First Results from the LUX Dark Matter Experiment at the Sanford Underground Research Facility
D. S. AkeribDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAH. M. AraújoHigh Energy Physics, Imperial College London, Blackett Laboratory, London SW7 2BZ, United KingdomX. BaiSouth Dakota School of Mines and Technology, 501 East St Joseph Street, Rapid City, South Dakota 57701, USAA. J. BaileyHigh Energy Physics, Imperial College London, Blackett Laboratory, London SW7 2BZ, United KingdomJ. BalajthyDepartment of Physics, University of Maryland, College Park, Maryland 20742, USAS. BedikianDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAE. P. BernardDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAA. BernsteinLawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USAA. BolozdynyaDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAA. BradleyDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAD. ByramDepartment of Physics, University of South Dakota, 414E Clark Street, Vermillion, South Dakota 57069, USAS. B. CahnDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAM. C. Carmona-BenitezDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA and Department of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USAC. ChanDepartment of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USAJ. ChapmanDepartment of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USAA. A. ChillerDepartment of Physics, University of South Dakota, 414E Clark Street, Vermillion, South Dakota 57069, USAC. ChillerDepartment of Physics, University of South Dakota, 414E Clark Street, Vermillion, South Dakota 57069, USAK. ClarkDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAT. CoffeyDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAA. CurrieHigh Energy Physics, Imperial College London, Blackett Laboratory, London SW7 2BZ, United KingdomA. CurioniDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAS. DazeleyLawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USAL. de ViveirosLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalA. DobiDepartment of Physics, University of Maryland, College Park, Maryland 20742, USAJ. E. Y. DobsonSUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3JZ, United KingdomE. DragowskyDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAE. DruszkiewiczDepartment of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USAB. N. EdwardsDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAC.H. FahamDepartment of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA and Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAS. FiorucciDepartment of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USAC. E. FloresDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAR. J. GaitskellDepartment of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USAV.M. GehmanLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAC. GhagDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United KingdomK.R. GibsonDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAM. G. D. GilchrieseLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAC. HallDepartment of Physics, University of Maryland, College Park, Maryland 20742, USAM. HanhardtSouth Dakota School of Mines and Technology, 501 East St Joseph Street, Rapid City, South Dakota 57701, USA and South Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USAS. A. HertelDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAM. HornDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAD. Q. HuangDepartment of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USAM. IhmDepartment of Physics, University of California Berkeley, Berkeley, California 94720, USAR. G. JacobsenDepartment of Physics, University of California Berkeley, Berkeley, California 94720, USAL. KastensDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAK. KazkazLawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USAR. KnocheDepartment of Physics, University of Maryland, College Park, Maryland 20742, USAS. KyreDepartment of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USAR. LanderDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USANicholas LarsenDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAC. LeeDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAD. S. LeonardDepartment of Physics, University of Maryland, College Park, Maryland 20742, USAK. T. LeskoLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAA. LindoteLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalI. LopesLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalA. LyashenkoDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAD.C. MallingDepartment of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USAR. L. ManninoDepartment of Physics, Texas A & M University, College Station, Texas 77843, USAD. N. McKinseyDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAD-M MeiDepartment of Physics, University of South Dakota, 414E Clark Street, Vermillion, South Dakota 57069, USAJ. MockDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAM. MoongweluwanDepartment of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USAJ. A. MoradDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAM. MoriiDepartment of Physics, Harvard University, 17 Oxford Street, Cambridge, Massachusetts 02138, USAA. St. J. MurphySUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3JZ, United KingdomC. NehrkornDepartment of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USAH. NelsonDepartment of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USAF. NevesLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalJ. A. NikkelDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USARichard A. OttDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAM. PangilinanDepartment of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USAP. D. ParkerDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAE. K. PeaseDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAK. PechDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAP. PhelpsDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAL. ReichhartDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United KingdomT. ShuttDepartment of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USAC. SilvaLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalW. SkulskiDepartment of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USAC. SofkaDepartment of Physics, Texas A & M University, College Station, Texas 77843, USAV. N. SolovovLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalP. SørensenLawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USAT. StieglerDepartment of Physics, Texas A & M University, College Station, Texas 77843, USAK. O’SullivanDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAT. J. SumnerHigh Energy Physics, Imperial College London, Blackett Laboratory, London SW7 2BZ, United KingdomR. SvobodaDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAMelinda SweanyDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAM. SzydagisDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAD. J. TaylorSouth Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USAB. P. TennysonDepartment of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USAD. R. TiedtSouth Dakota School of Mines and Technology, 501 East St Joseph Street, Rapid City, South Dakota 57701, USAM. TripathiDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAS. UvarovDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAJ.R. VerbusDepartment of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USAN. WalshDepartment of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USAR. C. WebbDepartment of Physics, Texas A & M University, College Station, Texas 77843, USAJ. T. WhiteDepartment of Physics, Texas A & M University, College Station, Texas 77843, USAD. WhiteDepartment of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USAM. S. WitherellDepartment of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USAM. WlasenkoDepartment of Physics, Harvard University, 17 Oxford Street, Cambridge, Massachusetts 02138, USAF. L. H. WolfsDepartment of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
2014en
ABI
Аннотация
The Large Underground Xenon (LUX) experiment is a dual-phase xenon time-projection chamber operating at the Sanford Underground Research Facility (Lead, South Dakota). The LUX cryostat was filled for the first time in the underground laboratory in February 2013. We report results of the first WIMP search data set, taken during the period from April to August 2013, presenting the analysis of 85.3 live days of data with a fiducial volume of 118 kg. A profile-likelihood analysis technique shows our data to be consistent with the background-only hypothesis, allowing 90% confidence limits to be set on spin-independent WIMP-nucleon elastic scattering with a minimum upper limit on the cross section of 7.6 × 10(-46) cm(2) at a WIMP mass of 33 GeV/c(2). We find that the LUX data are in disagreement with low-mass WIMP signal interpretations of the results from several recent direct detection experiments.
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