National Library of Energy BETA

Sample records for bulb efficiency violations

  1. How Energy-Efficient Light Bulbs Compare with Traditional Incandescent...

    Office of Environmental Management (EM)

    Energy-Efficient Light Bulbs Compare with Traditional Incandescents How Energy-Efficient Light Bulbs Compare with Traditional Incandescents November 5, 2014 - 11:39pm Addthis By...

  2. How Energy-Efficient Light Bulbs Compare with Traditional Incandescent...

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

    used light fixtures or bulbs with models that have earned the ENERGY STAR, you can save 75 each year. Compared to traditional incandescents, energy-efficient lightbulbs...

  3. Free Energy Efficiency Kit includes CFL light bulbs,

    E-Print Network [OSTI]

    Rose, Annkatrin

    Free Energy Efficiency Kit Kit includes CFL light bulbs, spray foam, low-flow shower head, and more for discounted energy assessments. FREE HOME ENERGY EFFICIENCY SEMINAR N e w R i ver L i g ht & Pow e r a n d W! Building Science 101 Presentation BPI Certified Building Professionals will present home energy efficiency

  4. Text-Alternative Version: L Prize™: The Race for Super Efficient Light Bulbs

    Broader source: Energy.gov [DOE]

    Below is the text-alternative version of the L Prize™: The Race for Super Efficient Light Bulbs webcast.

  5. How Energy-Efficient Light Bulbs Compare with Traditional Incandescent...

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

    you can save 75 each year. Compared to traditional incandescents, energy-efficient lightbulbs such as halogen incandescents, compact fluorescent lamps (CFLs), and light emitting...

  6. L Prize™: The Race for Super Efficient Light Bulbs

    Broader source: Energy.gov [DOE]

    This September 23, 2008 webcast provided an overview of the Bright Tomorrow Lighting Prize (L Prize) technology competition. The L Prize calls for super-efficient SSL products to replace two of the...

  7. Bell inequalities violated using detectors of low efficiency

    E-Print Network [OSTI]

    Karoly F. Pal; Tamas Vertesi

    2015-08-06

    We define a family of binary outcome $n$-party $m\\leq n$ settings per party Bell inequalities whose members require the least detection efficiency for their violation among all known inequalities of the same type. This gives upper bounds for the minimum value of the critical efficiency --- below which no violation is possible --- achievable for such inequalities. For $m=2$, our family reduces to the one given by Larsson and Semitecolos in 2001. For $m>2$, a gap remains between these bounds and the best lower bounds. The violating state near the threshold efficiency always approaches a product state of $n$ qubits.

  8. An efficient probe of the cosmological CPT violation

    E-Print Network [OSTI]

    Zhao, Gong-Bo; Xia, Jun-Qing; Li, Mingzhe; Zhang, Xinmin

    2015-01-01

    We develop an efficient method based on the linear regression algorithm to probe the cosmological CPT violation using the CMB polarisation data. We validate this method using simulated CMB data and apply it to recent CMB observations. We find that a combined data sample of BICEP1 and BOOMERanG 2003 favours a nonzero isotropic rotation angle at $2.3\\sigma$ confidence level, ie, $\\Delta\\alpha=-3.3 \\pm1.4$ deg (68% CL) with systematics included.

  9. Jacketed lamp bulb envelope

    DOE Patents [OSTI]

    MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD); Gitsevich, Aleksandr (Gaithersburg, MD); Bass, Gary K. (Mt. Airy, MD); Dolan, James T. (Frederick, MD); Kipling, Kent (Gaithersburg, MD); Kirkpatrick, Douglas A. (Great Falls, VA); Leng, Yongzhang (Damascus, MD); Levin, Izrail (Silver Spring, MD); Roy, Robert J. (Frederick, MD); Shanks, Bruce (Gaithersburg, MD); Smith, Malcolm (Alexandria, VA); Trimble, William C. (Columbia, MD); Tsai, Peter (Olney, MD)

    2001-01-01

    A jacketed lamp bulb envelope includes a ceramic cup having an open end and a partially closed end, the partially closed end defining an aperture, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material at least partially covering a portion of the bulb not abutting the aperture. The reflective ceramic material may substantially fill an interior volume of the ceramic cup not occupied by the bulb. The ceramic cup may include a structural feature for aiding in alignment of the jacketed lamp bulb envelope in a lamp. The ceramic cup may include an external flange about a periphery thereof. One example of a jacketed lamp bulb envelope includes a ceramic cup having an open end and a closed end, a ceramic washer covering the open end of the ceramic cup, the washer defining an aperture therethrough, a lamp bulb positioned inside the ceramic cup abutting the aperture, and a reflective ceramic material filling an interior volume of the ceramic cup not occupied by the bulb. A method of packing a jacketed lamp bulb envelope of the type comprising a ceramic cup with a lamp bulb disposed therein includes the steps of filling the ceramic cup with a flowable slurry of reflective material, and applying centrifugal force to the cup to pack the reflective material therein.

  10. Consumer Light Bulb Changes: Briefing and Resources for Media...

    Office of Environmental Management (EM)

    background information on the new legislation and the types of energy-efficient lighting available today. Consumer Light Bulb Changes: Briefing and Resources for Media and...

  11. DOE Closes Investigation into Alleged Lighting Efficiency Violations |

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i pState Efficiency,Energy News Media- TheEnergyofDecember

  12. Lamp bulb with integral reflector

    DOE Patents [OSTI]

    Levin, Izrail (Silver Spring, MD); Shanks, Bruce (Gaithersburg, MD); Sumner, Thomas L. (Wheaton, MD)

    2001-01-01

    An improved electrodeless discharge lamp bulb includes an integral ceramic reflector as a portion of the bulb envelope. The bulb envelope further includes two pieces, a reflector portion or segment is cast quartz ceramic and a light transmissive portion is a clear fused silica. In one embodiment, the cast quartz ceramic segment includes heat sink fins or stubs providing an increased outside surface area to dissipate internal heat. In another embodiment, the quartz ceramic segment includes an outside surface fused to eliminate gas permeation by polishing.

  13. Comparing Light Bulbs

    Office of Energy Efficiency and Renewable Energy (EERE)

    In this exercise, students will use a light to demonstrate the difference between being energy-efficient and energy-wasteful, and learn what energy efficiency means.

  14. SuperBulbs Inc | 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeter BatterySolarfinMarketMember CorpSunvie SAS Jump to:SunwaysSuperBulbs

  15. Purchasing Energy-Efficient Light Bulbs | Department of Energy

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

    trap heat and increase temperatures in which lamps operate. This heat build-up can impact the performance and life expectancy of certain CFL or LED products. When purchasing...

  16. Purchasing Energy-Efficient Light Bulbs | 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 Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo. 195 - Oct. 7, 2011 |1 DOE Hydrogen and FuelAwardee: City

  17. How Energy-Efficient Light Bulbs Compare with Traditional Incandescents |

    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 Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof Energy ServicesContracting OversightEMSHome

  18. CALiPER Snapshot Report: Light Bulbs

    SciTech Connect (OSTI)

    2013-10-01

    Snapshot reports use data from DOE's LED Lighting Facts product list to compare the LED performance to standard technologies, and are designed to help lighting retailers, distributors, designers, utilities, energy efficiency program sponsors, and other stakeholders understand the current state of the LED market and its trajectory.

  19. Randolph EMC- Agricultural Efficient Lighting Rebate Program

    Broader source: Energy.gov [DOE]

    Agricultural members of Randolph EMC (REMC) who upgrade to energy-efficient CFL bulbs in agricultural facilities are eligible for an incentive to help cover the initial cost of installation. The...

  20. Building Energy-Efficiency Best Practice Policies and Policy Packages

    E-Print Network [OSTI]

    Levine, Mark

    2014-01-01

    renewables- integrated green building floor space growing towhich renewable energy resources are used to provide spacerenewable energy (especially rooftop solar), and energy-efficient light bulbs, rather than for energy-efficient space-

  1. Energy Efficiency Wins Top Prize at EPA App Contest

    Broader source: Energy.gov [DOE]

    The winner of best overall app at the Environmental Protection Agency’s (EPA) Apps for the Environment is called Light Bulb Finder, a free iOS and Android application that helps a user choose the energy efficient bulbs that best match their home’s current lighting conditions.

  2. Spontaneous CP violation and CPT violation

    E-Print Network [OSTI]

    Yu Kun Qian

    2011-04-28

    At first we give a little formalism to show some features of spontaneous CP violation theory. Then we give a convincing argument show that Cronin etc's experiment is a evidence of CPT violation and spontaneous CP violation is absolutely necessary. Final we discuss some possible CPT violation mechanism.

  3. DOE Requires Westinghouse to Cease Sales of Two Light Bulb Models...

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

    action against Westinghouse Lighting Corporation, the company must cease sales of two light bulb models - medium based CFL basic model 15GLOBE652 (Westinghouse product code...

  4. Randolph EMC- Commercial and Industrial Efficient Lighting Rebate Program

    Broader source: Energy.gov [DOE]

    Commercial and industrial members who upgrade to energy-efficient light bulbs which meet Randolph EMC's standards are eligible for a prescriptive incentive payment. The cooperative will provide a...

  5. Tired of changing light bulbs AND want to save money? Still using 100 year-old technology?

    E-Print Network [OSTI]

    Gustafsson, Torgny

    Tired of changing light bulbs AND want to save money? Still using 100 year-old technology? TAKE THE COMPACT FLUORESCENT LIGHT BULB CHALLENGE! · A 23 W Compact bulb gives the same light as a 100W regular?) ·Fine print: You will also reduce Global Warming pollution. Over its lifetime, a "100W" Compact

  6. M362K First Midterm Exam. February 7, 2002 Problem 1. Light Bulbs

    E-Print Network [OSTI]

    Voloch, Felipe

    M362K First Midterm Exam. February 7, 2002 Problem 1. Light Bulbs Suppose the probability function hiking, and a 20% chance that I'll stay home and play soccer. The (conditional) probability of my getting

  7. A critical period for activity-dependent synaptic development during olfactory bulb adult neurogenesis

    E-Print Network [OSTI]

    Kelsch, Wolfgang

    New neurons integrate in large numbers into the mature olfactory bulb circuit throughout life. The factors controlling the synaptic development of adult-born neurons and their connectivity remain essentially unknown. We ...

  8. High efficiency incandescent lighting

    DOE Patents [OSTI]

    Bermel, Peter; Ilic, Ognjen; Chan, Walker R.; Musabeyoglu, Ahmet; Cukierman, Aviv Ruben; Harradon, Michael Robert; Celanovic, Ivan; Soljacic, Marin

    2014-09-02

    Incandescent lighting structure. The structure includes a thermal emitter that can, but does not have to, include a first photonic crystal on its surface to tailor thermal emission coupled to, in a high-view-factor geometry, a second photonic filter selected to reflect infrared radiation back to the emitter while passing visible light. This structure is highly efficient as compared to standard incandescent light bulbs.

  9. General Counsel's Office Issues Guidance on Inherently Governmental...

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

    Creation of New Health, Safety and Security Office DOE Launches New Smart Grid Web Portal Westinghouse Pays 50,000 Civil Penalty to Resolve Light Bulb Efficiency Violations...

  10. Time Reversal Violation

    SciTech Connect (OSTI)

    Quinn, H; /SLAC

    2009-01-27

    This talk briefly reviews three types of time-asymmetry in physics, which I classify as universal, macroscopic and microscopic. Most of the talk is focused on the latter, namely the violation of T-reversal invariance in particle physics theories. In sum tests of microscopic T-invariance, or observations of its violation, are limited by the fact that, while we can measure many processes, only in very few cases can we construct a matched pair of process and inverse process and observe it with sufficient sensitivity to make a test. In both the cases discussed here we can achieve an observable T violation making use of flavor tagging, and in the second case also using the quantum properties of an antisymmetric coherent state of two B mesons to construct a CP-tag. Both these tagging properties depend only on very general properties of the flavor and/or CP quantum numbers and so provide model independent tests for T-invariance violations. The microscopic laws of physics are very close to T-symmetric. There are small effects that give CP- and T-violating processes in three-generation-probing weak decays. Where a T-violating observable can be constructed we see the relationships between T-violation and CP-violation expected in a CPT conserving theory. These microscopic effects are unrelated to the 'arrow of time' that is defined by increasing entropy, or in the time direction defined by the expansion of our Universe.

  11. CP violation in SUSY

    E-Print Network [OSTI]

    S. Kraml

    2007-10-26

    CP violation in supersymmetric models is reviewd with focus on explicit CP violation in the MSSM. The topics covered in particular are CP-mixing in the Higgs sector and its measurement at the LHC, CP-odd observables in the gaugino sector at the ILC, EDM constraints, and the neutralino relic density.

  12. Why Did the LED Light Bulb Cross the Road?

    Office of Energy Efficiency and Renewable Energy (EERE)

    Could using humor as a marketing strategy make energy efficiency a bit more digestible? One Illinois grant recipient thinks it could be.

  13. Parity Violation in Astrophysics

    E-Print Network [OSTI]

    C. J. Horowitz

    2004-10-17

    Core collapse supernovae are gigantic explosions of massive stars that radiate 99% of their energy in neutrinos. This provides a unique opportunity for large scale parity or charge conjugation violation. Parity violation in a strong magnetic field could lead to an asymmetry in the neutrino radiation and recoil of the newly formed neutron star. Charge conjugation violation in the neutrino-nucleon interaction reduces the ratio of neutrons to protons in the neutrino driven wind above the neutron star. This is a problem for r-process nucleosynthesis in this wind. On earth, parity violation is an excellent probe of neutrons because the weak charge of a neutron is much larger than that of a proton. The Parity Radius Experiment (PREX) at Jefferson Laboratory aims to precisely measure the neutron radius of $^{208}$Pb with parity violating elastic electron scattering. This has many implications for astrophysics, including the structure of neutron stars, and for atomic parity nonconservation experiments.}

  14. Westinghouse Pays $50,000 Civil Penalty to Resolve Light Bulb Efficiency

    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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'S FUTURE. regulatorsEnergy InformationWestWestern

  15. Buying the Perfect Energy-Efficient Light Bulb in 5 Easy Steps | Department

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment|Marketing, LLCEfficiency | DepartmentEnergyof Energy Shopping

  16. DOE Investigates Possible Air Conditioner Efficiency Violations |

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i pStateDOE Federal Aviation Professional|Certify AirDepartment of

  17. LHCb CP violation

    E-Print Network [OSTI]

    Vesterinen, Mika

    2016-01-01

    The study of $CP$ violation in the beauty hadron sector is a promising approach to search for the effects of physics beyond the Standard Model. Several recent measurements in this area from the LHCb experiment are reported in these proceedings. These are based on the Run-I dataset of 3~fb$^{-1}$ of data collected at proton-proton centre of mass energies of 7 and 8~TeV.

  18. Preliminary Notice of Violation, Washington Closure Hanford,...

    Energy Savers [EERE]

    LLC - WEA-2010-02 More Documents & Publications Preliminary Notice of Violation, Brookhaven Science Associates, LLC - WEA-2013-01 Preliminary Notice of Violation, Savannah...

  19. Preliminary Notice of Violation, Westinghouse Savannah River...

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

    EA 98-09 Preliminary Notice of Violation, Westinghouse Savannah River Company - EA 98-09 September 21, 1998 Preliminary Notice of Violation issued to Westinghouse Savannah River...

  20. Preliminary Notice of Violation, National Security Technologies...

    Office of Environmental Management (EM)

    September 26, 2014 Preliminary Notice of Violation, National Security Technologies, LLC - September 26, 2014 September 26, 2014 Security Enforcement Preliminary Notice of Violation...

  1. Volley: Violation Likelihood Based State Monitoring for Datacenters Shicong Meng Arun K. Iyengar

    E-Print Network [OSTI]

    Liu, Ling

    Volley: Violation Likelihood Based State Monitoring for Datacenters Shicong Meng Arun K. Iyengar--Distributed state monitoring plays a critical role in Cloud datacenter management. One fundamental problem distributed state monitoring in Cloud datacenters. Volley achieves both efficiency and accuracy

  2. LED lamp or bulb with remote phosphor and diffuser configuration with enhanced scattering properties

    DOE Patents [OSTI]

    Tong, Tao; Le Toquin, Ronan; Keller, Bernd; Tarsa, Eric; Youmans, Mark; Lowes, Theodore; Medendorp, Jr., Nicholas W; Van De Ven, Antony; Negley, Gerald

    2014-11-11

    An LED lamp or bulb is disclosed that comprises a light source, a heat sink structure and an optical cavity. The optical cavity comprises a phosphor carrier having a conversions material and arranged over an opening to the cavity. The phosphor carrier comprises a thermally conductive transparent material and is thermally coupled to the heat sink structure. An LED based light source is mounted in the optical cavity remote to the phosphor carrier with light from the light source passing through the phosphor carrier. A diffuser dome is included that is mounted over the optical cavity, with light from the optical cavity passing through the diffuser dome. The properties of the diffuser, such as geometry, scattering properties of the scattering layer, surface roughness or smoothness, and spatial distribution of the scattering layer properties may be used to control various lamp properties such as color uniformity and light intensity distribution as a function of viewing angle.

  3. CP Violation due to Compactification

    E-Print Network [OSTI]

    C. S. Lim; Nobuhito Maru; Kenji Nishiwaki

    2010-03-28

    We address the challenging issue of how CP violation is realized in higher dimensional gauge theories without higher dimensional elementary scalar fields. In such theories interactions are basically governed by a gauge principle and therefore to get CP violating phases is a non-trivial task. It is demonstrated that CP violation is achieved as the result of compactification of extra dimensions, which is incompatible with the 4-dimensional CP transformation. As a simple example we adopt a 6-dimensional U(1) model compactified on a 2-dimensional orbifold $T^{2}/Z_{4}$. We argue that the 4-dimensional CP transformation is related to the complex structure of the extra space and show how the $Z_{4}$ orbifolding leads to CP violation. We confirm by explicit calculation of the interaction vertices that CP violating phases remain even after the re-phasing of relevant fields. For completeness, we derive a re-phasing invariant CP violating quantity, following a similar argument in the Kobayashi-Maskawa model which led to the Jarlskog parameter. As an example of a CP violating observable we briefly comment on the electric dipole moment of the electron.

  4. Holographic superconductors with hyperscaling violation

    E-Print Network [OSTI]

    ZhongYing Fan

    2013-08-18

    We investigate holographic superconductors in asympototically geometries with hyperscaling violation. The mass of the scalar field decouples from the UV dimension of the dual scalar operator and can be chosen as negative as we want, without disturbing the Breitenlohner-Freedman bound. We first numerically find that the scalar condenses below a critical temperature and a gap opens in the real part of the conductivity, indicating the onset of superconductivity. We further analytically explore the effects of the hyperscaling violation on the superconducting transition temperature. We find that the critical temperature increases with the increasing of hyperscaling violation.

  5. CP Violation Studies at Tevatron

    E-Print Network [OSTI]

    E. Ben-Haim

    2007-04-20

    We present an overview of a few recent results related to CP-violation from the Tevatron. First, we discuss a measurement of the dimuon charge asymmetry from D{\\O}that extracts the CP-violation parameter of $\\Bo$ mixing and decay. This is followed by the CDF measurement of the CP-violating asymmetry in $\\bdkpi$ decays. Finally we give the CDF result on the ratio $R = \\frac{BR(B \\to D^0 K)}{BR(B \\to D^0 \\pi)}$

  6. Gravity from Lorentz Symmetry Violation

    SciTech Connect (OSTI)

    Potting, Robertus [CENTRA, FCT, University of the Algarve, 8005-139 Faro (Portugal); Physics Department, FCT, University of the Algarve, 8005-139 Faro (Portugal)

    2006-06-19

    In general relativity, the masslessness of gravitons can be traced to symmetry under diffeomorphisms. In this talk, we consider another possibility, whereby the masslessness arises from spontaneous violation of Lorentz symmetry.

  7. NNSA issues Preliminary Notice of Violation to National Security...

    Energy Savers [EERE]

    NNSA issues Preliminary Notice of Violation to National Security Technologies, LLC, for Nuclear Safety Violations, Fact Sheet NNSA issues Preliminary Notice of Violation to...

  8. Visualization of nitric oxide production in the mouse main olfactory bulb by a cell-trappable copper(II) fluorescent probe

    E-Print Network [OSTI]

    McQuade, Lindsey E.

    We report the visualization of NO production using fluorescence in tissue slices of the mouse main olfactory bulb. This discovery was possible through the use of a novel, cell-trappable probe for intracellular nitric oxide ...

  9. How many principles does it take to change a light bulb ... into a laser?

    E-Print Network [OSTI]

    Wiseman, Howard M

    2015-01-01

    Quantum optics did not, and could not, flourish without the laser. The present paper is not about the principles of laser construction, still less a history of how the laser was invented. Rather, it addresses the question: what are the fundamental features that distinguish laser light from thermal light? The answers do, however, show, in a quantitative way --- involving, indeed, very large dimensionless quantities (up to $\\sim 10^{51}$) --- that a laser must be constructed very differently from a light bulb. Some of this paper is based on material I use to introduce advanced undergraduate students to quantum optics. The theory presented is mostly quite simple, and yet it is not to be found in any text-books on quantum optics to my knowledge. The obvious answer, ``laser light is coherent'', is, I argue, so vague that it must be put aside at the start, albeit to revisit later. A specific version, ``laser light is in a coherent state'', is simply wrong in this context, since both laser light and thermal light ca...

  10. DOE Requires Westinghouse to Cease Sales of Two Light Bulb Models and

    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 Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department ofRefrigeratorsDepartmentEP9425Violating Minimum

  11. CP violation in charm decays

    E-Print Network [OSTI]

    Alberto Corrêa dos Reis; on behalf of the LHCb collaboration

    2013-08-06

    Results on CP violation searches in charm decays performed by the LHCb experiment are reviewed. These include an update of the measurement of the difference in time-integrated {\\em CP} asymmetry between $D^0\\to K^-K^+$ and $D^0\\to \\pi^-\\pi^+$ using $D^0$ from prompt $D^{*+}, a measurement of the same observable using an independent sample of $D^0$ from semileptonic B decays, and CP violation searches performed on charged $D$ mesons. All results have been released since FPCP 2012.

  12. Preliminary Notice of Violation, Argonne National Laboratory...

    Energy Savers [EERE]

    Preliminary Notice of Violation, Argonne National Laboratory-West - EA-2001-01 Preliminary Notice of Violation, Argonne National Laboratory-West - EA-2001-01 February 28, 2001...

  13. CCIT Investigation of and Response to Violations

    E-Print Network [OSTI]

    CCIT Investigation of and Response to Violations Responsible Administrative Unit: CCIT Policy 1 of 6 1.0 BACKGROUND As the operational administrator of the campus network and central academic CCIT staff will proceed with respect to investigating and resolving the violation or alleged violation

  14. CP violation in top-quark physics

    E-Print Network [OSTI]

    German Valencia

    2010-07-27

    In this talk I review how to search for CP violation in top-quark pair production and decay using T-odd correlations. I discuss two examples which illustrate many of the relevant features: CP violation in a heavy neutral Higgs boson; and CP violating anomalous top-quark couplings. I present some numerical results for the LHC and some for the Tevatron.

  15. Atomic CP-violating polarizability

    E-Print Network [OSTI]

    Ravaine, B; Derevianko, A; Ravaine, Boris; Derevianko, Andrei

    2005-01-01

    Searches for CP violating effects in atoms and molecules provide important constrains on competing extensions to the standard model of elementary particles. In particular, CP violation in an atom leads to the CP-odd (T,P-odd) polarizability $\\beta^\\mathrm{CP}$: a magnetic moment $\\mu^\\mathrm{CP}$ is induced by an electric field $\\mathcal{E}_0$ applied to an atom, $\\mu^\\mathrm{CP} = \\beta^\\mathrm{CP} \\mathcal{E}_0 $. We estimate the CP-violating polarizability for rare-gas (diamagnetic) atoms He through Rn. We relate betaCP to the permanent electric dipole moment (EDM) of the electron and to the scalar constant of the CP-odd electron-nucleus interaction. The analysis is carried out using the third-order perturbation theory and the Dirac-Hartree-Fock formalism. We find that, as a function of nuclear charge Z, betaCP scales steeply as Z^5 R(Z), where slowly-varying R(Z) is a relativistic enhancement factor. Finally, we evaluate a feasibility of setting a limit on electron EDM by measuring CP-violating magnetizat...

  16. Velocity requirements for causality violation

    E-Print Network [OSTI]

    Giovanni Modanese

    2015-01-18

    We re-examine the "Regge-Tolman paradox" with reference to some recent experimental results. It is straightforward to find a formula for the velocity v of the moving system required to produce causality violation. This formula typically yields a velocity very close to the speed of light (for instance, v/c > 0.97 for X-shaped microwaves), which raises some doubts about the real physical observability of the violations. We then compute the velocity requirement introducing a delay between the reception of the primary signal and the emission of the secondary. It turns out that in principle for any delay it is possible to find moving observers able to produce active causal violation. This is mathematically due to the singularity of the Lorentz transformations for beta to 1. For a realistic delay due to the propagation of a luminal precursor, we find that causality violations in the reported experiments are still more unlikely (v/c > 0.989), and even in the hypothesis that the superluminal propagation velocity goes to infinity, the velocity requirement is bounded by v/c > 0.62. We also prove that if two macroscopic bodies exchange energy and momentum through superluminal signals, then the swap of signal source and target is incompatible with the Lorentz transformations; therefore it is not possible to distinguish between source and target, even with reference to a definite reference frame.

  17. How many principles does it take to change a light bulb ... into a laser?

    E-Print Network [OSTI]

    Howard M. Wiseman

    2015-10-16

    Quantum optics did not, and could not, flourish without the laser. The present paper is not about the principles of laser construction, still less a history of how the laser was invented. Rather, it addresses the question: what are the fundamental features that distinguish laser light from thermal light? The answers do, however, show, in a quantitative way --- involving, indeed, very large dimensionless quantities (up to $\\sim 10^{51}$) --- that a laser must be constructed very differently from a light bulb. Some of this paper is based on material I use to introduce advanced undergraduate students to quantum optics. The theory presented is mostly quite simple, and yet it is not to be found in any text-books on quantum optics to my knowledge. The obvious answer, ``laser light is coherent'', is, I argue, so vague that it must be put aside at the start, albeit to revisit later. A specific version, ``laser light is in a coherent state'', is simply wrong in this context, since both laser light and thermal light can be described by a coherent state, though necessarily one that varies stochastically in space. Nevertheless, this perspective does reveal a profound difference between them, in that this description (a stochastically varying coherent state) is the only simple description of a laser beam. Interestingly, this implies the (perhaps new) prediction that narrowly filtered laser beams are indistinguishable from similarly filtered thermal beams. I hope that other educators find this material useful; it may contain surprises even for researchers who have been in the field longer than I have. But I cannot finish the abstract without answering the titular question: four --- high directionality, monochromaticity, high brightness, and stable intensity.

  18. Lorentz violating kinematics: Threshold theorems

    E-Print Network [OSTI]

    Baccetti, Valentina; Visser, Matt

    2011-01-01

    Recent tentative experimental indications, and the subsequent theoretical speculations, regarding possible violations of Lorentz invariance have attracted a vast amount of attention. An important technical issue that considerably complicates detailed calculations in any such scenario, is that once one violates Lorentz invariance the analysis of thresholds in both scattering and decay processes becomes extremely subtle, with many new and naively unexpected effects. In the current article we develop several extremely general threshold theorems that depend only on the existence of some energy momentum relation E(p), eschewing even assumptions of isotropy or monotonicity. We shall argue that there are physically interesting situations where such a level of generality is called for, and that existing (partial) results in the literature make unnecessary technical assumptions. Even in this most general of settings, we show that at threshold all final state particles move with the same 3-velocity, while initial state...

  19. High Efficiency Integrated Package

    SciTech Connect (OSTI)

    Ibbetson, James

    2013-09-15

    Solid-state lighting based on LEDs has emerged as a superior alternative to inefficient conventional lighting, particularly incandescent. LED lighting can lead to 80 percent energy savings; can last 50,000 hours – 2-50 times longer than most bulbs; and contains no toxic lead or mercury. However, to enable mass adoption, particularly at the consumer level, the cost of LED luminaires must be reduced by an order of magnitude while achieving superior efficiency, light quality and lifetime. To become viable, energy-efficient replacement solutions must deliver system efficacies of ? 100 lumens per watt (LPW) with excellent color rendering (CRI > 85) at a cost that enables payback cycles of two years or less for commercial applications. This development will enable significant site energy savings as it targets commercial and retail lighting applications that are most sensitive to the lifetime operating costs with their extended operating hours per day. If costs are reduced substantially, dramatic energy savings can be realized by replacing incandescent lighting in the residential market as well. In light of these challenges, Cree proposed to develop a multi-chip integrated LED package with an output of > 1000 lumens of warm white light operating at an efficacy of at least 128 LPW with a CRI > 85. This product will serve as the light engine for replacement lamps and luminaires. At the end of the proposed program, this integrated package was to be used in a proof-of-concept lamp prototype to demonstrate the component’s viability in a common form factor. During this project Cree SBTC developed an efficient, compact warm-white LED package with an integrated remote color down-converter. Via a combination of intensive optical, electrical, and thermal optimization, a package design was obtained that met nearly all project goals. This package emitted 1295 lm under instant-on, room-temperature testing conditions, with an efficacy of 128.4 lm/W at a color temperature of ~2873K and 83 CRI. As such, the package’s performance exceeds DOE’s warm-white phosphor LED efficacy target for 2013. At the end of the program, we assembled an A19 sized demonstration bulb housing the integrated package which met Energy Star intensity variation requirements. With further development to reduce overall component cost, we anticipate that an integrated remote converter package such as developed during this program will find application in compact, high-efficacy LED-based lamps, particularly those requiring omnidirectional emission.

  20. Labeling energy cost on light bulbs lowers implicit discount rates Jihoon Min a

    E-Print Network [OSTI]

    Michalek, Jeremy J.

    consumption. A transition to alternative energy-efficient technologies could reduce this energy consumption of five, lowering barriers to adoption of energy efficient alternatives with higher up-front costs., 1980), uncertainty in the future price of electricity or other fuels, low priority of energy issues

  1. Preliminary Notice of Violation, Westinghouse Savannah River...

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

    violations of facility safety basis requirements, and As Low As Reasonably Achievable (ALARA) deficiencies that contributed to unplanned worker uptakes and the spread of...

  2. Violation of Bell's inequality in fluid mechanics

    E-Print Network [OSTI]

    Robert Brady; Ross Anderson

    2013-05-28

    We show that a classical fluid mechanical system can violate Bell's inequality because the fluid motion is correlated over large distances.

  3. Preliminary Notice of Violation, International Technology Corporation...

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

    Technology Corporation - EA-1999-01 Preliminary Notice of Violation, International Technology Corporation - EA-1999-01 February 26, 1999 Issued to International Technology...

  4. Preliminary Notice of Violation, Brookhaven Science Associates...

    Office of Environmental Management (EM)

    Brookhaven Science Associates, LLC - WEA-2013-01 Preliminary Notice of Violation, Brookhaven Science Associates, LLC - WEA-2013-01 August 29, 2013 Issued to Brookhaven Science...

  5. Higgs CP Violation from Vectorlike Quarks

    E-Print Network [OSTI]

    Chen, Chien-Yi; Zhang, Yue

    2015-01-01

    We explore CP violating aspects in the Higgs sector of models where new vectorlike quarks carry Yukawa couplings mainly to the third generation quarks of the Standard Model. We point out that in the simplest model, Higgs CP violating interactions only exist in the hWW channel. At low energy, we find that rare B decays can place similarly strong constraints as those from electric dipole moments on the source of CP violation. These observations offer a new handle to discriminate from other Higgs CP violating scenarios such as scalar sector extensions of the Standard Model, and imply an interesting future interplay among limits from different experiments.

  6. Preliminary Notice of Violation, Lawrence Livermore National...

    Office of Environmental Management (EM)

    Lawrence Livermore National Security, LLC - September 25, 2014 Preliminary Notice of Violation, Lawrence Livermore National Security, LLC - September 25, 2014 September 25, 2014...

  7. CP Violation Results from D0

    E-Print Network [OSTI]

    J. Ellison

    2008-10-06

    We present results on CP violation from approximately 2.8 fb^{-1} of data collected by the D0 Experiment at the Fermilab Tevatron. The results presented are: (i) an improved measurement of the B_s^0 CP-violating phase from a flavor-tagged analysis of B_s^0 --> J/\\psi \\phi decays; (ii) a search for direct CP violation in B^{+-} --> J/\\psi K^{+-} (\\pi^{+-}) decays from a measurement of the charge asymmetry A_{CP}(B^{+-} --> J/\\psi K^{+-}); and (iii) a search for indirect CP violation from searches for anomalous charge asymmetries in semileptonic B_s^0 decays.

  8. B-B Mixing and CP Violation Observation of Mixing and CP Violation

    E-Print Network [OSTI]

    Murayama, Hitoshi

    15 B-B Mixing and CP Violation Observation of Mixing and CP Violation Just as for K0 and K 0-strange B0 d = bd and the strange B0 s = bs. The mixing does not require CP violation, but depends only

  9. Massive photons and Lorentz violation

    E-Print Network [OSTI]

    Mauro Cambiaso; Ralf Lehnert; Robertus Potting

    2012-01-14

    All quadratic translation- and gauge-invariant photon operators for Lorentz breakdown are included into the Stueckelberg Lagrangian for massive photons in a generalized \\xi-gauge. The corresponding dispersion relation and tree-level propagator are determined exactly, and some leading-order results are derived. The question of how to include such Lorentz-violating effects into a perturbative quantum-field expansion is addressed. Applications of these results within Lorentz-breaking quantum field theories include the regularization of infrared divergences as well as the free propagation of massive vector bosons.

  10. DOE Opens Investigation into Alleged Lighting Efficiency Violations |

    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 Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department ofRefrigeratorsDepartment of Energy Investigation into

  11. Problem 7-3: The air enters with a dry-bulb temperature of 50 o F and, at 50% relative humidity, with a wet-

    E-Print Network [OSTI]

    of the power-plant Rankine cycle. The actual process evaporates enough water to increase the humidity ratio, with a wet- bulb temperature of 42 o F, according to the Psychrometric Chart (page 821). The main evaporative% relative humidity. This process would evaporate enough water to increase the humidity ratio from 0

  12. Preliminary Notice of Violation , Rocky Flats Environmental Technology...

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

    Violation , Rocky Flats Environmental Technology Site - EA-96-05 Preliminary Notice of Violation , Rocky Flats Environmental Technology Site - EA-96-05 October 7, 1996 Preliminary...

  13. NNSA issues Preliminary Notice of Violation to National Security...

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

    NNSA issues Preliminary Notice of Violation to National Security Technologies, LLC, for Nuclear Safety Violations On August 22, 2011, the National Nuclear Security Administration...

  14. HERBVI - a program for simulation of baryon- and lepton- number violating processes

    E-Print Network [OSTI]

    M. J. Gibbs; B. R. Webber

    1995-04-05

    We describe a Monte Carlo event generator for the simulation of baryon- and lepton-number violating processes at supercolliders. The package, {\\HERBVI}, is designed as a hard-process generator interfacing to the general hadronic event simulation program {\\HW}. In view of the very high multiplicity of gauge bosons expected in such processes, particular attention is paid to the efficient generation of multiparticle phase space. The program also takes account of the expected colour structure of baryon-number violating vertices, which has important implications for the hadronization of the final state.

  15. Direct CP violation in B decays

    E-Print Network [OSTI]

    M. Kreps

    2008-07-01

    We review recent experimental results on direct CP violation. The hot topic is a measurement in charmless two-body decays of B0, B+. In connection to this the first analogous measurements in Bs0 and Lambda_b0 decays are now available. Furthermore first evidence for direct CP violation in B+ decays is obtained from Dalitz plot analyzes of the K+pi-pi+ final state at B-factories. The last group of discussed results probes the b -> c\\bar{c}d transition in attempt to resolve the discrepancy between Belle and BABAR experiments in CP violation in the B0 -> D+D- decays.

  16. Nuclear Parity Violation from Lattice QCD

    E-Print Network [OSTI]

    Kurth, Thorsten; Rinaldi, Enrico; Vranas, Pavlos; Nicholson, Amy; Strother, Mark; Walker-Loud, Andre

    2015-01-01

    The electroweak interaction at the level of quarks and gluons are well understood from precision measurements in high energy collider experiments. Relating these fundamental parameters to Hadronic Parity Violation in nuclei however remains an outstanding theoretical challenge. One of the most interesting observables in this respect is the parity violating hadronic neutral current: it is hard to measure in collider experiments and is thus the least constrained observable of the Standard Model. Precision measurements of parity violating transitions in nuclei can help to improve these constraints. In these systems however, the weak interaction is masked by effects of the seven orders of magnitude stronger non-perturbative strong interaction. Therefore, in order to relate experimental measurements of the parity violating pion-nucleon couplings to the fundamental Lagrangian of the SM, these non-perturbative effects have to be well understood. In this paper, we are going to present a Lattice QCD approach for comput...

  17. New bounds on isotropic Lorentz violation

    SciTech Connect (OSTI)

    Chris Carone; Marc Sher; Marc Vanderhaeghen

    2006-09-19

    Violations of Lorentz invariance that appear via operators of dimension four or less are completely parameterized in the Standard Model Extension (SME). In the pure photonic sector of the SME, there are nineteen dimensionless, Lorentz-violating parameters. Eighteen of these have experimental upper bounds ranging between 10{sup -11} and 10{sup -32}; the remaining parameter, ktr, is isotropic and has a much weaker bound of order 10{sup -4}. In this Brief Report, we point out that ktr gives a significant contribution to the anomalous magnetic moment of the electron and find a new upper bound of order 10{sup -8}. With reasonable assumptions, we further show that this bound may be improved to 10{sup -14} by considering the renormalization of other Lorentz-violating parameters that are more tightly constrained. Using similar renormalization arguments, we also estimate bounds on Lorentz violating parameters in the pure gluonic sector of QCD.

  18. CP-violating CFT and trace anomaly

    E-Print Network [OSTI]

    Yu Nakayama

    2012-01-26

    It is logically possible that the trace anomaly in four dimension includes the Hirzebruch-Pontryagin density in CP violating theories. Although the term vanishes at free conformal fixed points, we realize such a possibility in the holographic renormalization group and show that it is indeed possible. The Hirzebruch-Pontryagin term in the trace anomaly may serve as a barometer to understand how much CP is violated in conformal field theories.

  19. Nuclear Parity Violation from Lattice QCD

    E-Print Network [OSTI]

    Thorsten Kurth; Evan Berkowitz; Enrico Rinaldi; Pavlos Vranas; Amy Nicholson; Mark Strother; Andre Walker-Loud

    2015-11-06

    The electroweak interaction at the level of quarks and gluons are well understood from precision measurements in high energy collider experiments. Relating these fundamental parameters to Hadronic Parity Violation in nuclei however remains an outstanding theoretical challenge. One of the most interesting observables in this respect is the parity violating hadronic neutral current: it is hard to measure in collider experiments and is thus the least constrained observable of the Standard Model. Precision measurements of parity violating transitions in nuclei can help to improve these constraints. In these systems however, the weak interaction is masked by effects of the seven orders of magnitude stronger non-perturbative strong interaction. Therefore, in order to relate experimental measurements of the parity violating pion-nucleon couplings to the fundamental Lagrangian of the SM, these non-perturbative effects have to be well understood. In this paper, we are going to present a Lattice QCD approach for computing the $\\Delta I{=}2$ parity violating matrix element in proton proton scattering. This process does not involve disconnected diagrams in the isospin symmetric limit and is thus a perfect testbed for studying the feasibility of the more involved calculation of the parity violating pion-nucleon coupling.

  20. Probing lepton number violation on three frontiers

    SciTech Connect (OSTI)

    Deppisch, Frank F. [Department of Physics and Astronomy, University College London (United Kingdom)

    2013-12-30

    Neutrinoless double beta decay constitutes the main probe for lepton number violation at low energies, motivated by the expected Majorana nature of the light but massive neutrinos. On the other hand, the theoretical interpretation of the (non-)observation of this process is not straightforward as the Majorana neutrinos can destructively interfere in their contribution and many other New Physics mechanisms can additionally mediate the process. We here highlight the potential of combining neutrinoless double beta decay with searches for Tritium decay, cosmological observations and LHC physics to improve the quantitative insight into the neutrino properties and to unravel potential sources of lepton number violation.

  1. Laboratory Bounds on Electron Lorentz Violation

    E-Print Network [OSTI]

    Brett Altschul

    2010-05-17

    Violations of Lorentz boost symmetry in the electron and photon sectors can be constrained by studying several different high-energy phenomenon. Although they may not lead to the strongest bounds numerically, measurements made in terrestrial laboratories produce the most reliable results. Laboratory bounds can be based on observations of synchrotron radiation, as well as the observed absences of vacuum Cerenkov radiation. Using measurements of synchrotron energy losses at LEP and the survival of TeV photons, we place new bounds on the three electron Lorentz violation coefficients c_(TJ), at the 3 x 10^(-13) to 6 x 10^(-15) levels.

  2. DOE Cites Safety and Ecology Corp. for Violating Nuclear Safety...

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

    DOE Cites Safety and Ecology Corp. for Violating Nuclear Safety Rules DOE Cites Safety and Ecology Corp. for Violating Nuclear Safety Rules June 14, 2005 - 4:53pm Addthis...

  3. Lepton flavor violation in Higgs boson decays under the rare...

    Office of Scientific and Technical Information (OSTI)

    Lepton flavor violation in Higgs boson decays under the rare tau decay results Citation Details In-Document Search Title: Lepton flavor violation in Higgs boson decays under the...

  4. Preliminary Notice of Violation, Los Alamos National Security...

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

    Security, LLC - WEA-2010-04 Preliminary Notice of Violation, Los Alamos National Security, LLC - WEA-2010-04 October 18, 2010 Preliminary Notice of Violation issued to Los Alamos...

  5. Isotone Optimization in R: Pool-Adjacent-Violators Algorithm (PAVA) and Active Set Methods

    E-Print Network [OSTI]

    Leeuw, Jan de; Hornik, Kurt; Mair, Patrick

    2009-01-01

    Optimization in R: Pool-Adjacent-Violators Algorithm (PAVA)discuss a generalized version of the Pool-Adjacent-Violators

  6. Isotone Optimization in R: Pool-Adjacent-Violators Algorithm (PAVA) and Active Set Methods

    E-Print Network [OSTI]

    Jan de Leeuw; Kurt Hornik; Patrick Mair

    2011-01-01

    Optimization in R: Pool-Adjacent-Violators Algorithm (PAVA)discuss a generalized version of the Pool-Adjacent-Violators

  7. Averaged null energy condition violation in a conformally flat spacetime

    SciTech Connect (OSTI)

    Urban, Douglas; Olum, Ken D.

    2010-01-15

    We show that the averaged null energy condition can be violated by a conformally coupled scalar field in a conformally flat spacetime in 3+1 dimensions. The violation is dependent on the quantum state and can be made as large as desired. It does not arise from the presence of anomalies, although anomalous violations are also possible. Since all geodesics in conformally flat spacetimes are achronal, the achronal averaged null energy condition is likewise violated.

  8. Atomic CP-violating polarizability Boris Ravaine,1

    E-Print Network [OSTI]

    Titov, Anatoly

    Atomic CP-violating polarizability Boris Ravaine,1 M. G. Kozlov,2, * and Andrei Derevianko1, 1, Gatchina 188300, Russia Received 22 March 2005; published 1 July 2005 Searches for CP-violating effects of elementary particles. In particular, CP violation in an atom leads to the CP-odd T,P-odd polarizability CP

  9. Direct CP violation in charm at Belle

    E-Print Network [OSTI]

    B. R. Ko; for the Belle Collaboration

    2012-12-10

    Using the full data sample collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, we have searched for CP violation of charmed mesons in $D^+\\rightarrow K^0_S\\pi^+$ and $D^0\\rightarrow h^+h^-$ decays, where $h$ denotes $K$ and $\\pi$. We observe evidence for CP violation in $D^+\\rightarrow K^0_S\\pi^+$ decay with 3.2 standard deviations away from zero, $(-0.363\\pm0.094\\pm0.067)%$, while the asymmetry is consistent with the expected CP violation due to the neutral kaon in the final state. No evidence for CP violation in $D^0\\rightarrow h^+h^-$ is observed with $A^{KK}_{CP}=(-0.32\\pm0.21\\pm0.09)%$ and $A^{\\pi\\pi}_{CP}=(+0.55\\pm0.36\\pm0.09)%$. The CP asymmetry difference between $D^0\\rightarrow K^+K^-$ and $D^0\\rightarrow\\pi^+\\pi^-$ decays is also measured with $\\Delta A^{hh}_{CP}=(-0.87\\pm0.41\\pm0.06)%$, which is 2.1 standard deviations away from zero and supports recent LHCb and CDF measurements.

  10. Minimal flavor violation, seesaw mechanism, and R parity

    SciTech Connect (OSTI)

    Nikolidakis, Emanuel; Smith, Christopher

    2008-01-01

    The minimal flavor violation hypothesis (MFV) is extended to the R-parity violating minimal supersymmetric standard model, supplemented with a simple seesaw mechanism. The requirement of MFV is shown to suppress lepton- and baryon-number violating couplings sufficiently to pass all experimental bounds, in particular, those for proton decay, and is thus a viable alternative to R parity. The phenomenological consequences for flavor-changing neutral currents, lepton flavor violation, and colliders are briefly discussed. Typically, MFV predicts sizable baryon-number violation in some characteristic channels, like single stop resonant production.

  11. Water Efficiency

    Energy Savers [EERE]

    Water Efficiency Hosted by: FEDERAL UTILITY PARTNERSHIP WORKING GROUP SEMINAR November 5-6, 2014 Cape Canaveral, Florida WATER EFFICIENCY Federal Utility Partnership Working Group...

  12. Supersymmetric Dark Matter and Lepton Flavor Violation

    E-Print Network [OSTI]

    Soleimani, Ali

    2010-05-07

    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 1.5 Notation and Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 1.6 Flavor violation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 1.6.1 Quark sector flavor....3) LHiggs = |Dµ?|2 +µ2?†???(?†?)2, (1.4) and LYukawa = summationdisplay generations bracketleftBig ?fe¯L·?eR ?fd ¯Q·?dR ?fuepsilon1ab ¯Qa?†buR + h.c. bracketrightBig . (1.5) Here, Gµ?A , Wµ?A , Bµ? are the color, weak isospin and hypercharge field tensors...

  13. Neutrinoless Double Beta Decay and CP Violation

    E-Print Network [OSTI]

    Patrick J. O'Donnell; Utpal Sarkar

    1993-05-27

    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).

  14. CP Violation in Other Bs Decays

    E-Print Network [OSTI]

    L. Zhang; for the LHCb Collaboration

    2012-08-24

    The recent experimental results of CP violation in Bs decays other than in the J/psi phi final state are discussed. Included are the resonant components and $\\phi_s$ determination in Bs -> J/psi pi+ pi-, CP asymmetries in Bs -> h+ h'- decays, and the Bs effective lifetimes in the CP-even state K+ K- and the CP-odd state J/psi f0(980).

  15. Flavored dark matter beyond minimal flavor violation

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

    Agrawal, Prateek; Blanke, Monika; Gemmler, Katrin

    2014-10-13

    We study the interplay of flavor and dark matter phenomenology for models of flavored dark matter interacting with quarks. We allow an arbitrary flavor structure in the coupling of dark matter with quarks. This coupling is assumed to be the only new source of violation of the Standard Model flavor symmetry extended by a U(3)x associated with the dark matter. We call this ansatz Dark Minimal Flavor Violation (DMFV) and highlight its various implications, including an unbroken discrete symmetry that can stabilize the dark matter. As an illustration we study a Dirac fermionic dark matter ? which transforms asmore »triplet under U(3)x , and is a singlet under the Standard Model. The dark matter couples to right-handed down-type quarks via a colored scalar mediator ? with a coupling ?. We identify a number of “flavor-safe” scenarios for the structure of ? which are beyond Minimal Flavor Violation. For dark matter and collider phenomenology we focus on the well-motivated case of b-flavored dark matter. The combined flavor and dark matter constraints on the parameter space of ? turn out to be interesting intersections of the individual ones. LHC constraints on simplified models of squarks and sbottoms can be adapted to our case, and monojet searches can be relevant if the spectrum is compressed.« less

  16. Charm mixing and CP violation at LHCb

    E-Print Network [OSTI]

    Gersabeck, Evelina Mihova

    2015-01-01

    LHCb has collected the world's largest sample of charmed hadrons. This sample is used to search for direct CP violation in the multibody prompt charm decays $D^0 -> \\pi^-\\pi^+\\pi^0$. The search is employing an unbinned model independent method known as the energy test. Using the data collected by LHCb at centre-of-mass energy of 8 TeV, the world's best sensitivity to CP violation in this decay is achieved. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of $(2.6 \\pm 0.5)\\%$. New measurements of indirect CP violation in muon tagged $D^0$ decays to two-body CP even final states are presented. The time dependent CP asymmetries in the decay rates of the singly Cabibbo-suppressed decays $D^0->KK$ and $D^0->\\pi\\pi$ decays using the full LHCb run 1 data set are determined to be $A_{\\Gamma} (K^-K^+) = (-0.134 \\pm 0.077 ^{+0.026}_{-0.034})\\% ; A_{\\Gamma} (\\pi^-\\pi^+) = (-0.092 \\pm 0.145 ^{+0.025}_{-0.033})\\%$, and are compatible with the hypothesis of no indirect CPV and with ...

  17. Energy Efficiency Adult Tracking Report - Final

    SciTech Connect (OSTI)

    Gibson-Grant, Amy

    2014-09-30

    Postwave tracking study for the Energy Efficiency Adult Campaign This study serves as measure of key metrics among the campaign’s target audience, homeowners age 25+. Key measures include: Awareness of messages relating to the broad issue; Recognition of the PSAs; Relevant attitudes, including interest, ease of taking energy efficient steps, and likelihood to act; Relevant knowledge, including knowledge of light bulb alternatives and energy efficient options; and Relevant behaviors, including specific energy-saving behaviors mentioned within the PSAs. Wave 1: May 27 – June 7, 2011 Wave 2: May 29 – June 8, 2012 Wave 3: May 29 – June 19, 2014 General market sample of adults 25+ who own their homes W1 sample: n = 704; W2: n=701; W3: n=806 Online Survey Panel Methodology Study was fielded by Lightspeed Research among their survey panel. Sample is US Census representative of US homeowners by race/ethnicity, income, age, region, and family status. At least 30% of respondents were required to have not updated major appliances in their home in the past 5 years (dishwasher, stove, refrigerator, washer, or dryer).

  18. CP Violation in B Meson Decays: Experimental Results

    SciTech Connect (OSTI)

    Lanceri, Livio; /Trieste U. /INFN, Trieste

    2005-08-30

    CP violation is intimately connected with the puzzle of matter-antimatter asymmetry and baryogenesis. In the Standard Model of particle physics, the observed CP violation phenomena are accounted for by the Cabibbo-Kobayashi-Maskawa mechanism involving a phase in the quark mixing matrix. This paper is devoted to a review of the experimental status of CP violation in the decays of B mesons.

  19. Fact Sheet Preliminary Notice of Violation: Classified Information...

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

    National Security, LLC (LANS) for violations of Department of Energy (DOE) classified information security program requirements. LANS is the management and operating contractor...

  20. Final Notice of Violation issued to Los Alamos National Security...

    Energy Savers [EERE]

    should not be unduly confiscatory, they should nonetheless be commensurate with the gravity of the violations at issue. In assessing penalties, NNSA considered the nature and...

  1. Preliminary Notice of Violation, Los Alamos National Laboratory...

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

    Control and Authorization Basis Violations at the Los Alamos National Laboratory, (EA-2000-13) On January 19, 2001, the National Nuclear Security Administration issued a...

  2. Preliminary Notice of Violation, Pacific Northwest National Laboratory...

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

    in responding to a high level alarm for a criticality safe slab tank in a laboratory vacuum system at the Pacific Northwest National Laboratory. Preliminary Notice of Violation,...

  3. DOE Cites University of Chicago for Nuclear Safety Violations...

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

    taken by the director and the new management team. The Price-Anderson Amendments Act of 1988 authorizes DOE to undertake regulatory actions against contractors for violations of...

  4. Fact Sheet, Preliminary Notice of Violation: Four Hazardous Energy...

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

    located in Los Alamos, New Mexico. Fact Sheet, Preliminary Notice of Violation: Four Hazardous Energy Control Events at LANL More Documents & Publications Preliminary Notice of...

  5. Preliminary Notice of Violation, Lockheed Martin Idaho Technologies...

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

    11 Preliminary Notice of Violation, Lockheed Martin Idaho Technologies Company - EA-98-11 September 21, 1998 Issued to Lockheed Martin Idaho Technologies Company, related to...

  6. Preliminary Notice of Violation, Lockheed Martin Energy Research...

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

    Research Corporation - EA-98-13 Preliminary Notice of Violation, Lockheed Martin Energy Research Corporation - EA-98-13 November 16, 1998 Issued to Lockheed Martin Energy Research...

  7. Preliminary Notice of Violation, Lockheed Martin Idaho Technologies...

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

    June 4, 1998 Preliminary Notice of Violation issued to Lockheed Martin Idaho Technologies Company, related to a Radioactive Material Release at the Idaho National Engineering and...

  8. Domestic Violations in Spanish Cinema: Reframing Gendered Violence Onscreen

    E-Print Network [OSTI]

    Saenz, Noelia

    2009-01-01

    Feminist Discourse and Spanish Cinema: Sight Unseen (Oxford:DVD. Marsha Kinder. Blood Cinema: The Reconstruction ofViolations in Spanish Cinema: Reframing Gendered Violence

  9. Preliminary Notice of Violation, Battelle Energy Alliance, LLC...

    Energy Savers [EERE]

    of directives related to the introduction of classified information into unapproved information systems at DOE's Idaho National Laboratory. Preliminary Notice of Violation,...

  10. T Violation and CPT Tests in Neutral-Meson Systems

    E-Print Network [OSTI]

    Klaus R. Schubert

    2015-01-05

    The review covers transitions between M0 and M0bar in all four systems M0 = K0, D0, B0 and Bs. These systems are ideal laboratories for studying the discrete symmetries T and CPT. The properties of time reversal T are discussed in classical and quantum mechanics. T violation in K0 K0bar transitions has been observed in 1970 independent of assuming CPT symmetry by using the Bell-steinberger unitarity relation. Improvements of this observation are reviewed including the latest results in 2013. They show with high significance that CP violation in K0 K0bar transitions is only T violation without any CPT violation. Transitions in the other three systems do not show CP violation so far and therefore neither T nor CPT violation. The large observed CP violation in B0 -> J/psi K0 decays is presented to be compatible with only T and no CPT violation, the same for the very small but significant CP violation in decays K0 -> pi pi with isospin 2.

  11. Preliminary Notice of Violation, Babcock & Wilcox Technical Services...

    Office of Environmental Management (EM)

    safety and health program requirements relating to events involving worker exposure to lithium hydride and an unintentional firearm discharge. Preliminary Notice of Violation,...

  12. Can CP violation be observed in heavy-ion collisions?

    SciTech Connect (OSTI)

    Khriplovich, I. B. Rudenko, A. S.

    2012-09-15

    We demonstrate that, at least at present, there is no convincing way to detect CP violation in heavy-ion collisions.

  13. Former Oak Ridge Bechtel Jacobs Employee Charged with Violating...

    Energy Savers [EERE]

    Atomic Energy Act Former Oak Ridge Bechtel Jacobs Employee Charged with Violating Atomic Energy Act Department of Justice press release announcing that a federal grand jury in the...

  14. Preliminary Notice of Violation, Pacific Data Electric, Inc....

    Office of Environmental Management (EM)

    Pacific Data Electric, Inc. - February 12, 2015 February 12, 2015 Worker Safety and Health Enforcement Preliminary Notice of Violation issued to Pacific Data Electric, Inc. On...

  15. Symmetry violations in nuclear and neutron $?$ decay

    E-Print Network [OSTI]

    K. K. Vos; H. W. Wilschut; R. G. E. Timmermans

    2015-09-14

    The role of $\\beta$ decay as a low-energy probe of physics beyond the Standard Model is reviewed. Traditional searches for deviations from the Standard Model structure of the weak interaction in $\\beta$ decay are discussed in the light of constraints from the LHC and the neutrino mass. Limits on the violation of time-reversal symmetry in $\\beta$ decay are compared to the strong constraints from electric dipole moments. Novel searches for Lorentz symmetry breaking in the weak interaction in $\\beta$ decay are also included, where we discuss the unique sensitivity of $\\beta$ decay to test Lorentz invariance. We end with a roadmap for future $\\beta$-decay experiments.

  16. Is violation of Newton's second law possible?

    E-Print Network [OSTI]

    A. Yu. Ignatiev

    2007-03-11

    Astrophysical observations (usually explained by dark matter) suggest that classical mechanics could break down when the acceleration becomes extremely small (the approach known as modified Newtonian dynamics, or MOND). I present the first analysis of MOND manifestations in terrestrial (rather than astrophysical) settings. A new effect is reported: around each equinox date, 2 spots emerge on the Earth where static bodies experience spontaneous acceleration due to the possible violation of Newton's second law. Preliminary estimates indicate that an experimental search for this effect can be feasible.

  17. Dispersion corrections to parity violating electron scattering

    SciTech Connect (OSTI)

    Gorchtein, M.; Horowitz, C. J. [Nuclear Theory Center, Indiana University, Bloomington, IN 47408 (United States); Ramsey-Musolf, M. J. [University of Wisconsin-Madison, Madison, WI 53706 (United States)

    2010-08-04

    We consider the dispersion correction to elastic parity violating electron-proton scattering due to {gamma}Z exchange. In a recent publication, this correction was reported to be substantially larger than the previous estimates. In this paper, we study the dispersion correction in greater detail. We confirm the size of the disperion correction to be {approx}6% for the QWEAK experiment designed to measure the proton weak charge. We enumerate parameters that have to be constrained to better than relative 30% in order to keep the theoretical uncertainty for QWEAK under control.

  18. On The Potential of Minimal Flavour Violation

    E-Print Network [OSTI]

    R. Alonso; M. B. Gavela; L. Merlo; S. Rigolin

    2011-06-06

    Assuming the Minimal Flavour Violation hypothesis, we derive the general scalar potential for fields whose background values are the Yukawa couplings. We analyze the minimum of the potential and discuss the fine-tuning required to dynamically generate the mass hierarchies and the mixings between different quark generations. Two main cases are considered, corresponding to Yukawa interactions being effective operators of dimension five or six (or, equivalently, resulting from bi-fundamental and fundamental scalar fields, respectively). At the renormalizable and classical level, no mixing is naturally induced from dimension five Yukawa operators. On the contrary, from dimension six Yukawa operators one mixing angle and a strong mass hierarchy among the generations result.

  19. Null Energy Condition violations in bimetric gravity

    E-Print Network [OSTI]

    Baccetti, Valentina; Visser, Matt

    2012-01-01

    We consider the effective stress-energy tensors for the foreground and background sectors in ghost-free bimetric gravity. By considering the symmetries of the theory, we show that the foreground and background null energy conditions (NECs) are strongly anti-correlated. In particular, the NECs can only be simultaneously fulfilled when they saturate, corresponding to foreground and background cosmological constants. In all other situations, either the foreground or the background is subject to a NEC-violating contribution to the total stress-energy.

  20. Privacy Act Violations | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal GasAdministration Medal of HonorPosterNational NuclearSecurityDisclosuresViolations |

  1. CP-Violation in K, B and B_{s} decays

    E-Print Network [OSTI]

    Fayyazuddin

    2009-09-28

    In this review we give an overview of CP-violation for K, B and B_s systems. Direct CP-violation and mixing induced CP-violation are discussed.

  2. Mixing and CP violation in the D0 and B0(s) systems

    E-Print Network [OSTI]

    Ligeti, Zoltan

    2008-01-01

    Lavoura and J. P. Silva, CP Violation, International Serieshep-ph/0402204]. Flavor Physics and CP Violation Conference,weakly on M 12 . Neglecting CP violation in D decay, ?m ? |?

  3. Maximal CP Violation in Flavor Neutrino Masses

    E-Print Network [OSTI]

    Kitabayashi, Teruyuki

    2015-01-01

    Since flavor neutrino masses $M_{\\mu\\mu,\\tau\\tau,\\mu\\tau}$ can be expressed in terms of $M_{ee,e\\mu,e\\tau}$, mutual dependence among $M_{\\mu\\mu,\\tau\\tau,\\mu\\tau}$ is derived by imposing some constraints on $M_{ee,e\\mu,e\\tau}$. For appropriately imposed constraints on $M_{ee,e\\mu,e\\tau}$, we show a texture of neutrino mass matrix giving rise to maximal CP violation. When the atmospheric neutrino mixing is also maximal, we discuss various specific textures of neutrino mass matrices including the texture with $M_{\\tau\\tau}=M^\\ast_{\\mu\\mu}$ derived as the simplest solution to the constraint of $M_{\\tau\\tau}-M_{\\mu\\mu}$=imaginary, which is required by the constraint of $M_{e\\mu}\\cos\\theta_{23}-M_{e\\tau}\\sin\\theta_{23}$=real for $\\cos 2\\theta_{23}=0$. It is found that Majorana CP violation depends on the phase of $M_{ee}$.

  4. Muon Anomaly and Dark Parity Violation

    E-Print Network [OSTI]

    Hooman Davoudiasl; Hye-Sung Lee; William J. Marciano

    2012-07-06

    The muon anomalous magnetic moment exhibits a 3.6 \\sigma discrepancy between experiment and theory. One explanation requires the existence of a light vector boson, Z_d (the dark Z), with mass 10 - 500 MeV that couples weakly to the electromagnetic current through kinetic mixing. Support for such a solution also comes from astrophysics conjectures regarding the utility of a U(1)_d gauge symmetry in the dark matter sector. In that scenario, we show that mass mixing between the Z_d and ordinary Z boson introduces a new source of "dark" parity violation which is potentially observable in atomic and polarized electron scattering experiments. Restrictive bounds on the mixing (m_{Z_d} / m_Z) \\delta are found from existing atomic parity violation results, \\delta^2 < 2 x 10^{-5}. Combined with future planned and proposed polarized electron scattering experiments, a sensitivity of \\delta^2 ~ 10^{-6} is expected to be reached, thereby complementing direct searches for the Z_d boson.

  5. The CP-Violating pMSSM

    E-Print Network [OSTI]

    Joshua Berger; Matthew W. Cahill-Rowley; Diptimoy Ghosh; JoAnne L. Hewett; Ahmed Ismail; Thomas G. Rizzo

    2015-10-29

    We investigate the sensitivity of the next generation of flavor-based low-energy experiments to probe the supersymmetric parameter space in the context of the phenomenological MSSM (pMSSM), and examine the complementarity with direct searches for Supersymmetry at the 13 TeV LHC in a quantitative manner. To this end, we enlarge the previously studied pMSSM parameter space to include all physical non-zero CP-violating phases, namely those associated with the gaugino mass parameters, Higgsino mass parameter, and the tri-linear couplings of the top quark, bottom quark and tau lepton. We find that future electric dipole moment and flavor measurements can have a strong impact on the viability of these models even if the sparticle spectrum is out of reach of the 13 TeV LHC. In particular, the lack of positive signals in future low-energy probes would exclude values of the phases between ${\\cal O}(10^{-2})$ and ${\\cal O}(10^{-1})$. We also find regions of parameter space where large phases remain allowed due to cancellations. Most interestingly, in some rare processes, such as BR($B_s \\to \\mu^+ \\mu^-$ ), we find that contributions arising from CP-violating phases can bring the potentially large SUSY contributions into better agreement with experiment and Standard Model predictions.

  6. First search for CP violation in tau lepton decay

    E-Print Network [OSTI]

    Ammar, Raymond G.; Baringer, Philip S.; Bean, Alice; Besson, David Zeke; Coppage, Don; Darling, C.; Davis, Robin E. P.; Kotov, S.; Kravchenko, I.; Kwak, Nowhan; Zhou, L.

    1998-11-01

    We have performed the first search for CP violation in tau lepton decay. CP violation in lepton decay does not occur in the minimal standard model but can occur in extensions such as the multi-Higgs doublet model. It appears as a characteristic...

  7. Time Reversal Invariance Violation in Neutron Deuteron Scattering

    E-Print Network [OSTI]

    Young-Ho Song; Rimantas Lazauskas; Vladimir Gudkov

    2011-04-15

    Time reversal invariance violating (TRIV) effects for low energy elastic neutron deuteron scattering are calculated for meson exchange and EFT-type of TRIV potentials in a Distorted Wave Born Approximation, using realistic hadronic strong interaction wave functions, obtained by solving three-body Faddeev equations in configuration space. The relation between TRIV and parity violating observables are discussed.

  8. Conditions for detecting CP violation via neutrinoless double beta decay

    E-Print Network [OSTI]

    Alicja Joniec; Marek Zralek

    2005-12-30

    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.

  9. 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)

    2006-02-01

    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.

  10. Unobservable Higgs Boson and Spontaneous Violation of Lorentz Invariance

    E-Print Network [OSTI]

    Noboru Nakanishi

    2007-08-13

    The standard theory of elementary particle physics is modified in such a way that the Higgs boson becomes unobservable and Lorentz invariance is slightly violated at the level of the S-matrix. The basic technique of realizing these properties without violating the unitarity of the physical S-matrix is the use of the complex-ghost quantum field theory.

  11. Constraints on relativity violations from gamma-ray bursts

    E-Print Network [OSTI]

    Alan Kostelecky; Matthew Mewes

    2013-01-23

    Tiny violations of the Lorentz symmetry of relativity and the associated discrete CPT symmetry could emerge in a consistent theory of quantum gravity such as string theory. Recent evidence for linear polarization in gamma-ray bursts improves existing sensitivities to Lorentz and CPT violation involving photons by factors ranging from ten to a million.

  12. Optical-cavity tests of higher-order Lorentz violation

    E-Print Network [OSTI]

    Matthew Mewes

    2012-06-22

    The effects of Lorentz-violating operators of nonrenormalizable dimension in optical resonate cavities are studied. Optical-frequency experiments are shown to provide sensitivity to nondispersive nonbirefringent violations that is many orders of magnitude beyond current constraints from microwave cavities. Existing experiments based on Fabry-Perot and ring resonators are considered as illustrations.

  13. Molecular CP-violating magnetic moment Andrei Derevianko1

    E-Print Network [OSTI]

    Titov, Anatoly

    Molecular CP-violating magnetic moment Andrei Derevianko1 and M. G. Kozlov2 1 Department of Physics Received 26 April 2005; published 6 October 2005 A concept of CP-violating T,P-odd permanent molecular magnetic moments CP is introduced. We relate the moments to the electric dipole moment of electron e

  14. Final Notice of Violation to UChicago Argonne, LLC- WEA-2009-04

    Broader source: Energy.gov [DOE]

    DOE is issuing this Final Notice of Violation (FNOV) to UChicago Argonne, LLC (UChicago Argonne) for violations of DOE's worker safety and health requirements.

  15. Probing CP Violation in $h\\rightarrow\\gamma\\gamma$ with Converted...

    Office of Scientific and Technical Information (OSTI)

    CP Violation in hrightarrowgammagamma with Converted Photons Citation Details In-Document Search Title: Probing CP Violation in hrightarrowgammagamma with Converted...

  16. Energy Efficiency Through Lighting Upgrades

    SciTech Connect (OSTI)

    Kara Berst; Maria Howeth

    2010-06-01

    Lighting upgrades including neon to LED, incandescent to CFL's and T-12 to T-8 and T-5's were completed through this grant. A total of 16 Chickasaw nation facilities decreased their carbon footprint because of these grant funds. Calculations used were based on comparing the energy usage from the previous year�¢����s average and the current energy usage. For facilities without a full year's set of energy bills, the month after installation was compared to the same month from the previous year. Overall, the effect the lighting change-outs had for the gaming centers and casinos far exceeded expectations. For the Madill Gaming Center; both an interior and exterior upgrade was performed which resulted in a 31% decrease in energy consumption. This same reduction was seen in every facility that participated in the grant. Just by simply changing out light bulbs to newer energy efficient equivalents, a decrease in energy usage can be achieved and this was validated by the return on investment seen at Chickasaw Nation facilities. Along with the technical project tasks were awareness sessions presented at Chickasaw Head Starts. The positive message of environmental stewardship was passed down to head start students and passed along to Chickasaw employees. Excitement was created in those that learned what they could do to help reduce their energy bills and many followed through and took the idea home. For a fairy low cost, the general public can also use this technique to lower their energy consumption both at home and at work. Although the idea behind the project was somewhat simple, true benefits have been gained through environmental awareness and reductions of energy costs.

  17. Lepton Flavor Violating Decays - Review & Outlook

    E-Print Network [OSTI]

    Toshinori Mori

    2006-05-31

    Here I review the status and prospects of experimental investigations into lepton flavor violation (LFV) in charged leptons. Rare LFV processes are naturally expected to occur through loops of TeV scale particles predicted by supersymmetric theories or other models beyond the Standard Model. In contrast to physics of quark flavors that is dominated by the Cabibbo-Kobayashi-Maskawa matrix, LFV in charged leptons is a definitive signal of new physics. Currently active researches are rare tau decay searches at the B factories. The MEG experiment will soon start a sensitive search for the LFV muon decay, mu to e gamma. Prospects for searches at the LHC, a possibility of a fixed target LFV experiment with high energy muons, and a sensitivity of leptonic kaon decays to LFV are also briefly discussed.

  18. Lorentz violation from gamma-ray bursts

    E-Print Network [OSTI]

    Shu Zhang; Bo-Qiang Ma

    2014-06-18

    The constancy of light speed is a basic assumption in Einstein's special relativity, and consequently the Lorentz invariance is a fundamental symmetry of space-time in modern physics. However, it is speculated that the speed of light becomes energy-dependent due to the Lorentz invariance violation~(LV) in various new physics theories. We analyse the data of the energetic photons from the gamma-ray bursts (GRBs) by the Fermi Gamma-Ray Space Telescope, and find more events to support the energy dependence in the light speed with both linear and quadratic form corrections. We provide two scenarios to understand all the new-released Pass~8 data of bright GRBs by the Fermi-LAT Collaboration, with predictions from such scenarios being testable by future detected GRBs.

  19. Lorentz Violation from the Higgs Portal

    E-Print Network [OSTI]

    Gian F. Giudice; Martti Raidal; Alessandro Strumia

    2010-06-16

    We study bounds and signatures of models where the Higgs doublet has an inhomo- geneous mass or vacuum expectation value, being coupled to a hidden sector that breaks Lorentz invariance. This physics is best described by a low-energy effective Lagrangian in which the Higgs speed-of-light is smaller than c; such effect is naturally small because it is suppressed by four powers of the inhomogeneity scale. The Lorentz violation in the Higgs sector is communicated at tree level to fermions (via Yukawa interactions) and to massive gauge bosons, although the most important effect comes from one-loop dia- grams for photons and from two-loop diagrams for fermions. We calculate these effects by deriving the renormalization-group equations for the speed-of-light of the Standard Model particles. An interesting feature is that the strong coupling dynamically makes the speed-of-light equal for all colored particles.

  20. Spin-Statistics Violations in Superstring Theory

    E-Print Network [OSTI]

    Mark G. Jackson

    2008-12-30

    I describe how superstring theory may violate spin-statistics in an experimentally observable manner. Reviewing the basics of superstring interactions and how to utilize these to produce a statistical phase, I then apply these ideas to two specific examples. The first is the case of heterotic worldsheet linkings, whereby one small closed string momentarily enlarges sufficiently to pass over another, producing such a statistical phase. The second is the braneworld model with noncommutative geometry, whereby matter composed of open strings may couple to a background in which spacetime coordinates do not commute, modifying the field (anti)commutator algebra. I conclude with ways to sharpen and experimentally test these exciting avenues to possibly verify superstring theory.

  1. CP Violating B ---> s Gamma Decay in Supersymmetric Models

    E-Print Network [OSTI]

    Chun-Khiang Chua; Xiao-Gang He; Wei-Shu Hou

    1999-02-20

    Supersymmetric models with nonuniversal down type squark masses can enrich the chiral structure and CP violating phenomena in $b\\to s\\gamma$ decays. Direct CP violation in $b\\to s \\gamma$, mixing induced CP violation in radiative $B_{d,s}$ decays (such as $B_s\\to \\phi \\gamma$ and $B_d \\to K^*_{1,2}\\gamma$), and $\\Lambda$ polarization in $\\Lambda_b \\to \\Lambda \\gamma$ can be substantially different from the Standard Model. Future experiements at $e^+ e^-$ and hadronic B factories will give important information on the underlying theory for radiative $b$ decays.

  2. Precision electroweak studies using parity violation in electron scattering

    SciTech Connect (OSTI)

    Paschke, Kent D,

    2013-11-01

    The nature of new neutral-current interactions can be revealed at the low-energy precision frontier, where studies of parity-violation in electron scattering will complement the energy-frontier studies at the LHC. Measurements of the parity-violating observable APV - the cross-section asymmetry in the scattering of longitudinally polarized electrons from an unpolarized target - are sensitive to possible contact interactions from new physics at multi-TeV mass scales. The 12 GeV upgrade at JLab and a new, high-intensity beam at Mainz offer opportunities for significant improvements in measurements of electron-electron and electron-quark parity-violating interactions.

  3. Search for CP Violation in D± Meson Decays to ??±

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

    Stari?, M.; Aihara, H.; Arinstein, K.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Bay, A.; Bhardwaj, V.; Bhuyan, B.; Bozek, A.; Bra?ko, M.; Browder, T. E.; Chen, A.; Chen, P.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, I.-S.; Cho, K.; Choi, Y.; Doležal, Z.; Drásal, Z.; Eidelman, S.; Fast, J. E.; Gaur, V.; Gabyshev, N.; Golob, B.; Haba, J.; Hayasaka, K.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y. B.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, J. B.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Kobayashi, N.; Koblitz, S.; Kodyš, P.; Korpar, S.; Križan, P.; Kumita, T.; Kwon, Y.-J.; Lange, J. S.; Lee, S.-H.; Li, J.; Li, Y.; Libby, J.; Liu, C.; Liu, Z. Q.; Louvot, R.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mohanty, G. B.; Nakano, E.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Nozaki, T.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlova, G.; Park, H. K.; Park, K. S.; Pestotnik, R.; Petri?, M.; Piilonen, L. E.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, K.; Sakai, Y.; Sanuki, T.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Seon, O.; Sevior, M. E.; Shebalin, V.; Shen, C. P.; Shibata, T.-A.; Shiu, J.-G.; Shwartz, B.; Simon, F.; Smerkol, P.; Sohn, Y.-S.; Sokolov, A.; Stani?, S.; Sumihama, M.; Sumisawa, K.; Tatishvili, G.; Teramoto, Y.; Trabelsi, K.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Vossen, A.; Wang, C. H.; Wang, M.-Z.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Won, E.; Yabsley, B. D.; Yamashita, Y.; Yuan, C. Z.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.

    2012-02-01

    We search for CP violation in Cabibbo-suppressed charged D meson decays by measuring the difference between the CP-violating asymmetries for the Cabibbo-suppressed decays D±?K?K??± and the Cabibbo-favored decays D±s?K?K??± in the K?K? mass region of the ? resonance. Using 955 fb?¹ of data collected with the Belle detector, we obtain AD?????CP=(+0.51±0.28±0.05)%. The measurement improves the sensitivity of previous searches by more than a factor of 5. We find no evidence for direct CP violation.

  4. Lepton Number Violation and the Baryon Asymmetry of the Universe

    E-Print Network [OSTI]

    Harz, Julia; Päs, Heinrich

    2015-01-01

    Neutrinoless double beta decay, lepton number violating collider processes and the Baryon Asymmetry of the Universe (BAU) are intimately related. In particular lepton number violating processes at low energies in combination with sphaleron transitions will typically erase any pre-existing baryon asymmetry of the Universe. In this contribution we briefly review the tight connection between neutrinoless double beta decay, lepton number violating processes at the LHC and constraints from successful baryogenesis. We argue that far-reaching conclusions can be drawn unless the baryon asymmetry is stabilized via some newly introduced mechanism.

  5. CP violation and gravity as the weakest force

    E-Print Network [OSTI]

    Archil Kobakhidze

    2008-07-03

    We argue that CP violation has rather dramatic impact on the "gravity as the weakest force" conjecture. Namely we find that new ultraviolet scale must be $\\Lambda \\lesssim \\theta g^3 M_P$, where $\\theta$ is an effective parameter describing CP violation and $g$ is the gauge coupling constant. The bound implies that CP-conserving limit is discontinuous, and possibly indicates that the class of effective theories with strict CP conservation is inconsistent with a fundamental theory incorporating quantum gravity. At the same time, the mass hierarchy problem can be explained due to the smallness of the CP violation, $\\theta \\sim 10^{-15}$ or so.

  6. Summary of CP Violation in D -> hh Decays at Belle

    E-Print Network [OSTI]

    Eric White

    2013-01-20

    Although CP violation is predicted to be small in the Standard Model, there exists a continuing theoretical interest within the charm sector due to enhancements of CPV through new physics processes. We present an overview of the measurements of direct CP violation in the charm sector at Belle. We give a brief review of the theory of CP violation in charm physics, then discuss recent measurements for the decay modes $D^{+}_{(s)}\\rightarrow \\phi\\pi^{+}$; $D^{0}\\rightarrow K^{0}_{S}\\pi^{0}, K^{0}_{S}\\eta^{(\\prime)}$; $D^{+}\\rightarrow \\pi^{+}\\eta^{(\\prime)}$; and $D^{+}\\rightarrow K^{0}_{S}\\pi^{+}$.

  7. Search for CP Violation in D± Meson Decays to ??±

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

    Stari?, M.; Aihara, H.; Arinstein, K.; Asner, D. M.; Aushev, T.; Bakich, A. M.; Bay, A.; Bhardwaj, V.; Bhuyan, B.; Bozek, A.; et al

    2012-02-13

    We search for CP violation in Cabibbo-suppressed charged D meson decays by measuring the difference between the CP-violating asymmetries for the Cabibbo-suppressed decays D±?K?K??± and the Cabibbo-favored decays D±s?K?K??± in the K?K? mass region of the ? resonance. Using 955 fb?¹ of data collected with the Belle detector, we obtain AD?????CP=(+0.51±0.28±0.05)%. The measurement improves the sensitivity of previous searches by more than a factor of 5. We find no evidence for direct CP violation.

  8. Observing CP Violation in Many-Body Decays

    E-Print Network [OSTI]

    Mike Williams

    2011-05-26

    It is well known that observing CP violation in many-body decays could provide strong evidence for physics beyond the Standard Model. Many searches have been carried out; however, no 5sigma evidence for CP violation has yet been found in these types of decays. A novel model-independent method for observing CP violation in many-body decays is presented in this paper. It is shown that the sensitivity of this method is significantly larger than those used to-date.

  9. Some cultural practices affecting bulb rot, plant and floral development, and seed yield of the White Grano onion 

    E-Print Network [OSTI]

    Enzie, Joseph Vincent

    1955-01-01

    Public Buildings Leading by Example Philip Gates, CEM, CMVP, EIT Energy Manager 1 ESL-KT-13-12-27 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 2 H ow to be gin ? ESL-KT-13-12-27 CATEE 2013: Clean Air... solution • 6,500 devices • $200K annual savings Pool Pump Control • Stop over-circulating • 24 Public Pools • $70K annual savings LED Street Lighting • Replace high wattage fixt. • 25,000 fixtures • $, kWh annually Chillers & DX Units • Eff. equip. w...

  10. Delivering Energy Efficiency to Middle Income Single Family Households

    E-Print Network [OSTI]

    Zimring, Mark

    2012-01-01

    smartregs City of Boulder Rebates Matrix web page: http://light bulbs (CFLs) or provide rebates for high- efficiencymeasures. Targeted rebates. It is clear that rebates help to

  11. *PLEASE NOTE CHANGE OF ROOM TODAY!* Flavour Physics and CP Violation (2/4)

    ScienceCinema (OSTI)

    None

    2011-10-06

    Lecture 2: * Lessons from the B-factories * The New Physics flavor puzzle * Minimal Flavor Violation

  12. Experimental overview of recent mixing and $\\textit CP$-violation results in semileptonic $\\textit B$ decays

    E-Print Network [OSTI]

    Grillo, Lucia

    2015-01-01

    Experimental overview of recent mixing and $\\textit CP$-violation results in semileptonic $\\textit B$ decays

  13. DOE Cites Washington TRU Solutions for Nuclear Safety Violations...

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

    Violations December 22, 2005 - 4:53pm Addthis WASHINGTON, D.C. -- The Department of Energy (DOE) today notified Washington TRU Solutions (WTS) that it will fine the company...

  14. Neutron-Antineutron Oscillation as a Signal of CP Violation

    E-Print Network [OSTI]

    Berezhiani, Zurab

    2015-01-01

    Assuming the Lorentz and CPT invariances we show that neutron-antineutron oscillation implies breaking of CP along with baryon number violation. Presence of external magnetic field does not add any new operator to mixing of neutron and antineutron.

  15. Preliminary Notice of Violation, Lockheed Martin Energy Systems...

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

    Systems - EA-2000-11 Preliminary Notice of Violation, Lockheed Martin Energy Systems - EA-2000-11 August 24, 2000 Issued to Lockheed Martin Energy Systems, related to Quality...

  16. New Paradigm for Baryon and Lepton Number Violation

    E-Print Network [OSTI]

    Pavel Fileviez Perez

    2015-08-17

    The possible discovery of proton decay, neutron-antineutron oscillation, neutrinoless beta decay in low energy experiments, and exotic signals related to the violation of the baryon and lepton numbers at collider experiments will change our understanding of the conservation of fundamental symmetries in nature. In this review we discuss the rare processes due to the existence of baryon and lepton number violating interactions. The simplest grand unified theories and the neutrino mass generation mechanisms are discussed. The theories where the baryon and lepton numbers are defined as local gauge symmetries spontaneously broken at the low scale are discussed in detail. The simplest supersymmetric gauge theory which predicts the existence of lepton number violating processes at the low scale is investigated. The main goal of this review is to discuss the main implications of baryon and lepton number violation in physics beyond the Standard Model.

  17. Preliminary Notice of Violation, Safety and Ecology Corporation...

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

    June 14, 2005 Issued to Safety and Ecology Corporation related to a 10 CFR Part 708 Violation at the Portsmouth Gaseous Diffusion Project On June 14, 2005, the U.S. Department of...

  18. Preliminary Notice of Violation, Lockheed Martin Energy Systems...

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

    Systems, Inc - EA-98-07 Preliminary Notice of Violation, Lockheed Martin Energy Systems, Inc - EA-98-07 September 21, 1998 Issued to Lockheed Martin Energy Systems, Inc., related...

  19. Preliminary Notice of Violation, Babcock and Wilcox Technologies...

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

    and Wilcox Technologies of Ohio, Inc - EA-2001-03 Preliminary Notice of Violation, Babcock and Wilcox Technologies of Ohio, Inc - EA-2001-03 July 11, 2001 Issued to Babcock and...

  20. 50 years of CP violation — What have we learned?

    SciTech Connect (OSTI)

    McKellar, Bruce H. J.

    2015-04-24

    Early after the discovery of CP violation, the explanation of how the Standard Model of particle physics could allow CP violation was quickly given, but it took many years for the original observation to be unequivocally explained on that basis. It was also proposed that this observation opened up the possibility that we could now explain the fact that the universe is made of matter. Remarkably, 50 years later we have no evidence in particle physics that there is any CP violation except that of the Kobayashi Maskawa mechanism of the standard model. Yet we fail completely to explain the baryon asymmetry of the Universe through that mechanism. After reviewing the main points in the history I describe the present experimental attempts to find CP violation beyond the standard model, and explain the theoretical attempts to explain the matter in the Universe.

  1. Future Directions in Parity Violation: From Quarks to the Cosmos

    E-Print Network [OSTI]

    Michael J. Ramsey-Musolf

    2007-06-26

    I discuss the prospects for future studies of parity-violating (PV) interactions at low energies and the insights they might provide about open questions in the Standard Model as well as physics that lies beyond it. I cover four types of parity-violating observables: PV electron scattering; PV hadronic interactions; PV correlations in weak decays; and searches for the permanent electric dipole moments of quantum systems.

  2. Time-reversal symmetry violation in several Lepton-Flavor-Violating processes

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    2015-01-01

    We compute a T-odd triple vector correlation for the $\\mu\\rightarrow e\\gamma $ decay and the $\\mu\\rightarrow e$ conversion process. We find simple results in terms of the CP violating phases of the effective Hamiltonians. Then we focus on the minimal Left-Right symmetric extension of the Standard Model, which can lead to an appreciable correlation. We show that under rather general assumptions, this correlation can be used to discriminate between Parity or Charge-conjugation as the discrete Left-Right symmetry.

  3. Time-reversal symmetry violation in several Lepton-Flavor-Violating processes

    E-Print Network [OSTI]

    Juan Carlos Vasquez

    2015-04-29

    We compute a T-odd triple vector correlation for the $\\mu\\rightarrow e\\gamma $ decay and the $\\mu\\rightarrow e$ conversion process. We find simple results in terms of the CP violating phases of the effective Hamiltonians. Then we focus on the minimal Left-Right symmetric extension of the Standard Model, which can lead to an appreciable correlation. We show that under rather general assumptions, this correlation can be used to discriminate between Parity or Charge-conjugation as the discrete Left-Right symmetry.

  4. National Nuclear Security Administration Fact Sheet Preliminary Notice of Violation: Worker Safety and Health Violations at

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOEDepartment ofProgram |(Upstate New York)ImpactDepartmentViolations at

  5. Neutrinoless Double Beta Decay with R-parity Violation

    E-Print Network [OSTI]

    Yosuke Uehara

    2002-06-26

    We consider recently observed neutrinoless double beta decay in the context of the minimal supersymmetric standard model with R-parity violating couplings lambda^{'}. We observe that most of the current experimental bounds on the R-parity violating couplings do not exclude the possibility that the neutrinoless double beta decay is caused by R-parity violation. But if we consider K-bar{K} oscillation, we observe that we have to make the R-parity violating couplings generation-dependent to accomodate with the observed neutrinoless double beta decay. And furthermore, we need some mechanism to cancel the contribution to K-bar{K} mixing from a large R-parity violating coupling. We realized this cancellation by assuming that the first- and the second- generation of quark sector do not couple with the first-generation lepton sector by R-parity violating couplings except the term W=lambda_{111}^{'} L_{1} Q_{1} D_{1}^{c}, which is responsible for the observed neutrinoless double beta decay.

  6. The CP-Violating pMSSM

    E-Print Network [OSTI]

    Berger, Joshua; Ghosh, Diptimoy; Hewett, JoAnne L; Ismail, Ahmed; Rizzo, Thomas G

    2015-01-01

    We investigate the sensitivity of the next generation of flavor-based low-energy experiments to probe the supersymmetric parameter space in the context of the phenomenological MSSM (pMSSM), and examine the complementarity with direct searches for Supersymmetry at the 13 TeV LHC in a quantitative manner. To this end, we enlarge the previously studied pMSSM parameter space to include all physical non-zero CP-violating phases, namely those associated with the gaugino mass parameters, Higgsino mass parameter, and the tri-linear couplings of the top quark, bottom quark and tau lepton. We find that future electric dipole moment and flavor measurements can have a strong impact on the viability of these models even if the sparticle spectrum is out of reach of the 13 TeV LHC. In particular, the lack of positive signals in future low-energy probes would exclude values of the phases between ${\\cal O}(10^{-2})$ and ${\\cal O}(10^{-1})$. We also find regions of parameter space where large phases remain allowed due to cance...

  7. The MOMENT to search for CP violation

    E-Print Network [OSTI]

    Blennow, Mattias; Fernández-Martinez, Enrique

    2015-01-01

    In this letter, we analyze for the first time the physics reach in terms of sensitivity to leptonic CP violation of the proposed MuOn-decay MEdium baseline NeuTrino beam (MOMENT) experiment, a novel neutrino oscillation facility that would operate with neutrinos from muon decay. Apart from obtaining a sufficiently intense flux, the bottlenecks to the physics reach of this experiment will be achieving a high enough suppression of the atmospheric background and, particularly, attaining a sufficient level of charge identification. We thus present our results as a function of these two factors. As for the detector, we consider a very massive Gd-doped Water Cherenkov detector. We find that MOMENT will be competitive with other currently planned future oscillation experiments if a charge identification of at least 80 % can be achieved at the same time that the atmospheric background can be suppressed by at least a factor of ten. We also find a large synergy of MOMENT with the current generation of neutrino oscillat...

  8. Essays on Environmental and Resource Economics

    E-Print Network [OSTI]

    Toledo, Chantal Nathalie

    2013-01-01

    energy efficient light bulb at home are more likely to take-or an energy efficient light bulb at home increases theenergy efficient light bulb at home are more likely to take-

  9. Search for Lepton Flavour Violating Decays Tau -> l Ks with the BABAR Detector

    SciTech Connect (OSTI)

    Cenci, Riccardo; /SLAC

    2009-03-20

    We present the search for the lepton flavour violating decay {tau} {yields} lK{sup 0}{sub s} with the BaBar experiment data. This process and many other lepton flavour violating {tau} decays, like {tau} {yields} {mu}{gamma} and {tau} {yields} lll, are one of the most promising channel to search for evidence of new physics. According to the Standard Model and the neutrino mixing parameters, branching fractions are estimated well below 10{sup -14}, but many models of new physics allow for branching fractions values close to the present experimental sensitivity. This analysis is based on a data sample of 469fb{sup -1} collected by BABAR detector at the PEP-II storage ring from 1999 to 2007, equivalent to 431 millions of {tau} pairs. the BABAR experiment, initially designed for studying CP violation in B mesons, has demonstrated to be one of the most suitable environments for studying {tau} decays. The tracking system, the calorimeter and the particle identification of BABAR, together with the knowledge of the {tau} initial energy, allow an extremely powerful rejection of background events that, for this analysis, is better than 10{sup -9}. Being {tau} {yields} lK{sup 0}{sub s} a decay mode without neutrinos, the signal {tau} decay can be fully reconstructed. Kinematical constraints are used in a fit that provides a decay tree reconstruction with a high resolution. For this analysis MC simulated events play a decisive role for estimating the signal efficiency and study the residual background. High statistics MC sample are produced simulating detector conditions for different periods of data collection, in order to reduce any discrepancies with the data. When discrepancies can not be removed, we perform studies to compute a correction factor or an estimation of systematic errors that need to be included in the final measurement. A significant improvement of the current result can be reached only with a higher statistics and, therefore, with a new collider providing a luminosity from 10 to 100 times more than PEP-II. A new detector, with improved performance and able to collect data in a high background environment, is also requested to fully exploit the capability of such amount of data. In fact, only keeping the efficiency and the background as similar as possible to present ones, we will be able to scale almost linearly the estimated upper limit according to the luminosity. The strong potential of improvement for the search of lepton flavour violation {tau} decays makes the building of such a machine highly desirable.

  10. CP violation and the fourth generation

    SciTech Connect (OSTI)

    Eilam, Gad; Melic, Blazenka; Trampetic, Josip

    2009-12-01

    Within the standard model with the 4th generation quarks b{sup '} and t{sup '} we have analyzed CP-violating flavor changing neutral current processes t{yields}cX, b{sup '}{yields}sX, b{sup '}{yields}bX, t{sup '}{yields}cX, and t{sup '}{yields}tX, with X=H,Z,{gamma},g, by constructing and employing a global, unique fit for the 4th generation mass mixing matrix (CKM4) at 300{<=}m{sub t{sup '}}{<=}700 GeV. All quantities appearing in the CKM4 were subject to our fitting procedure. We have found that our fit produces the following CP partial rate asymmetry dominance: a{sub CP}(b{sup '}{yields}s(H,Z;{gamma},g)){approx_equal}(94,62;47,41)%, at m{sub t{sup '}}{approx_equal}300,350 GeV, respectively. From the experimental point of view the best decay mode, out of the above four, is certainly b{sup '}{yields}s{gamma}, due to the presence of the high energy single photon in the final state. We have also obtained relatively large asymmetry a{sub CP}(t{yields}cg){approx_equal}(8-18)% for t{sup '} running in the loops. There are fair chances that the 4th generation quarks will be discovered at LHC and that some of their decay rates will be measured. If b{sup '} and t{sup '} exist at energies we assumed, with well executed tagging, large a{sub CP} could be found too.

  11. Efficiency Exchange Conference Highlights Energy Efficiency Innovation...

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

    Efficiency Exchange Conference Highlights Energy Efficiency Innovations and Trends Northwest electric power industry connects on the latest energy efficiency programs and...

  12. Efficiency Exchange highlights energy efficiency innovations...

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

    Efficiency Exchange highlights energy efficiency innovations and trends Northwest electric power industry connects on the latest energy efficiency programs and strategies Portland,...

  13. Definition of Energy Efficiency

    U.S. Energy Information Administration (EIA) Indexed Site

    Energy Users Energy Efficiency Page Energy Efficiency Definition Energy Efficiency: Definition Stairs) "Take the Stairs--Be More Energy Efficient" Person A interprets the sign as...

  14. Probing CP violation at LBNE with reactor experiments

    E-Print Network [OSTI]

    Debajyoti Dutta; Kalpana Bora

    2014-09-30

    In this work, we have explored the possibilities of improving CP violation discovery potential of newly planned Long-Baseline Neutrino Experiment (LBNE), U.S.A., by combining with data from reactors. The third mixing angle $\\theta_{13}$ is now very precisely measured and this precise measurenent of $\\theta_{13}$ helps in measurement of CP violation. Here, CP violation is studied with and without data from reactors. Impact of placing a ND is also studied. It is found that CPV discovery potential of LBNE with ND increases when combined with data from reactors. With a far detector of 35 kt, it is possible to obtain 5$\\sigma$ sensitivity of CPV when run for 5 years in $\

  15. Constraints on Lorentz violation from gravitational Cherenkov radiation

    E-Print Network [OSTI]

    Kostelecky, Alan

    2015-01-01

    Limits on gravitational Cherenkov radiation by cosmic rays are obtained and used to constrain coefficients for Lorentz violation in the gravity sector associated with operators of even mass dimensions, including orientation-dependent effects. We use existing data from cosmic-ray telescopes to obtain conservative two-sided constraints on 80 distinct Lorentz-violating operators of dimensions four, six, and eight, along with conservative one-sided constraints on three others. Existing limits on the nine minimal operators at dimension four are improved by factors of up to a billion, while 74 of our explicit limits represent stringent first constraints on nonminimal operators. Prospects are discussed for future analyses incorporating effects of Lorentz violation in the matter sector, the role of gravitational Cherenkov radiation by high-energy photons, data from gravitational-wave observatories, the tired-light effect, and electromagnetic Cherenkov radiation by gravitons.

  16. Hadronic Parity Violation: a New View through the Looking Glass

    E-Print Network [OSTI]

    Michael J. Ramsey-Musolf; Shelley A. Page

    2006-01-17

    Studies of the strangeness changing hadronic weak interaction have produced a number of puzzles that have so far evaded a complete explanation within the Standard Model. Their origin may lie either in dynamics peculiar to weak interactions involving strange quarks or in more general aspects of the interplay between strong and weak interactions. In principle, studies of the strangeness conserving hadronic weak interaction using parity violating hadronic and nuclear observables provide a complementary window on this question. However, progress in this direction has been hampered by the lack of a suitable theoretical framework for interpreting hadronic parity violation measurements in a model-independent way. Recent work involving effective field theory ideas has led to the formulation of such a framework while motivating the development of a number of new hadronic parity violation experiments in few-body systems. In this article, we review these recent developments and discuss the prospects and opportunities for further experimental and theoretical progress.

  17. CP Violation and Baryogenesis in the Presence of Black Holes

    E-Print Network [OSTI]

    Tom Banks; Willy Fischler

    2015-05-16

    In a recent paper[1] Kundu and one of the present authors showed that there were transient but observable CP violating effects in the decay of classical currents on the horizon of a black hole, if the Lagrangian of the Maxwell field contained a CP violating angle {\\theta}. In this paper we demonstrate that a similar effect can be seen in the quantum mechanics of QED: a non-trivial Berry phase in the QED wave function is produced by in-falling electric charges. We also investigate whether CP violation, of this or any other type, might be used to produce the baryon asymmetry of the universe, in models where primordial black hole decay contributes to the matter content of the present universe. This can happen both in a variety of hybrid inflation models, and in the Holographic Space-time (HST) model of inflation[2].

  18. Regge behavior saves String Theory from causality violations

    E-Print Network [OSTI]

    D'Appollonio, Giuseppe; Russo, Rodolfo; Veneziano, Gabriele

    2015-01-01

    Higher-derivative corrections to the Einstein-Hilbert action are present in bosonic string theory leading to the potential causality violations recently pointed out by Camanho et al. We analyze in detail this question by considering high-energy string-brane collisions at impact parameters $b \\le l_s$ (the string-length parameter) with $l_s \\gg R_p$ (the characteristic scale of the D$p$-brane geometry). If we keep only the contribution of the massless states causality is violated for a set of initial states whose polarization is suitably chosen with respect to the impact parameter vector. Such violations are instead neatly avoided when the full structure of string theory - and in particular its Regge behavior - is taken into account.

  19. Regge behavior saves String Theory from causality violations

    E-Print Network [OSTI]

    Giuseppe D'Appollonio; Paolo Di Vecchia; Rodolfo Russo; Gabriele Veneziano

    2015-05-12

    Higher-derivative corrections to the Einstein-Hilbert action are present in bosonic string theory leading to the potential causality violations recently pointed out by Camanho et al. We analyze in detail this question by considering high-energy string-brane collisions at impact parameters $b \\le l_s$ (the string-length parameter) with $l_s \\gg R_p$ (the characteristic scale of the D$p$-brane geometry). If we keep only the contribution of the massless states causality is violated for a set of initial states whose polarization is suitably chosen with respect to the impact parameter vector. Such violations are instead neatly avoided when the full structure of string theory - and in particular its Regge behavior - is taken into account.

  20. Strong Binary Pulsar Constraints on Lorentz Violation in Gravity

    E-Print Network [OSTI]

    Kent Yagi; Diego Blas; Nicolas Yunes; Enrico Barausse

    2014-04-30

    Binary pulsars are excellent laboratories to test the building blocks of Einstein's theory of General Relativity. One of these is Lorentz symmetry which states that physical phenomena appear the same for all inertially moving observers. We study the effect of violations of Lorentz symmetry in the orbital evolution of binary pulsars and find that it induces a much more rapid decay of the binary's orbital period due to the emission of dipolar radiation. The absence of such behavior in recent observations allows us to place the most stringent constraints on Lorentz violation in gravity, thus verifying one of the cornerstones of Einstein's theory much more accurately than any previous gravitational observation.

  1. Neutrinoless Double Beta Decay and Lepton Flavor Violation

    E-Print Network [OSTI]

    V. Cirigliano; A. Kurylov; M. J. Ramsey-Musolf; P. Vogel

    2004-06-17

    We point out that extensions of the Standard Model with low scale (~TeV) lepton number violation (LNV) generally lead to a pattern of lepton flavor violation (LFV) experimentally distinguishable from the one implied by models with GUT scale LNV. As a consequence, muon LFV processes provide a powerful diagnostic tool to determine whether or not the effective neutrino mass can be deduced from the rate of neutrinoless double beta decay. We discuss the role of \\mu -> e \\gamma and \\mu -> e conversion in nuclei, which will be studied with high sensitivity in forthcoming experiments.

  2. Can Parity Violation in Neutrino Transport Lead to Pulsar Kicks?

    E-Print Network [OSTI]

    Phil Arras; Dong Lai

    1998-06-21

    In magnetized proto-neutron stars, neutrino cross sections depend asymmetrically on the neutrino momenta due to parity violation. However, these asymmetric opacities do not induce any asymmetric flux in the bulk interior of the star where neutrinos are nearly in thermal equilibrium. Consequently, parity violation in neutrino absorption and scattering can only give rise to asymmetric neutrino flux above the neutrino-matter decoupling layer. The kick velocity is substantially reduced from previous estimates, requiring a dipole field $B \\sim 10^{16}$~G to get $v_{kick}$ of order a few hundred km~s$^{-1}$.

  3. Thermodynamics of Schrödinger black holes with hyperscaling violation

    E-Print Network [OSTI]

    J. Sadeghi; B. Pourhassan; F. Pourasadollah

    2012-11-06

    In this work, we follow Kim and Yamada (JHEP1107 (2011) 120) and utilize AdS in light-cone frame to derive thermodynamic and transport properties of two kinds of Schr\\"{o}dinger black holes with hyperscaling violation. In that case, we show entropy and temperature are depend on $\\theta$. In $\\theta=0$ we see our results are agree with the work of Kim and Yamada. We also construct R-charged black hole with hyperscaling violation and obtain thermodynamics and transport properties.

  4. Isospin-Violating Dark Matter in the Sun

    E-Print Network [OSTI]

    Yu Gao; Jason Kumar; Danny Marfatia

    2011-09-27

    We consider the prospects for studying spin-independent isospin-violating dark matter-nucleon interactions with neutrinos from dark matter annihilation in the Sun, with a focus on IceCube/DeepCore (IC/DC). If dark matter-nucleon interactions are isospin violating, IC/DC's reach in the spin-independent cross section may be competitive with current direct detection experiments for a wide range of dark matter masses. We also compare IC/DC's sensitivity to that of next generation argon, germanium, neon and xenon based detectors.

  5. Isospin Violation and the Proton's Strange Form Factors

    E-Print Network [OSTI]

    Randy Lewis; Nader Mobed

    1999-10-22

    The strange form factors of the proton are basic to an understanding of proton structure, and are presently the focus of many experiments. Before the strangeness effects can be extracted from data, it is necessary to calculate and remove effects due to isospin violation, which exist independently of the strange quark but which contribute nevertheless to the experimentally measured ``strange'' form factors. A discussion of the isospin violating contributions to vector form factors is given here in the context of heavy baryon chiral perturbation theory.

  6. DOE Cites Battelle Energy Alliance, LLC for Price-Anderson Violations...

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

    DOE Cites Battelle Energy Alliance, LLC for Price-Anderson Violations DOE Cites Battelle Energy Alliance, LLC for Price-Anderson Violations December 3, 2007 - 4:44pm Addthis...

  7. Search for lepton-flavour-violating decays of the Higgs boson...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Search for lepton-flavour-violating decays of the Higgs boson Citation Details In-Document Search Title: Search for lepton-flavour-violating decays of the Higgs...

  8. Energy Efficiency

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES ScienceInformationInformationFor DefenseEnergy-Efficiency Sign

  9. Monte Carlo simulation of baryon and lepton number violating processes at high energies

    E-Print Network [OSTI]

    M. J. Gibbs; A. Ringwald; B. R. Webber; J. T Zadrozny

    1994-06-09

    We report results obtained with the first complete event generator for electroweak baryon and lepton number violating interactions at supercolliders. We find that baryon number violation would be very difficult to establish, but lepton number violation can be seen provided at least a few hundred L violating events are available with good electron or muon identification in the energy range 10 GeV to 1 TeV.

  10. Violating the Bell-Leggett-Garg inequality with weak measurement of an entangled state

    E-Print Network [OSTI]

    Martinis, John M.

    , and can violate the inequality4 . To test such an inequality using two superconducting qubits, we replace

  11. CP Violation in Strange Baryon Decays: A Report from Fermilab Experiment 871

    E-Print Network [OSTI]

    Fermilab Experiment E871

    CP Violation in Strange Baryon Decays: A Report from Fermilab Experiment 871 C. James, a R. A, HyperCP , is a search for direct CP violation in \\Xi and \\Lambda hyperon decays. A non­zero value¯ \\Lambda , would be unambiguous evidence for direct CP violation. The first data­taking run finished

  12. Statistical Constraints on the Error of the Leptonic CP Violation of Neutrinos

    E-Print Network [OSTI]

    Kai Fu; Ying Zhang

    2015-04-28

    A constraint on the error of leptonic CP violation, which require the phase $\\delta_{CP}$ to be less than $\\pi/4$ for it to be distinguishable on a $2\\pi$ cycle, is presented. Under this constraint, the effects of neutrino detector 's distance, beam energy, and energy resolution are discussed with reference to the present values of these parameters in experiments. Although an optimized detector performances can minimize the deviation to yield a larger distinguishable range of the leptonic CP phase on a $2\\pi$ cycle, it is not possible to determine an arbitrary leptonic CP phase in the range of $2\\pi$ with the statistics from a single detector because of the existence of two singular points. An efficiency factor $\\eta$ is defined to characterize the distinguishable range of $\\delta_{CP}$. To cover the entire possible $\\delta_{CP}$ range, a combined efficiency factor $\\eta^*$ corresponding to multiple sets of detection parameters with different neutrino beam energies and distances is proposed. The combined efficiency factors $\\eta^*$ of various major experiments are also presented.

  13. On coupling NEC-violating matter to gravity

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

    Chatterjee, Saugata; Parikh, Maulik; van der Schaar, Jan Pieter

    2015-05-01

    We show that effective theories of matter that classically violate the null energy condition cannot be minimally coupled to Einstein gravity without being inconsistent with both string theory and black hole thermodynamics. We argue however that they could still be either non-minimally coupled or coupled to higher-curvature theories of gravity.

  14. Jan 6, 1998 HUNTING FOR DIRECT CP VIOLATION IN

    E-Print Network [OSTI]

    Fermilab Experiment E871

    . Due to low energy, it was difficult to produce large samples of hyperons and anti­hyperons to test. Recently, there has been a renewal of interest in hunting for CP asymmetry in strange­baryon decays motivation, recent experimental progress and the prospects for searching for direct CP violation

  15. Search for CP violation in charged D meson decays

    SciTech Connect (OSTI)

    Yumiceva, Francisco Xavier; /South Carolina U.

    2005-05-04

    At the present time, Charge-Parity asymmetry or CP Violation is one of the most studied topics in high energy physics. Precise measurements of CP parameters can test sensitive sectors of the Standard Model (SM). These measurements could also give us clues about physics beyond the SM. Furthermore, since CP Violation is one of the necessary conditions for generating a matter-antimatter asymmetric Universe according to the baryogenesis model of Sakharov, a better understanding of these processes will improve our knowledge about the origin of the Universe. CP Violation in single Cabibbo-Suppressed charged D meson decays is predicted by the SM to have asymmetries of the order of {Omicron}(10{sup -3}), results bigger than this will be strong evidence of physics beyond the SM. We report results of the search for CP violation in D{sup +} {yields} K{sup -}K{sup +}{pi}{sup +} meson decays. The selection criteria were optimized using a control sample from data with a luminosity of 9.8 fb{sup -1}.

  16. Violation of Laws, Losses, and Incidents of Security Concerns

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1992-09-15

    To set forth Department of Energy (DOE) procedures to assure timely and effective action relating to violations of criminal, laws, loses, and incidents of security concern to DOE. Cancels DOE O 5631.5. Canceled by DOE O 470.1 of 9-28-1995.

  17. Parity-violating anomalies and the stationarity of stochastic averages

    SciTech Connect (OSTI)

    Reuter, M.

    1988-01-15

    Within the framework of stochastic quantization the parity-violating anomalies in odd space-time dimensions are derived from the asymptotic stationarity of the stochastic average of a certain fermion bilinear. Contrary to earlier attempts, this method yields the correct anomalies for both massive and massless fermions.

  18. Characterizing Law of Demand Violations for Separable Utility

    E-Print Network [OSTI]

    Alexandrova, Ivana

    Characterizing Law of Demand Violations for Separable Utility Yakar Kannai1 and Larry Selden2 1 formulated in terms of utility functions representing un- derlying preferences generating the demand. However, relatively few explicit classes of utility functions have been proposed for which the Law of Demand fails

  19. Single B production through R-parity violation

    SciTech Connect (OSTI)

    O'Leary, Ben [SUPA, School of Physics, University of Edinburgh, Edinburgh EH9 3JZ, Scotland (United Kingdom)

    2007-03-01

    Supersymmetry without R-parity predicts tree-level quark flavor violation. We present a potential signal of single bottom production at electron-positron colliders with energies in the range 6 to 20 GeV. Taking into account rare decay limits, it should be detectable with the current BABAR and Belle data samples.

  20. When do Data Mining Results Violate Privacy? Murat Kantarcioglu

    E-Print Network [OSTI]

    Jin, Jiashun

    When do Data Mining Results Violate Privacy? Murat Kantarcioglu Purdue University Computer Sciences Privacy-preserving data mining has concentrated on obtain- ing valid results when the input data. Categories and Subject Descriptors H.2.8 [Database Management]: Database Applications-- Data mining; H.2

  1. Report of Honor Code Violation Louisiana Tech University

    E-Print Network [OSTI]

    Selmic, Sandra

    ) ____________________________________________________________________________ 3. Circumstances and Reasoning for Sanctions ­ Briefly summarize the facts of the violation and resulting sanctions. Attach separate page and appropriate documentation if necessary. 4. Sanctions (check all that apply) "F" for the course "F" for the assignment/exam Other Educational Sanction(s

  2. Lepton flavour violating processes at the International Linear Collider

    E-Print Network [OSTI]

    P. M. Ferreira; R. B. Guedes; R. Santos

    2007-02-13

    We study the effects of dimension six effective operators on the flavour violating production and decay of leptons at the International Linear Collider. Analytic expressions for the cross sections, decay widths and asymmetries of all flavour changing processes will be presented, as well as an analysis of the feasibility of their observation at the ILC.

  3. Free energy of Lorentz-violating QED at high temperature

    E-Print Network [OSTI]

    M. Gomes; T. Mariz; J. R. Nascimento; A. Yu. Petrov; A. F. Santos; A. J. da Silva

    2010-02-25

    In this paper we study the one- and two-loop contribution to the free energy in QED with the Lorentz symmetry breaking introduced via constant CPT-even Lorentz-breaking parameters at the high temperature limit. We find the impact of the Lorentz-violating term for the free energy and carry out a numerical estimation for the Lorentz-breaking parameter.

  4. Quantum Gravity Effect in Torsion Driven Inflation and CP violation

    E-Print Network [OSTI]

    Sayantan Choudhury; Barun Kumar Pal; Banasri Basu; Pratul Bandyopadhyay

    2015-10-10

    We have derived an effective potential for inflationary scenario from torsion and quantum gravity correction in terms of the scalar field hidden in torsion. A strict bound on the CP violating $\\theta$ parameter, ${\\cal O}(10^{-10})<\\theta<{\\cal O}(10^{-9})$ has been obtained, using {\\tt Planck+WMAP9} best fit cosmological parameters.

  5. Hot B violation, the lattice, and hard thermal loops

    E-Print Network [OSTI]

    Peter Arnold

    1997-01-28

    It has recently been argued that the rate per unit volume of baryon number violation (topological transitions) in the hot, symmetric phase of electroweak theory is of the form $\\eta \\alpha_w^5 T^4$ in the weak-coupling limit, where $\\eta$ is a non-perturbative numerical coefficient. Over the past several years, there have been attempts to extract the rate of baryon number violation from real-time simulations of classical thermal field theory on a spatial lattice. Unfortunately, the coefficient $\\eta$ will not be the same for classical lattice theories and the real quantum theory. However, by analyzing the appropriate effective theory on the lattice using the method of hard thermal loops, I show that the only obstruction to precisely relating the rates in the real and lattice theories is the fact that the long-distance physics on the lattice is not rotationally invariant. (This is unlike Euclidean-time measurements, where rotational invariance is always recovered in the continuum limit.) I then propose how this violation of rotational invariance can be eliminated - and the real B violation rate measured - by choosing an appropriate lattice Hamiltonian. I also propose a rough measure of the systematic error to be expected from using simpler, unimproved Hamiltonians. As a byproduct of my investigation, the plasma frequency and Debye mass are computed for classical thermal field theory on the lattice.

  6. Neutron-antineutron transition as a test-bed for dynamical CPT violations

    E-Print Network [OSTI]

    Andrea Addazi

    2015-08-30

    We show a simple mechanism for a dynamical CPT violation in the neutron sector. In particular, we show a {\\it CPT-violating see-saw mechanism}, generating a Majorana mass and a CPT violating mass for the neutron. CPT-violating see-saw involves a sterile partner of the neutron, living in a hidden sector, in which CPT is spontaneously broken. In particular, neutrons (antineutrons) can communicate with the hidden sector through non-perturbative quantum gravity effects called {\\it exotic instantons}. Exotic instantons dynamically break R-parity, generating one effective vertex between the neutron and its sterile partner. In this way, we show how a small CPT violating mass term for the neutron is naturally generated. This model can be tested in the next generation of experiments in neutron-antineutron physics. This strongly motivates researches of CPT-violating effects in neutron-antineutron physics, as a test-bed for dynamical CPT-violations in SM.

  7. Synchronized Independent Narrow-band Single Photons and Efficient Generation of Photonic Entanglement

    E-Print Network [OSTI]

    Zhen-Sheng Yuan; Yu-Ao Chen; Shuai Chen; Bo Zhao; Markus Koch; Thorsten Strassel; Yong Zhao; Gan-Jun Zhu; Jörg Schmiedmayer; Jian-Wei Pan

    2007-05-05

    We create independent, synchronized single-photon sources with built-in quantum memory based on two remote cold atomic ensembles. The synchronized single photons are used to demonstrate efficient generation of entanglement. The resulting entangled photon pairs violate a Bell's Inequality by 5 standard deviations. Our synchronized single photons with their long coherence time of 25 ns and the efficient creation of entanglement serve as an ideal building block for scalable linear optical quantum information processing.

  8. PDSF Job Efficiency

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

    Optimization Running Jobs Efficiently Running Jobs Efficiently Job Efficiency A job's efficiency is the ratio of its CPU time to the actual time it took to run, i.e., cputime ...

  9. SEPTEMBER 2009 ENERGY EFFICIENCY &

    E-Print Network [OSTI]

    Kammen, Daniel M.

    SEPTEMBER 2009 GUIDE TO ENERGY EFFICIENCY & RENEWABLE ENERGY FINANCING DISTRICTS FOR LOCAL Assessment Districts) DEER Database for Energy Efficient Resources DSIRE Database of State Incentives for Renewables & Efficiency EECBG Energy Efficiency and Conservation Block Grants EIM Energy Improvement Mortgage

  10. Probing CP-violating $h\\bar{t}t$ coupling in $e^{+}e^{-}\\rightarrow h ?$

    E-Print Network [OSTI]

    Gang Li; Hao-Ran Wang; Shou-hua Zhu

    2015-07-24

    We investigate the possibility of probing the CP-violating $h\\bar{t}t$ coupling in the process $e^{+}e^{-}\\rightarrow h \\gamma$ at the future high luminosity $e^{+}e^{-}$ colliders. Our numerical results show that the cross section for this process can be significantly increased for the allowed CP phase $\\xi$ and center of mass energy. For example the cross section is about 6 times of that in the standard model (SM) for $\\sqrt{s}=350~\\mathrm{GeV}$ and $\\xi =3\\pi/5$ (see text for $\\xi$ definition). The simulation for the signal process $e^{+}e^{-}\\rightarrow h \\gamma \\rightarrow b \\bar{b}\\gamma$ and its backgrounds shows that the signal significance can reach more than $4.8\\sigma$ and $2.3\\sigma$ for $\\sqrt{s}=350~\\mathrm{GeV},\\ 500~\\mathrm{GeV}$ respectively, with the integrated luminosity $\\mathcal{L}=3~\\text{ab}^{-1}$ and $\\xi\\in[\\pi/2,3\\pi/5]$. For $\\mathcal{L}=10~\\text{ab}^{-1}$, the signal significance can be greater than 5 for $\\sqrt{s}=350~\\mathrm{GeV}$ and 3.9 for $\\sqrt{s}=500~\\mathrm{GeV}$ with the CP phase $\\xi\\in[\\pi/2,3\\pi/5]$. Besides the cross section enhancement, the CP-violating $h\\bar{t}t$ coupling will induce the forward-backward asymmetry $A_{FB}$ which is absent in the SM and is a clear signal of new CP violation. Compared with the $A_{FB}$ in the Higgs decay $h\\rightarrow l^{+}l^{-}\\gamma$, the $A_{FB}$ can be greatly enhanced in the production process. For example $A_{FB}$ can reach 0.5 for $\\cos\\xi\\simeq 0.7$ and $\\sqrt{s}=500~\\mathrm{GeV}$. Due to the large backgrounds, the significance of the expected $A_{FB}$ can only be observed at $1.7\\sigma$ with $\\mathcal{L}=10~\\text{ab}^{-1}$ and $\\sqrt{s}=500~\\mathrm{GeV}$. It is essential to trigger the single photon in the final state to separate the bottom jets arising from scalar or vector bosons, in order to isolate the signal from the backgrounds more efficiently.

  11. Evidence of CP violation in B -> hhh charmless decays

    E-Print Network [OSTI]

    CERN. Geneva

    2012-01-01

    We present the first evidence of CP violation in the B+? pi+pi-pi+,  B+? K+pi+pi-, B+? K+K-pi+ and B+?K+K-K+ decays using the 1.0 fb-1 of data collected by the LHCb experiment during 2011. The results show that the 3pi and Kpipi channels present a positive asymmetry while the KKpi and KKK modes present a negative asymmetry. We also study the variation of the CP violation effects in the phase space of each three-body decay.  We find significant inhomogeneities that reveal regions with particularly large asymmetries in the pipi and KK low mass regions in B+?pi+pi-pi+ and B+?K+K-pi+ respectively.

  12. Violation of KMS condition along Rindler trajectory in polymer quantization

    E-Print Network [OSTI]

    Hossain, Golam Mortuza

    2015-01-01

    Existence of Unruh effect is often understood from the property of two-point function along Rindler trajectory where it satisfies KMS condition. In particular, it exhibits the so-called KMS periodicity along imaginary time direction. Corresponding period is then identified with reciprocal of Unruh temperature times Boltzmann constant. We show here that the two-point function including leading order perturbative corrections due to polymer quantization, the quantization method used in loop quantum gravity, violates KMS condition in low-energy regime. This violation is caused by correction terms which are not Lorentz invariants. Consequently, polymer corrected two-point function along Rindler trajectory looses its thermal interpretation. We discuss its implications on existence of Unruh effect in the context of polymer quantization.

  13. Violation of KMS condition along Rindler trajectory in polymer quantization

    E-Print Network [OSTI]

    Golam Mortuza Hossain; Gopal Sardar

    2015-05-04

    Existence of Unruh effect is often understood from the property of two-point function along Rindler trajectory where it satisfies KMS condition. In particular, it exhibits the so-called KMS periodicity along imaginary time direction. Corresponding period is then identified with reciprocal of Unruh temperature times Boltzmann constant. We show here that the two-point function including leading order perturbative corrections due to polymer quantization, the quantization method used in loop quantum gravity, violates KMS condition in low-energy regime. This violation is caused by correction terms which are not Lorentz invariants. Consequently, polymer corrected two-point function along Rindler trajectory looses its thermal interpretation. We discuss its implications on existence of Unruh effect in the context of polymer quantization.

  14. Flavor Mixing and CP Violation of Massive Neutrinos

    E-Print Network [OSTI]

    Zhi-zhong Xing

    2004-11-26

    We present an overview of recent progress in the phenomenological study of neutrino masses, lepton flavor mixing and CP violation. We concentrate on the model-independent properties of massive neutrinos, both in vacuum and in matter. Current experimental constraints on the neutrino mass spectrum and the lepton flavor mixing parameters are summarized. The Dirac- and Majorana-like phases of CP violation, which are associated respectively with the long-baseline neutrino oscillations and the neutrinoless double beta decay, are discussed in detail. The seesaw mechanism, the leptogenesis scenario and the strategies to construct lepton mass matrices are briefly described. The features of flavor mixing between one sterile neutrino and three active neutrinos are also explored.

  15. Search for Charged Lepton Violation in Narrow Upsilon Decays

    SciTech Connect (OSTI)

    Lees, J.P.; Poireau, V.; Prencipe, E.; Tisserand, V.; /Annecy, LAPP; Garra Tico, J.; Grauges, E.; /Barcelona U., ECM; Martinelli, M.; Palano, A.; Pappagallo, M.; /Bari U. /INFN, Bari; Eigen, G.; Stugu, B.; Sun, L.; /Bergen U.; Battaglia, M.; Brown, D.N.; Hooberman, B.; Kerth, L.T.; Kolomensky, Yu.G.; Lynch, G.; Osipenkov, I.L.; Tanabe, T.; /LBL, Berkeley /UC, Berkeley; Hawkes, C.M.; /Birmingham U. /Ruhr U., Bochum /British Columbia U. /Brunel U. /Novosibirsk, IYF /UC, Irvine /UC, Riverside /UC, San Diego /UC, Santa Barbara /UC, Santa Cruz /Caltech /Cincinnati U. /Colorado U. /Colorado State U. /Dortmund U. /Dresden, Tech. U. /Ecole Polytechnique /Edinburgh U. /Ferrara U. /INFN, Ferrara /Frascati /Columbus Supercond., Genova /INFN, Genoa /Indian Inst. Tech., Guwahati /Harvard U. /Heidelberg U. /Humboldt U., Berlin /Imperial Coll., London /Iowa State U. /Iowa State U. /Johns Hopkins U. /Orsay, LAL /LLNL, Livermore /Liverpool U. /Queen Mary, U. of London /Royal Holloway, U. of London /Louisville U. /Mainz U., Inst. Kernphys. /Manchester U. /Maryland U. /Massachusetts U., Amherst /MIT /McGill U. /Consorzio Milano Ricerche /INFN, Milan /Mississippi U. /Montreal U. /Napoli Seconda U. /INFN, Naples /NIKHEF, Amsterdam /Notre Dame U. /Ohio State U. /Oregon U. /Padua U. /INFN, Padua /Paris U., VI-VII /Perugia U. /INFN, Perugia /INFN, Pisa /Princeton U. /Rome U. /INFN, Rome /Rostock U. /Rutherford /DAPNIA, Saclay /SLAC /South Carolina U. /Stanford U., Phys. Dept. /SUNY, Albany /Tel Aviv U. /Tennessee U. /Texas U. /Texas U., Dallas /Turin U. /INFN, Turin /Trieste U. /INFN, Trieste /Valencia U., IFIC /Victoria U. /Warwick U. /Wisconsin U., Madison

    2011-08-19

    Charged lepton flavor violating processes are unobservable in the standard model, but they are predicted to be enhanced in several extensions to the standard model, including supersymmetry and models with leptoquarks or compositeness. We present a search for such processes in a sample of 99 x 10{sup 6} {Upsilon}(2S) decays and 117 x 10{sup 6} {Upsilon}(3S) decays collected with the BABAR detector. We place upper limits on the branching fractions {Beta}({Upsilon}(nS) {yields} e{sup {+-}}{tau}{sup {-+}}) and {Beta}({Upsilon}(nS) {yields} {mu}{sup {+-}}{tau}{sup {-+}}) (n = 2, 3) at the 10{sup -6} level and use these results to place lower limits of order 1 TeV on the mass scale of charged lepton flavor violating effective operators.

  16. A new bridge between leptonic CP violation and leptogenesis

    E-Print Network [OSTI]

    G. C. Branco; R. Gonzalez Felipe; F. R. Joaquim

    2006-09-28

    Flavor effects due to lepton interactions in the early Universe may have played an important role in the generation of the cosmological baryon asymmetry through leptogenesis. If the only source of high-energy CP violation comes from the left-handed leptonic sector, then it is possible to establish a bridge between flavored leptogenesis and low-energy leptonic CP violation. We explore this connection taking into account our present knowledge about low-energy neutrino parameters and the matter-antimatter asymmetry observed in the Universe. In this framework, we find that leptogenesis favors a hierarchical light neutrino mass spectrum, while for quasi-degenerate and inverted hierarchical neutrino masses there is a very narrow allowed window. The absolute neutrino mass scale turns out to be m < 0.1 eV.

  17. Lepton Number Violation within the Conformal Inverse Seesaw

    E-Print Network [OSTI]

    Humbert, Pascal; Patra, Sudhanwa; Smirnov, Juri

    2015-01-01

    We present a novel framework within the conformal inverse seesaw scheme allowing large lepton number violation while the neutrino mass formula is still governed by the low-scale inverse seesaw mechanism. This model includes new contributions to rare low-energy lepton number violating processes like neutrinoless double beta decay. We find that the lifetime for this rare process due to heavy sterile neutrinos can saturate current experimental limits. The characteristic collider signature of the present conformal inverse seesaw scheme includes, same-sign dilepton plus two jets and same-sign dilepton plus four jets. Finally, we comment on the testability of the model at the Large Hadron Collider since there are new scalars, new fermions and an extra neutral gauge boson with masses around few 100 GeV to few TeV.

  18. Analysis of Minimum Efficiency Performance Standards for Residential General Service Lighting in Chile

    SciTech Connect (OSTI)

    Letschert, Virginie E.; McNeil, Michael A.; Leiva Ibanez, Francisco Humberto; Ruiz, Ana Maria; Pavon, Mariana; Hall, Stephen

    2011-06-01

    Minimum Efficiency Performance Standards (MEPS) have been chosen as part of Chile's national energy efficiency action plan. As a first MEPS, the Ministry of Energy has decided to focus on a regulation for lighting that would ban the sale of inefficient bulbs, effectively phasing out the use of incandescent lamps. Following major economies such as the US (EISA, 2007) , the EU (Ecodesign, 2009) and Australia (AS/NZS, 2008) who planned a phase out based on minimum efficacy requirements, the Ministry of Energy has undertaken the impact analysis of a MEPS on the residential lighting sector. Fundacion Chile (FC) and Lawrence Berkeley National Laboratory (LBNL) collaborated with the Ministry of Energy and the National Energy Efficiency Program (Programa Pais de Eficiencia Energetica, or PPEE) in order to produce a techno-economic analysis of this future policy measure. LBNL has developed for CLASP (CLASP, 2007) a spreadsheet tool called the Policy Analysis Modeling System (PAMS) that allows for evaluation of costs and benefits at the consumer level but also a wide range of impacts at the national level, such as energy savings, net present value of savings, greenhouse gas (CO2) emission reductions and avoided capacity generation due to a specific policy. Because historically Chile has followed European schemes in energy efficiency programs (test procedures, labelling program definitions), we take the Ecodesign commission regulation No 244/2009 as a starting point when defining our phase out program, which means a tiered phase out based on minimum efficacy per lumen category. The following data were collected in order to perform the techno-economic analysis: (1) Retail prices, efficiency and wattage category in the current market, (2) Usage data (hours of lamp use per day), and (3) Stock data, penetration of efficient lamps in the market. Using these data, PAMS calculates the costs and benefits of efficiency standards from two distinct but related perspectives: (1) The Life-Cycle Cost (LCC) calculation examines costs and benefits from the perspective of the individual household; and (2) The National Perspective projects the total national costs and benefits including both financial benefits, and energy savings and environmental benefits. The national perspective calculations are called the National Energy Savings (NES) and the Net Present Value (NPV) calculations. PAMS also calculate total emission mitigation and avoided generation capacity. This paper describes the data and methodology used in PAMS and presents the results of the proposed phase out of incandescent bulbs in Chile.

  19. A Short Guide to Flavour Physics and CP Violation

    E-Print Network [OSTI]

    Seung J. Lee; Hugo Serôdio

    2015-04-28

    We present the invited lectures given at the second Asia-Europe-Pacific School of High-Energy Physics (AEPSHEP), which took place in Puri, India in November 2014. The series of lectures aimed at graduate students in particle experiment/theory, covering the very basics of flavor physics and CP violation, some useful theoretical methods such as OPE and effective field theories, and some selected topics of flavour physics in the era of LHC.

  20. Violation of the Holographic Principle in the Loop Quantum Gravity

    E-Print Network [OSTI]

    Ozan Sarg?n; Mir Faizal

    2015-09-01

    In this paper, we analyze the holographic principle using loop quantum gravity (LQG). This will be done by analysing a simple quantum mechanical system using polymeric quantization. As the polymeric quantization is the characteristic feature of loop quantum gravity, we will argue that this calculation will indicate the effect on the holographic principle from the loop quantum gravity. Thus, we will be able to explicitly demonstrate the violation of the holographic principle in the loop quantum gravity.

  1. Isospin-violating dark matter from a double portal

    SciTech Connect (OSTI)

    Bélanger, Geneviève; Goudelis, Andreas; Park, Jong-Chul; Pukhov, Alexander E-mail: andreas.goudelis@lapth.cnrs.fr E-mail: pukhov@lapth.cnrs.fr

    2014-02-01

    We study a simple model that can give rise to isospin-violating interactions of Dirac fermion asymmetric dark matter to protons and neutrons through the interference of a scalar and U(1)' gauge boson contribution. The model can yield a large suppression of the elastic scattering cross section off Xenon relative to Silicon thus reconciling CDMS-Si and LUX results while being compatible with LHC findings on the 126 GeV Higgs, electroweak precision tests and flavour constraints.

  2. Neutron-Antineutron Oscillation as a Signal of CP Violation

    E-Print Network [OSTI]

    Zurab Berezhiani; Arkady Vainshtein

    2015-08-02

    Assuming the Lorentz and CPT invariances we show that neutron-antineutron oscillation implies breaking of CP along with baryon number violation -- i.e. two of Sakharov conditions for baryogenesis. The oscillation is produced by the unique operator in the effective Hamiltonian. This operator mixing neutron and antineutron preserves charge conjugation C and breaks P and T. External magnetic field always leads to suppression of oscillations. Its presence does not lead to any new operator mixing neutron and antineutron.

  3. A Short Guide to Flavour Physics and CP Violation

    E-Print Network [OSTI]

    Lee, Seung J

    2015-01-01

    We present the invited lectures given at the second Asia-Europe-Pacific School of High-Energy Physics (AEPSHEP), which took place in Puri, India in November 2014. The series of lectures aimed at graduate students in particle experiment/theory, covering the very basics of flavor physics and CP violation, some useful theoretical methods such as OPE and effective field theories, and some selected topics of flavour physics in the era of LHC.

  4. CP violation in the B0s system

    E-Print Network [OSTI]

    S. Donati

    2007-07-06

    In this paper the most recent Tevatron results concerning CP violation in the B0s system are reviewed. These are the measurement of the direct CP asymmetry in the B0s->K-\\pi+ decay performed by CDF and the measurement of \\Delta\\Gamma_s and \\phi_s performed by D0 in the B0s->J/\\psi\\phi decay.

  5. Statistical Constraints on the Error of the Leptonic CP Violation of Neutrinos

    E-Print Network [OSTI]

    Fu, Kai

    2015-01-01

    A constraint on the error of leptonic CP violation, which require the phase $\\delta_{CP}$ to be less than $\\pi/4$ for it to be distinguishable on a $2\\pi$ cycle, is presented. Under this constraint, the effects of neutrino detector 's distance, beam energy, and energy resolution are discussed with reference to the present values of these parameters in experiments. Although an optimized detector performances can minimize the deviation to yield a larger distinguishable range of the leptonic CP phase on a $2\\pi$ cycle, it is not possible to determine an arbitrary leptonic CP phase in the range of $2\\pi$ with the statistics from a single detector because of the existence of two singular points. An efficiency factor $\\eta$ is defined to characterize the distinguishable range of $\\delta_{CP}$. To cover the entire possible $\\delta_{CP}$ range, a combined efficiency factor $\\eta^*$ corresponding to multiple sets of detection parameters with different neutrino beam energies and distances is proposed. The combined effi...

  6. Survey of lepton number violation via effective operators

    SciTech Connect (OSTI)

    Gouvea, Andre de; Jenkins, James [Northwestern University, Department of Physics and Astronomy, 2145 Sheridan Road, Evanston, Illinois 60208 (United States)

    2008-01-01

    We survey 129 lepton number violating effective operators, consistent with the minimal standard model gauge group and particle content, of mass dimension up to and including 11. Upon requiring that each one radiatively generates the observed neutrino masses, we extract an associated characteristic cutoff energy scale which we use to calculate other observable manifestations of these operators for a number of current and future experimental probes, concentrating on lepton number violating phenomena. These include searches for neutrinoless double-beta decay and rare meson, lepton, and gauge boson decays. We also consider searches at hadron/lepton collider facilities in anticipation of the CERN LHC and the future ILC. We find that some operators are already disfavored by current data, while more are ripe to be probed by next-generation experiments. We also find that our current understanding of lepton mixing disfavors a subset of higher dimensional operators. While neutrinoless double-beta decay is the most promising signature of lepton number violation for the majority of operators, a handful is best probed by other means. We argue that a combination of constraints from various independent experimental sources will help to pinpoint the ''correct'' model of neutrino mass, or at least aid in narrowing down the set of possibilities.

  7. Models of Neutrino Mass, Mixing and CP Violation

    E-Print Network [OSTI]

    Stephen F. King

    2015-10-07

    In this topical review we argue that neutrino mass and mixing data motivates extending the Standard Model to include a non-Abelian discrete flavour symmetry in order to accurately predict the large leptonic mixing angles and CP violation. We begin with an overview of the Standard Model puzzles, followed by a description of some classic lepton mixing patterns. Lepton mixing may be regarded as a deviation from tri-bimaximal mixing, with charged lepton corrections leading to solar mixing sum rules, or tri-maximal lepton mixing leading to atmospheric mixing rules. We survey neutrino mass models, using a roadmap based on the open questions in neutrino physics. We then focus on the seesaw mechanism with right-handed neutrinos, where sequential dominance (SD) can account for large lepton mixing angles and CP violation, with precise predictions emerging from constrained SD (CSD). We define the flavour problem and discuss progress towards a theory of flavour using GUTs and discrete family symmetry. We classify models as direct, semidirect or indirect, according to the relation between the Klein symmetry of the mass matrices and the discrete family symmetry, in all cases focussing on spontaneous CP violation. Finally we give two examples of realistic and highly predictive indirect models with CSD, namely an A to Z of flavour with Pati-Salam and a fairly complete $A_4\\times SU(5)$ SUSY GUT of flavour, where both models have interesting implications for leptogenesis.

  8. CP violation conditions in N-Higgs-doublet potentials

    E-Print Network [OSTI]

    C. C. Nishi

    2007-10-26

    Conditions for CP violation in the scalar potential sector of general N-Higgs-doublet models (NHDMs) are analyzed from a group theoretical perspective. For the simplest two-Higgs-doublet model (2HDM) potential, a minimum set of conditions for explicit and spontaneous CP violation is presented. The conditions can be given a clear geometrical interpretation in terms of quantities in the adjoint representation of the basis transformation group for the two doublets. Such conditions depend on CP-odd pseudoscalar invariants. When the potential is CP invariant, the explicit procedure to reach the real CP-basis and the explicit CP transformation can also be obtained. The procedure to find the real basis and the conditions for CP violation are then extended to general NHDM potentials. The analysis becomes more involved and only a formal procedure to reach the real basis is found. Necessary conditions for CP invariance can still be formulated in terms of group invariants: the CP-odd generalized pseudoscalars. The problem can be completely solved for three Higgs-doublets.

  9. Models of Neutrino Mass, Mixing and CP Violation

    E-Print Network [OSTI]

    Stephen F. King

    2015-11-11

    In this topical review we argue that neutrino mass and mixing data motivates extending the Standard Model to include a non-Abelian discrete flavour symmetry in order to accurately predict the large leptonic mixing angles and CP violation. We begin with an overview of the Standard Model puzzles, followed by a description of some classic lepton mixing patterns. Lepton mixing may be regarded as a deviation from tri-bimaximal mixing, with charged lepton corrections leading to solar mixing sum rules, or tri-maximal lepton mixing leading to atmospheric mixing rules. We survey neutrino mass models, using a roadmap based on the open questions in neutrino physics. We then focus on the seesaw mechanism with right-handed neutrinos, where sequential dominance (SD) can account for large lepton mixing angles and CP violation, with precise predictions emerging from constrained SD (CSD). We define the flavour problem and discuss progress towards a theory of flavour using GUTs and discrete family symmetry. We classify models as direct, semidirect or indirect, according to the relation between the Klein symmetry of the mass matrices and the discrete family symmetry, in all cases focussing on spontaneous CP violation. Finally we give two examples of realistic and highly predictive indirect models with CSD, namely an A to Z of flavour with Pati-Salam and a fairly complete $A_4\\times SU(5)$ SUSY GUT of flavour, where both models have interesting implications for leptogenesis.

  10. Entergy Arkansas- Agricultural Energy Solutions Program Rebates

    Broader source: Energy.gov [DOE]

    The Presecriptive Option offers predetermined incentives on a wide variety of energy efficiency measures including Compact Flourescent Light Bulbs and high performance flourescent bulb replacemen...

  11. Tax Credits, Rebates & Savings | Department of Energy

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

    install energy efficiency measures in Xcel service territory. Rebates are available for evaporative cooling systems, LED light bulbs, and CFL light bulbs. All equipment must meet...

  12. Achieving Extreme Efficiency: How to get the job done when energy is extremely expensive and scarce

    E-Print Network [OSTI]

    Brown, Rich

    2013-01-01

    LED) bulbs, organic LED (OLED) lighting fixtures, ceramicLED lamps in this application long before this technology was cost-effective for general-purpose lighting.

  13. Energy Efficiency Indicators Methodology Booklet

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    Intensity versus Efficiency Energy efficiency indicators areOffice for Energy Efficiency) energy efficiency index whichof Energy Use and Energy Efficiency. Understanding the Link

  14. Quantum nonlocality with arbitrary limited detection efficiency

    E-Print Network [OSTI]

    Gilles Pütz; Nicolas Gisin

    2015-07-17

    The demonstration and use of nonlocality, as defined by Bell's theorem, rely strongly on dealing with non-detection events due to losses and detector inefficiencies. Otherwise, the so-called detection loophole could be exploited. The only way to avoid this is to have detection efficiencies that are above a certain threshold. We introduce the intermediate assumption of limited detection efficiency, e.g. in each run of the experiment the overall detection efficiency is lower bounded by $\\eta_{min} > 0$. Hence, in an adversarial scenario, the adversaries have arbitrary large but not full control over the inefficiencies. We analyze the set of possible correlations that fulfil Limited Detection Locality (LDL) and show that they necessarily satisfy some linear Bell-like inequalities. We prove that quantum theory predicts violation of one of these inequalities for all $\\eta_{min} > 0$. Hence, nonlocality can be demonstrated with arbitrarily small limited detection efficiencies. Finally we propose a generalized scheme that uses this characterization to deal with detection inefficiencies, which interpolates between the two usual schemes, postselection and outcome assignment.

  15. High Efficiency, Illumination Quality OLEDs for Lighting

    SciTech Connect (OSTI)

    Joseph Shiang; James Cella; Kelly Chichak; Anil Duggal; Kevin Janora; Chris Heller; Gautam Parthasarathy; Jeffery Youmans; Joseph Shiang

    2008-03-31

    The goal of the program was to demonstrate a 45 lumen per watt white light device based upon the use of multiple emission colors through the use of solution processing. This performance level is a dramatic extension of the team's previous 15 LPW large area illumination device. The fundamental material system was based upon commercial polymer materials. The team was largely able to achieve these goals, and was able to deliver to DOE a 90 lumen illumination source that had an average performance of 34 LPW a 1000 cd/m{sup 2} with peak performances near 40LPW. The average color temperature is 3200K and the calculated CRI 85. The device operated at a brightness of approximately 1000cd/m{sup 2}. The use of multiple emission colors particularly red and blue, provided additional degrees of design flexibility in achieving white light, but also required the use of a multilayered structure to separate the different recombination zones and prevent interconversion of blue emission to red emission. The use of commercial materials had the advantage that improvements by the chemical manufacturers in charge transport efficiency, operating life and material purity could be rapidly incorporated without the expenditure of additional effort. The program was designed to take maximum advantage of the known characteristics of these material and proceeded in seven steps. (1) Identify the most promising materials, (2) assemble them into multi-layer structures to control excitation and transport within the OLED, (3) identify materials development needs that would optimize performance within multilayer structures, (4) build a prototype that demonstrates the potential entitlement of the novel multilayer OLED architecture (5) integrate all of the developments to find the single best materials set to implement the novel multilayer architecture, (6) further optimize the best materials set, (7) make a large area high illumination quality white OLED. A photo of the final deliverable is shown. In 2003, a large area, OLED based illumination source was demonstrated that could provide light with a quality, quantity, and efficiency on par with what can be achieved with traditional light sources. The demonstration source was made by tiling together 16 separate 6-inch x 6-inch blue-emitting OLEDs. The efficiency, total lumen output, and lifetime of the OLED based illumination source were the same as what would be achieved with an 80 watt incandescent bulb. The devices had an average efficacy of 15 LPW and used solution-processed OLEDs. The individual 6-inch x 6-inch devices incorporated three technology strategies developed specifically for OLED lighting -- downconversion for white light generation, scattering for outcoupling efficiency enhancement, and a scalable monolithic series architecture to enable large area devices. The downconversion approach consists of optically coupling a blue-emitting OLED to a set of luminescent layers. The layers are chosen to absorb the blue OLED emission and then luminescence with high efficiency at longer wavelengths. The composition and number of layers are chosen so that the unabsorbed blue emission and the longer wavelength re-emission combine to make white light. A downconversion approach has the advantage of allowing a wide variety of colors to be made from a limited set of blue emitters. In addition, one does not have to carefully tune the emission wavelength of the individual electro-luminescent species within the OLED device in order to achieve white light. The downconversion architecture used to develop the 15LPW large area light source consisted of a polymer-based blue-emitting OLED and three downconversion layers. Two of the layers utilized perylene based dyes from BASF AG of Germany with high quantum efficiency (>98%) and one of the layers consisted of inorganic phosphor particles (Y(Gd)AG:Ce) with a quantum efficiency of {approx}85%. By independently varying the optical density of the downconversion layers, the overall emission spectrum could be adjusted to maximize performance for lighting (e.g. blackbody temp

  16. Energy Efficiency ISSN 1570-646X

    E-Print Network [OSTI]

    Illinois at Chicago, University of

    ConEd Consolidated Edison CRT Cathode ray tube LCD Liquid crystal display LED Light emitting diode included combustion, incandescent and compact fluorescent (CFL) bulbs, and now light emitting diode (LED emitting diodes (LED), has been sug- gested as a way of reducing energy used for lighting. Such predictions

  17. Financial Management of Money Received from Persons Who Have Allegedly Violated Department of Energy Regulations

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1981-05-11

    To establish the policy, objectives, procedures, and responsibilities for the financial management of monies received from persons who have allegedly violated or who have violated the Department of Energy price and allocation regulations. Cancels HQ 2100.1, Financial Management of Money Received From Persons Who Have Allegedly Violated Department of Energy Regulations, dated 2-2-1981. Cancels HQ 2100.1. Canceled by DOE O 1321.140, dated 5-20-1994.

  18. Estimating matter induced CPT violation in Long-Baseline Neutrino Experiments

    E-Print Network [OSTI]

    Monika Randhawa; Mandip Singh; Manmohan Gupta

    2014-12-16

    We examine matter induced CPT violation effects in long baseline electron neutrino appearance experiments in a low energy neutrino factory setup. Assuming CPT invariance in vacuum, the magnitude of CPT violating asymmetry in matter has been estimated using the exact expressions for the transition probabilities. The dependence of the asymmetry on the oscillation parameters like mixing angles, mass squared differences as well as on the Dirac CP violating phase has been investigated.

  19. CP violation of Extended Higgs sector and Its impact on D^0 -> mu^+ mu^- decay

    E-Print Network [OSTI]

    Daiji Kimura; Kang Young Lee; Takuya Morozumi

    2012-06-15

    We study the impact of the CP violation of the extra Higgs sector on $D^0$ decay. The CP even and CP odd neutral Higgs mixing of the two Higgs doublet model is studied and we show how the CP violating effect of the mixing may lead to the longitudinal muon polarization asymmetry of $D^0 \\to \\mu^+ \\mu^-$. The asymmetry of the short-distance contribution is sensitive to the CP violating phase of the extended Higgs sector.

  20. The role of CP violating scatterings in baryogenesis—case study of the neutron portal

    SciTech Connect (OSTI)

    Baldes, Iason; Bell, Nicole F.; Millar, Alexander; Volkas, Raymond R.; Petraki, Kalliopi E-mail: n.bell@unimelb.edu.au E-mail: kpetraki@nikhef.nl

    2014-11-01

    Many baryogenesis scenarios invoke the charge parity (CP) violating out-of-equilibrium decay of a heavy particle in order to explain the baryon asymmetry. Such scenarios will in general also allow CP violating scatterings. We study the effect of these CP violating scatterings on the final asymmetry in a neutron portal scenario. We solve the Boltzmann equations governing the evolution of the baryon number numerically and show that the CP violating scatterings play a dominant role in a significant portion of the parameter space.

  1. The role of CP violating scatterings in baryogenesis - case study of the neutron portal

    E-Print Network [OSTI]

    Iason Baldes; Nicole F. Bell; Alexander Millar; Kalliopi Petraki; Raymond R. Volkas

    2014-11-28

    Many baryogenesis scenarios invoke the charge parity (CP) violating out-of-equilibrium decay of a heavy particle in order to explain the baryon asymmetry. Such scenarios will in general also allow CP violating scatterings. We study the effect of these CP violating scatterings on the final asymmetry in a neutron portal scenario. We solve the Boltzmann equations governing the evolution of the baryon number numerically and show that the CP violating scatterings play a dominant role in a significant portion of the parameter space.

  2. Exclusive $B \\to PV $ Decays and CP Violation in the General two-Higgs-doublet Model

    E-Print Network [OSTI]

    Wu, Y L; 10.1103/PhysRevD.75.115006

    2008-01-01

    We calculate all the branching ratios and direct CP violations of $B \\to PV$ decays in a most general two-Higgs-doublet model with spontaneous CP violation. As the model has rich CP-violating sources, it is shown that the new physics effects to direct CP violations and branching ratios in some channels can be significant when adopting the generalized factorization approach to evaluate the hadronic matrix elements, which provides good signals for probing new physics beyond the SM in the future B experiments.

  3. Exclusive $B \\to PV $ Decays and CP Violation in the General two-Higgs-doublet Model

    E-Print Network [OSTI]

    Y. L. Wu; C. Zhuang

    2007-01-10

    We calculate all the branching ratios and direct CP violations of $B \\to PV$ decays in a most general two-Higgs-doublet model with spontaneous CP violation. As the model has rich CP-violating sources, it is shown that the new physics effects to direct CP violations and branching ratios in some channels can be significant when adopting the generalized factorization approach to evaluate the hadronic matrix elements, which provides good signals for probing new physics beyond the SM in the future B experiments.

  4. Violation of the Energy Conservation Law in Lorentz-Dirac Equations for More Than One Charge

    E-Print Network [OSTI]

    Danilo Villarroel; Rodrigo Rivera

    1994-12-30

    An exact solution of Lorentz-Dirac equations where the energy conservation law is violated, is described herein for the case of two charges.

  5. Analysing the Effect on CMB in a Parity and Charge Parity Violating...

    Office of Scientific and Technical Information (OSTI)

    a PCP violating parameter, beta, and a scale of alpha variation omega. Using the derived constrained on the photon-to-scalar conversion probability, bar Psub...

  6. Energy Efficient Motors 

    E-Print Network [OSTI]

    Hoffmeyer, W.

    1982-01-01

    Efficiency is only one aspect of motor performance. This paper discusses how efficiency is influenced by such factors as horsepower rating, poles, actual load, and starting requirements. It discusses some of the variables affecting efficiency...

  7. SM Energy-Efficient

    E-Print Network [OSTI]

    SM 111 Energy-Efficient Energy-Efficient Ventilation for Apartment Buildings #12. These Guides provide clear and practical information on issues related to energy-efficient building retrofits

  8. Energy Efficient Digital Networks

    E-Print Network [OSTI]

    Lanzisera, Steven

    2014-01-01

    2007. Enabling an Energy-Efficient Future Internet ThroughIEEE 802.3az: The Road to Energy Efficient Ethernet. IEEEPHY Compliant With New Energy Efficient Ethernet Guidelines;

  9. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy An Introduction to the 2010 Fuel Cell Pre a d t ade o a to educe Advancing Presidential Priorities Energy efficiency and renewable energy, cleanest, Recovery Act energy projectsfastest energy source ­ energy efficiency · Double renewable energy

  10. Projected Constraints on Lorentz-Violating Gravity with Gravitational Waves

    E-Print Network [OSTI]

    Devin Hansen; Nicolas Yunes; Kent Yagi

    2014-12-12

    Gravitational waves are excellent tools to probe the foundations of General Relativity in the strongly dynamical and non-linear regime. One such foundation is Lorentz symmetry, which can be broken in the gravitational sector by the existence of a preferred time direction, and thus, a preferred frame at each spacetime point. This leads to a modification in the orbital decay rate of binary systems, and also in the generation and chirping of their associated gravitational waves. We here study whether waves emitted in the late, quasi-circular inspiral of non-spinning, neutron star binaries can place competitive constraints on two proxies of gravitational Lorentz-violation: Einstein-\\AE{}ther theory and khronometric gravity. We model the waves in the small-coupling (or decoupling) limit and in the post-Newtonian approximation, by perturbatively solving the field equations in small deformations from General Relativity and in the small-velocity/weak-gravity approximation. We assume a gravitational wave consistent with General Relativity has been detected with second- and third-generation, ground-based detectors, and with the proposed space-based mission, DECIGO, with and without coincident electromagnetic counterparts. Without a counterpart, a detection consistent with General Relativity of neutron star binaries can only place competitive constraints on gravitational Lorentz violation when using future, third-generation or space-based instruments. On the other hand, a single counterpart is enough to place constraints that are 10 orders of magnitude more stringent than current binary pulsar bounds, even when using second-generation detectors. This is because Lorentz violation forces the group velocity of gravitational waves to be different from that of light, and this difference can be very accurately constrained with coincident observations.

  11. Lighting a building with a single bulb : toward a system for illumination in the 21st c.; or, A centralized illumination system for the efficient decoupling and recovery of lighting related heat

    E-Print Network [OSTI]

    Levens, Kurt Antony, 1961-

    1997-01-01

    Piping light represents the first tenable method for recovery and reutilization of lighting related heat. It can do this by preserving the energy generated at the lamp as radiative, departing from precedent and avoiding ...

  12. Beamline Instrumentation for Future Parity-Violation Experiments

    E-Print Network [OSTI]

    Robert Michaels

    2014-10-16

    The parity-violating electron scattering community has made tremendous progress over the last twenty five years in their ability to measure tiny asymmetries of order 100 parts per billion (ppb) with beam-related corrections and systematic errors of a few ppb. Future experiments are planned for about an order of magnitude smaller asymmetries and with higher rates in the detectors. These new experiments pose new challenges for the beam instrumentation and for the strategy for setting up the beam. In this contribution to PAVI14 I discuss several of these challenges and demands, with a focus on developments at Jefferson Lab.

  13. CP Violation and the Baryonic Asymmetry of the Universe

    E-Print Network [OSTI]

    Glennys Farrar

    1995-02-16

    The physics of electroweak baryogenesis is described with the aim of making the essentials clear to non-experts. Several models for the source of the necessary CP violation are discussed: CKM phases as in the minimal standard model, general two higgs doublet models, the supersymmetric standard model, $Z$ condensates, and the singlet majoron model. In a more technical section, a strategy is introduced for consistently treating quark dynamics in the neighborhood of the bubble wall, where both local and non-local interactions are important. This provides a method for deciding whether gluonic corrections wash out the elecroweak contribution to the baryonic asymmetry in the minimal standard model.

  14. Observation of parity violation in the Omega- ---> Lambda K- decay

    SciTech Connect (OSTI)

    Lu, L.C.; /Virginia U.; Burnstein, R.A.; Chakravorty, A.; Chen, Y.C.; Choong, W.-S.; Clark, K.; Dukes, E.C.; Durandet, C.; Felix, J.; Fu, Y.; Gidal, G.; Gustafson, H.R.; Holmstrom, T.; Huang, M.; James, C.; Jenkins, C.M.; Jones, T.D.; Kaplan, D.M.; Longo, M.J.; Luebke, W.; Luk, K.-B.; /Taiwan, Inst. Phys. /UC, Berkeley /Fermilab /Guanajuato U./IIT, Chicago /Lausanne U. /LBL, Berkeley /Michigan U. /South Alabama U. /Virginia U.; ,

    2005-05-01

    The {alpha} decay parameter in the process {Omega}{sup -} {yields} {Lambda}K{sup -} has been measured from a sample of 4.50 million unpolarized {Omega}{sup -} decays recorded by the HyperCP (E871) experiment at Fermilab and found to be [1.78 {+-} 0.19(stat) {+-} 0.16(syst)] x 10{sup -2}. This is the first unambiguous evidence for a nonzero {alpha} decay parameter, and hence parity violation, in the {Omega}{sup -} {Lambda}K{sup -} decay.

  15. On the Potential of Leptonic Minimal Flavour Violation

    E-Print Network [OSTI]

    R. Alonso; M. B. Gavela; D. Hernández; L. Merlo

    2012-07-29

    Minimal Flavour Violation can be realized in several ways in the lepton sector due to the possibility of Majorana neutrino mass terms. We derive the scalar potential for the fields whose background values are the Yukawa couplings, for the simplest See-Saw model with just two right-handed neutrinos, and explore its minima. The Majorana character plays a distinctive role: the minimum of the potential allows for large mixing angles -in contrast to the simplest quark case- and predicts a maximal Majorana phase. This points in turn to a strong correlation between neutrino mass hierarchy and mixing pattern.

  16. Gamma Ray Burst Constraints on Ultraviolet Lorentz Invariance Violation

    E-Print Network [OSTI]

    Tina Kahniashvili; Grigol Gogoberidze; Bharat Ratra

    2006-10-20

    We present a unified general formalism for ultraviolet Lorentz invariance violation (LV) testing through electromagnetic wave propagation, based on both dispersion and rotation measure data. This allows for a direct comparison of the efficacy of different data to constrain LV. As an example we study the signature of LV on the rotation of the polarization plane of $\\gamma$-rays from gamma ray bursts in a LV model. Here $\\gamma$-ray polarization data can provide a strong constraint on LV, 13 orders of magnitude more restrictive than a potential constraint from the rotation of the cosmic microwave background polarization proposed by Gamboa, L\\'{o}pez-Sarri\\'{o}n, and Polychronakos (2006).

  17. Symmetry violations in nuclear and neutron $\\beta$ decay

    E-Print Network [OSTI]

    Vos, K K; Timmermans, R G E

    2015-01-01

    The role of $\\beta$ decay as a low-energy probe of physics beyond the Standard Model is reviewed. Traditional searches for deviations from the Standard Model structure of the weak interaction in $\\beta$ decay are discussed in the light of constraints from the LHC and the neutrino mass. Limits on the violation of time-reversal symmetry in $\\beta$ decay are compared to the strong constraints from electric dipole moments. Novel searches for Lorentz symmetry breaking in the weak interaction in $\\beta$ decay are also included, where we discuss the unique sensitivity of $\\beta$ decay to test Lorentz invariance. We end with a roadmap for future $\\beta$-decay experiments.

  18. Transformative A_4 Mixing of Neutrinos with CP Violation

    E-Print Network [OSTI]

    Ernest Ma

    2015-08-25

    A new theoretical insight into the pattern of neutrino mixing and leptonic $CP$ violation is presented. It leads naturally and uniquely to a specific dark sector of three real neutral scalar singlets, with the radiative implementation of the inverse seesaw mechanism for neutrino mass. The new simple but crucial enabling idea is that a familiar $A_4$ transformation turns any orthogonal $3 \\times 3$ matrix into one which predicts $\\theta_{23} = \\pi/4$ and $\\delta_{CP} = \\pm \\pi/2$ for the neutrino mixing matrix, in good agreement with present data.

  19. Electrically-Charged Lifshitz Spacetimes, and Hyperscaling Violations

    E-Print Network [OSTI]

    Zhong-Ying Fan; H. Lu

    2015-01-21

    Electrically-charged Lifshitz spacetimes are hard to come by. In this paper, we construct a class of such solutions in five dimensional Einstein gravity coupled to Maxwell and $SU(2)$ Yang-Mills fields. The solutions are electrically-charged under the Maxwell field, whose equation is sourced by the Yang-Mills instanton(-like) configuration living in the hyperbolic four-space of the Lifshitz spacetime. We then introduce a dilaton and construct charged and colored Lifshitz spacetimes with hyperscaling violations. We obtain a class of exact Lifshitz black holes. We also perform similar constructions in four dimensions.

  20. Basis invariant measure of CP-violation and renormalization

    E-Print Network [OSTI]

    A. Hohenegger; A. Kartavtsev

    2014-12-27

    We analyze, in the context of a simple toy model, for which renormalization schemes the CP-properties of bare Lagrangian and its finite part coincide. We show that this is the case for the minimal subtraction and on-shell schemes. The CP-properties of the theory can then be characterized by CP-odd basis invariants expressed in terms of renormalized masses and couplings. For the minimal subtraction scheme we furthermore show that in CP-conserving theories the CP-odd basis invariants are zero at any scale but are not renormalization group invariant in CP-violating ones.

  1. DOE Cites Battelle Memorial Institute for Price-Anderson Violations |

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electric vehicle10 DOEEnvironmental Management | Department0,Violations

  2. Water Efficiency Goal Guidance

    Broader source: Energy.gov [DOE]

    The Council on Environmental Quality (CEQ) issued water efficiency goal guidance in Federal Agency Implementation of Water Efficiency and Management Provisions of Executive Order 13514. This...

  3. Energy Efficiency Links

    U.S. Energy Information Administration (EIA) Indexed Site

    Energy Efficiency Organizations Energy Efficiency Organizations Release Date: October 1999 Last Updated: Septembert 2009 EIA Links Disclaimer: These pages contain hypertext links...

  4. Energy Efficiency -- Home Page

    U.S. Energy Information Administration (EIA) Indexed Site

    If you are having trouble, call 202-586-8800 for help. Home >Energy Users EEnergy Efficiency Page Energy-Efficiency Measurement MEASUREMENT DISCUSSION: Measures and Policy Issues...

  5. Synchrotron and Inverse Compton Constraints on Lorentz Violations for Electrons

    E-Print Network [OSTI]

    Brett Altschul

    2006-08-31

    We present a method for constraining Lorentz violation in the electron sector, based on observations of the photons emitted by high-energy astrophysical sources. The most important Lorentz-violating operators at the relevant energies are parameterized by a tensor c^{nu mu) with nine independent components. If c is nonvanishing, then there may be either a maximum electron velocity less than the speed of light or a maximum energy for subluminal electrons; both these quantities will generally depend on the direction of an electron's motion. From synchrotron radiation, we may infer a lower bound on the maximum velocity, and from inverse Compton emission, a lower bound on the maximum subluminal energy. With observational data for both these types of emission from multiple celestial sources, we may then place bounds on all nine of the coefficients that make up c. The most stringent bound, on a certain combination of the coefficients, is at the 6 x 10^(-20) level, and bounds on the coefficients individually range from the 7 x 10^(-15) level to the 2 x 10^(-17) level. For most of the coefficients, these are the most precise bounds available, and with newly available data, we can already improve over previous bounds obtained by the same methods.

  6. Spontaneous Lorentz and diffeomorphism violation, massive modes, and gravity

    SciTech Connect (OSTI)

    Bluhm, Robert; Fung Shuhong; Kostelecky, V. Alan

    2008-03-15

    Theories with spontaneous local Lorentz and diffeomorphism violation contain massless Nambu-Goldstone modes, which arise as field excitations in the minimum of the symmetry-breaking potential. If the shape of the potential also allows excitations above the minimum, then an alternative gravitational Higgs mechanism can occur in which massive modes involving the metric appear. The origin and basic properties of the massive modes are addressed in the general context involving an arbitrary tensor vacuum value. Special attention is given to the case of bumblebee models, which are gravitationally coupled vector theories with spontaneous local Lorentz and diffeomorphism violation. Mode expansions are presented in both local and spacetime frames, revealing the Nambu-Goldstone and massive modes via decomposition of the metric and bumblebee fields, and the associated symmetry properties and gauge fixing are discussed. The class of bumblebee models with kinetic terms of the Maxwell form is used as a focus for more detailed study. The nature of the associated conservation laws and the interpretation as a candidate alternative to Einstein-Maxwell theory are investigated. Explicit examples involving smooth and Lagrange-multiplier potentials are studied to illustrate features of the massive modes, including their origin, nature, dispersion laws, and effects on gravitational interactions. In the weak static limit, the massive mode and Lagrange-multiplier fields are found to modify the Newton and Coulomb potentials. The nature and implications of these modifications are examined.

  7. Mixing and CP Violation in Charm Meson Decays

    SciTech Connect (OSTI)

    Meadows, B; /Cincinnati U.

    2010-08-26

    Mixing and CP violation (CPV ) in the neutral D system were first discussed over thirty years ago but mixing was observed for the first time only very recently. Since then, these observations have been confirmed in other experiments and in other D{sup 0} decay modes. Unlike the K, B and B{sub s} systems, for which mixing was observed years earlier, the short distance ({Delta}C = 2) amplitude contributing to mixing in the D system arises from box diagrams with down- rather than up-type quarks in the loops. The d and s components are GIM-suppressed, and the b component is suppressed by the small V{sub ub} CKM coupling. In the standard model (SM), therefore, long range, non-perturbative effects, a coherent sum over intermediate states accessible to both D{sup 0} and {bar D}{sup 0}, are the main contribution to mixing. These are hard to compute reliably, however. The phenomenon of mixing in neutral meson systems has now been observed in all flavours, but only in the past year in the D{sup 0} system. The standard model anticipated that, for the charm sector, the mixing rate would be small, and also that CP violation, either in mixing or in direct decay, would be below the present levels of observability. It is hoped that further study of these phenomena might reveal signs of new physics. A review of recently available, experimental results is given.

  8. Clauser-Horne/Eberhard inequality violation by a local model

    E-Print Network [OSTI]

    Donald A. Graft

    2015-08-10

    The Clauser-Horne/Eberhard inequality has taken center stage in tests of locality thanks to its immunity to the detection loophole. I describe a local model that violates the inequality using a plausible mechanism relying upon a parameter of the apparatus, the emission rate. The effect is generated through the analysis of time-tagged data using a standard windowed coincidence method; however, the detection times are not functions of the measurement settings. The analysis does not introduce the nonlocal behavior typical of previous coincidence window models. This finding has implications for the design and interpretation of experiments, as it shows that the coincidence window loophole cannot be eliminated by a demonstration of independence of the detection times and settings. The paper describes a reliable coincidence counting method and shows that it delivers an accurate count of true coincidences. Recent experimental tests of local realism based on the Clauser-Horne/Eberhard inequality are considered and it is shown that in one case (Christensen et al.) the emission rate is appropriately limited to ensure valid counting, and the data confirms local realism; in a second case (Giustina et al.) the experiment fails to appropriately limit the emission rate, and the claimed violation can be accounted for locally.

  9. Solitons in an effective theory of CP violation

    E-Print Network [OSTI]

    Chandra, N; Srivastava, R

    2016-01-01

    We study an effective field theory describing CP-violation in a scalar meson sector. We write the simplest interaction that we can imagine, $${\\cal L}\\sim \\epsilon_{i_1\\cdots i_5}\\epsilon^{\\mu_1\\cdots\\mu_4}\\phi_{i_1}\\partial_{\\mu_1}\\phi_{i_2}\\partial_{\\mu_2}\\phi_{i_3}\\partial_{\\mu_3}\\phi_{i_4}\\partial_{\\mu_4}\\phi_{i_5}$$ which involves 5 scalar fields. The theory describes CP-violation only when it contains scalar fields representing mesons such as the $K^*_0$, sigma, $f_0$ or $a_0$. If the fields represent pseudo-scalar mesons, such as B, K and $\\pi$ mesons then the Lagrangian describes anomalous processes such as $KK\\to \\pi\\pi\\pi$. We speculate that the field theory contains long lived excitations corresponding to $Q$-ball type domain walls expanding through space-time. In an 1+1 dimensional, analogous, field theory we find an exact, analytic solution corresponding to such solitons. The solitons have a U(1) charge $Q$, which can be arbitrarily high, but oddly, the energy behaves as $Q^{2/3}$ for large charg...

  10. Type-IV Seesaw Mechanism and CP Violation for Leptogenesis

    E-Print Network [OSTI]

    Franco, Edison T

    2015-01-01

    A new seesaw mechanism is presented in the neutrino sector and a new phase of CP violation ($\\alpha$) emerges in the interplay between the type-I and type-III seesaw schemes. This phase is inside the mixing term, thus cannot be rotated away in the Yukawa Lagrangian and, therefore, the heavy symmetry states cannot be in a diagonal weak basis in the broken phase. Some particular descriptions are analysed suggesting that if the usual Yukawa couplings are suppressed, leptogenesis still occurs due to new interacting vertex with fermion triplet, T, fermion singlets, N, and scalar triplet, $\\Sigma$. The evaluated CP violation is enough to generate the observed matter-antimatter asymmetry even in the minimal 1N+1T case (independently of $\\alpha$) or in the 2N+1T approach (controlled by $\\alpha$). The latter introduces more CP contributions to leptogenesis due to new diagrams which are now possible even with suppressed imaginary part of the standard Yukawa couplings and can induce the observed baryon-to-photon ratio.

  11. Computationally Efficient Modeling of High-Efficiency Clean Combustion...

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

    & Publications Computationally Efficient Modeling of High-Efficiency Clean Combustion Engines Computationally Efficient Modeling of High-Efficiency Clean Combustion Engines...

  12. Maryland Efficiency Program Options

    Broader source: Energy.gov [DOE]

    Maryland Efficiency Program Options, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  13. Energy Efficient Buildings Hub

    SciTech Connect (OSTI)

    2013-04-01

    Energy Efficient Buildings HUB Lunch Presentation for the 2013 Building Technologies Office's Program Peer Review

  14. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    o nergy Energy Efficiency & Renewable Energy U.S. Department of Energy Fuel Cell Technologies Efficiency and Renewable Energy United States Department of Energy Washington, D.C. 18th W rld Hydrogen E Presidential Priorities Energy efficiency and renewable energy research development andEnergy efficiency

  15. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy Fuel Cell Technologies Program Sunita SatyapalSunita SatyapalSeptember 24, 2009 *On detail #12;2 Fuel Cells: Addressing Energy Challenges Energy Efficiency and Resource DiversityEnergy Efficiency and Resource Diversity Fuel cells offer a highly efficient way to use diverse

  16. An Adaptive Policy to Minimize Energy and SLA Violations of Parallel Jobs on the Cloud

    E-Print Network [OSTI]

    Sakellariou, Rizos

    An Adaptive Policy to Minimize Energy and SLA Violations of Parallel Jobs on the Cloud Javier using CloudSim show that our proactive policy strikes a good balance between consumed energy they should end. Our policy minimizes energy consumption and the number of SLA violations proactively

  17. An Adaptive Policy to Minimize Energy and SLA Violations of Parallel Jobs on the Cloud

    E-Print Network [OSTI]

    Sakellariou, Rizos

    An Adaptive Policy to Minimize Energy and SLA Violations of Parallel Jobs on the Cloud Javier using CloudSim show that our proactive policy strikes a good balance between consumed energy and the number of SLA violations and compares favorably with other policies from the literature. Keywords-energy

  18. Bounds on R-parity violating supersymmetric couplings from leptonic and semileptonic meson decays

    SciTech Connect (OSTI)

    Dreiner, H. K.; Kraemer, M.; O'Leary, Ben [Physikalisches Institut der Universitaet Bonn, Nussallee 12, 53115 Bonn (Germany); Institut fuer Theoretische Physik E, RWTH Aachen, 52056 Aachen (Germany); S.U.P.A., School of Physics, University of Edinburgh, Edinburgh EH9 3JZ, Scotland (United Kingdom) and Institut fuer Theoretische Physik E, RWTH Aachen, 52056 Aachen (Germany)

    2007-06-01

    We present a comprehensive update of the bounds on R-parity violating supersymmetric couplings from lepton-flavor- and lepton-number-violating decay processes. We consider {tau} and {mu} decays as well as leptonic and semileptonic decays of mesons. We present several new bounds resulting from {tau}, {eta}, and kaon decays and correct some results in the literature concerning B meson decays.

  19. Erratum (astro-ph/0510172): Robust Limits on Lorentz Violation from Gamma-Ray Bursts

    E-Print Network [OSTI]

    John Ellis; N. E. Mavromatos; D. V. Nanopoulos; A. S. Sakharov; E. K. G. Sarkisyan

    2007-12-17

    We correct the fitting formula used in refs. [1,2] to obtain a robust limit on a violation of Lorentz invariance that depends linearly on the photon energy. The correction leads to a slight increase of the limit on the scale of the violation, to M > 1.4 x 10^{16} GeV.

  20. Testing minimal lepton flavor violation with extra vector-like leptons at the LHC

    E-Print Network [OSTI]

    Eilam Gross; Daniel Grossman; Yosef Nir; Ofer Vitells

    2010-01-17

    Models of minimal lepton flavor violation where the seesaw scale is higher than the relevant flavor scale predict that all lepton flavor violation is proportional to the charged lepton Yukawa matrix. If extra vector-like leptons are within the reach of the LHC, it will be possible to test the resulting predictions in ATLAS/CMS.

  1. Search for CP Violation in Hyperon Decays Piotr Zyla a \\Lambda

    E-Print Network [OSTI]

    Fermilab Experiment E871

    1 Search for CP Violation in Hyperon Decays Piotr Zyla a \\Lambda a Lawrence Berkeley National Laboratory, Bldg. 50R­6040, Berkeley, CA 94720­8165 Direct CP violation in nonleptonic hyperon decays can \\Lambda of the hyperon and anti­hyperon decays, vanishes if CP is conserved. We report on an analysis

  2. Results on CP Violation from Belle T.E. Browder representing the Belle Collaboration

    E-Print Network [OSTI]

    Browder, Tom

    Results on CP Violation from Belle T.E. Browder representing the Belle Collaboration Department of Physics, University of Hawaii, Honolulu, Hawaii Abstract. I describe the recent measurement of the CP In 1973, Kobayashi and Maskawa (KM) first proposed a model where CP violation is incorporated

  3. On CP violation and the measurement of the dimuon charge asymmetry at hadron colliders

    E-Print Network [OSTI]

    B. Hoeneisen

    2006-07-26

    B factories measure the CP violation parameter of B^0 Bbar^0 mixing and decay. Hadron colliders measure the dimuon charge asymmetry of an admixture of B hadrons. In this note we discuss a subtle point on how the CP violation parameter of B^0_s Bbar^0_s mixing and decay can be extracted from these measurements.

  4. Validity check for imaginary part of potential of a moving quarkonia in plasma with hyperscaling violating backgrounds

    E-Print Network [OSTI]

    Sadeghi, J

    2015-01-01

    One efficient tool for studying strongly coupled field theory is AdS/CFT correspondence. In this note we apply conditions of validity of imaginary part of potential for a moving quarkonia in plasma when it has backgrounds with hyperscaling violation. Imaginary part of potential should be negative because it appears in an exponential function and should exhibit a decaying behavior. We find general constraints for Im$V_{Q \\bar{Q}}$ at near horizon limit and apply them for some known cases. Finally we find appropriate spatial dimension for two interesting cases , surplus we present an exact hyperscaling violationg metric which its behavior in this context is very close to a YM theory with finite temperature.

  5. CPT and lepton number violation in neutrino sector: Modified mass matrix and oscillation due to gravity

    E-Print Network [OSTI]

    Monika Sinha; Banibrata Mukhopadhyay

    2007-11-21

    We study the consequences of CPT and lepton number violation in neutrino sector. For CPT violation we take gravity with which neutrino and antineutrino couple differently. Gravity mixes neutrino and antineutrino in an unequal ratio to give two mass eigenstates. Lepton number violation interaction together with CPT violation gives rise to neutrino-antineutrino oscillation. Subsequently, we study the neutrino flavor mixing and oscillation under the influence of gravity. It is found that gravity changes flavor oscillation significantly which influences the relative abundance of different flavors in present universe. We show that the neutrinoless double beta decay rate is modified due to presence of gravity- the origin of CPT violation, as the mass of the flavor state is modified.

  6. Spontaneous Lorentz Violation, Negative Energy and the Second Law of Thermodynamics

    E-Print Network [OSTI]

    Brian Feldstein

    2009-10-05

    We reconsider the possibility of violating the generalized second law of thermodynamics in theories with spontaneous Lorentz violation. It has been proposed that this may be accomplished in particular with a black hole immersed in a ghost condensate background, which may be taken to break Lorentz invariance without appreciably distorting the space-time geometry. In this paper we show that there in fact exist solutions explicitly describing flow of negative energy into these black holes, allowing for violation of the second law in a very simple way. This second law violation is independent of any additional assumptions such as couplings of the ghost condensate to secondary fields, and suggests that violation of the null energy condition may be the true source of pathology in these theories.

  7. Pakistan creates national centre for physics/Symmetry violation in a new setting/CERN: Circular solution to

    E-Print Network [OSTI]

    1999-01-01

    Pakistan creates national centre for physics/Symmetry violation in a new setting/CERN: Circular solution to

  8. The Discovery reach of $CP$ violation in neutrino oscillation with non-standard interaction effects

    E-Print Network [OSTI]

    Zini Rahman; Arnab Dasgupta; Rathin Adhikari

    2015-03-11

    We have studied the $CP$ violation discovery reach in neutrino oscillation experiment with superbeam, neutrino factory and monoenergetic neutrino beam. For NSI satisfying model-dependent bound for shorter baselines (like CERN-Fr\\'ejus set-up ) there is insignificant effect of NSI on the the discovery reach of $CP$ violation due to $\\delta$. Particularly, for superbeam and neutrino factory we have also considered relatively longer baselines for which there could be significant NSI effects on $CP$ violation discovery reach for higher allowed values of NSI. For monoenergetic beam only shorter baselines are considered to study $CP$ violation with different nuclei as neutrino sources. Interestingly for non-standard interactions - $\\varepsilon_{e\\mu}$ and $\\varepsilon_{e\\tau}$ of neutrinos with matter during propagation in longer baselines in superbeam, there is possibility of better discovery reach of $CP$ violation than that with only Standard Model interactions of neutrinos with matter. For complex NSI we have shown the $CP$ violation discovery reach in the plane of Dirac phase $\\delta$ and NSI phase $\\phi_{ij}$. The $CP$ violation due to some values of $\\delta $ remain unobservable with present and near future experimental facilities in superbeam and neutrino factory . However, in presence of some ranges of off-diagonal NSI phase values there are some possibilities of discovering total $CP$ violation for any $\\delta_{CP}$ value at $5 \\sigma$ for neutrino factory. Our analysis indicates that for some values of NSI phases total $CP$ violation may not be at all observable for any values of $\\delta $. Using a neutrino beam from electron capture process for nuclei $^{110}_{50}$Sn and $^{152}$Yb, we have shown the discovery reach of $CP$ violation in neutrino oscillation experiment.

  9. A Member of The Texas A&M University System Reducing School Bus Stop-Arm Violations in Texas

    E-Print Network [OSTI]

    A Member of The Texas A&M University System Reducing School Bus Stop-Arm Violations in Texas Video Technology in Identifying School Bus Stop-Arm Violations #12;REDUCING SCHOOL BUS STOP-ARM in Identifying School Bus Stop-Arm Violations By Patricia A. Turner Associate Research Scientist Texas

  10. Analysis of the Chinese Market for Building Energy Efficiency

    SciTech Connect (OSTI)

    Yu, Sha; Evans, Meredydd; Shi, Qing

    2014-03-20

    China will account for about half of the new construction globally in the coming decade. Its floorspace doubled from 1996 to 2011, and Chinese rural buildings alone have as much floorspace as all of U.S. residential buildings. Building energy consumption has also grown, increasing by over 40% since 1990. To curb building energy demand, the Chinese government has launched a series of policies and programs. Combined, this growth in buildings and renovations, along with the policies to promote green buildings, are creating a large market for energy efficiency products and services. This report assesses the impact of China’s policies on building energy efficiency and on the market for energy efficiency in the future. The first chapter of this report introduces the trends in China, drawing on both historical analysis, and detailed modeling of the drivers behind changes in floorspace and building energy demand such as economic and population growth, urbanization, policy. The analysis describes the trends by region, building type and energy service. The second chapter discusses China’s policies to promote green buildings. China began developing building energy codes in the 1980s. Over time, the central government has increased the stringency of the code requirements and the extent of enforcement. The codes are mandatory in all new buildings and major renovations in China’s cities, and they have been a driving force behind the expansion of China’s markets for insulation, efficient windows, and other green building materials. China also has several other important policies to encourage efficient buildings, including the Three-Star Rating System (somewhat akin to LEED), financial incentives tied to efficiency, appliance standards, a phasing out of incandescent bulbs and promotion of efficient lighting, and several policies to encourage retrofits in existing buildings. In the third chapter, we take “deep dives” into the trends affecting key building components. This chapter examines insulation in walls and roofs; efficient windows and doors; heating, air conditioning and controls; and lighting. These markets have seen significant growth because of the strength of the construction sector but also the specific policies that require and promote efficient building components. At the same time, as requirements have become more stringent, there has been fierce competition, and quality has at time suffered, which in turn has created additional challenges. Next we examine existing buildings in chapter four. China has many Soviet-style, inefficient buildings built before stringent requirements for efficiency were more widely enforced. As a result, there are several specific market opportunities related to retrofits. These fall into two or three categories. First, China now has a code for retrofitting residential buildings in the north. Local governments have targets of the number of buildings they must retrofit each year, and they help finance the changes. The requirements focus on insulation, windows, and heat distribution. Second, the Chinese government recently decided to increase the scale of its retrofits of government and state-owned buildings. It hopes to achieve large scale changes through energy service contracts, which creates an opportunity for energy service companies. Third, there is also a small but growing trend to apply energy service contracts to large commercial and residential buildings. This report assesses the impacts of China’s policies on building energy efficiency. By examining the existing literature and interviewing stakeholders from the public, academic, and private sectors, the report seeks to offer an in-depth insights of the opportunities and barriers for major market segments related to building energy efficiency. The report also discusses trends in building energy use, policies promoting building energy efficiency, and energy performance contracting for public building retrofits.

  11. CP Violation and Dilaton Stabilization in Heterotic String Models

    E-Print Network [OSTI]

    S. Khalil; O. Lebedev; S. Morris

    2002-04-26

    We study the possibility of spontaneous CP violation in string models with the dilaton field stabilized at a phenomenologically acceptable value. We consider three mechanisms to stabilize the dilaton: multiple gaugino condensates, a nonperturbative Kahler potential, and a superpotential based on S-duality, and analyze consequent CP phases in the soft SUSY breaking terms. Due to non-universality forced upon the theory by requiring a non-trivial CKM phase, the EDM problem becomes more severe. Even if there are no complex phases in the VEVs of the SUSY breaking fields, the electric dipole moments are overproduced by orders of magnitude. We also address the question of modular invariance of the physical CP phases.

  12. CP Violation and Dilaton Stabilization in Heterotic String Models

    E-Print Network [OSTI]

    Khalil, S; Morris, S

    2002-01-01

    We study the possibility of spontaneous CP violation in string models with the dilaton field stabilized at a phenomenologically acceptable value. We consider three mechanisms to stabilize the dilaton: multiple gaugino condensates, a nonperturbative Kahler potential, and a superpotential based on S-duality, and analyze consequent CP phases in the soft SUSY breaking terms. Due to non-universality forced upon the theory by requiring a non-trivial CKM phase, the EDM problem becomes more severe. Even if there are no complex phases in the VEVs of the SUSY breaking fields, the electric dipole moments are overproduced by orders of magnitude. We also address the question of modular invariance of the physical CP phases.

  13. Structure of Cosmological CP Violation via Neutrino Seesaw

    E-Print Network [OSTI]

    V. Barger; Duane A. Dicus; Hong-Jian He; Tianjun Li

    2003-12-16

    The cosmological matter-antimatter asymmetry can originate from CP-violating interactions of seesaw Majorana neutrinos via leptogenesis in the thermal phase of the early universe. Having the cosmological CP-phase for leptogenesis requires at least two right-handed Majorana neutrinos. Using only the low energy neutrino observables we quantitatively reconstruct a minimal neutrino seesaw. We establish a general criterion for minimal seesaw schemes in which the cosmological CP-phase is {\\it completely} reconstructed from the low energy CP-phases measured by neutrino oscillation and neutrinoless double-beta decay experiments. We reveal and analyze two distinct classes of such minimal schemes that are shown to be highly predictive. Extension of our reconstruction formalism to a three-heavy-neutrino seesaw is discussed.

  14. Jefferson Lab injector development for next generation parity violation experiments

    SciTech Connect (OSTI)

    J. Grames, J. Hansknect, M. Poelker, R. Suleiman

    2011-05-01

    To meet the challenging requirements of next generation parity violation experiments at Jefferson Lab, the Center for Injectors and Sources is working on improving the parity-quality of the electron beam. These improvements include new electron photogun design and fast helicity reversal of the Pockels Cell. We proposed and designed a new scheme for slow helicity reversal using a Wien Filter and two Solenoids. This slow reversal complements the insertable half-wave plate reversal of the laser-light polarization by reversing the electron beam polarization at the injector while maintaining a constant accelerator configuration. For position feedback, fast air-core magnets located in the injector were commissioned and a new scheme for charge feedback is planned.

  15. Low energy Lorentz violation from polymer quantum field theory

    E-Print Network [OSTI]

    Husain, Viqar

    2015-01-01

    We analyze the response of an inertial two-level Unruh-DeWitt particle detector coupled to a polymer quantized scalar field in four-dimensional Minkowski spacetime, within first-order perturbation theory. Above a critical rapidity $\\beta_c \\approx 1.3675$, independent of the polymer mass scale $M_\\star$, two drastic changes occur: (i) the detector's excitation rate becomes nonvanishing; (ii) the excitation and de-excitation rates are of order $M_\\star$, for arbitrarily small detector energy gap. We argue that qualitatively similar results hold for any Lorentz violating theory in which field modes with spatial momentum $k$ have excitation energy of the form $|k|\\ f(|k|/M_\\star)$ where the function $f$ dips below unity.

  16. Isospin-Violating Dark Matter and Neutrinos From the Sun

    E-Print Network [OSTI]

    Shao-Long Chen; Yue Zhang

    2011-06-20

    We study the indirect detection of dark matter through neutrino flux from their annihilation in the center of the Sun, in a class of theories where the dark matter-nucleon spin-independent interactions break the isospin symmetry. We point out that, while the direct detection bounds with heavy targets like Xenon are weakened and reconciled with the positive signals in DAMA and CoGeNT experiments, the indirect detection using neutrino telescopes can impose a relatively stronger constraint and brings tension to such explanation, if the annihilation is dominated by heavy quark or $\\tau$-lepton final states. As a consequence, the qualified isospin violating dark matter candidate has to preferably annihilate into light flavors.

  17. Isospin violation and the proton's neutral weak magnetic form factor

    E-Print Network [OSTI]

    Randy Lewis; Nader Mobed

    1998-10-05

    The effects of isospin violation on the neutral weak magnetic form factor of the proton are studied using two-flavour chiral perturbation theory. The first nonzero contributions appear at O(p^4) in the small-momentum expansion, and the O(p^5) corrections are also calculated. The leading contributions from an explicit Delta(1232) isomultiplet are included as well. At such a high order in the chiral expansion, one might have expected a large number of unknown parameters to contribute. However, it is found that no unknown parameters can appear within loop diagrams, and a single tree-level counterterm at O(p^4) is sufficient to absorb all divergences. The momentum dependence of the neutral weak magnetic form factor is not affected by this counterterm.

  18. Higgs bosons in supersymmetric model with CP-violating potential

    E-Print Network [OSTI]

    Oshimo, Noriyuki

    2015-01-01

    In the supersymmetric standard model which is not minimal, the Higgs potential does not conserve CP symmetry generally. Assuming that there exists an SU(2)-triplet Higgs field, we discuss resultant CP-violating effects on the Higgs bosons. The experimentally observed Higgs boson, which should be CP-even in the standard model, could decay into two photons of CP-odd polarization state non-negligibly. For the second lightest Higgs boson, in sizable region of parameter space, the dominant decay modes are different from those expected by the standard model. The two-photon decay could yield both even and odd CP final states at a ratio of oder of unity.

  19. Higgs bosons in supersymmetric model with CP-violating potential

    E-Print Network [OSTI]

    Noriyuki Oshimo

    2015-11-21

    In the supersymmetric standard model which is not minimal, the Higgs potential does not conserve CP symmetry generally. Assuming that there exists an SU(2)-triplet Higgs field, we discuss resultant CP-violating effects on the Higgs bosons. The experimentally observed Higgs boson, which should be CP-even in the standard model, could decay into two photons of CP-odd polarization state non-negligibly. For the second lightest Higgs boson, in sizable region of parameter space, the dominant decay modes are different from those expected by the standard model. The two-photon decay could yield both even and odd CP final states at a ratio of oder of unity.

  20. U(2)? flavor symmetry and lepton universality violation in W?????

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

    Filipuzzi, Alberto; Portolés, Jorge; González-Alonso, Martín

    2012-06-26

    The seeming violation of universality in the ? lepton coupling to the W boson suggested by LEP-II data is studied using an effective field theory (EFT) approach. Within this framework we explore how this feature fits into the current constraints from electroweak precision observables using different assumptions about the flavor structure of New Physics, namely [U(2)×U(1)]? and U(2)?. We show the importance of leptonic and semileptonic tau decay measurements, giving 3–4 TeV bounds on the New Physics effective scale at 90% C.L. We conclude under very general assumptions that it is not possible to accommodate this deviation from universality inmore »the EFT framework, and thus such a signal could only be explained by the introduction of light degrees of freedom or New Physics strongly coupled at the electroweak scale.« less

  1. Low energy Lorentz violation from polymer quantum field theory

    E-Print Network [OSTI]

    Viqar Husain; Jorma Louko

    2015-08-21

    We analyze the response of an inertial two-level Unruh-DeWitt particle detector coupled to a polymer quantized scalar field in four-dimensional Minkowski spacetime, within first-order perturbation theory. Above a critical rapidity $\\beta_c \\approx 1.3675$, independent of the polymer mass scale $M_\\star$, two drastic changes occur: (i) the detector's excitation rate becomes nonvanishing; (ii) the excitation and de-excitation rates are of order $M_\\star$, for arbitrarily small detector energy gap. We argue that qualitatively similar results hold for any Lorentz violating theory in which field modes with spatial momentum $k$ have excitation energy of the form $|k|\\ f(|k|/M_\\star)$ where the function $f$ dips below unity.

  2. Building Energy Efficient Schools 

    E-Print Network [OSTI]

    McClure, J. D.; Estes, J. M.

    1985-01-01

    Many new school buildings consume only half the energy required by similar efficient structures designed without energy performance as a design criterion. These are comfortable and efficient while construction costs remain about the same as those...

  3. Managing Energy Efficiency Improvement 

    E-Print Network [OSTI]

    Almaguer, J.

    2006-01-01

    , CETAC-WEST (Canadian Environmental Technology Advancement Corporation - West), in mid-2000, introduced a practical approach to eco-efficiency to Western Canada's upstream oil and gas sector. The CETAC-WEST Eco-Efficiency Program, focused primarily...

  4. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy Overview of Hydrogen and Fuel Cell Activities Dr. Sunita Energy efficiency and renewable energy research, development, and deployment activities help the Nation Presidential Priorities Economic · Create green jobs through Recovery Act energy projects · Double renewable

  5. Industrial Energy Efficiency Assessments

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

    Energy Efficiency Assessments Lynn Price Staff Scientist China Energy Group Energy Analysis Department Environmental Energy Technologies Division Lawrence Berkeley National...

  6. Energy Efficiency Financing

    Office of Energy Efficiency and Renewable Energy (EERE)

    Information and examples of state financing for energy efficiency programs, with descriptions on implementation methods and concerns.

  7. Energy Efficient Radio Resource

    E-Print Network [OSTI]

    Yanikomeroglu, Halim

    Energy Efficient Radio Resource Management in a Coordinated Multi-Cell Distributed Antenna System Hacettepe University 5 September 2014 Omer HALILOGLU (Hacettepe University) Energy Efficient Radio Resource mobility , 1 Gb/s at high mobility). Omer HALILOGLU (Hacettepe University) Energy Efficient Radio Resource

  8. ENTRY LOBBY ENERGY EFFICIENCY

    E-Print Network [OSTI]

    Escher, Christine

    ENTRY LOBBY ENERGY EFFICIENCY Clerestory windows provide natural day-lighting.· Exterior roof SUSTAINABILITY FEATURES #12;ADMINISTRATION ENERGY EFFICIENCY High performance window glazing· minimizes heat gain. Skylights provide natural day-lighting.· High-efficiency lighting reduces energy· costs and heat gain

  9. Asymmetric Dark Matter and CP Violating Scatterings in a UV Complete Model

    E-Print Network [OSTI]

    Iason Baldes; Nicole F. Bell; Alexander J. Millar; Raymond R. Volkas

    2015-06-24

    We explore possible asymmetric dark matter models using CP violating scatterings to generate an asymmetry. In particular, we introduce a new model, based on DM fields coupling to the SM Higgs and lepton doublets, $\\overline{L}H$, and explore its UV completions. We study the CP violation and asymmetry formation of this model, to demonstrate that it is capable of producing the correct abundance of dark matter and the observed matter-antimatter asymmetry. Crucial to achieving this is the introduction of interactions which violate CP with a $T^{2}$ dependence.

  10. Low scale seesaw, electron EDM and leptogenesis in a model with spontaneous CP violation

    SciTech Connect (OSTI)

    Chen, Mu-Chun; /Fermilab /UC, Irvine; Mahanthappa, K.T.; /Colorado U.

    2006-09-01

    Strong correlations between leptogenesis and low energy CP violating leptonic processes have been shown by us to exist fin the minimal left-right symmetric model with spontaneous CP violation. In this note, they investigate the implications of this model for the electric dipole moment of the electron. With an additional broken U(1){sub H} symmetry, the seesaw scale can be lowered to close to the electroweak scale. This additional symmetry also makes the connection between CP violation in quark sector to that in the lepton sector possible.

  11. Obstacles to extending R-parity violation to Supersymmetric SU(5)

    E-Print Network [OSTI]

    Khan, Najimuddin; Raychaudhuri, Amitava

    2015-01-01

    We explore the consequences of promoting bilinear R-parity violation, usually formulated in the minimal supersymmetric standard model framework, to a supersymmetric SU(5) grand unified theory. We observe that the limits on proton decay and neutrino mass place tight constraints on the bilinear SU(5) R-parity violating parameters creating a different doublet-triplet issue which cannot be resolved by an extension of the usual fine-tuning in the symmetry breaking scalar sector. If the parameters are made to satisfy the constraints, albeit unnaturally, there remains no room for the possibility to correct the SU(5) fermion mass ratios by introducing R-parity violation.

  12. Energy Efficiency Strategies 

    E-Print Network [OSTI]

    Dillingham, G.

    2012-01-01

    IN THE ROOM • A BROAD-BASED CAMPAIGN FOR 30% • 2012 RESIDENTIAL AND COMMERCIAL IECC • THE MYRIAD BENEFITS • THE CHALLENGE: ADOPT, TRAIN, ENFORCE ESL-KT-13-12-30 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16...-18 COMMERCIAL BUILDING EFFICIENCY IS STAGNANT Commercial Building Energy Efficiency ESL-KT-13-12-30 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 AND, AFTER WORSENING LAST DECADE, HOME EFFICIENCY IS NOW SAME AS 1990s...

  13. THE VIOLATION OF THE TAYLOR HYPOTHESIS IN MEASUREMENTS OF SOLAR WIND TURBULENCE

    SciTech Connect (OSTI)

    Klein, K. G.; Howes, G. G.; TenBarge, J. M.

    2014-08-01

    Motivated by the upcoming Solar Orbiter and Solar Probe Plus missions, qualitative and quantitative predictions are made for the effects of the violation of the Taylor hypothesis on the magnetic energy frequency spectrum measured in the near-Sun environment. The synthetic spacecraft data method is used to predict observational signatures of the violation for critically balanced Alfvénic turbulence or parallel fast/whistler turbulence. The violation of the Taylor hypothesis can occur in the slow flow regime, leading to a shift of the entire spectrum to higher frequencies, or in the dispersive regime, in which the dissipation range spectrum flattens at high frequencies. It is found that Alfvénic turbulence will not significantly violate the Taylor hypothesis, but whistler turbulence will. The flattening of the frequency spectrum is therefore a key observational signature for fast/whistler turbulence.

  14. Violation of kT factorization in quark production from the Color Glass Condensate

    E-Print Network [OSTI]

    H. Fujii; F. Gelis; R. Venugopalan

    2005-10-05

    We examine the violation of the kT factorization approximation for quark production in high energy proton-nucleus collisions. We comment on its implications for the open charm and quarkonium production in collider experiments.

  15. Measurements of Direct CP-Violating Asymmetries in Charmless Decays of Bottom Baryons

    E-Print Network [OSTI]

    Aaltonen, T.

    We report final measurements of direct CP-violating asymmetries in charmless decays of neutral bottom hadrons to pairs of charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using the complete ?s ...

  16. Measurement of parity-violating asymmetry in electron-deuteron inelastic scattering

    E-Print Network [OSTI]

    Wang, D.

    The parity-violating asymmetries between a longitudinally polarized electron beam and an unpolarized deuterium target have been measured recently. The measurement covered two kinematic points in the deep-inelastic scattering ...

  17. Laboratory bounds on Lorentz symmetry violation in low energy neutrino physics

    E-Print Network [OSTI]

    E. Di Grezia; S. Esposito; G. Salesi

    2006-03-13

    Quantitative bounds on Lorentz symmetry violation in the neutrino sector have been obtained by analyzing existing laboratory data on neutron $\\beta$ decay and pion leptonic decays. In particular some parameters appearing in the energy-momentum dispersion relations for $\

  18. Estimating SI violation in CMB due to non-circular beam and complex scan in minutes

    E-Print Network [OSTI]

    Pant, Nidhi; Rotti, Aditya; Mitra, Sanjit; Souradeep, Tarun

    2015-01-01

    Mild, unavoidable deviations from circular-symmetry of instrumental beams along with scan strategy can give rise to measurable Statistical Isotropy (SI) violation in Cosmic Microwave Background (CMB) experiments. If not accounted properly, this spurious signal can complicate the extraction of other SI violation signals (if any) in the data. However, estimation of this effect through exact numerical simulation is computationally intensive and time consuming. A generalized analytical formalism not only provides a quick way of estimating this signal, but also gives a detailed understanding connecting the leading beam anisotropy components to a measurable BipoSH characterisation of SI violation. In this paper, we provide an approximate generic analytical method for estimating the SI violation generated due to a non-circular (NC) beam and arbitrary scan strategy, in terms of the Bipolar Spherical Harmonic (BipoSH) spectra. Our analytical method can predict almost all the features introduced by a NC beam in a compl...

  19. Multiple Cyclotron Method to Search for CP Violation in the Neutrino Sector

    E-Print Network [OSTI]

    Conrad, Janet

    New low-cost, high-power proton cyclotrons open the opportunity for a novel precision search for CP violation in the light neutrino sector. The accelerators can produce decay-at-rest neutrino beams located at multiple ...

  20. Search for CP Violation in B0s to J/psi phi at CDF

    E-Print Network [OSTI]

    Chunlei Liu

    2008-07-30

    The CKM mechanism is well established as the dominant mechanism for $CP$ violation, which was first discovered in the neutral kaons in 1964 \\cite{ref:cpkaon}. To search for new sources of CP violation, one can exploit a handful of systems in which the standard model makes a precise prediction of CP violation. In the $B^0_s\\to J/\\psi \\phi$ system, CP violation in the interference of mixing and decay is precisely predicted in the standard model, the prediction being very close to zero. The CDF experiment reconstructs about 2000 signal events in 1.35 fb$^{-1}$ of luminosity. We obtain a confidence region in the space of the parameters $\\beta_s$, the CP phase, and $\\Delta\\Gamma$, the width difference. This result is 1.5 $\\sigma$ from the standard model prediction.

  1. Measurements of CP-Violating Asymmetries in B0 to a1(1260)^{+-} pi^{-+} Decays

    E-Print Network [OSTI]

    F. Palombo

    2007-03-03

    We present measurements of CP-violating asymmetries in the decay B0 -> a_1(1260)^{+-} pi^{-+} with a_1(1260)^{+-} -> pi^{-+} pi^{+-} pi^{+-}. The data sample corresponds to 384 million B B-bar pairs collected with the BaBar detector at the PEP-II asymmetric B-factory at SLAC. We measure the CP-violating asymmetry A^{a1pi}_{CP}=-0.07+-0.07+-0.02, the mixing-induced CP violation parameter S_{a1pi}= 0.37 +-0.21+-0.07, the direct CP violation parameter C_{a1pi}=-0.10+-0.15+-0.09, and the parameters DeltaC_{a1pi}=0.26+-0.15+-0.07 and DeltaS_{a1pi}=-0.14+-0.21+-0.06. From these measured quantities we exstract the angle alpha_{eff}= 78.6^{0} +- 7.3^{0}.

  2. Experimental loophole-free violation of a Bell inequality using entangled electron spins separated by 1.3 km

    E-Print Network [OSTI]

    B. Hensen; H. Bernien; A. E. Dréau; A. Reiserer; N. Kalb; M. S. Blok; J. Ruitenberg; R. F. L. Vermeulen; R. N. Schouten; C. Abellán; W. Amaya; V. Pruneri; M. W. Mitchell; M. Markham; D. J. Twitchen; D. Elkouss; S. Wehner; T. H. Taminiau; R. Hanson

    2015-08-24

    For more than 80 years, the counterintuitive predictions of quantum theory have stimulated debate about the nature of reality. In his seminal work, John Bell proved that no theory of nature that obeys locality and realism can reproduce all the predictions of quantum theory. Bell showed that in any local realist theory the correlations between distant measurements satisfy an inequality and, moreover, that this inequality can be violated according to quantum theory. This provided a recipe for experimental tests of the fundamental principles underlying the laws of nature. In the past decades, numerous ingenious Bell inequality tests have been reported. However, because of experimental limitations, all experiments to date required additional assumptions to obtain a contradiction with local realism, resulting in loopholes. Here we report on a Bell experiment that is free of any such additional assumption and thus directly tests the principles underlying Bell's inequality. We employ an event-ready scheme that enables the generation of high-fidelity entanglement between distant electron spins. Efficient spin readout avoids the fair sampling assumption (detection loophole), while the use of fast random basis selection and readout combined with a spatial separation of 1.3 km ensure the required locality conditions. We perform 245 trials testing the CHSH-Bell inequality $S \\leq 2$ and find $S = 2.42 \\pm 0.20$. A null hypothesis test yields a probability of $p = 0.039$ that a local-realist model for space-like separated sites produces data with a violation at least as large as observed, even when allowing for memory in the devices. This result rules out large classes of local realist theories, and paves the way for implementing device-independent quantum-secure communication and randomness certification.

  3. Towards a Realistic Picture of CP Violation in Heterotic String Models

    E-Print Network [OSTI]

    Oleg Lebedev; Stephen Morris

    2002-03-26

    We find that dilaton dominated supersymmetry breaking and spontaneous CP violation can be achieved in heterotic string models with superpotentials singular at the fixed points of the modular group. A semi--realistic picture of CP violation emerges in such models: the CKM phase appears due to a complex VEV of the T-modulus, while the soft supersymmetric CP phases are absent due to an axionic--type symmetry.

  4. Towards a Realistic Picture of CP Violation in Heterotic String Models

    E-Print Network [OSTI]

    Lebedev, O; Lebedev, Oleg; Morris, Stephen

    2002-01-01

    We find that dilaton dominated supersymmetry breaking and spontaneous CP violation can be achieved in heterotic string models with superpotentials singular at the fixed points of the modular group. A semi--realistic picture of CP violation emerges in such models: the CKM phase appears due to a complex VEV of the T-modulus, while the soft supersymmetric CP phases are absent due to an axionic--type symmetry.

  5. Assessment of Driving Mental Models as a Predictor of Crashes and Moving Violations 

    E-Print Network [OSTI]

    Munoz Galvez, Gonzalo Javier

    2012-07-16

    -1 ASSESSMENT OF DRIVING MENTAL MODELS AS A PREDICTOR OF CRASHES AND MOVING VIOLATIONS A Thesis by GONZALO JAVIER MU?OZ G?LVEZ Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 2011 Major Subject: Psychology Assessment of Driving Mental Models as a Predictor of Crashes and Moving Violations Copyright 2011 Gonzalo Javier Mu?oz G...

  6. Bounding Lorentz violation at particle colliders by tracking the motion of charged particles

    SciTech Connect (OSTI)

    Altschul, Brett [Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208 (United States)

    2011-10-01

    In the presence of Lorentz violation, the motion of a charged particle in a magnetic field is distorted. By measuring the eccentricities of particles' elliptical orbits and studying how those eccentricities vary with the absolute orientation of the laboratory, it is possible to constrain the Lorentz-violating c{sub JK} parameters. For each observed species, this method can provide constraints on four linear combinations of coefficients for which, in some species, there are presently no two-sided bounds.

  7. Search for CP violation in singly Cabibbo suppressed four-body D decays

    SciTech Connect (OSTI)

    Martinelli, Maurizio; /Bari U.

    2011-06-22

    We search for CP violation in a sample of 4.7 x 10{sup 4} singly Cabibbo suppressed D{sup 0} {yields} K{sup +} K{sup -} {pi}{sup +}{pi}{sup -} decays and 1.8(2.6) x 10{sup 4} D{sub (s)}{sup +} {yields} K{sub S}{sup 0} K{sup +} {pi}{sup +} {pi}{sup -} decays. CP violation is searched for in the difference between the T-odd asymmetries, obtained using triple product correlations, measured for D and {bar D} decays. The measured CP violation parameters are A{sub T}(D{sup 0}) = (1.0 {+-} 5.1(stat) {+-} 4.4(syst)) x 10{sup -3}, A{sub T}(D{sup +}) = (-11.96 {+-} 10.04(stat) {+-} 4.81(syst)) x 10{sup -3} and A{sub T}(D{sub s}{sup +}) = (-13.57 {+-} 7.67(stat) {+-} 4.82(syst)) x 10{sup -3}. This search for CP violation showed that the T-odd correlations are a powerful tool to measure the CP violating observable A{sub T}. The relative simplicity of an analysis based on T-odd correlations and the high quality results that can be obtained, allow to consider this tool as fundamental to search for CP violation in four-body decays. Even if the CP violation has not been found, excluding any New Physics effect to the sensitivity of about 0.5%, it is still worth to search for CP violation in D decays. The high statistics that can be obtained at the LHC or by the proposed high luminosity B-factories, make this topic to be considered in high consideration by experiments such as LHCb, SuperB or SuperBelle. The results outlined in this thesis strongly suggest to include a similar analysis into the Physics program of these experiments.

  8. Review of direct CP violation in two and three body B decays at LHCb

    E-Print Network [OSTI]

    Marc Grabalosa Gándara

    2014-11-07

    Charmless B hadrons decays offer rich opportunities to test the Standard Model. CP violation in charmless charged two-body and three-body B decays provides ways to measure the CKM angle $\\gamma$ and to search for New Physics. Also, vector-vector final states provide additional interesting observables. Hereby, we present the latest LHCb results on hadronic charmless B decays putting emphasis on the direct CP violation measurements.

  9. Effective Field Theory and Time-Reversal Violation in Light Nuclei

    E-Print Network [OSTI]

    Mereghetti, E

    2015-01-01

    Thanks to the unnaturally small value of the QCD vacuum angle $\\bar\\theta clean connection between $T$-violating mechanisms, which can be represented by higher-dimensional operators involving SM fields and symmetries, and hadronic interactions, which allow for controlled calculations of low-energy observables involving strong interactions. The chiral properties of $T$-violating mechanisms leads to a pattern that should be identifiable in measurements of the electric dipole moments of the nucleon and light nuclei.

  10. Effective Field Theory and Time-Reversal Violation in Light Nuclei

    E-Print Network [OSTI]

    E. Mereghetti; U. van Kolck

    2015-05-23

    Thanks to the unnaturally small value of the QCD vacuum angle $\\bar\\theta clean connection between $T$-violating mechanisms, which can be represented by higher-dimensional operators involving SM fields and symmetries, and hadronic interactions, which allow for controlled calculations of low-energy observables involving strong interactions. The chiral properties of $T$-violating mechanisms leads to a pattern that should be identifiable in measurements of the electric dipole moments of the nucleon and light nuclei.

  11. PROGRESS IN ENERGY EFFICIENT BUILDINGS

    E-Print Network [OSTI]

    Wall, L.W.

    2009-01-01

    improving energy efficiency of buildings is being addressedimprovement of energy efficiency in buildings are brieflyimproving the energy efficiency of buildings in the U.S. New

  12. Energy Efficiency Indicators Methodology Booklet

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    Tracking Industrial Eneergy Efficiency and Co2 Emissions”.2000 NRCAN, 2006. Energy Efficiency Trends in Canada 1990 toCanada’s Office of Energy Efficiency, Ottawa. NRCAN, 2009.

  13. A scaler-based data acquisition system for measuring parity-violating asymmetry in deep inelastic scattering

    SciTech Connect (OSTI)

    Subedi, Ramesh R.; Wang, Diancheng; Pan, Kai; Deng, Xiaoyan; Michaels, Robert W.; Shahinyan, Albert; Wojtsekhowski, Bogdan B.; Zheng, Xiaochao

    2013-10-01

    An experiment that measured the parity violating asymmetries in deep inelastic scattering was completed at the Thomas Jefferson National Accelerator Facility in experimental Hall A. From these asymmetries, a combination of the quark weak axial charge could be extracted with a factor of five improvement in precision over world data. To achieve this, asymmetries at the 10^-4 level needed to be measured at event rates up to 500 kHz and the high pion background typical to deep inelastic scattering experiments needed to be rejected efficiently. A specialized data acquisition (DAQ) system with intrinsic particle identification (PID) was successfully developed and used: The pion contamination in the electron samples was controlled at the order of 2 × 10^-4 or below with an electron efficiency of higher than 91% throughout the production period of the experiment, the systematic uncertainty in the measured asymmetry due to DAQ deadtime was below 0.2%, and the statistical quality of the asymmetry measurement agreed with the Gaussian distribution to over five orders of magnitudes. The DAQ system is presented here with an emphasis on its design scheme, the achieved PID performance, deadtime effect and the capability of measuring small asymmetries.

  14. Violations of the ceiling principle: Exact conditions and statistical evidence

    SciTech Connect (OSTI)

    Slimowitz, J.R. ); Cohen, J.E. )

    1993-08-01

    The National Research Council recommended the use of the ceiling principle in forensic applications of DNA testing on the grounds that the ceiling principle was believed to be [open quotes]conservative,[close quotes] giving estimates greater than or equal to the actual genotype frequencies in the appropriate reference population. The authors show here that the ceiling principle can fail to be conservative in a population with two subpopulations and two loci, each with two alleles at Hardy-Weinberg equilibrium, if there is some linkage disequilibrium between loci. They also show that the ceiling principle can fail in a population with two subpopulations and a single locus with two alleles if Hardy-Weinberg equilibrium does not hold. They given explicit analytical formulas to describe when the ceiling principle fails. By showing that the ceiling principle is not always mathematically reliable, this analysis gives users of the ceiling principle the responsibility of demonstrating that it is conservative for the particular data with which it is used. Reanalysis of VNTR data bases of the FBI provides compelling evidence of two-locus associations within three major ethnic groups (Caucasian, black, and Hispanic) in the United States, even though the loci tested are located on different chromosomes. Before the ceiling principle is implemented, more research should be done to determine whether it may be violated in practice. 19 refs., 5 tabs.

  15. Isospin violating dark matter in Stückelberg portal scenarios

    E-Print Network [OSTI]

    Victor Martin-Lozano; Miguel Peiro; Pablo Soler

    2015-03-05

    Hidden sector scenarios in which dark matter (DM) interacts with the Standard Model matter fields through the exchange of massive Z' bosons are well motivated by certain string theory constructions. In this work, we thoroughly study the phenomenological aspects of such scenarios and find that they present a clear and testable consequence for direct DM searches. We show that such string motivated St\\"uckelberg portals naturally lead to isospin violating interactions of DM particles with nuclei. We find that the relations between the DM coupling to neutrons and protons for both, spin-independent (fn/fp) and spin-dependent (an/ap) interactions, are very flexible depending on the charges of the quarks under the extra U(1) gauge groups. We show that within this construction these ratios are generically different from plus and minus 1 (i.e. different couplings to protons and neutrons) leading to a potentially measurable distinction from other popular portals. Finally, we incorporate bounds from searches for dijet and dilepton resonances at the LHC as well as LUX bounds on the elastic scattering of DM off nucleons to determine the experimentally allowed values of fn/fp and an/ap.

  16. Parity Violation in Forward Angle Elastic Electron-Proton Scattering

    SciTech Connect (OSTI)

    Grady Wilson Miller, IV

    2001-01-01

    We have measured the parity-violating electroweak asymmetry in the elastic scattering of polarized electrons from the proton at Jefferson Laboratory. The kinematic point ({theta}_lab = 12.3 deg. and (Q^2) = 0.48 (GeV/c)^2) is chosen to provide sensitivity to the strange electric form factor G^s_E. A 3.36 GeV beam of longitudinally polarized electrons was scattered from protons in a liquid hydrogen target. The scattered flux was detected by a pair of spectrometers which focussed the elastically-scattered electrons onto total-absorption detectors. The detector signals were integrated and digitized by a custom data acquisition system. A feedback system reduced systematic errors by controlling helicity-correlated beam intensity differences at the sub-ppm (part per million) level. The experimental result, A = 14.5 +/- 2.0 (stat) +/- 1.1 (syst) ppm, is consistent with the electroweak Standard Model with no additional contributions from strange quarks. In particular, the measurement implies G^S_E + 0.39 G^s_M = 0.023 +/- 0.040 +/- 0.026 ({delta}G^n_E), where the last uncertainty is due to the estimated uncertainty in the neutron electric form factor G^n_E . This result represents the first experimental constraint of the strange electric form factor.

  17. CP violation and Kaon weak matrix elements from Lattice QCD

    E-Print Network [OSTI]

    Garron, Nicolas

    2015-01-01

    In this short review, I present the recent lattice computations of kaon weak matrix elements relevant to $K \\to \\pi\\pi$ decays and neutral kaon mixing. These matrix elements are key to the theoretical determination of the CP violation parameters $\\epsilon$ and $\\epsilon'$ . Impressive progress have been achieved recently, in particular the first realistic computation of $\\epsilon'/\\epsilon$ with physical kinematics has been reported in [1]. The novelty is the $\\Delta I = 1/2$ channel, whereas the $\\Delta I = 3/2$ contribution is now computed at several values of the lattice spacing and extrapolated to the continuum limit. I will also present the status of $B_K$ and discuss its error budget, with a particular emphasis on the perturbative error. Finally I will review the matrix elements of neutral kaon mixing beyond the standard model and will argue that the discrepancy observed by different collaborations could be explained by the renormalisation procedure of the relevant four-quark operators.

  18. Lepton Flavor Violation in Predictive SUSY-GUT Models

    SciTech Connect (OSTI)

    Albright, Carl H.; /Northern Illinois U. /Fermilab; Chen, Mu-Chun; /UC, Irvine

    2008-02-01

    There have been many theoretical models constructed which aim to explain the neutrino masses and mixing patterns. While many of the models will be eliminated once more accurate determinations of the mixing parameters, especially sin{sup 2} 2{theta}{sub 13}, are obtained, charged lepton flavor violation (LFV) experiments are able to differentiate even further among the models. In this paper, they investigate various rare LFV processes, such as {ell}{sub i} {yields} {ell}{sub j} + {gamma} and {mu} - e conversion, in five predictive SUSY SO(10) models and their allowed soft SUSY breaking parameter space in the constrained minimal SUSY standard model (CMSSM). Utilizing the WMAP dark matter constraints, they obtain lower bounds on the branching ratios of these rare processes and find that at least three of the five models they consider give rise to predictions for {mu} {yields} e + {gamma} that will be tested by the MEG collaboration at PSI. in addition, the next generation {mu} - e conversion experiment has sensitivity to the predictions of all five models, making it an even more robust way to test these models. While generic studies have emphasized the dependence of the branching ratios of these rare processes on the reactor neutrino angle, {theta}{sub 13}, and the mass of the heaviest right-handed neutrino, M{sub 3}, they find very massive M{sub 3} is more significant than large {theta}{sub 13} in leading to branching ratios near to the present upper limits.

  19. Searches for CP violation in two-body charm decays

    E-Print Network [OSTI]

    Alexander, Michael

    2015-01-01

    The LHCb experiment recorded data corresponding to an integrated luminosity of 3.0 $fb^{-1}$ during its first run of data taking. These data yield the largest samples of charmed hadrons in the world and are used to search for CP violation in the $D^0$ system. Among the many measurements performed at LHCb, a measurement of the direct CP asymmetry in $D^0 \\rightarrow K_S^0 K_S^0$ decays is presented and is found to be $A_{CP}(D^0 \\rightarrow K_S^0 K_S^0) = (-2.9 \\pm 5.2 \\pm 2.2)\\, \\%, $ where the first uncertainty is statistical and the second systematic. This represents a significant improvement in precision over the previous measurement of this parameter. Measurements of the parameter $A^\\Gamma$, defined as the CP asymmetry of the $D^0$ effective lifetime when decaying to a CP eigenstate, are also presented. Using semi-leptonic b-hadron decays to tag the flavour of the $D^0$ meson at production with the $K^+K^-$ and $\\pi^+\\pi^-$ final states yields $A^\\Gamma(K^+K^-) = (-0.134 \\pm 0.077^{+0.026}_{-0.034})\\, \\%...

  20. Robust Limits on Lorentz Violation from Gamma-Ray Bursts

    E-Print Network [OSTI]

    John Ellis; Nick E. Mavromatos; Dimitri V. Nanopoulos; Alexander S. Sakharov; Edward K. G. Sarkisyan

    2005-10-06

    We constrain the possibility of a non-trivial refractive index in free space corresponding to an energy-dependent velocity of light: c(E) \\simeq c_0 (1 - E/M), where M is a mass scale that might represent effect of quantum-gravitational space-time foam, using the arrival times of sharp features observed in the intensities of radiation with different energies from a large sample of gamma-ray bursters (GRBs) with known redshifts. We use wavelet techniques to identify genuine features, which we confirm in simulations with artificial added noise. Using the weighted averages of the time-lags calculated using correlated features in all the GRB light curves, we find a systematic tendency for more energetic photons to arrive earlier. However, there is a very strong correlation between the parameters characterizing an intrinsic time-lag at the source and a distance-dependent propagation effect. Moreover, the significance of the earlier arrival times is less evident for a subsample of more robust spectral structures. Allowing for intrinsic stochastic time-lags in these features, we establish a statistically robust lower limit: M > 0.9x10^{16} GeV on the scale of violation of Lorentz invariance.

  1. Efficiency of Fish Propulsion

    E-Print Network [OSTI]

    Maertens, A P; Yue, D K P

    2014-01-01

    It is shown that the system efficiency of a self-propelled flexible body is ill-defined unless one considers the concept of quasi-propulsive efficiency, defined as the ratio of the power needed to tow a body in rigid-straight condition over the power it needs for self-propulsion, both measured for the same speed. Through examples we show that the quasi-propulsive efficiency is the only rational non-dimensional metric of the propulsive fitness of fish and fish-like mechanisms. Using two-dimensional viscous simulations and the concept of quasi-propulsive efficiency, we discuss the efficiency two-dimensional undulating foils. We show that low efficiencies, due to adverse body-propulsor hydrodynamic interactions, cannot be accounted for by the increase in friction drag.

  2. Insight From Efficiency Maine

    Broader source: Energy.gov [DOE]

    Presents an in-depth look at Efficiency Maine's transition to weatherization financing, its PowerSaver program, and much more.

  3. Efficient Water Use & Management

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

    Water Use Goal 4: Efficient Water Use & Management Aware of the arid climate of northern New Mexico, water reduction and conservation remains a primary concern at LANL. Energy...

  4. Energy Efficient Digital Networks

    E-Print Network [OSTI]

    Lanzisera, Steven

    2014-01-01

    equipment, market transformation for digital networks iimarket transformation of energy efficient digital networks.transformation activities. Table 7: Transforming the Network for Digital

  5. Appliance Efficiency Regulations

    Broader source: Energy.gov [DOE]

    Note: The federal government has imposed and updated appliance efficiency standards through several legislative acts,* and now has standards in place or under development for 30 classes of...

  6. Bearwall Energy Efficient Solutions 

    E-Print Network [OSTI]

    Sovero,M.

    2014-01-01

    , 2014 ENERGY EFFICIENT SOLUTIONS ESL-KT-14-11-06 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Brief History of Bearwall… Who We Are: ? Manuel Sovero ? Luis Osorio Energy Conservation Experience: ESL-KT-14-11-06 CATEE 2014...: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Energy Programs… ESL-KT-14-11-06 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 Bearwall Methodology… Introduction of Bearwall to the Local Authorities ESL...

  7. ENERGY EFFICIENCY TECHNOLOGY ROADMAP

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

    managed the overall development and maturation of this Energy Efficiency Technology Roadmap, the effort would not have been possible without the active engagement of a diverse...

  8. Energy Efficiency Resource Standard

    Office of Energy Efficiency and Renewable Energy (EERE)

    Washington voters passed Initiative 937 in 2006, creating a renewable energy standard and an energy efficiency resource standard for the state's electric utilities. Initiative 937, enacted as th...

  9. Energy Efficiency Title

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

    (O&M) practices and capital measures. The program strategy differs from traditional energy-efficiency programs in that it focuses on implementing a holistic energy-management...

  10. CIBO Energy Efficiency Handbook

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

    CIBO ENERGY EFFICIENCY HANDBOOK COUNCIL OF INDUSTRIAL BOILER OWNERS (CIBO) 6035 BURKE CENTRE PARKWAY, SUITE 360 BURKE, VA 22015 EDITED BY RONALD A. ZEITZ Notice of Disclaimer This...

  11. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy 2010 Fuel Cell Project Kick-off Dr. Dimitrios, 2010September 28, 2010 #12;Administration's Clean Energy Goals Double Renewable Energy Capacity by 2012

  12. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy Overview of Hydrogen and Fuel Cell Activities Richard Farmer Hydrogen Business Council September 14, 2010 #12; Double Renewable Energy Capacity by 2012 Invest $150

  13. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy AUGUST 2010 2009 WIND TECHNOLOGIES MARKET REPORT EXECUTIVE (Berkeley Lab) Kevin Porter and Sari Fink (Exeter Associates) Suzanne Tegen (National Renewable Energy

  14. Battery Charger Efficiency

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

    Battery Charger Efficiency Issues with Marine and Recreational Vehicle Battery Chargers Marine and RV battery chargers differ from power tool and small appliance chargers CEC...

  15. SEPTEMBER 2009 ENERGY EFFICIENCY &

    E-Print Network [OSTI]

    Kammen, Daniel M.

    Summary Improving energy efficiency in buildings is central to combating climate change, with more thanSEPTEMBER 2009 GUIDE TO ENERGY EFFICIENCY & RENEWABLE ENERGY FINANCING DISTRICTS FOR LOCAL for Renewable and Sustainable Technology BPI Building Performance Institute CEAD Clean Energy Assessment

  16. Essays on Efficiency Analysis 

    E-Print Network [OSTI]

    Asava-Vallobh, Norabajra

    2010-07-14

    in determining efficiency scores. This implies that one may not need access to panel data on individual scores to study school efficiency. My final essay applies a standard DEA model and the Malmquist productivity index to commercial banks in Thailand in order...

  17. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy Energy Overview & A Perspective on Fuel Cell Technologies Dr; Double Renewable Energy Capacity by 2012 Invest $150 billion over ten years in energy R&D to transition$Thousands Budget History Energy Efficiency and Renewable Energy (EERE) Budget History FY2004-FY2011 (requested) U

  18. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy Overview of DOE Hydrogen and Fuel Cell Activities Dr. Sunita Satyapal Program Manager U.S. Department of Energy Fuel Cell Technologies Program DOE-DOD MOU Workshop September 30, 2010 #12;2 Fuel Cells: Addressing Energy Challenges Energy Efficiency and Resource Diversity

  19. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy Overview of Hydrogen and Fuel Cell Activities Dr. Sunita of Energy Military Energy and Alternative Fuels Conference March 17-18, 2010 San Diego, CA #12;2 1. Overview;3 Fuel Cells: Addressing Energy Challenges Energy Efficiency and Resource Diversity Fuel cells offer

  20. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy Audience/Event Date EERE Fuel Cell Technologies Program Sunita Satyapal Acting Program Manager U.S. Department of Energy Fuel Cell Technologies Program Fuel Cell Project Kickoff September 30, 2009 #12;2 Fuel Cells: Addressing Energy Challenges Energy Efficiency and Resource

  1. Eco-efficient waste glass recycling: Integrated waste management and green product development through LCA

    SciTech Connect (OSTI)

    Blengini, Gian Andrea, E-mail: blengini@polito.it [DISPEA - Department of Production Systems and Business Economics, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin (Italy); CNR-IGAG, Institute of Environmental Geology and Geo-Engineering, Corso Duca degli Abruzzi 24, 10129 Turin (Italy); Busto, Mirko, E-mail: mirko.busto@polito.it [DISPEA - Department of Production Systems and Business Economics, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin (Italy); Fantoni, Moris, E-mail: moris.fantoni@polito.it [DITAG - Department of Land, Environment and Geo-Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin (Italy); Fino, Debora, E-mail: debora.fino@polito.it [DISMIC - Department of Materials Science and Chemical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin (Italy)

    2012-05-15

    Highlights: Black-Right-Pointing-Pointer A new eco-efficient recycling route for post-consumer waste glass was implemented. Black-Right-Pointing-Pointer Integrated waste management and industrial production are crucial to green products. Black-Right-Pointing-Pointer Most of the waste glass rejects are sent back to the glass industry. Black-Right-Pointing-Pointer Recovered co-products give more environmental gains than does avoided landfill. Black-Right-Pointing-Pointer Energy intensive recycling must be limited to waste that cannot be closed-loop recycled. - Abstract: As part of the EU Life + NOVEDI project, a new eco-efficient recycling route has been implemented to maximise resources and energy recovery from post-consumer waste glass, through integrated waste management and industrial production. Life cycle assessment (LCA) has been used to identify engineering solutions to sustainability during the development of green building products. The new process and the related LCA are framed within a meaningful case of industrial symbiosis, where multiple waste streams are utilised in a multi-output industrial process. The input is a mix of rejected waste glass from conventional container glass recycling and waste special glass such as monitor glass, bulbs and glass fibres. The green building product is a recycled foam glass (RFG) to be used in high efficiency thermally insulating and lightweight concrete. The environmental gains have been contrasted against induced impacts and improvements have been proposed. Recovered co-products, such as glass fragments/powders, plastics and metals, correspond to environmental gains that are higher than those related to landfill avoidance, whereas the latter is cancelled due to increased transportation distances. In accordance to an eco-efficiency principle, it has been highlighted that recourse to highly energy intensive recycling should be limited to waste that cannot be closed-loop recycled.

  2. Parity Violating Measurements of Neutron Densities: Implications for Neutron Stars

    E-Print Network [OSTI]

    C. J. Horowitz; J. Piekarewicz

    2002-01-08

    Parity violating electron scattering can measure the neutron density of a heavy nucleus accurately and model independently. This is because the weak charge of the neutron is much larger then that of the proton. The Parity Radius Experiment (PREX) at Jefferson Laboratory aims to measure the root mean square neutron radius of $^{208}$Pb with an absolute accuracy of 1% ($\\pm 0.05$ Fm). This is more accurate then past measurements with hadronic probes, which all suffer from controversial strong interaction uncertainties. PREX should clearly resolve the neutron-rich skin. Furthermore, this benchmark value for $^{208}$Pb will provide a calibration for hadronic probes, such as proton scattering, which can then be used to measure neutron densities of many exotic nuclei. The PREX result will also have many implications for neutron stars. The neutron radius of Pb depends on the pressure of neutron-rich matter: the greater the pressure, the larger the radius as neutrons are pushed out against surface tension. The same pressure supports a neutron star against gravity. The Pb radius is sensitive to the equation of state at normal densities while the radius of a 1.4 solar mass neutron star also depends on the equation of state at higher densities. Measurements of the radii of a number of isolated neutron stars such as Geminga and RX J185635-3754 should soon improve significantly. By comparing the equation of state information from the radii of both Pb and neutron stars one can search for a softening of the high density equation of state from a phase transition to an exotic state. Possibilities include kaon condensates, strange quark matter or color superconductors.

  3. Cartan's Supersymmetry and the violation of CP symmetry

    E-Print Network [OSTI]

    Sadataka Furui

    2015-08-14

    Cartan's supersymmetriy fixes couplings of two types of fermions $\\psi, \\phi$ and two types of vector fields $x_i$ and $x_{i'}$, ($i=1,2,3,4$). The electromagnetic interaction of leptons and quarks is expressed as ${^t\\psi}{\\mathcal C}x_i\\psi$. In the case of coupling of leptons and quarks with $W$, we extend the coupling ${^t\\phi}{\\mathcal C}X\\psi$ to ${^t\\phi}{\\mathcal C}X(1-\\gamma_5)\\psi$, where $X=x_i$ or ${x_i}'$, and unify the interactions in the form \\[ {^t\\phi}{\\mathcal C}\\bar{x_i}\\psi+{^t\\phi}{\\mathcal C} \\bar{{x_i}'} {\\mathcal C}\\psi \\] where $\\bar{x_i}$ implies appropriate $x_i$ or $(-\\gamma_5 x_i)$ is chosen. The $\\gamma_5$ term induces in time component of $B^0\\to K^0\\, J/\\Psi$, $K^0$ with the $\\bar s$ quark dominated by the small component, while in space components of $\\bar B^0\\to \\bar K^0\\, J/\\Psi$, $\\bar K^0$ with the $s$ quark dominated by the small component. This asymmetry could be the origin of the $CP$ asymmetry in the $B^0\\to K^0\\, J/\\Psi$. We apply the model to the $B^0(\\bar B^0)$ decay to $K^0+J/\\Psi (\\bar K^0+J/\\Psi)$ and $B_{s(d)}^0\\to D_{s(d)}^- D_{s(d)}^+$ decays and study violation of $CP$ symmetry.

  4. Energy Efficiency: A Priority 

    E-Print Network [OSTI]

    Patenaude, R.

    2013-01-01

    stream_source_info ESL-IC-13-10-49.pdf.txt stream_content_type text/plain stream_size 6770 Content-Encoding ISO-8859-1 stream_name ESL-IC-13-10-49.pdf.txt Content-Type text/plain; charset=ISO-8859-1 Energy Efficiency: A... Priority October 9th 2013 2 Energy efficiency: a priority NBC profile (April 30th, 2013) 1st financial institution in Quebec 19 920 employees 451 branches in Canada 2,4 million individual clients 3 Energy efficiency: a priority Energenia?s profile...

  5. Energy Efficiency Program Overview 

    E-Print Network [OSTI]

    Mutiso,S.

    2014-01-01

    stream_source_info ESL-KT-14-11-02.pdf.txt stream_content_type text/plain stream_size 9715 Content-Encoding UTF-8 stream_name ESL-KT-14-11-02.pdf.txt Content-Type text/plain; charset=UTF-8 Energy Efficiency Program... Overview Clean Air Through Energy Efficiency CATEE Conference November 18-20, 2014 Dallas, TX ESL-KT-14-11-02 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 General Overview • State of Texas enacted legislation requiring...

  6. The Efficient Windows Collaborative

    SciTech Connect (OSTI)

    Petermann, Nils

    2006-03-31

    The Efficient Windows Collaborative (EWC) is a coalition of manufacturers, component suppliers, government agencies, research institutions, and others who partner to expand the market for energy efficient window products. Funded through a cooperative agreement with the U.S. Department of Energy, the EWC provides education, communication and outreach in order to transform the residential window market to 70% energy efficient products by 2005. Implementation of the EWC is managed by the Alliance to Save Energy, with support from the University of Minnesota and Lawrence Berkeley National Laboratory.

  7. Energy Efficient Upgrades

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities Energy EfficiencyModularEfficiency:IndustrialEfficient

  8. Eikonal approximation, Finsler structures, and implications for Lorentz-violating photons in weak gravitational fields

    E-Print Network [OSTI]

    M. Schreck

    2015-08-02

    The current article shall contribute to understanding the classical analogue of the minimal photon sector in the Lorentz-violating Standard-Model Extension (SME). It is supposed to complement all studies performed on classical point-particle equivalents of SME fermions. The classical analogue of a photon is not a massive particle being described by a usual equation of motion, but a geometric ray underlying the eikonal equation. The first part of the paper will set up the necessary tools to understand this correspondence for interesting cases of the minimal SME photon sector. In conventional optics the eikonal equation follows from an action principle, which is demonstrated to work in most (but not all) Lorentz-violating cases as well. The integrands of the action functional correspond to Finsler structures, which establishes the connection to Finsler geometry. The second part of the article treats Lorentz-violating light rays in a weak gravitational background by implementing the principle of minimal coupling. Thereby it is shown how Lorentz violation in the photon sector can be constrained by measurements of light bending at massive bodies such as the Sun. The phenomenological studies are based on the currently running ESA mission GAIA and the planned NASA/ESA mission LATOR. The final part of the paper discusses certain aspects of explicit Lorentz violation in gravity based on the setting of Finsler geometry.

  9. Ba{anti B}ar status report on the design of a detector for the study of CP violation at PEP-II at SLAC

    SciTech Connect (OSTI)

    Not Available

    1993-06-01

    Experiments designed to measure CP-violating asymmetries in the B meson system must emphasize exclusive state reconstruction with the highest possible resolution and efficiency. In the case of B{sup 0} mesons produced in pairs at the {Upsilon}(4S) resonance at an asymmetric e{sup +}e{sup {minus}} storage ring, this capability must be accompanied by precise vertex reconstruction in the direction of the e{sup +}e{sup {minus}} beams (henceforth the z direction). These are difficult requirements, beyond the scope of any existing storage ring detector. The challenge of designing an asymmetric storage ring capable of producing the large number of neutral B meson pairs required to measure CP-violating asymmetries in decays to CP eigenstates has been handsomely met in the PEP-II design. As the first asymmetric e{sup +}e{sup {minus}} storage ring, PEP-II presents a novel set of experimental challenges to a 4{pi} detector. This Status Report describes the design of a new detector fully capable of exploiting the physics opportunities provided by PEP-II.

  10. Energy Efficient Digital Networks

    E-Print Network [OSTI]

    Lanzisera, Steven

    2014-01-01

    A: Reference List 1E. 2009. PC Energy Report 2009. http://Interfaces to Reduce PC Energy Usage. Presented at UseNIXPaxson. 2007. Enabling an Energy-Efficient Future Internet

  11. Residential Energy Efficiency Solutions

    Broader source: Energy.gov [DOE]

    Our mission is to increase the availability of high-quality, safe, affordable and workforce housing options. Through innovative reuse and rehabilitation we incorporate economic benefits, environmental stewardship/energy efficiency, and social solutions.

  12. Energy Efficient Buildings Hub

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy created the Energy Efficient Buildings Hub in Philadelphia, Pennsylvania to promote regional job creation and economic growth while also improving the energy...

  13. EFFICIENT OXYGEN SEPARATION MEMBRANE

    E-Print Network [OSTI]

    Mucina, Ladislav

    EFFICIENT OXYGEN SEPARATION MEMBRANE Summary of technology Oxygen can be separated from air using a uniquely structured ceramic ion transport membrane for oxygen separation thatshowsremarkablyhighflux © Curtin University 2013 Gas diffusion in conventional membrane Gas diffusion in new membrane New membrane

  14. ENERGY EFFICIENCY TECHNOLOGY ROADMAP

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

    n E n v e l o p e This document is one component of the Energy Efficiency Technology Roadmap (EE Roadmap), published by the Bonneville Power Administration (BPA) on behalf of...

  15. ENERGY EFFICIENCY TECHNOLOGY ROADMAP

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

    3 : L i g h t i n g This document is one component of the Energy Efficiency Technology Roadmap (EE Roadmap), published by the Bonneville Power Administration (BPA) on behalf of...

  16. Energy Efficiency Resource Standards

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Illinois Power Agency Act (IPAA), enacted in 2007, created energy efficiency and demand response programs in Illinois. Under the IPAA, electric utilities are required to demonstrate 2% annual...

  17. Defining engine efficiency limits

    Broader source: Energy.gov [DOE]

    Investigates the potential to reduce engine efficiency losses and how this impacts the entire system in terms of a direct increase in work output or a change in the loss mechanism.

  18. Premium Efficient Motors 

    E-Print Network [OSTI]

    Moser, P. R.

    1984-01-01

    MOTORS Paul R. Moser Baldor Electric Co. Fort Smith, Arkansas , ABSTRACT Premium efficient motors are available which convert electrical energy into mechanical energy with fewer losses than the more standard motors. The fewer losses...

  19. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy Source: US DOE 10/2010 Hydrogen and Fuel Cell Technologies ­ Upcoming Workshops & Solicitations Source: US DOE 10/2010 2 #12; Double Renewable Energy Capacity by 2012

  20. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy 2009 FUEL CELL MARKET REPORT NOVEMBER 2010 #12;Authors-Jerram of Fuel Cell Today Consulting, Rachel Gelman of the National Renewable Energy Laboratory, Jennifer Gangi

  1. Energy Efficiency Product Standards

    Broader source: Energy.gov [DOE]

    New Jersey Energy Efficiency Product Standards, enacted in 2005, include minimum standards for eight products, which were preempted by the federal Energy Policy Act of 2005. Future standards, if...

  2. Energy Efficiency Trust Fund

    Office of Energy Efficiency and Renewable Energy (EERE)

    Additional funds may be accumulated through non-compliance fees as part of the Energy Efficiency Portfolio Standard (EEPS). For both natural gas and electric utilities, failure to submit an energ...

  3. Energy Efficiency Title

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities Energy EfficiencyModularEfficiency: Beyond

  4. Energy Efficiency Upgrades

    SciTech Connect (OSTI)

    Roby Williams

    2012-03-29

    The energy efficiency upgrades project at Hardin County General Hospital did not include research nor was it a demonstration project. The project enabled the hospital to replace outdated systems with modern efficient models. Hardin County General Hospital is a 501c3, nonprofit hospital and the sole community provider for Hardin and Pope Counties of Illinois. This project provided much needed equipment and facility upgrades that would not have been possible through locally generated funding. Task 1 was a reroofing of the hospital. The hospital architect designed the replacement to increase the energy efficiency of the hospital roof/ceiling structure. Task 2 was replacement and installation of a new more efficient CT scanner for the hospital. Included in the project was replacement of HVAC equipment for the entire radiological suite. Task 5 was a replacement and installation of a new higher capacity diesel-fueled emergency generator for the hospital replacing a 50+ year old gas-fired generator. Task 7 was the replacement of 50+ year-old walk-in cooler/freezer with a newer, energy efficient model. Task 8 was the replacement of 10+ year-old washing machines in the hospital laundry with higher capacity, energy efficient models. Task 9 was replacement of 50-year old single pane curtain window system with double-pane insulated windows. Additionally, insulation was added around ventilation systems and the curtain wall system.

  5. Efficient Windows Collaborative

    SciTech Connect (OSTI)

    Nils Petermann

    2010-02-28

    The project goals covered both the residential and commercial windows markets and involved a range of audiences such as window manufacturers, builders, homeowners, design professionals, utilities, and public agencies. Essential goals included: (1) Creation of 'Master Toolkits' of information that integrate diverse tools, rating systems, and incentive programs, customized for key audiences such as window manufacturers, design professionals, and utility programs. (2) Delivery of education and outreach programs to multiple audiences through conference presentations, publication of articles for builders and other industry professionals, and targeted dissemination of efficient window curricula to professionals and students. (3) Design and implementation of mechanisms to encourage and track sales of more efficient products through the existing Window Products Database as an incentive for manufacturers to improve products and participate in programs such as NFRC and ENERGY STAR. (4) Development of utility incentive programs to promote more efficient residential and commercial windows. Partnership with regional and local entities on the development of programs and customized information to move the market toward the highest performing products. An overarching project goal was to ensure that different audiences adopt and use the developed information, design and promotion tools and thus increase the market penetration of energy efficient fenestration products. In particular, a crucial success criterion was to move gas and electric utilities to increase the promotion of energy efficient windows through demand side management programs as an important step toward increasing the market share of energy efficient windows.

  6. Sudden violation of the CHSH inequality in a two qubits system

    E-Print Network [OSTI]

    Mazzola, Laura

    2010-01-01

    I study the dynamics of the violation of the CHSH inequality for two qubits interacting with a common zero-temperature non-Markovian environment. I demonstrate sudden violation of the inequality for two qubits initially prepared in a factorized state. Due to the strong coupling between the qubits and the reservoir, the dynamics is characterized by numerous sharp revivals. Furthermore I focus on a more realistic physical system in which the spontaneous emission for the qubits is taken into account. When including spontaneous emission even for small decay parameters, revivals in the violation are heavily damped out. If the decay rates exceed a certain threshold, the inequality turns out to be always satisfied.

  7. Sudden violation of the CHSH inequality in a two qubits system

    E-Print Network [OSTI]

    Laura Mazzola

    2010-02-04

    I study the dynamics of the violation of the CHSH inequality for two qubits interacting with a common zero-temperature non-Markovian environment. I demonstrate sudden violation of the inequality for two qubits initially prepared in a factorized state. Due to the strong coupling between the qubits and the reservoir, the dynamics is characterized by numerous sharp revivals. Furthermore I focus on a more realistic physical system in which the spontaneous emission for the qubits is taken into account. When including spontaneous emission even for small decay parameters, revivals in the violation are heavily damped out. If the decay rates exceed a certain threshold, the inequality turns out to be always satisfied.

  8. Violations of Lorentz invariance in the neutrino sector: an improved analysis of anomalous threshold constraints

    SciTech Connect (OSTI)

    Maccione, Luca; Liberati, Stefano; Mattingly, David M. E-mail: liberati@sissa.it

    2013-03-01

    Recently there has been a renewed activity in the physics of violations of Lorentz invariance in the neutrino sector. Flavor dependent Lorentz violation, which generically changes the pattern of neutrino oscillations, is extremely tightly constrained by oscillation experiments. Flavor independent Lorentz violation, which does not introduce new oscillation phenomena, is much more weakly constrained with constraints coming from time of flight and anomalous threshold analyses. We use a simplified rotationally invariant model to investigate the effects of finite baselines and energy dependent dispersion on anomalous reaction rates in long baseline experiments and show numerically that anomalous reactions do not necessarily cut off the spectrum quite as sharply as currently assumed. We also present a revised analysis of how anomalous reactions can be used to cast constraints from the observed atmospheric high energy neutrinos and the expected cosmogenic ones.

  9. Search for a Lorentz-violating sidereal signal with atmospheric neutrinos in IceCube

    SciTech Connect (OSTI)

    IceCube; etal, Abbasi, R,

    2010-11-11

    A search for sidereal modulation in the flux of atmospheric muon neutrinos in IceCube was performed. Such a signal could be an indication of Lorentz-violating physics. Neutrino oscillationmodels, derivable from extensions to the Standard Model, allow for neutrino oscillations that depend on the neutrino's direction of propagation. No such direction-dependent variation was found. Adiscrete Fourier transform method was used to constrain the Lorentz and CPT-violating coefficients in one of these models. Due to the unique high energy reach of IceCube, it was possible to improveconstraints on certain Lorentz-violating oscillations by three orders of magnitude with respect to limits set by other experiments.

  10. Top quark three-body decays in the R-parity violating MSSM

    SciTech Connect (OSTI)

    Heng Zhaoxia; Yang Jinmin [Key Laboratory of Frontiers in Theoretical Physics, Institute of Theoretical Physics, Academia Sinica, Beijing 100190 (China); Lu Gongru; Wu Lei [College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007 (China)

    2009-05-01

    In the minimal supersymmetric standard model the R-parity violating interactions can trigger various exotic three-body decays for the top quark, which may be accessible at the LHC. In this work we examine the R-violating decays t{yields}cX{sub 1}X{sub 2}, which include the tree-level processes t{yields}cl{sub i}{sup -}l{sub j}{sup +} (l{sub i}=e, {mu}, {tau}) and t{yields}cd{sub i}d{sub j} (d{sub i}=d, s, b), as well as the loop-induced processes t{yields}cgX (X=g, {gamma}, Z, h). We find that the hereto weakly constrained R-violating couplings can render the decay branching ratios quite sizable, some of which already reach the sensitivity of the Tevatron collider and can be explored at the LHC with better sensitivity.

  11. Fermion scattering off a [ital CP]-violating electroweak bubble wall

    SciTech Connect (OSTI)

    Funakubo, K.; Kakuto, A.; Otsuki, S.; Takenaga, K.; Toyoda, F. (Department of Physics, Saga University, Saga 840 (Japan) Department of Liberal Arts, Kinki University in Kyushu, Iizuka 820 (Japan) Department of Physics, Kyushu University, Fukuoka 812 (Japan))

    1994-07-15

    A general prescription to solve the Dirac equation in the presence of a [ital CP]-violating electroweak bubble wall is presented. The profile of the bubble wall is not specified except that the wall height is [ital m][sub 0] and zero deep in the broken- and the symmetric-phase regions, respectively, where [ital m][sub 0] is a fermion mass given by the Higgs vacuum, expectation value and the Yukawa coupling. The [ital CP]-violating effects are evaluated by regarding the [ital CP]-violating part of the bubble wall as a perturbation to [ital CP]-conserving solutions. The basic quantity [ital R][sub [ital R][r arrow][ital L

  12. Measurement of parity-violating asymmetry in electron-deuteron inelastic scattering

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

    Wang, D.; Pan, K.; Subedi, R.; Ahmed, Z.; Allada, K.; Aniol, K. A.; Armstrong, D. S.; Arrington, J.; Bellini, V.; Beminiwattha, R.; et al

    2015-04-01

    The parity-violating asymmetries between a longitudinally-polarized electron beam and an unpolarized deuterium target have been measured recently. The measurement covered two kinematic points in the deep inelastic scattering region and five in the nucleon resonance region. We provide here details of the experimental setup, data analysis, and results on all asymmetry measurements including parity-violating electron asymmetries and those of inclusive pion production and beam-normal asymmetries. The parity-violating deep-inelastic asymmetries were used to extract the electron-quark weak effective couplings, and the resonance asymmetries provided the first evidence for quark-hadron duality in electroweak observables. These electron asymmetries and their interpretation were publishedmore »earlier, but are presented here in more detail.« less

  13. Lorentz and CPT Violation in Top-Quark Production and Decay

    E-Print Network [OSTI]

    Berger, Micheal S; Liu, Zhi

    2015-01-01

    The prospects are explored for testing Lorentz and CPT symmetry in the top-quark sector. We present the relevant Lagrange density, discuss physical observables, and describe the signals to be sought in experiments. For top-antitop pair production via quark or gluon fusion with subsequent semileptonic or hadronic decays, we obtain the matrix element in the presence of Lorentz violation using the narrow-width approximation. The issue of testing CPT symmetry in the top-quark sector is also addressed. We demonstrate that single-top production and decay is well suited to a search for CPT violation, and we present the matrix elements for single-top production in each of the four tree-level channels. Our results are applicable to searches for Lorentz violation and studies of CPT symmetry in collider experiments, including notably high-statistics top-antitop and single-top production at the Large Hadron Collider.

  14. Spontaneous CP violation in quark scattering from QCD Z(3) interfaces

    E-Print Network [OSTI]

    Abhishek Atreya; Anjishnu Sarkar; Ajit M. Srivastava

    2012-01-30

    In this paper, we explore the possibility of spontaneous CP violation in the scattering of quarks and anti-quarks from QCD Z(3) domain walls. The CP violation here arises from the nontrivial profile of the background gauge field $(A_{0})$ between different Z(3) vacua. We calculate the spatial variation of $A_{0}$ across the Z(3) interface from the profile of the Polyakov loop $L(\\vec{x})$ for the Z(3) interface and calculate the reflection of quarks and antiquarks using the Dirac equation. This spontaneous CP violation has interesting consequences for the relativistic heavy-ion collision experiments, such as baryon enhancement at high $P_{T}$. It also acts as a source of additional J/$\\psi$ suppression. We also discuss its implications for the early universe.

  15. Probing CP violation signal at DUNE in presence of non-standard neutrino interactions

    E-Print Network [OSTI]

    Masud, Mehedi; Mehta, Poonam

    2015-01-01

    We discuss the impact of non-standard neutrino matter interactions (NSI) in propagation on the determination of CP phase in the context of the long baseline accelerator experiments such as Deep Underground Neutrino Experiment (DUNE). DUNE will mainly address the issue of CP violation in the leptonic sector. Here we study the role of NSI and its impact on the question of observing the CP violation signal at DUNE. We consider two scenarios of oscillation with three active neutrinos in absence and presence of NSI. We elucidate the importance of ruling out subdominant new physics effects introduced by NSI in inferring CP violation signal at DUNE by considering NSI terms collectively as well as by exploiting the non-trivial interplay of moduli and phases of the NSI terms. We demonstrate the existence of NSI-SI degeneracies which need to be eliminated in reliable manner in order to make conclusive statements about the CP phase.

  16. Measurement of Parity-Violating Asymmetry in Electron-Deuteron Inelastic Scattering

    E-Print Network [OSTI]

    D. Wang; K. Pan; R. Subedi; Z. Ahmed; K. Allada; K. A. Aniol; D. S. Armstrong; J. Arrington; V. Bellini; R. Beminiwattha; J. Benesch; F. Benmokhtar; W. Bertozzi; A. Camsonne; M. Canan; G. D. Cates; J. -P. Chen; E. Chudakov; E. Cisbani; M. M. Dalton; C. W. de Jager; R. De Leo; W. Deconinck; X. Deng; A. Deur; C. Dutta; L. El Fassi; J. Erler; D. Flay; G. B. Franklin; M. Friend; S. Frullani; F. Garibaldi; S. Gilad; A. Giusa; A. Glamazdin; S. Golge; K. Grimm; K. Hafidi; J. -O. Hansen; D. W. Higinbotham; R. Holmes; T. Holmstrom; R. J. Holt; J. Huang; C. E. Hyde; C. M. Jen; D. Jones; Hoyoung Kang; P. M. King; S. Kowalski; K. S. Kumar; J. H. Lee; J. J. LeRose; N. Liyanage; E. Long; D. McNulty; D. J. Margaziotis; F. Meddi; D. G. Meekins; L. Mercado; Z. -E. Meziani; R. Michaels; M. Mihovilovic; N. Muangma; K. E. Mesick; S. Nanda; A. Narayan; V. Nelyubin; A. Nuruzzaman; Y. Oh; D. Parno; K. D. Paschke; S. K. Phillips; X. Qian; Y. Qiang; B. Quinn; A. Rakhman; P. E. Reimer; K. Rider; S. Riordan; J. Roche; J. Rubin; G. Russo; K. Saenboonruang; A. Saha; B. Sawatzky; A. Shahinyan; R. Silwal; S. Širca; P. A. Souder; R. Suleiman; V. Sulkosky; C. M. Sutera; W. A. Tobias; G. M. Urciuoli; B. Waidyawansa; B. Wojtsekhowski; L. Ye; B. Zhao; X. Zheng

    2014-11-12

    The parity-violating asymmetries between a longitudinally-polarized electron beam and an unpolarized deuterium target have been measured recently. The measurement covered two kinematic points in the deep inelastic scattering region and five in the nucleon resonance region. We provide here details of the experimental setup, data analysis, and results on all asymmetry measurements including parity-violating electron asymmetries and those of inclusive pion production and beam-normal asymmetries. The parity-violating deep-inelastic asymmetries were used to extract the electron-quark weak effective couplings, and the resonance asymmetries provided the first evidence for quark-hadron duality in electroweak observables. These electron asymmetries and their interpretation were published earlier, but are presented here in more detail.

  17. High Efficiency, Clean Combustion

    SciTech Connect (OSTI)

    Donald Stanton

    2010-03-31

    Energy use in trucks has been increasing at a faster rate than that of automobiles within the U.S. transportation sector. According to the Energy Information Administration (EIA) Annual Energy Outlook (AEO), a 23% increase in fuel consumption for the U.S. heavy duty truck segment is expected between 2009 to 2020. The heavy duty vehicle oil consumption is projected to grow between 2009 and 2050 while light duty vehicle (LDV) fuel consumption will eventually experience a decrease. By 2050, the oil consumption rate by LDVs is anticipated to decrease below 2009 levels due to CAFE standards and biofuel use. In contrast, the heavy duty oil consumption rate is anticipated to double. The increasing trend in oil consumption for heavy trucks is linked to the vitality, security, and growth of the U.S. economy. An essential part of a stable and vibrant U.S. economy is a productive U.S. trucking industry. Studies have shown that the U.S. gross domestic product (GDP) is strongly correlated to freight transport. Over 90% of all U.S. freight tonnage is transported by diesel power and over 75% is transported by trucks. Given the vital role that the trucking industry plays in the economy, improving the efficiency of the transportation of goods was a central focus of the Cummins High Efficient Clean Combustion (HECC) program. In a commercial vehicle, the diesel engine remains the largest source of fuel efficiency loss, but remains the greatest opportunity for fuel efficiency improvements. In addition to reducing oil consumption and the dependency on foreign oil, this project will mitigate the impact on the environment by meeting US EPA 2010 emissions regulations. Innovation is a key element in sustaining a U.S. trucking industry that is competitive in global markets. Unlike passenger vehicles, the trucking industry cannot simply downsize the vehicle and still transport the freight with improved efficiency. The truck manufacturing and supporting industries are faced with numerous challenges to reduce oil consumption and greenhouse gases, meet stringent emissions regulations, provide customer value, and improve safety. The HECC program successfully reduced engine fuel consumption and greenhouse gases while providing greater customer valve. The US EPA 2010 emissions standard poses a significant challenge for developing clean diesel powertrains that meet the DoE Vehicle Technologies Multi-Year Program Plan (MYPP) for fuel efficiency improvement while remaining affordable. Along with exhaust emissions, an emphasis on heavy duty vehicle fuel efficiency is being driven by increased energy costs as well as the potential regulation of greenhouse gases. An important element of the success of meeting emissions while significantly improving efficiency is leveraging Cummins component technologies such as fuel injection equipment, aftertreatment, turbomahcinery, electronic controls, and combustion systems. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 55% peak brake thermal efficiency for the engine plus aftertreatment system. The first step in developing high efficiency clean products has been supported by the DoE co-sponsored HECC program. The objectives of the HECC program are: (1) To design and develop advanced diesel engine architectures capable of achieving US EPA 2010 emission regulations while improving the brake thermal efficiency by 10% compared to the baseline (a state of the art 2007 production diesel engine). (2) To design and develop components and subsystems (fuel systems, air handling, controls, etc) to enable construction and development of multi-cylinder engines. (3) To perform an assessment of the commercial viability of the newly developed engine technology. (4) To specify fuel properties conducive to improvements in emissions, reliability, and fuel efficiency for engines using high-efficiency clean combustion (HECC) technologies. To demonstrate the technology is compatible with B2

  18. Efficiency Nova Scotia Releases Energy Efficiency Mobile App...

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

    chairs, and a window looking outside. Better Buildings Residential Network member Efficiency Nova Scotia recently released Spot it-an energy efficiency game app for mobile...

  19. Eco-efficiency Indicators: Measuring Resource-use Efficiency...

    Open Energy Info (EERE)

    Eco-efficiency Indicators: Measuring Resource-use Efficiency and the Impact of Economic Activities on the Environment Jump to: navigation, search Tool Summary LAUNCH TOOL Name:...

  20. B(s) Mixing, Delta Gamma(s) and CP Violation at the Tevatron

    SciTech Connect (OSTI)

    Di Giovanni, Gian Piero; /Paris U., VI-VII

    2008-05-01

    The authors discuss the results from the Tevatron experiments on mixing and CP violation in the B{sub s}{sup 0}-{bar B}{sub s}{sup 0} system, with particular emphasis to the updated measurements of the decay-width difference {Delta}{Lambda}{sub s} and the first measurement of the CP-violating phase {beta}{sub s} using flavor tagging information. They also briefly review the charge asymmetry measurements in semileptonic B{sub s}{sup 0} decays and in B{sup {+-}} {yields} J/{psi}K{sup {+-}} decays.

  1. Measurement of CP violating phase $?_s$ and control of penguin pollution at LHCb

    E-Print Network [OSTI]

    Walaa Kanso

    2014-11-21

    The study of CP violation in \\Bs\\, oscillations is a key measurement at the LHCb experiment. In this document, we discuss the latest LHCb results on the CP-violating phase, called $\\phi_s$, using \\BsJKK\\, and \\BsJpipi\\, channels. To conclude on the presence of New Physics in $\\phi_s$, the estimation of the sub-dominant contributions from the Standard Model becomes crucial now. We outline a method to estimate the contribution of penguin diagrams in $\\phi_s$. Branching fractions and upper limits of \\BdKshh\\,($ h^{(')}=K,\\pi)$\\, modes are presented.

  2. Retarded Interaction of Electromagnetic field and Symmetry Violation of Time Reversal in Non-linear Optics

    E-Print Network [OSTI]

    Mei Xiaochun

    2008-04-19

    Based on Document (1), by considering the retarded interaction of radiation fields, the third order transition probabilities of stimulated radiations and absorptions of light are calculated. The revised formulas of nonlinear polarizations are provided. The results show that that the general processes of non-linear optics violate time reversal symmetry. The phenomena of non-linear optics violating time reversal symmetry just as sum frequency, double frequency, different frequencies, double stable states, self-focusing and self-defocusing, echo phenomena, as well as optical self-transparence and self absorptions and so on are analyzed.

  3. Exceptional Points in a Microwave Billiard with Time-Reversal Invariance Violation

    E-Print Network [OSTI]

    B. Dietz; H. L. Harney; O. N. Kirillov; M. Miski-Oglu; A. Richter; F. Schaefer

    2010-11-30

    We report on the experimental study of an exceptional point (EP) in a dissipative microwave billiard with induced time-reversal invariance (T) violation. The associated two-state Hamiltonian is non-Hermitian and non-symmetric. It is determined experimentally on a narrow grid in a parameter plane around the EP. At the EP the size of T violation is given by the relative phase of the eigenvector components. The eigenvectors are adiabatically transported around the EP, whereupon they gather geometric phases and in addition geometric amplitudes different from unity.

  4. Falsifying High-Scale Baryogenesis with Neutrinoless Double Beta Decay and Lepton Flavor Violation

    E-Print Network [OSTI]

    Deppisch, Frank F; Hirsch, Martin; Huang, Wei-Chih; Päs, Heinrich

    2015-01-01

    Interactions that manifest themselves as lepton number violating processes at low energies in combination with sphaleron transitions typically erase any pre-existing baryon asymmetry of the universe. In this letter, we discuss the constraints obtained from an observation of neutrinoless double beta decay in this context. If a new physics mechanism of neutrinoless double beta decay is observed, typical scenarios of high-scale baryogenesis will be excluded unless the baryon asymmetry is stabilized via some new mechanism. We also sketch how this conclusion can be extended beyond the first lepton generation by incorporating lepton flavor violating processes.

  5. Falsifying High-Scale Baryogenesis with Neutrinoless Double Beta Decay and Lepton Flavor Violation

    E-Print Network [OSTI]

    Frank F. Deppisch; Julia Harz; Martin Hirsch; Wei-Chih Huang; Heinrich Päs

    2015-09-11

    Interactions that manifest themselves as lepton number violating processes at low energies in combination with sphaleron transitions typically erase any preexisting baryon asymmetry of the Universe. In this article, we discuss the constraints obtained from an observation of neutrinoless double beta decay in this context. If a new physics mechanism of neutrinoless double beta decay other than the standard light neutrino exchange is observed, typical scenarios of high-scale baryogenesis will be excluded unless the baryon asymmetry is stabilized via some new mechanism. We also sketch how this conclusion can be extended beyond the first lepton generation by incorporating lepton flavor violating processes.

  6. Falsifying High-Scale Baryogenesis with Neutrinoless Double Beta Decay and Lepton Flavor Violation

    E-Print Network [OSTI]

    Frank F. Deppisch; Julia Harz; Martin Hirsch; Wei-Chih Huang; Heinrich Päs

    2015-03-16

    Interactions that manifest themselves as lepton number violating processes at low energies in combination with sphaleron transitions typically erase any pre-existing baryon asymmetry of the universe. In this letter, we discuss the constraints obtained from an observation of neutrinoless double beta decay in this context. If a new physics mechanism of neutrinoless double beta decay is observed, typical scenarios of high-scale baryogenesis will be excluded unless the baryon asymmetry is stabilized via some new mechanism. We also sketch how this conclusion can be extended beyond the first lepton generation by incorporating lepton flavor violating processes.

  7. Schrödinger-Pauli Equation for the Standard Model Extension CPT-Violating Dirac Equation

    E-Print Network [OSTI]

    Thomas D. Gutierrez

    2015-04-06

    It is instructive to investigate the non-relativistic limit of the simplest Standard Model Extension (SME) CPT-violating Dirac-like equation but with minimal coupling to the electromagnetic fields. In this limit, it becomes an intuitive Schr\\"odinger-Pauli-like equation. This is comparable to the free particle treatment as explored by Kostelecky and Lane, but this exercise only considers the $a$ and $b$ CPT-violating terms and $\\vec{p}/m$ terms to first order. Several toy systems are discussed.

  8. Majorana phases, CP violation, sterile neutrinos and neutrinoless double-beta decay

    SciTech Connect (OSTI)

    Babi?, Andrej; Šimkovic, Fedor

    2013-12-30

    CP violation plays a crucial role in the generation of the baryon asymmetry in the Universe. Within this context we investigate the possibility of CP violation in the lepton sector caused by Majorana neutrino mixing. Focus is put on the model including 1 sterile neutrino. Both cases of normal and inverted neutrino mass spectrum are considered. We address the question whether the Majorana phases can be measured in the neutrinoless double-beta decay experiments with sensitivity to the effective Majorana neutrino mass of the order of 10{sup ?2} eV.

  9. Search for CP Violating neutral Higgs bosons in the MSSM at LEP

    E-Print Network [OSTI]

    Philip Bechtle

    2006-02-24

    The LEP collaborations ALEPH, DELPHI, L3 and OPAL have searched for the neutral Higgs bosons which are predicted within the framework of the Minimal Supersymmetric Standard Model (MSSM). The data of the four collaborations are statistically combined and show no signicant excess of events which would indicate the production of Higgs bosons. The search results are thus used to set upper bounds on the cross sections of various Higgs-like event topologies and limits on MSSM benchmark models, including CP-conserving and CP-violating scenarios. Here, the limits on the model parameters of the CP-violating benchmark scenario CPX and derivates of this scenario are shown.

  10. Group-theoretic restrictions on generation of CP-violation in multi-Higgs-doublet models

    E-Print Network [OSTI]

    Branco, G C

    2015-01-01

    It has been known since decades that imposing a symmetry group G on the scalar sector of multi-Higgs-doublet models has consequences for CP-violation. In all examples of two- and three-Higgs-doublet models equipped with symmetries, one observes the following intriguing property: if G prevents explicit CP-violation (CPV), at least in the neutral Higgs sector, then it also prevents spontaneous CPV, and if G allows explicit CPV, then it allows for spontaneous CPV. One is led to conjecture that this is a general phenomenon. In this paper, we prove this conjecture for any rephasing symmetry group G and any number of doublets.

  11. Search for CP Violating Neutral Higgs Bosons in the MSSM at LEP

    SciTech Connect (OSTI)

    Bechtle, Philip; /SLAC

    2006-03-13

    The LEP collaborations ALEPH, DELPHI, L3 and OPAL have searched for the neutral Higgs bosons which are predicted within the framework of the Minimal Supersymmetric Standard Model (MSSM). The data of the four collaborations are statistically combined and show no significant excess of events which would indicate the production of Higgs bosons. The search results are thus used to set upper bounds on the cross sections of various Higgs-like event topologies and limits on MSSM benchmark models, including CP-conserving and CP-violating scenarios. Here, the limits on the model parameters of the CP-violating benchmark scenario CPX and derivates of this scenario are shown.

  12. CP violation from spin-1 resonances in a left-right dynamical Higgs context

    E-Print Network [OSTI]

    Yepes, Juan; Shu, Jing

    2015-01-01

    New physics field content in the nature, more specifically, from spin-1 resonances sourced by the extension of the SM local gauge symmetry to the larger local group $SU(2)_L\\otimes SU(2)_R\\otimes U(1)_{B-L}$, may induce CP-violation signalling NP effects from higher energy regimes. In this work we completely list and study all the CP-violating operators up to the $p^4$-order in the Lagrangian expansion, for a non-linear left-right electroweak chiral context and coupled to a light dynamical Higgs.

  13. Search for CP Violation in \\Xi and \\Lambda Hyperon Decays: Status of the HyperC P Experiment

    E-Print Network [OSTI]

    Fermilab Experiment E871

    1 Search for CP Violation in \\Xi and \\Lambda Hyperon Decays: Status of the HyperC P Experiment Department, University of Virginia, Charlottesville, VA 22901, USA HyperCP (E871), a Fermilab experiment searching for CP violation in \\Xi and \\Lambda hyperon decays, finished its first data taking run at the end

  14. Energy Efficiency Indicators Methodology Booklet

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    2000 NRCAN, 2006. Energy Efficiency Trends in Canada 1990 toResources Canada’s Office of Energy Efficiency, Ottawa.NRCAN, 2009. Energy Efficiency Trends in Canada 1990 to

  15. PROGRESS IN ENERGY EFFICIENT BUILDINGS

    E-Print Network [OSTI]

    Wall, L.W.

    2009-01-01

    Seven recent energy-efficient U.S. office buildings areSeven recent energy-efficient U.S. office buildings areLaboratory (1982), "Energy Efficient Buildings Program FY

  16. Sandia Energy - Enabling Energy Efficiency

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

    Enabling Energy Efficiency Home Energy Research EFRCs Solid-State Lighting Science EFRC Enabling Energy Efficiency Enabling Energy EfficiencyTara Camacho-Lopez2015-03-26T16:33:50+0...

  17. ACEEE Energy Efficiency Finance Forum

    Broader source: Energy.gov [DOE]

    The American Council for an Energy-Efficient Economy (ACEEE) is hosting an Energy Efficiency Finance Forum is dedicated to catalyzing investment in and scaling the market for energy efficiency.

  18. Efficiency and maximal CP-asymmetry of scalar triplet leptogenesis

    E-Print Network [OSTI]

    Thomas Hambye; Martti Raidal; Alessandro Strumia

    2006-05-16

    We study thermal leptogenesis induced by decays of a scalar SU(2)_L triplet. Despite the presence of gauge interactions, unexpected features of the Boltzmann equations make the efficiency close to maximal in most of the parameter space. We derive the maximal CP asymmetry in triplet decays, assuming that it is generated by heavier sources of neutrino masses: in this case successful leptogenesis needs a triplet heavier than 2.8 10^{10} GeV and does not further restrict its couplings, allowing detectable mu --> e gamma, tau --> mu gamma rates in the context of supersymmetric models. Triplet masses down to the TeV scale are viable in presence of extra sources of CP-violation.

  19. Energy Efficiency: Challenges and Progress

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

    Energy Efficiency: Challenges and Progress State Energy Advisory Board Meeting June 7, 2011 2 | Energy Efficiency and Renewable Energy eere.energy.gov EE Priorities Spend ARRA...

  20. Behavior Based Energy Efficiency (BBEE)

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

    Behavior Based Energy Efficiency Program Profiles 2011 Bonneville Power Administration Residential Behavior Based Energy Efficiency Program Profiles 2011 Prepared by Skip Schick...

  1. Energy Efficiency Program Best Practices

    SciTech Connect (OSTI)

    none,

    2010-11-30

    Presents best practices for operating successful portfolio-level efficiency programs, including assessing efficiency potential, cost-effectiveness screening, and developing a portfolio of approaches.

  2. Energy Efficiency Project Development

    SciTech Connect (OSTI)

    IUEP

    2004-03-01

    The International Utility Efficiency Partnerships, Inc. (IUEP) has been a leader among the industry groups that have supported voluntary initiatives to promote international energy efficiency projects and address global climate change. The IUEP maintains its leadership by both supporting international greenhouse gas (GHG) reduction projects under the auspices of the U.S. Department of Energy (DOE) and by partnering with U.S. and international organizations to develop and implement strategies and specific energy efficiency projects. The goals of the IUEP program are to (1) provide a way for U.S. industry to maintain a leadership role in international energy efficiency infrastructure projects; (2) identify international energy project development opportunities to continue its leadership in supporting voluntary market-based mechanisms to reduce GHG emissions; and (3) demonstrate private sector commitment to voluntary approaches to global climate issues. The IUEP is dedicated to identifying, promoting, managing, and assisting in the registration of international energy efficiency projects that result in demonstrated voluntary reductions of GHG emissions. This Final Technical Report summarizes the IUEP's work in identifying, promoting, managing, and assisting in development of these projects and IUEP's effort in creating international cooperative partnerships to support project development activities that develop and deploy technologies that (1) increase efficiency in the production, delivery and use of energy; (2) increase the use of cleaner, low-carbon fuels in processing products; and (3) capture/sequester carbon gases from energy systems. Through international cooperative efforts, the IUEP intends to strengthen partnerships for energy technology innovation and demonstration projects capable of providing cleaner energy in a cost-effective manner. As detailed in this report, the IUEP met program objectives and goals during the reporting period January 1, 2001 through December 31, 2002. At the request of the DOE, we have also included in this report additional activities during the reporting period January, 1999 through January, 2001. This additional information had been reported earlier in the Final Technical Reports that summarized activities undertaken in those earlier periods.

  3. Oncor Energy Efficiency Programs 

    E-Print Network [OSTI]

    Betts, C.

    2014-01-01

    -11-04 CATEE 2014: Clean Air Through Efficiency Conference, Dallas, Texas Nov. 18-20 2012 – 2015 Energy Efficiency Goals Year Demand Goal MW Energy Goal MWh Basis 2012 53.1 93,031 25% of Average Load Growth 2013 54.6 95,659 30% of Average Load Growth 2014... 68.1 119,311 30% of Average Load Growth 2015* 87.0 152,424 30% of Average Load Growth • The Demand Goal is based on a five year rolling average of actual demand growth, provided by Oncor Revenue Forecasting • Goal calculations take credit for 7...

  4. Energy Efficiency Title

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities Energy EfficiencyModularEfficiency: Beyond the

  5. Energy Efficiency Title

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities Energy EfficiencyModularEfficiency: Beyond theIndustrial

  6. Energy Efficiency of Future Networks Energy Efficient Transmission in

    E-Print Network [OSTI]

    Ulukus, Sennur

    Energy Efficiency of Future Networks Part 1: Energy Efficient Transmission in Classical Wireless #12;Goals Energy Efficiency: What it meant last decade; what it means today From a communication network design perspective what should we care about for energy efficient design of cellular

  7. Search for Direct CP Violation in Decays of Hyperons Y. C. Chen a , R. A. Burnstein b , A. Chakravorty b , A. Chan a ,

    E-Print Network [OSTI]

    Fermilab Experiment E871

    Search for Direct CP Violation in Decays of Hyperons Y. C. Chen a , R. A. Burnstein b , A.S.A. The E871 (HyperCP) experiment at FNAL is searching for direct CP violation in decays of \\Xi \\Gamma (\\Xi more data which will improve the sensitivity to Ã? 1 \\Theta 10 \\Gamma4 . 1 Introduction CP violation has

  8. Branching fractions and CP-violating asymmetries in radiative B decays to eta K gamma

    E-Print Network [OSTI]

    Zhao, M.

    We present measurements of the CP-violation parameters S and C for the radiative decay B0-->etaKS0gamma; for B-->etaKgamma we also measure the branching fractions and for B+-->etaK+gamma the time-integrated charge asymmetry ...

  9. Search for Lepton Flavor Violating Decays tau--->l-Ks0 with the BABAR Experiment

    E-Print Network [OSTI]

    Fisher, Peter H.

    A search for the lepton flavor violating decays tau--->l-KS0 (l=e or mu) has been performed using a data sample corresponding to an integrated luminosity of 469??fb[superscript -1], collected with the BABAR detector at the ...

  10. " Senate: Chair on Violations & Behavior, p. 2 " SEAS Dean's Search, p.2

    E-Print Network [OSTI]

    George, Edward I.

    to Labor Day Retreat, p. 2 " Of Record: Extraordinary Report of JlO pp. 3-5 " Council Synopsis. PATHS Fair (two to be elected) Jane Combrinck-Graham, risk control sp'list Michael Brennan, assoc. dir Inquiry Officer, Jane Combrinck-Graham of Risk Management found aseries of violations ofthe Open

  11. alpha(s) Determinations from Jets and Scaling Violations at HERA

    E-Print Network [OSTI]

    Thomas Kluge

    2006-10-13

    A review is given on recent alpha(s) determinations from the H1 and ZEUS Collaborations. These are based on measurements of jet cross sections, event shape variables, as well as on the observed scaling violation of the structure function F_2. A HERA average on alpha(s)(m_Z) is presented, in comparison with world mean values.

  12. nucl-ex/960200214Feb1996 A High Power Liquid Hydrogen Target for Parity Violation

    E-Print Network [OSTI]

    Maryland at College Park, University of

    nucl-ex/960200214Feb1996 A High Power Liquid Hydrogen Target for Parity Violation Experiments E to absorb 500 watts or more with minimal change in target density. A 40 cm long liquid hydrogen target. For this experiment, a 40 cm long liquid hydrogen target was developed which can absorb 500 watts of beam power

  13. 80 IAEI NEWS March.April 2008 www.iaei.org COMMON PV CODE VIOLATIONS

    E-Print Network [OSTI]

    Johnson, Eric E.

    80 IAEI NEWS March.April 2008 www.iaei.org COMMON PV CODE VIOLATIONS by John Wiles A s we move into 2008, the PV industry continues to grow by leaps and bounds. New module and inverter manufacturers are entering the industry, and the number of individuals and organizations install- ing PV systems is growing

  14. Time-reversal invariance violation measurement using polarized neutron scattering from polarized xenon

    E-Print Network [OSTI]

    Pinghan Chu

    2014-03-06

    We proposed to use polarized neutrons scattering from a hyperpolarized 131Xe gaseous target in order to measure time-reversal violation effect in baryon processes with nucleons. This article provides a brief introduction, historical review, and possible methods to construct a hyperpolarized 131Xe gaseous target.

  15. Constrained {gamma}Z correction to parity-violating electron scattering

    SciTech Connect (OSTI)

    Hall, Nathan Luk; Blunden, Peter Gwithian; Melnitchouk, Wally; Thomas, Anthony W.; Young, Ross D.

    2013-11-01

    We update the calculation of {gamma}Z interference corrections to the weak charge of the proton. We show how constraints from parton distributions, together with new data on parity-violating electron scattering in the resonance region, significantly reduce the uncertainties on the corrections compared to previous estimates.

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

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

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

    2012-11-01

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

  17. A scaler-based data acquisition system for measuring parity violation asymmetry in deep inelastic scattering

    E-Print Network [OSTI]

    Pan, Kai, S.M. Massachusetts Institute of Technology

    2013-01-01

    An experiment that measured the parity violating (PV) asymmetry Ad in e- 2H deep inelastic scattering (DIS) at Q2 ~ 1.10 and 1.90 (GeV/c) 2 and XB ~ 0.3 was completed in experimental Hall A at the Thomas Jefferson National ...

  18. Sensitive polarimetric search for relativity violations in gamma-ray bursts

    E-Print Network [OSTI]

    Alan Kostelecky; Matthew Mewes

    2006-07-07

    We show that the recent measurements of linear polarization in gamma rays from GRB 930131 and GRB 960924 constrain certain types of relativity violations in photons to less than parts in 10^{37}, representing an improvement in sensitivity by a factor of 100,000.

  19. Testing gravitational parity violation with coincident gravitational waves and short gamma-ray bursts

    E-Print Network [OSTI]

    Nicolas Yunes; Richard O'Shaughnessy; Benjamin J. Owen; Stephon Alexander

    2010-05-18

    Gravitational parity violation is a possibility motivated by particle physics, string theory and loop quantum gravity. One effect of it is amplitude birefringence of gravitational waves, whereby left and right circularly-polarized waves propagate at the same speed but with different amplitude evolution. Here we propose a test of this effect through coincident observations of gravitational waves and short gamma-ray bursts from binary mergers involving neutron stars. Such gravitational waves are highly left or right circularly-polarized due to the geometry of the merger. Using localization information from the gamma-ray burst, ground-based gravitational wave detectors can measure the distance to the source with reasonable accuracy. An electromagnetic determination of the redshift from an afterglow or host galaxy yields an independent measure of this distance. Gravitational parity violation would manifest itself as a discrepancy between these two distance measurements. We exemplify such a test by considering one specific effective theory that leads to such gravitational parity-violation, Chern-Simons gravity. We show that the advanced LIGO-Virgo network and all-sky gamma-ray telescopes can be sensitive to the propagating sector of Chern-Simons gravitational parity violation to a level roughly two orders of magnitude better than current stationary constraints from the LAGEOS satellites.

  20. University of Alberta SafeType: Detecting Type Violations for Type-Based Alias

    E-Print Network [OSTI]

    Amaral, José Nelson

    University of Alberta SafeType: Detecting Type Violations for Type-Based Alias Analysis of C Edmonton, Alberta Permission is hereby granted to the University of Alberta Libraries to reproduce single, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other

  1. PR-Miner: Automatically Extracting Implicit Programming Rules and Detecting Violations in Large Software Code

    E-Print Network [OSTI]

    Zhou, Yuanyuan

    PR-Miner: Automatically Extracting Implicit Programming Rules and Detecting Violations in Large a general method called PR-Miner that uses a data mining technique called frequent itemset mining. Benefiting from frequent itemset mining, PR-Miner can extract pro- gramming rules in general forms (without

  2. arXiv:hep-ph/0212289v229Mar2003 Electromagnetic cavities and Lorentz invariance violation

    E-Print Network [OSTI]

    Peters, Achim

    of this fundamental theory even further. One reason to con- tinue testing SR is because it is one of the pillars such as string theory and loop gravity predict Lorentz violation at some level [10, 11, 12, 13]. Electromagnetic as remnants of Planck-scale physics of an un- derlying fundamental theory, such as string theory

  3. GUIDELINES FOR ACADEMIC EVALUATORS REGARDING VIOLATIONS OF ACADEMIC REGULATIONS BY STUDENTS

    E-Print Network [OSTI]

    Brownstone, Rob

    to the Senate Discipline Committee, and in limited circumstances, to Academic Integrity Officers, as defined to have their case initially addressed by Academic Integrity Officers, will have the option to have personal, unilateral action in relation to alleged violations of any academic regulations. Any attempt

  4. Measurement of CP Violation in B[superscript 0] ? J/?K[0 over S] Decays

    E-Print Network [OSTI]

    Aaij, R.

    Measurements are presented of the CP violation observables S and C in the decays of B[superscript 0] and [bar over B][superscript 0] mesons to the J/?K[0 over S] final state. The data sample corresponds to an integrated ...

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

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

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

    2012-11-26

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

  6. CP-violation in $b \\to s$ Penguin Decays at BaBar

    E-Print Network [OSTI]

    BaBar Collaboration; Nitesh Soni

    2007-10-16

    We present the new and updated $BABAR$ measurements of CP-violation studies for many $b\\to s $ penguin decay modes. We report the first observation of mixing-induced CP-violation in $B^0 \\to \\eta ^{'} K^0$ with a significance (including systematic uncertainties) of 5.5$\\sigma$. We also present the first observation of the decay $B^0 \\to \\rho ^0 K^0$. Using the time-dependent Dalitz plot analysis of $B^0\\to K^+K^- K^0$ decay, the CP-parameters $\\mathcal A_{CP}$ and $\\beta_{eff}$ are measured with $4.8\\sigma$ significance, and we reject the solution near $\\pi /2 - \\beta_{eff}$ at $4.5\\sigma$. We also present the updated measurements of CP-violating parameters for $B^0 \\to K_S^0 \\pi ^0$, $K_S^0K_S^0K_S^0$ and $\\pi ^0 \\pi ^0 K_S^0$ decays. An updated measurements of the CP-violating charge asymmetries for $B^{\\pm}\\to \\eta ^{'} K^{\\pm}$, $\\eta K^{\\pm}$, $\\omega K^{\\pm}$ decays are also presented. The measurements are based on the data sample recorded at the $\\Upsilon (4S)$ resonance with $BABAR$ detector at the PEP-II $B$-meson Factory at SLAC.

  7. Mixing and mixing-related CP violation in the B system

    E-Print Network [OSTI]

    Amhis, Yasmine Sara; Jung, Martin

    2015-01-01

    We present the summary of the working group on $B$ mixing and the related CP violation at the CKM 2014 workshop. The contributions reflect the experimental and theoretical progress in the field over the last two years since the last CKM workshop.

  8. Measurement of CP-Violating Asymmetries in the Flavor-Changing Neutral Current

    E-Print Network [OSTI]

    Aihara, Hiroaki

    Measurement of CP-Violating Asymmetries in the Flavor-Changing Neutral Current Decays of the B phases and subsequently cause deviations from the Standard Model expectation for CP asymmetries. Due present measurements of CP asymmetries in the B0 decays with K0 SK+ K- final state including B0 K0 S, non

  9. CP Violation with Bs -> J/Psi phi at the Tevatron

    E-Print Network [OSTI]

    Brad Abbott

    2011-07-01

    Recent results using B_s -> J/Psi phi decays for measuring the CP violating phase, phi_s, and the decay width difference for the two mass eigenstates, Delta Gamma_s, are presented from the CDF and D0 experiments at the Fermilab Tevatron collider.

  10. Energy Efficiency Revitalization 

    E-Print Network [OSTI]

    Kelly, R. L.

    1987-01-01

    To set the tone for my remarks I will start by saying- today, energy efficiency is a tough sell. In General Motors, our plant engineering people, faced with headcount deductions, budget cuts, and capital spending constraints are up to their “you...

  11. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy DOE Hydrogen & Fuel Cell Overview Dr. Sunita Satyapal Program Manager U.S. Department of Energy Fuel Cell Technologies Program DOE/CESA/TTC Hydrogen and Fuel Cells Webinar December 14, 2010 #12;2 Examples of DOE-funded Partners and Locations ­ Fuel Cell Technologies

  12. Energy Efficiency & Renewable Energy

    E-Print Network [OSTI]

    Energy Efficiency & Renewable Energy DOE­DOT CNG­H2 Workshop Summary and Highlights Antonio Ruiz DOE Vehicular Tank Workshop April 29, 2010 ­ Sandia National Laboratories, CA #12;2 CNG­H2 Fuels CNG and hydrogen- fueled vehicles in public transit fleets and the consumer sector. Objectives

  13. Energy Efficiency Indicators Methodology Booklet

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    urban household refrigerators. The analysis then further decomposes the energy consumption by efficiency

  14. California Industrial Energy Efficiency Potential

    E-Print Network [OSTI]

    Coito, Fred; Worrell, Ernst; Price, Lynn; Masanet, Eric; Rafael Friedmann; Rufo, Mike

    2005-01-01

    Heat Recovery/Economizer Blowdown Steam Heat Recovery Upgrade Burner Efficiency Water Treatment Condensate

  15. Energy Efficiency Indicators Methodology Booklet

    E-Print Network [OSTI]

    Sathaye, Jayant

    2010-01-01

    nuclear and geothermal electricity, heat is the primary energy form considered and the conventional efficiencies

  16. Northeast Energy Efficiency Partnerships: Advanced Lighting Controls...

    Energy Savers [EERE]

    Northeast Energy Efficiency Partnerships: Advanced Lighting Controls Northeast Energy Efficiency Partnerships: Advanced Lighting Controls Credit: Northeast Energy Efficiency...

  17. Residential Energy Efficiency Messaging | Department of Energy

    Office of Environmental Management (EM)

    Residential Energy Efficiency Messaging Residential Energy Efficiency Messaging Better Buildings Residential Network Peer Exchange Call Series: Residential Energy Efficiency...

  18. Energy Information Administration - Energy Efficiency, energy...

    U.S. Energy Information Administration (EIA) Indexed Site

    Efficiency Energy Efficiency energy consumption savings households, buildings, industry & vehicles The Energy Efficiency Page reflects EIA's information on energy efficiency and...

  19. Coordination of Energy Efficiency and Demand Response

    E-Print Network [OSTI]

    Goldman, Charles

    2010-01-01

    National Action Plan for Energy Efficiency Energy efficiency programson energy efficiency program types, see National Action PlanNational Action Plan for Energy Efficiency Most demand response programs

  20. Building on Efficiency

    Office of Energy Efficiency and Renewable Energy (EERE)

    Two administration-led, industry-driven efforts marked milestones today. The first will put Americans to work on more than $2 billion in energy upgrades for federal buildings. The second will offer 30 million households and businesses more control over their energy bills. And together, these efforts will support an economy that’s built to last, one that makes use of every source of American energy – more efficiently.

  1. Energy Efficient Digital Networks

    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 Data Center Home Page on Delicious Rank EERE: AlternativeCommunication3-EDepartment of EnergyDepartmentEfficient Buildings Hub

  2. Energy Efficiency Conference Archives

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunities Energy EfficiencyModular

  3. Measurement of the Parity-Violating Asymmetries in Electron-Deuteron Scattering in the Nucleon Resonance Region

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

    Wang, Diancheng; Pan, Kai; Subedi, Ramesh R.; Deng, Xiaoyan

    2013-08-22

    We report on parity-violating asymmetries in the nucleon resonance region measured using 5 - 6 GeV longitudinally polarized electrons scattering off an unpolarized deuterium target. These results are the first parity-violating asymmetry data in the resonance region beyond the ?(1232), and provide a verification of quark-hadron duality in the nucleon electroweak ? Z interference structure functions at the (10-15)% level. The results are of particular interest to models relevant for calculating the ? Z box-diagram corrections to elastic parity-violating electron scattering measurements.

  4. Measurement of the Parity-Violating Asymmetry in Electron-Deuteron Scattering in the Nucleon Resonance Region

    E-Print Network [OSTI]

    D. Wang; K. Pan; R. Subedi; X. Deng; Z. Ahmed; K. Allada; K. A. Aniol; D. S. Armstrong; J. Arrington; V. Bellini; R. Beminiwattha; J. Benesch; F. Benmokhtar; A. Camsonne; M. Canan; G. D. Cates; J. -P. Chen; E. Chudakov; E. Cisbani; M. M. Dalton; C. W. de Jager; R. De Leo; W. Deconinck; A. Deur; C. Dutta; L. El Fassi; D. Flay; G. B. Franklin; M. Friend; S. Frullani; F. Garibaldi; A. Giusa; A. Glamazdin; S. Golge; K. Grimm; K. Hafidi; O. Hansen; D. W. Higinbotham; R. Holmes; T. Holmstrom; R. J. Holt; J. Huang; C. E. Hyde; C. M. Jen; D. Jones; H. Kang; P. King; S. Kowalski; K. S. Kumar; J. H. Lee; J. J. LeRose; N. Liyanage; E. Long; D. McNulty; D. J. Margaziotis; F. Meddi; D. G. Meekins; L. Mercado; Z. -E. Meziani; R. Michaels; M. Mihovilovic; N. Muangma; K. E. Myers; S. Nanda; A. Narayan; V. Nelyubin; Nuruzzaman; Y. Oh; D. Parno; K. D. Paschke; S. K. Phillips; X. Qian; Y. Qiang; B. Quinn; A. Rakhman; P. E. Reimer; K. Rider; S. Riordan; J. Roche; J. Rubin; G. Russo; K. Saenboonruang; A. Saha; B. Sawatzky; A. Shahinyan; R. Silwal; S. Sirca; P. A. Souder; R. Suleiman; V. Sulkosky; C. M. Sutera; W. A. Tobias; G. M. Urciuoli; B. Waidyawansa; B. Wojtsekhowski; L. Ye; B. Zhao; X. Zheng

    2013-08-12

    We report on parity-violating asymmetries in the nucleon resonance region measured using $5 - 6$ GeV longitudinally polarized electrons scattering off an unpolarized deuterium target. These results are the first parity-violating asymmetry data in the resonance region beyond the $\\Delta(1232)$, and provide a verification of quark-hadron duality in the nucleon electroweak $\\gamma Z$ interference structure functions at the (10-15)% level. The results are of particular interest to models relevant for calculating the $\\gamma Z$ box-diagram corrections to elastic parity-violating electron scattering measurements.

  5. Measurement of the Parity-Violating Asymmetries in Electron-Deuteron Scattering in the Nucleon Resonance Region

    SciTech Connect (OSTI)

    Wang, Diancheng; Pan, Kai; Subedi, Ramesh R.; Deng, Xiaoyan

    2013-08-01

    We report on parity-violating asymmetries in the nucleon resonance region measured using 5 - 6 GeV longitudinally polarized electrons scattering off an unpolarized deuterium target. These results are the first parity-violating asymmetry data in the resonance region beyond the ?(1232), and provide a verification of quark-hadron duality in the nucleon electroweak ? Z interference structure functions at the (10-15)% level. The results are of particular interest to models relevant for calculating the ? Z box-diagram corrections to elastic parity-violating electron scattering measurements.

  6. Search for Lorentz invariance violation through tests of the gravitational inverse square law at short-ranges

    E-Print Network [OSTI]

    Shao, Cheng-Gang; Tan, Wen-Hai; Yang, Shan-Qing; Luo, Jun; Tobar, Michael Edmund

    2015-01-01

    A search for sidereal variations in the non-Newtonian force between two tungsten plates separated at millimeter ranges sets experimental limits on Lorentz invariance violation involving quadratic couplings of Riemann curvature. We show that the Lorentz invariance violation force between two finite flat plates is dominated by the edge effects, which includes a suppression effect leading to lower limits than previous rough estimates. From this search, we determine the current best constraints of the Lorentz invariance violating coefficients at a level of $10^{-8}$ m$^{2}$.

  7. Energy Efficiency and Pollution Prevention: Industrial Efficiency Strategies 

    E-Print Network [OSTI]

    Pye, M.; Elliott, R. N.

    1998-01-01

    For many years, efforts to promote energy efficiency and pollution prevention (P2) traveled on separate, parallel paths. Most energy efficiency proponents considered only energy savings aspects of their projects and most P2 proponents did...

  8. High Efficiency m-plane LEDs on Low Defect Density Bulk GaN Substrates

    SciTech Connect (OSTI)

    David, Aurelien

    2012-10-15

    Solid-state lighting is a key technology for reduction of energy consumption in the US and worldwide. In principle, by replacing standard incandescent bulbs and other light sources with sources based on light-emitting diodes (LEDs), ultimate energy efficiency can be achieved. The efficiency of LEDs has improved tremendously over the past two decades, however further progress is required for solid- state lighting to reach its full potential. The ability of an LED at converting electricity to light is quantified by its internal quantum efficiency (IQE). The material of choice for visible LEDs is Gallium Nitride (GaN), which is at the basis of blue-emitting LEDs. A key factor limiting the performance of GaN LEDs is the so-called efficiency droop, whereby the IQE of the LED decreases significantly at high current density. Despite decades of research, efficiency droop remains a major issue. Since high-current operation is necessary for practical lighting applications, reducing droop is a major challenge for the scientific community and the LED industry. Our approach to solving the droop issue is the use of newly available low-defect-density bulk GaN non-polar substrates. In contrast to the standard foreign substrates (sapphire, silicon carbide, silicon) used in the industry, we have employed native bulk GaN substrates with very low defect density, thus ensuring exquisite material quality and high IQE. Whereas all commercial LEDs are grown along the c-plane crystal direction of GaN, we have used m-plane non-polar substrates; these drastically modify the physical properties of the LED and enable a reduction of droop. With this approach, we have demonstrated very high IQE performance and low droop. Our results focused on violet and blue LEDs. For these, we have demonstrated very high peak IQEs and current droops of 6% and 10% respectively (up to a high current density of 200A.cm-2). All these results were obtained under electrical operation. These high IQE and low droop values are in line with the program’s milestones. They demonstrate that bulk non-polar GaN substrates represent a disruptive technology for LED performance. Application of this technology to real-world products is feasible, provided that the cost of GaN substrates is compatible with the market’s requirement.

  9. Intelligent Efficiency: the Next Generation of Energy Efficiency 

    E-Print Network [OSTI]

    Trombley,D.; Molina, M.; Elliot, R. N.

    2012-01-01

    , there will be a structural change in how we use energy. This paper explores the next generation of energy efficiency: what we call intelligent efficiency. Building on recent work in this area, this paper will define intelligent efficiency and provide specific case...

  10. Energy efficient data centers

    SciTech Connect (OSTI)

    Tschudi, William; Xu, Tengfang; Sartor, Dale; Koomey, Jon; Nordman, Bruce; Sezgen, Osman

    2004-03-30

    Data Center facilities, prevalent in many industries and institutions are essential to California's economy. Energy intensive data centers are crucial to California's industries, and many other institutions (such as universities) in the state, and they play an important role in the constantly evolving communications industry. To better understand the impact of the energy requirements and energy efficiency improvement potential in these facilities, the California Energy Commission's PIER Industrial Program initiated this project with two primary focus areas: First, to characterize current data center electricity use; and secondly, to develop a research ''roadmap'' defining and prioritizing possible future public interest research and deployment efforts that would improve energy efficiency. Although there are many opinions concerning the energy intensity of data centers and the aggregate effect on California's electrical power systems, there is very little publicly available information. Through this project, actual energy consumption at its end use was measured in a number of data centers. This benchmark data was documented in case study reports, along with site-specific energy efficiency recommendations. Additionally, other data center energy benchmarks were obtained through synergistic projects, prior PG&E studies, and industry contacts. In total, energy benchmarks for sixteen data centers were obtained. For this project, a broad definition of ''data center'' was adopted which included internet hosting, corporate, institutional, governmental, educational and other miscellaneous data centers. Typically these facilities require specialized infrastructure to provide high quality power and cooling for IT equipment. All of these data center types were considered in the development of an estimate of the total power consumption in California. Finally, a research ''roadmap'' was developed through extensive participation with data center professionals, examination of case study findings, and participation in data center industry meetings and workshops. Industry partners enthusiastically provided valuable insight into current practice, and helped to identify areas where additional public interest research could lead to significant efficiency improvement. This helped to define and prioritize the research agenda. The interaction involved industry representatives with expertise in all aspects of data center facilities, including specialized facility infrastructure systems and computing equipment. In addition to the input obtained through industry workshops, LBNL's participation in a three-day, comprehensive design ''charrette'' hosted by the Rocky Mountain Institute (RMI) yielded a number of innovative ideas for future research.

  11. Iron efficiency in sorghum 

    E-Print Network [OSTI]

    Esty, James Craig

    1979-01-01

    . DeKoch (28) indicated that the total amount of Fe in the roots of plants bears little relation to chlorosis, as roots of chlorotic plants may contain a higher percentage of Fe than roots of healthy plants. Fe was internally inactivated in soybeans...) developed a technique to de- termine Fe efficiency in plants, they stated that some control of pH was needed in the growth medium and they + accomplished this by using NO 3 nitrogen and NH 4 nitrogen in nutrient solutions. A decrease in pH of the growth...

  12. Efficient Bundle Sorting

    E-Print Network [OSTI]

    Matias, Yossi; Segal, Eran; Vitter, Jeffrey Scott

    2006-01-01

    block. The algorithm terminates when all blocks are done with. The following is a pseudocode of the algorithm. See also Figure 1. One-pass sorting algorithm. procedure one-pass-sort (sequence,k,M,B) for i =0 to floorleftM/Bfloorright EFFICIENT BUNDLE... for one-pass sorting. We give a pseudocode of the algorithm below, followed by an analysis of its performance. The integer sorting algorithm. procedure sort (sequence,k,M,B) k prime = max(floorleftM/Bfloorright,2) // compute k prime if (k>2) then call one...

  13. Product Efficiency Cases

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy AEnergyPresidential PermitDAYSDepartment ofconducted aproduct-efficiency-cases

  14. Energy Efficiency Calendar

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES ScienceInformationInformationFor DefenseEnergy-Efficiency

  15. Industrial Energy Efficiency

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nA Guide toIMPROVEMENT OFBarriers to Industrial Energy Efficiency Report to

  16. Observation of CP Violation in B[superscript 0]?K[superscript +]?[superscript -] and B[superscript 0]??[superscript +]?[superscript -

    E-Print Network [OSTI]

    Cowan, Ray Franklin

    We report observations of CP violation in the decays B[superscript 0]?K[superscript +]?[superscript -] and B[superscript 0]??[superscript +]?[superscript -] in a sample of 383×10[superscript 6] ?(4S)?BB? events. We find ...

  17. CP Violation in Bs ? J/?ø decays at LHCb and sensitivity to the weak mixing phase ?s 

    E-Print Network [OSTI]

    Mclean, Colin David

    2009-01-01

    The LHCb experiment (CERN) will offer a precise hadronic probe with which to study CP violation, rare decays and possible New Physics (NP) effects occurring in the b-system. Contained within the vast physics program is ...

  18. Violation of the first law of black hole thermodynamics in f(T) gravity

    SciTech Connect (OSTI)

    Miao, Rong-Xin; Li, Miao; Miao, Yan-Gang E-mail: mli@itp.ac.cn

    2011-11-01

    We prove that, in general, the first law of black hole thermodynamics, ?Q = T?S, is violated in f(T) gravity. As a result, it is possible that there exists entropy production, which implies that the black hole thermodynamics can be in non-equilibrium even in the static spacetime. This feature is very different from that of f(R) or that of other higher derivative gravity theories. We find that the violation of first law results from the lack of local Lorentz invariance in f(T) gravity. By investigating two examples, we note that f''(0) should be negative in order to avoid the naked singularities and superluminal motion of light. When f''(T) is small, the entropy of black holes in f(T) gravity is approximatively equal to f'(T)/4 A.

  19. Measurement of time-dependent CP violation in B 0 ? ?'K 0 decays

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

    Šantelj, L.; Yusa, Y.; Abdesselam, A.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; et al

    2014-10-29

    We present a measurement of the time-dependent CP violation parameters in B0 ? ?'K0 decays. The measurement is based on the full data sample containing 772×106 BB-bar pairs collected at the ?(4S) resonance using the Belle detector at the KEKB asymmetric-energy e+e- collider. The measured values of the mixing-induced and direct CP violation parameters are: sin 2?1eff = +0.68 ± 0.07 ± 0.03, A?'K0 = +0.03 ± 0.05 ± 0.04, where the first uncertainty is statistical and the second is systematic. The values obtained are the most accurate to date. Furthermore, these results are consistent with our previous measurements andmore »with the world-average value of sin 2?1 measured in B0 ? J/?K0 decays.« less

  20. Necessary condition for local quantum operations and classical communication with extensive violation by separable operations

    E-Print Network [OSTI]

    Scott M. Cohen

    2013-11-11

    We give a conceptually simple necessary condition such that a separable quantum operation can be implemented by local operations on subsystems and classical communication between parties (LOCC), a condition which follows from a novel approach to understanding LOCC. This necessary condition holds for any number of parties and any finite number of rounds of communication and as such, also provides a completely general sufficient condition that a given separable operation cannot be exactly implemented by LOCC. Furthermore, it demonstrates an extremely strong difference between separable operations and LOCC, in that there exist examples of the former for which the condition is extensively violated. More precisely, the violation by separable operations of our necessary condition for LOCC grows without limit as the number of parties increases.

  1. Lepton-flavor-violating decay {tau}{yields}{mu}{mu}{mu} at the CERN LHC

    SciTech Connect (OSTI)

    Giffels, M.; Stahl, A. [III. Physikalisches Institut, RWTH Aachen, 52056 Aachen (Germany); Kallarackal, J. [Institut fuer Theoretische Physik, RWTH Aachen, 52074 Aachen (Germany); Institut fuer Physik, Humboldt-Universitaet zu Berlin, 12489 Berlin (Germany); Kraemer, M.; O'Leary, B. [Institut fuer Theoretische Physik, RWTH Aachen, 52074 Aachen (Germany)

    2008-04-01

    Lepton-flavor-violating {tau} decays are predicted in many extensions of the standard model at a rate observable at future collider experiments. In this article we focus on the decay {tau}{yields}{mu}{mu}{mu}, which is a promising channel to observe lepton-flavor violation at the CERN Large Hadron Collider (LHC). We present analytic expressions for the differential decay width derived from a model-independent effective Lagrangian with general four-fermion operators, and estimate the experimental acceptance for detecting the decay {tau}{yields}{mu}{mu}{mu} at the LHC. Specific emphasis is given to decay angular distributions and how they can be used to discriminate new physics models. We provide specific predictions for various extensions of the standard model, including supersymmetric, little Higgs, and technicolor models.

  2. Violation of Bell's inequality with a quantum dot in a tapered nanowire waveguide

    E-Print Network [OSTI]

    Klaus D. Jöns; Lucas Schweickert; Marijn A. M. Versteegh; Dan Dalacu; Philip J. Poole; Angelo Gulinatti; Andrea Giudice; Val Zwiller; Michael E. Reimer

    2015-10-13

    We present a bright and directional polarization-entangled photon-pair source generated by a photonic nanostructure that violates Bell's inequality. The solid-state quantum light source is an InAsP quantum dot in a tapered InP nanowire waveguide. Utilizing quasi-resonant excitation at the wurtzite InP nanowire resonance reduces multi-photon emission resulting in an entanglement fidelity of $F=0.835\\,\\pm\\,0.004$ without temporal post-selection. The performed Bell test using the Clauser-Horne-Shimony-Holt inequality reveals clear violation ($S_{\\text{CHSH}}>2$) of the local hidden variable theory by 3.5 standard deviations and highlights the possible application in source-independent quantum key distribution.

  3. Strict Limit on CPT Violation from Polarization of Gamma-Ray Bursts

    E-Print Network [OSTI]

    Kenji Toma; Shinji Mukohyama; Daisuke Yonetoku; Toshio Murakami; Shuichi Gunji; Tatehiro Mihara; Yoshiyuki Morihara; Tomonori Sakashita; Takuya Takahashi; Yudai Wakashima; Hajime Yonemochi; Noriyuki Toukairin

    2012-11-09

    We report the strictest observational verification of CPT invariance in the photon sector, as a result of gamma-ray polarization measurement of distant gamma-ray bursts (GRBs), which are brightest stellar-size explosions in the universe. We detected the gamma-ray polarization of three GRBs with high significance, and the source distances may be constrained by a well-known luminosity indicator for GRBs. For the Lorentz- and CPT-violating dispersion relation E_{\\pm}^2=p^2 \\pm 2\\xi p^3/M_{Pl}, where \\pm denotes different circular polarization states of the photon, the parameter \\xi is constrained as |\\xi|violating effect leads to the expectation that quantum gravity presumably respects the CPT invariance.

  4. Measurement of time-dependent CP violation in B0 ? ?'K0 decays

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

    Šantelj, L.; Yusa, Y.; Abdesselam, A.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Ayad, R.; et al

    2014-10-29

    We present a measurement of the time-dependent CP violation parameters in B0 ? ?'K0 decays. The measurement is based on the full data sample containing 772×106 BB¯ pairs collected at the ?(4S) resonance using the Belle detector at the KEKB asymmetric-energy e+e- collider. The measured values of the mixing-induced and direct CP violation parameters are: sin 2?eff1 = +0.68 ± 0.07 ± 0.03, A?'K0 = +0.03 ± 0.05 ± 0.04, where the first uncertainty is statistical and the second is systematic. The values obtained are the most accurate to date. Furthermore, these results are consistent with our previous measurements andmore »with the world-average value of sin 2?1 measured in B0 ? J/?K0 decays.« less

  5. Measurement of Polarization and Search for CP Violation in Bs0??? Decays

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

    Aaltonen, T.; Álvarez González, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Appel, J. A.; Apresyan, A.; et al

    2011-12-22

    We present the first measurement of polarization and CP-violating asymmetries in a Bs0 decay into two light vector mesons, Bs0???, and an improved determination of its branching ratio using 295 decays reconstructed in a data sample corresponding to 2.9 fb?¹ of integrated luminosity collected by the CDF experiment at the Fermilab Tevatron collider. The fraction of longitudinal polarization is determined to be fL=0.348±0.041(stat)±0.021(syst), and the branching ratio B(Bs0???)=[2.32±0.18(stat)±0.82(syst)]×10??. Asymmetries of decay angle distributions sensitive to CP violation are measured to be Au=-0.007±0.064(stat)±0.018(syst) and Av=-0.120±0.064(stat)±0.016(syst).

  6. Direct and indirect constraints on CP-violating Higgs-quark and Higgs-gluon interactions

    E-Print Network [OSTI]

    Y. -T. Chien; V. Cirigliano; W. Dekens; J. de Vries; E. Mereghetti

    2015-10-02

    We investigate direct and indirect constraints on the complete set of anomalous CP-violating Higgs couplings to quarks and gluons originating from dimension-6 operators, by studying their signatures at the LHC and in electric dipole moments (EDMs). We show that existing uncertainties in hadronic and nuclear matrix elements have a significant impact on the interpretation of EDM experiments, and we quantify the improvements needed to fully exploit the power of EDM searches. Currently, the best bounds on the anomalous CP-violating Higgs interactions come from a combination of EDM measurements and the data from LHC Run 1. We argue that Higgs production cross section measurements at the LHC Run 2 will not improve the constraints significantly. On the other hand, the bounds on the couplings scale roughly linearly with EDM limits, so that future theoretical and experimental EDM developments can have a major impact in pinning down interactions of the Higgs.

  7. Strong CP violation and chiral symmetry breaking in hot and dense quark matter

    E-Print Network [OSTI]

    Bhaswar Chatterjee; Hiranmaya Mishra; Amruta Mishra

    2011-11-17

    We investigate chiral symmetry breaking and strong CP violation effects in the phase diagram of strongly interacting matter. We demonstrate the effect of strong CP violating terms on the phase structure at finite temperature and densities in a 3-flavor Nambu-Jona-Lasinio (NJL) model including the Kobayashi-Maskawa-t'Hooft (KMT) determinant term. This is investigated using an explicit structure for the ground state in terms of quark-antiquark condensates for both in the scalar and the pseudoscalar channels. CP restoring transition with temperature at zero baryon density is found to be a second order transition at $\\theta = \\pi$ while the same at finite chemical potential and small temperature turns out to be a first order transition. Within the model, the tri-critical point turns out to be $(T_c,\\mu_c)\\simeq(273,94)$ MeV at $\\theta = \\pi$ for such a transition.

  8. Violation of Kubo-Martin-Schwinger condition along a Rindler trajectory in polymer quantization

    E-Print Network [OSTI]

    Golam Mortuza Hossain; Gopal Sardar

    2015-10-26

    Existence of Unruh effect is often understood from the property of two-point function along Rindler trajectory where it satisfies KMS condition. In particular, it exhibits the so-called KMS periodicity along imaginary time direction. Corresponding period is then identified with reciprocal of Unruh temperature times Boltzmann constant. We show here that the two-point function including leading order perturbative corrections due to polymer quantization, the quantization method used in loop quantum gravity, violates KMS condition in low-energy regime. This violation is caused by correction terms which are not Lorentz invariants. Consequently, polymer corrected two-point function along Rindler trajectory looses its thermal interpretation. We discuss its implications on existence of Unruh effect in the context of polymer quantization.

  9. Energy efficiency in office technology

    E-Print Network [OSTI]

    Dandridge, Cyane Bemiss

    1994-01-01

    This thesis, directed toward a wide variety of persons interested in energy efficiency issues with office technology, explores several issues relating to reducing energy use and improving energy efficiency of office ...

  10. Behavior-based Energy Efficiency

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

    Behavior-based Energy Efficiency in the Pacific Northwest Clark PUD and BPA teamed up for a pilot of an innovative behavior-based energy efficiency program. Clark's pilot design...

  11. Energy Efficiency Standards for Appliances

    Broader source: Energy.gov [DOE]

    In 2007 the District of Columbia (D.C.) enacted legislation, entitled the Energy Efficiency Standards Act of 2007, which created efficiency standards for six products, four of which were...

  12. CEMI Industrial Efficiency (text version)

    Broader source: Energy.gov [DOE]

    Below is the text version for the Clean Energy Manufacturing Initiative Industrial Efficiency and Energy Productivity Video.  

  13. Midwest Industrial Energy Efficiency Handbook

    SciTech Connect (OSTI)

    2010-06-25

    This Industrial Technologies Program handbook connects industry with the various energy efficiency resources available in the midwest.

  14. Water-Efficiency Program Prioritization

    Broader source: Energy.gov [DOE]

    Presentation outlines water-efficiency program requirements and priorities as presented to Federal agencies by the Federal Energy Management Program.

  15. Energy Efficiency Rebate Programs 101

    Broader source: Energy.gov [DOE]

    This webinar covers national energy efficiency program funding levels, funding sources, residential program characteristics, and a case study.

  16. Topological BPS vortices in a Maxwell-Higgs model with a CPT-odd and Lorentz-violating nonminimal coupling

    E-Print Network [OSTI]

    Casana, Rodolfo; Mota, Alexsandro Lucena

    2015-01-01

    We have studied the existence of topological self-dual vortices in a nonminimal CPT-odd and Lorentz-violating Maxwell-Higgs model. The Lorentz-violating nonminimal interaction is introduced via a modification of the usual covariant derivative coupling the Higgs and the gauge sectors. The self-dual solutions behave similarly to the Abrikosov-Nielsen-Olesen vortices, are electrically neutral and their total energy is proportional to the quantized magnetic flux.

  17. Search for CP violation in tau and D decays with a K0S in the final state

    E-Print Network [OSTI]

    Maurizio Martinelli

    2011-08-31

    I report the recent searches for CP violation in tau and D decays including a K0S in the final state. The analyses herein shown are based on data samples recorded by BaBar and Belle experiments. A brief introduction on CP violation is followed by the summary of the experimental techniques and the results obtained for tau and D decays, respectively. Finally, an outlook on future development is provided.

  18. Search for CP Violation in $\\tau$ And D Decays With a $K^0_S$ in the Final State

    SciTech Connect (OSTI)

    Martinelli, Maurizio; /Bari U. /INFN, Bari /SLAC

    2012-09-14

    I report the recent searches for CP violation in {tau} and D decays including a K{sub s}{sup 0} in the final state. The analyses herein shown are based on data samples recorded by BABAR and Belle experiments. A brief introduction on CP violation is followed by the summary of the experimental techniques and the results obtained for {tau} and D decays, respectively. Finally, an outlook on future development is provided.

  19. Detecting the Violation of Factorial Invariance with an Unknown Reference Variable 

    E-Print Network [OSTI]

    Jung, Eunju

    2014-08-04

    DETECTING THE VIOLATION OF FACTORIAL INVARIANCE WITH AN UNKNOWN REFERENCE VARIABLE A Dissertation by EUNJU JUNG Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment... Factor Analysis PFI Partial Factorial Invariance PMI Partial Metric Invariance PSI Partial Scalar Invariance ST-IM Standardization Identification Method RV Reference Variable RV-IM Reference Variable Identification Method VRV-IM Variation...

  20. Towards a realistic model of quarks and leptons, leptonic CP violation and neutrinoless $??$-decay

    E-Print Network [OSTI]

    Y. H. Ahn; Paolo Gondolo

    2014-12-09

    In order to explain the fermion masses and mixings naturally, we introduce a specific flavor symmetry and mass suppression pattern that constrain the flavor structure of the fermion Yukawa couplings. Our model describes why the hierarchy of neutrino masses is milder than the hierarchy of charged fermion masses in terms of successive powers of flavon fields. We investigate CP violation and neutrinoless double beta ($0\