy. The GERDA technique is aiming at a dramatic reduction of the background due to radioactive contaminations of the materials surrounding the detectors. This will lead to a sensitivity of about 1026 years on the half-life of neutrinoless double beta decay. Already in the first phase of the experiment, GERDA will be able to investigate with high statistical significance the claimed evidence for neutrinoless double beta decay of 76Ge based on the data of the Heidelberg-Moscow experiment.

  8. Physics Division activities report, 1986--1987

    SciTech Connect (OSTI)

    Not Available

    1987-01-01T23:59:59.000Z

    This report summarizes the research activities of the Physics Division for the years 1986 and 1987. Areas of research discussed in this paper are: research on e/sup +/e/sup /minus// interactions; research on p/bar p/ interactions; experiment at TRIUMF; double beta decay; high energy astrophysics; interdisciplinary research; and advanced technology development and the SSC.

  9. Prenatal cadmium exposure dysregulates sonic hedgehog and Wnt/beta-catenin signaling in the thymus resulting in altered thymocyte development

    SciTech Connect (OSTI)

    Hanson, Miranda L.; Brundage, Kathleen M.; Schafer, Rosana [Department of Microbiology, Immunology and Cell Biology, West Virginia University School of Medicine, PO Box 9177, West Virginia University, Morgantown, WV 26506-9177 (United States); Tou, Janet C. [Department of Animal and Nutritional Sciences, Davis College of Agriculture, Forestry and Consumer Sciences, West Virginia University, Morgantown, WV 26506 (United States); Barnett, John B., E-mail: jbarnett@hsc.wvu.ed [Department of Microbiology, Immunology and Cell Biology, West Virginia University School of Medicine, PO Box 9177, West Virginia University, Morgantown, WV 26506-9177 (United States)

    2010-01-15T23:59:59.000Z

    Cadmium (Cd) is both an environmental pollutant and a component of cigarette smoke. Although evidence demonstrates that adult exposure to Cd causes changes in the immune system, there are limited reports in the literature of immunomodulatory effects of prenatal exposure to Cd. The sonic hedgehog (Shh) and Wnt/beta-catenin pathways are required for thymocyte maturation. Several studies have demonstrated that Cd exposure affects these pathways in different organ systems. This study was designed to investigate the effect of prenatal Cd exposure on thymocyte development, and to determine if these effects were linked to dysregulation of Shh and Wnt/beta-catenin pathways. Pregnant C57Bl/6 mice were exposed to an environmentally relevant dose (10 ppm) of Cd throughout pregnancy and effects on the thymus were assessed on the day of birth. Thymocyte phenotype was determined by flow cytometry. A Gli:luciferase reporter cell line was used to measure Shh signaling. Transcription of target genes and translation of key components of both signaling pathways were assessed using real-time RT-PCR and western blot, respectively. Prenatal Cd exposure increased the number of CD4{sup +} cells and a subpopulation of double-negative cells (DN; CD4{sup -}CD8{sup -}), DN4 (CD44{sup -}CD25{sup -}). Shh and Wnt/beta-catenin signaling were both decreased in the thymus. Target genes of Shh (Patched1 and Gli1) and Wnt/beta-catenin (c-fos, and c-myc) were affected differentially among thymocyte subpopulations. These findings suggest that prenatal exposure to Cd dysregulates two signaling pathways in the thymus, resulting in altered thymocyte development.

  10. On the possibility of sourcing a mono-energetic $\\bar?_{e}$ long baseline beta beam from bound beta decay

    E-Print Network [OSTI]

    Christopher Orme

    2009-11-24T23:59:59.000Z

    In this paper, the possibility of using fully stripped ions that can decay through bound beta decay to complement electron capture long baseline neutrino oscillation experiments is qualitatively analysed. The disadvantages of such a source are discussed through consideration of the technological challenges faced and the energy resolution required from the detector. It is concluded that ions that bound beta decay cannot be used as a source of mono-energetic anti-neutrinos in a realistic long baseline CP-even neutrino beam.

  11. Pancreatic beta cell failure in obese mice with human-like CMP-Neu5Ac hydroxylase deficiency

    E-Print Network [OSTI]

    Kavaler, Sarah

    2011-01-01T23:59:59.000Z

    Igf-1 receptor-mediated beta-cell development and peripheralGerich, J. (1995) Pancreatic beta-cell dysfunction as theC. , and Bodkin, N. L. (1990) Beta-cell hyperresponsiveness:

  12. Efficient TGF-beta/SMAD signaling in human melanoma cells associated with high c-SKI/SnoN expression

    E-Print Network [OSTI]

    Javelaud, Delphine; van Kempen, Leon; Alexaki, Vasileia I; Le Scolan, Erwan; Luo, Kunxin; Mauviel, Alain

    2011-01-01T23:59:59.000Z

    transforming growth factor-betas: Smad signaling and physio-HL: Abrogation of TGF-beta signaling enhances chemokine5. Akhurst RJ, Derynck R: TGF-beta signaling in cancer–a

  13. A measurement of the 2 neutrino double beta decay rate of 130Te in the CUORICINO experiment

    E-Print Network [OSTI]

    Kogler, Laura Katherine

    2011-01-01T23:59:59.000Z

    1.2.2 Neutrinoless double beta decay . . . . . 1.2.3 NuclearEvidence for Neutrinoless Double Beta Decay, Mod. Phys.on ’Evidence for Neutrinoless Double Beta Decay’, Mod. Phys.

  14. A measurement of the 2 neutrino double beta decay rate of Te-130 in the CUORICINO experiment

    E-Print Network [OSTI]

    Kogler, Laura

    2012-01-01T23:59:59.000Z

    1.2.2 Neutrinoless double beta decay . . . . . 1.2.3 NuclearEvidence for Neutrinoless Double Beta Decay, Mod. Phys.on ’Evidence for Neutrinoless Double Beta Decay’, Mod. Phys.

  15. A filter for reducing the angular dependence of LiF; Ti, Mg for beta radiation

    SciTech Connect (OSTI)

    Akabani, G.; Poston, J.W. Sr. (Texas A and M Univ., College Station, TX (United States))

    1990-06-01T23:59:59.000Z

    This paper reports on an improvement in the angular dependence of LiF:Ti,Mg (TAD-100) for beta radiation which was achieved by using a special filter design which produced a constant dosimeter response over a range of +70{degrees} and {minus}70{degrees}. The filter material used was acetate. The filter design was tested with three different beta sources, Sr/Y-90, Tl-204 and Pm-147 with average energies of 0.8, 0.24 and 0.06 MeV, respectively. The average response at 180 degrees of the new filtered dosimeter differed by less than 5% when compared to the response at zero degrees. An average decrease in sensitivity of 53% for Sr-90, 70% for Tl-204 and 67% for Pm-147 was obtained due to filter use. All doses were calculated for a depth dose in tissue of 0.07 mm equivalent to 7 mg/cm{sup 2} as is recommended in ICRP Publication 26. A comparison of the energy dependence for a bare TAD-100 at 0.0 mm and 0.07 mm depth in tissue was obtained.

  16. Nonlinear dielectric response of Debye, alpha, and beta relaxation in 1-propanol

    E-Print Network [OSTI]

    Th. Bauer; M. Michl; P. Lunkenheimer; A. Loidl

    2014-04-15T23:59:59.000Z

    We present nonlinear dielectric measurements of glass-forming 1-propanol, a prototypical example for the monohydroxy alcohols that are known to exhibit unusual relaxation dynamics, namely an additional Debye relaxation, slower than the structural alpha relaxation. Applying high ac fields of 468 kV/cm allows for a detailed investigation of the nonlinear properties of all three relaxation processes occurring in 1-propanol, namely the Debye, alpha, and beta relaxation. Both the field-induced variations of dielectric constant and loss are reported. Polarization saturation and the absorption of field energy govern the findings in the Debye-relaxation regime, well consistent with the suggested cluster-like nature of the relaxing entities. The behavior of the alpha relaxation is in good accord with the expectations for a heterogeneous relaxation scenario. Finally, the Johari-Goldstein beta-relaxation in 1-propanol seems to exhibit no or only weak field dependence, in agreement with recent findings for the excess wing of canonical glass formers.

  17. Polypeptides having beta-glucosidase activity and polynucleotides encoding same

    DOE Patents [OSTI]

    Morant, Marc D; Patkar, Shamkant; Ding, Hanshu

    2013-11-12T23:59:59.000Z

    The present invention relates to isolated polypeptides having beta-glucosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.

  18. Polypeptides having beta-glucosidase activity and polynucleotides encoding same

    SciTech Connect (OSTI)

    Harris, Paul (Carnation, WA); Golightly, Elizabeth (Reno, NV)

    2011-06-14T23:59:59.000Z

    The present invention relates to isolated polypeptides having beta-glucosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides.

  19. Polynucleotides encoding polypeptides having beta-glucosidase activity

    SciTech Connect (OSTI)

    Harris, Paul (Carnation, WA); Golightly, Elizabeth (Reno, NV)

    2010-03-02T23:59:59.000Z

    The present invention relates to isolated polypeptides having beta-glucosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides.

  20. Alpha-beta coordination method for collective search

    DOE Patents [OSTI]

    Goldsmith, Steven Y. (Albuquerque, NM)

    2002-01-01T23:59:59.000Z

    The present invention comprises a decentralized coordination strategy called alpha-beta coordination. The alpha-beta coordination strategy is a family of collective search methods that allow teams of communicating agents to implicitly coordinate their search activities through a division of labor based on self-selected roles and self-determined status. An agent can play one of two complementary roles. An agent in the alpha role is motivated to improve its status by exploring new regions of the search space. An agent in the beta role is also motivated to improve its status, but is conservative and tends to remain aggregated with other agents until alpha agents have clearly identified and communicated better regions of the search space. An agent can select its role dynamically based on its current status value relative to the status values of neighboring team members. Status can be determined by a function of the agent's sensor readings, and can generally be a measurement of source intensity at the agent's current location. An agent's decision cycle can comprise three sequential decision rules: (1) selection of a current role based on the evaluation of the current status data, (2) selection of a specific subset of the current data, and (3) determination of the next heading using the selected data. Variations of the decision rules produce different versions of alpha and beta behaviors that lead to different collective behavior properties.

  1. Double beta decay to the excited states: experimental review

    E-Print Network [OSTI]

    A. S. Barabash

    2007-10-11T23:59:59.000Z

    A brief review on double beta decay to excited states of daughter nuclei is given. The ECEC(ov) transision to the excited states are discussed in association with a possible enhancement of the decay rate by several orders of magnitude.

  2. ap star beta: Topics by E-print Network

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

    ap star beta First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Radial Velocity Variations in Pulsating Ap...

  3. Preparation of .alpha., .beta.-unsaturated carboxylic acids and anhydrides

    DOE Patents [OSTI]

    Spivey, James Jerry (Cary, NC); Gogate, Makarand Ratnakav (Durham, NC); Zoeller, Joseph Robert (Kingsport, TN); Tustin, Gerald Charles (Kingsport, TN)

    1998-01-01T23:59:59.000Z

    Disclosed is a process for the preparation of .alpha.,.beta.-unsaturated carboxylic acids and anhydrides thereof which comprises contacting formaldehyde or a source of formaldehyde with a carboxylic anhydride in the presence of a catalyst comprising mixed oxides of vanadium, phosphorus and, optionally, a third component selected from titanium, aluminum or, preferably silicon.

  4. amyloid beta aggregation: Topics by E-print Network

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

    amyloid beta aggregation First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Computational Insights into...

  5. Generator Coordinate Method framework for Double Beta Decay

    E-Print Network [OSTI]

    Andrzej Bobyk; Wies?aw A. Kami?ski

    2014-11-10T23:59:59.000Z

    We propose a consistent prescription for the derivation of the particle number and angular momentum projected QRPA (PQRPA) equation in the Generator Coordinate Method (GCM) framework for calculation of NME's of double-beta decay of axially deformed nuclei. We derive closed formulae for the calculation of excitation energies and wave functions of the intermediate nucleus.

  6. aggregated amyloid beta: Topics by E-print Network

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

    aggregated amyloid beta First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Computational Insights into...

  7. Preparation of .alpha.,.beta.-unsaturated carboxylic acids and esters

    DOE Patents [OSTI]

    Gogate, Makarand Ratnakar (Durham, NC); Spivey, James Jerry (Cary, NC); Zoeller, Joseph Robert (Kingsport, TN)

    1998-01-01T23:59:59.000Z

    Disclosed is a process for the preparation of .alpha.,.beta.-unsaturated carboxylic acids and esters thereof which comprises contacting formaldehyde or a source of formaldehyde with a carboxylic acid, ester or anhydride in the presence of a catalyst comprising an oxide of niobium.

  8. Non-perturbative beta function in three-dimensional electrodynamics

    E-Print Network [OSTI]

    Ohad Raviv; Yigal Shamir; Benjamin Svetitsky

    2014-05-27T23:59:59.000Z

    We apply the Schrodinger functional method to the Abelian gauge theory in three dimensions with Nf=2 four-component fermions. We find that the calculated beta function does not cross zero in the range of coupling we study. This implies that the theory exhibits confinement and mass generation, rather than a conformal infared regime.

  9. ILU 2.0beta1 Reference Manual Bill Janssen

    E-Print Network [OSTI]

    Janssen, Bill

    ILU 2.0beta1 Reference Manual Bill Janssen parc.xerox.com> Mike Spreitzer parc@xerox.com> Dan Larner parc@xerox.com> Chris Jacobi parc@xerox.com> (with contributions from Doug-Language Unification (ILU) system. Lots of people contributed significant amounts of code to the ILU system, including

  10. Polypeptides having beta-glucosidase activity and polynucleotides encoding same

    DOE Patents [OSTI]

    Harris, Paul; Golightly, Elizabeth

    2012-11-27T23:59:59.000Z

    The present invention relates to isolated polypeptides having beta-glucosidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods for producing and using the polypeptides.

  11. Effects of New Gravitational Interactions on Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    H. V. Klapdor--Kleingrothaus; H. Päs; U. Sarkar

    2000-04-13T23:59:59.000Z

    It has recently been proposed that violations of Lorentz invariance or violations of the equivalence principle can be constrained from the non-observation of neutrinoless double beta decay. We generalize this analysis to all possible new gravitational interactions and discuss briefly the constraints for different cases.

  12. Preparation of {alpha},{beta}-unsaturated carboxylic acids and esters

    DOE Patents [OSTI]

    Gogate, M.R.; Spivey, J.J.; Zoeller, J.R.

    1998-09-15T23:59:59.000Z

    Disclosed is a process for the preparation of {alpha},{beta}-unsaturated carboxylic acids and esters thereof which comprises contacting formaldehyde or a source of formaldehyde with a carboxylic acid, ester or anhydride in the presence of a catalyst comprising an oxide of niobium.

  13. Neutrinoless Double Beta Decay and {nu}-Mass Determination

    SciTech Connect (OSTI)

    Pedretti, M. [Universita dell Insubria, Via Vallegio 11, 22100 Como (Italy)

    2005-10-12T23:59:59.000Z

    The search for Neutrinoless Double Beta Decay could improve our knowledge on neutrino properties. After a brief discussion on the implications of the observation of this rare process, I will introduce the experimental approaches and review the prospects of the search for this nuclear transition.

  14. Neutrinoless double beta decay mediated by the neutrino magnetic moment

    E-Print Network [OSTI]

    Gó?d?, Marek

    2014-01-01T23:59:59.000Z

    We present a new channel of the neutrinoless double beta decay. In this scenario neutrinos not only oscillate inside the nucleus but also interact with an external non-uniform magnetic field. We assume that the field rotates about the direction of motion of the neutrino and show, that for a certain speed of rotation the half-life of the $0\

  15. Conditions for detecting CP violation via neutrinoless double beta decay

    E-Print Network [OSTI]

    Alicja Joniec; Marek Zralek

    2005-12-30T23:59:59.000Z

    Neutrinoless double beta decay data together with information on the absolute neutrino masses obtained from the future KATRIN experiment and/or astrophysical measurements give a chance to find CP violation in the lepton sector with Majorana neutrinos. We derive and discuss necessary conditions which make discovery of such CP violation possible for the future neutrino oscillation and mass measurements data.

  16. Majorana neutrino masses and the neutrinoless double-beta decay

    SciTech Connect (OSTI)

    Faessler, A. [University of Tuebingen, Institute of Theoretical Physics (Germany)], E-mail: amand.faessler@uni-tuebingen.de

    2006-12-15T23:59:59.000Z

    Neutrinoless double-beta decay is forbidden in the Standard Model of electroweak and strong interaction but allowed in most Grand Unified Theories (GUTs). Only if the neutrino is a Majorana particle (identical with its antiparticle) and if it has a mass is neutrinoless double-beta decay allowed. Apart from one claim that the neutrinoless double-beta decay in {sup 76}Ge is measured, one has only upper limits for this transition probability. But even the upper limits allow one to give upper limits for the electron Majorana neutrino mass and upper limits for parameters of GUTs and the minimal R-parity-violating supersymmetric model. One further can give lower limits for the vector boson mediating mainly the right-handed weak interaction and the heavy mainly right-handed Majorana neutrino in left-right symmetric GUTs. For that, one has to assume that the specific mechanism is the leading one for neutrinoless double-beta decay and one has to be able to calculate reliably the corresponding nuclear matrix elements. In the present work, one discusses the accuracy of the present status of calculating of the nuclear matrix elements and the corresponding limits of GUTs and supersymmetric parameters.

  17. Neutrinoless double beta decay mediated by the neutrino magnetic moment

    E-Print Network [OSTI]

    Marek Gó?d?; Wies?aw A. Kami?ski

    2014-11-07T23:59:59.000Z

    We present a new channel of the neutrinoless double beta decay. In this scenario neutrinos not only oscillate inside the nucleus but also interact with an external non-uniform magnetic field. We assume that the field rotates about the direction of motion of the neutrino and show, that for a certain speed of rotation the half-life of the $0\

  18. Scaling Factor Inconsistencies in Neutrinoless Double Beta Decay

    E-Print Network [OSTI]

    S. Cowell

    2005-12-05T23:59:59.000Z

    The modern theory of neutrinoless double beta decay includes a scaling factor that has often been treated inconsistently in the literature. The nuclear contribution to the decay half life can be suppressed by 15-20% when scaling factors are mismatched. Correspondingly, $$ is overestimated.

  19. Conditions for detecting CP violation via neutrinoless double beta decay

    SciTech Connect (OSTI)

    Joniec, A.; Zralek, M. [Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice (Poland)

    2006-02-01T23:59:59.000Z

    Neutrinoless double beta decay data, together with information on the absolute neutrino masses obtained from the future KATRIN experiment and/or astrophysical measurements, provide a chance to find CP violation in the lepton sector with Majorana neutrinos. We derive and discuss necessary conditions which make discovery of such CP violation possible for the future neutrino oscillation and mass measurements data.

  20. Neutrino masses and Neutrinoless Double Beta Decay: Status and expectations

    E-Print Network [OSTI]

    Oliviero Cremonesi

    2010-02-07T23:59:59.000Z

    Two most outstanding questions are puzzling the world of neutrino Physics: the possible Majorana nature of neutrinos and their absolute mass scale. Direct neutrino mass measurements and neutrinoless double beta decay (0nuDBD) are the present strategy to solve the puzzle. Neutrinoless double beta decay violates lepton number by two units and can occurr only if neutrinos are massive Majorana particles. A positive observation would therefore necessarily imply a new regime of physics beyond the standard model, providing fundamental information on the nature of the neutrinos and on their absolute mass scale. After the observation of neutrino oscillations and given the present knowledge of neutrino masses and mixing parameters, a possibility to observe 0nuDBDD at a neutrino mass scale in the range 10-50 meV could actually exist. This is a real challenge faced by a number of new proposed projects. Present status and future perpectives of neutrinoless double-beta decay experimental searches is reviewed. The most important parameters contributing to the experimental sensitivity are outlined. A short discussion on nuclear matrix element calculations is also given. Complementary measurements to assess the absolute neutrino mass scale (cosmology and single beta decays) are also discussed.