Results from a Search for Dark Matter in the Complete LUX Exposure
D. S. AkeribCase Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USAS. AlsumUniversity of Wisconsin-Madison, Department of Physics, 1150 University Avenue, Madison, Wisconsin 53706, USAH. M. AraújoImperial College London, High Energy Physics, 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. BaileyImperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United KingdomJ. BalajthyUniversity of Maryland, Department of Physics, College Park, Maryland 20742, USAP. BeltrameSUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United KingdomE. P. BernardUniversity of California Berkeley, Department of Physics, Berkeley, California 94720, USAA. BernsteinLawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USAT. P. BiesiadzinskiCase Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USAE. M. BoultonUniversity of California Berkeley, Department of Physics, Berkeley, California 94720, USAR. BramanteCase Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USAP. BrásLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalD. ByramSouth Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USAS. B. CahnYale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USAM. C. Carmona-BenitezUniversity of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USAC. ChanBrown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USAA. A. ChillerUniversity of South Dakota, Department of Physics, 414E Clark Street, Vermillion, South Dakota 57069, USAC. ChillerUniversity of South Dakota, Department of Physics, 414E Clark Street, Vermillion, South Dakota 57069, USAA. CurrieImperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United KingdomJ. E. CutterUniversity of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USAT. J. R. DavisonSUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United KingdomA. DobiLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAJ. E. Y. DobsonDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United KingdomE. DruszkiewiczUniversity of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USAB. EdwardsYale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USAC.H. FahamLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAS. FiorucciBrown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USAR. J. GaitskellBrown University, Department of Physics, 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. GibsonCase Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USAM. G. D. GilchrieseLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAC. HallUniversity of Maryland, Department of Physics, College Park, Maryland 20742, USAM. HanhardtSouth Dakota School of Mines and Technology, 501 East St. Joseph Street, Rapid City, South Dakota 57701, USAS. J. HaselschwardtUniversity of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USAS. A. HertelUniversity of California Berkeley, Department of Physics, Berkeley, California 94720, USAD. P. HoganUniversity of California Berkeley, Department of Physics, Berkeley, California 94720, USAM. HornSouth Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USAD. Q. HuangBrown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USAC. M. IgnarraKavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USAM. IhmUniversity of California Berkeley, Department of Physics, Berkeley, California 94720, USAR. G. JacobsenUniversity of California Berkeley, Department of Physics, Berkeley, California 94720, USAW. JiCase Western Reserve UniversityK. KamdinUniversity of California Berkeley, Department of Physics, Berkeley, California 94720, USAK. KazkazLawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USAD. KhaitanUniversity of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USAR. KnocheUniversity of Maryland, Department of Physics, College Park, Maryland 20742, USANicole LarsenYale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USAC. LeeCase Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USAB. G. LenardoLawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, 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. ManalaysayUniversity of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USAR. L. ManninoTexas A and M University, Department of Physics, College Station, Texas 77843, USAM. F. MarzioniSUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United KingdomD. N. McKinseyLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USADongming MeiUniversity of South Dakota, Department of Physics, 414E Clark Street, Vermillion, South Dakota 57069, USAJ. MockUniversity at Albany, State University of New York, Department of Physics, 1400 Washington Avenue, Albany, New York 12222, USAM. MoongweluwanUniversity of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USAJ. A. MoradUniversity of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USAA. St. J. MurphySUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United KingdomC. NehrkornUniversity of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USAH. NelsonUniversity of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USAF. NevesLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalK. O’SullivanLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAK. C. Oliver-MalloryUniversity of California Berkeley, Department of Physics, Berkeley, California 94720, USAK. J. PalladinoKavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USAE. K. PeaseLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAP. PhelpsCase Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USAL. ReichhartDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United KingdomC. RhyneBrown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USAS. ShawDepartment of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United KingdomT. A. ShuttCase Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USAC. SilvaLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalM. SolmazUniversity of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USAV. N. SolovovLIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, PortugalP. SørensenLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAScott StephensonUniversity of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USAT. J. SumnerImperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United KingdomM. SzydagisUniversity at Albany, State University of New York, Department of Physics, 1400 Washington Avenue, Albany, New York 12222, USAD. J. TaylorSouth Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USAWC TaylorBrown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USAB. P. TennysonYale University, Department of Physics, 217 Prospect Street, New Haven, Connecticut 06511, USAP. A. TermanTexas A and M University, Department of Physics, College Station, Texas 77843, USAD. R. TiedtSouth Dakota School of Mines and Technology, 501 East St. Joseph Street, Rapid City, South Dakota 57701, USAW. ToCase Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USAM. TripathiUniversity of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USAL. TvrznikovaUniversity of California Berkeley, Department of Physics, Berkeley, California 94720, USAS. UvarovUniversity of California Davis, Department of Physics, One Shields Avenue, Davis, California 95616, USAJ.R. VerbusBrown University, Department of Physics, 182 Hope Street, Providence, Rhode Island 02912, USAR. C. WebbTexas A and M University, Department of Physics, College Station, Texas 77843, USAJ. T. WhiteTexas A and M University, Department of Physics, College Station, Texas 77843, USAT. J. WhitisCase Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USAM. S. WitherellLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USAF. L. H. WolfsUniversity of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USAJing XuLawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94551, USAKamran YazdaniImperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United KingdomS. K. YoungUniversity at Albany, State University of New York, Department of Physics, 1400 Washington Avenue, Albany, New York 12222, USA
2017en
ABI
Аннотация
We report constraints on spin-independent weakly interacting massive particle (WIMP)-nucleon scattering using a 3.35×10^{4} kg day exposure of the Large Underground Xenon (LUX) experiment. A dual-phase xenon time projection chamber with 250 kg of active mass is operated at the Sanford Underground Research Facility under Lead, South Dakota (USA). With roughly fourfold improvement in sensitivity for high WIMP masses relative to our previous results, this search yields no evidence of WIMP nuclear recoils. At a WIMP mass of 50 GeV c^{-2}, WIMP-nucleon spin-independent cross sections above 2.2×10^{-46} cm^{2} are excluded at the 90% confidence level. When combined with the previously reported LUX exposure, this exclusion strengthens to 1.1×10^{-46} cm^{2} at 50 GeV c^{-2}.
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