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Akerib DS, Araújo HM, Bai X, Bailey AJ, Balajthy J, Bedikian S, Bernard E, Bernstein A, Bolozdynya A, Bradley A, Byram D, Cahn SB, Carmona-Benitez MC, Chan C, Chapman JJ, Chiller AA, Chiller C, Clark K, Coffey T, Currie A, Curioni A, Dazeley S, de Viveiros L, Dobi A, Dobson J, Dragowsky EM, Druszkiewicz E, Edwards B, Faham CH, Fiorucci S, Flores C, Gaitskell RJ, Gehman VM, Ghag C, Gibson KR, Gilchriese MGD, Hall C, Hanhardt M, Hertel SA, Horn M, Huang DQ, Ihm M, Jacobsen RG, Kastens L, Kazkaz K, Knoche R, Kyre S, Lander R, Larsen NA, Lee C, Leonard DS, Lesko KT, Lindote A, Lopes MI, Lyashenko A, Malling DC, Mannino R, McKinsey DN, Mei DM, Mock J, Moongweluwan M, Morad J, Morii M, Murphy ASJ, Nehrkorn C, Nelson H, Neves F, Nikkel JA, Ott RA, Pangilinan M, Parker PD, Pease EK, Pech K, Phelps P, Reichhart L, Shutt T, Silva C, Skulski W, Sofka CJ, Solovov VN, Sorensen P, Stiegler T, O'Sullivan K, Sumner TJ, Svoboda R, Sweany M, Szydagis M, Taylor D, Tennyson B, Tiedt DR, Tripathi M, Uvarov S, Verbus JR, Walsh N, Webb R, White JT, White D, Witherell MS, Wlasenko M, Wolfs FLH, Woods M, Zhang C. First results from the LUX dark matter experiment at the Sanford underground research facility. Phys Rev Lett 2014; 112:091303. [PMID: 24655239 DOI: 10.1103/physrevlett.112.091303] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Indexed: 06/03/2023]
Abstract
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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Affiliation(s)
- D S Akerib
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - H M Araújo
- High Energy Physics, Imperial College London, Blackett Laboratory, London SW7 2BZ, United Kingdom
| | - X Bai
- South Dakota School of Mines and Technology, 501 East St Joseph Street, Rapid City, South Dakota 57701, USA
| | - A J Bailey
- High Energy Physics, Imperial College London, Blackett Laboratory, London SW7 2BZ, United Kingdom
| | - J Balajthy
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - S Bedikian
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - E Bernard
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - A Bernstein
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
| | - A Bolozdynya
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - A Bradley
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - D Byram
- Department of Physics, University of South Dakota, 414E Clark Street, Vermillion, South Dakota 57069, USA
| | - S B Cahn
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - M C Carmona-Benitez
- Department 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, USA
| | - C Chan
- Department of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - J J Chapman
- Department of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - A A Chiller
- Department of Physics, University of South Dakota, 414E Clark Street, Vermillion, South Dakota 57069, USA
| | - C Chiller
- Department of Physics, University of South Dakota, 414E Clark Street, Vermillion, South Dakota 57069, USA
| | - K Clark
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - T Coffey
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - A Currie
- High Energy Physics, Imperial College London, Blackett Laboratory, London SW7 2BZ, United Kingdom
| | - A Curioni
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - S Dazeley
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
| | - L de Viveiros
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - A Dobi
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - J Dobson
- SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3JZ, United Kingdom
| | - E M Dragowsky
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - E Druszkiewicz
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - B Edwards
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - C H Faham
- Department of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA and Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - S Fiorucci
- Department of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - C Flores
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - R J Gaitskell
- Department of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - V M Gehman
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - C Ghag
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - K R Gibson
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - M G D Gilchriese
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - C Hall
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - M Hanhardt
- South 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, USA
| | - S A Hertel
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - M Horn
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - D Q Huang
- Department of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - M Ihm
- Department of Physics, University of California Berkeley, Berkeley, California 94720, USA
| | - R G Jacobsen
- Department of Physics, University of California Berkeley, Berkeley, California 94720, USA
| | - L Kastens
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - K Kazkaz
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
| | - R Knoche
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - S Kyre
- Department of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - R Lander
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - N A Larsen
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - C Lee
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - D S Leonard
- Department of Physics, University of Maryland, College Park, Maryland 20742, USA
| | - K T Lesko
- Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA
| | - A Lindote
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - M I Lopes
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - A Lyashenko
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - D C Malling
- Department of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - R Mannino
- Department of Physics, Texas A & M University, College Station, Texas 77843, USA
| | - D N McKinsey
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - D-M Mei
- Department of Physics, University of South Dakota, 414E Clark Street, Vermillion, South Dakota 57069, USA
| | - J Mock
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - M Moongweluwan
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - J Morad
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - M Morii
- Department of Physics, Harvard University, 17 Oxford Street, Cambridge, Massachusetts 02138, USA
| | - A St J Murphy
- SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3JZ, United Kingdom
| | - C Nehrkorn
- Department of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - H Nelson
- Department of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - F Neves
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - J A Nikkel
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - R A Ott
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - M Pangilinan
- Department of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - P D Parker
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - E K Pease
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - K Pech
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - P Phelps
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - L Reichhart
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - T Shutt
- Department of Physics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
| | - C Silva
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - W Skulski
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - C J Sofka
- Department of Physics, Texas A & M University, College Station, Texas 77843, USA
| | - V N Solovov
- LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - P Sorensen
- Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA
| | - T Stiegler
- Department of Physics, Texas A & M University, College Station, Texas 77843, USA
| | - K O'Sullivan
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - T J Sumner
- High Energy Physics, Imperial College London, Blackett Laboratory, London SW7 2BZ, United Kingdom
| | - R Svoboda
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - M Sweany
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - M Szydagis
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - D Taylor
- South Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USA
| | - B Tennyson
- Department of Physics, Yale University, 217 Prospect Street, New Haven, Connecticut 06511, USA
| | - D R Tiedt
- South Dakota School of Mines and Technology, 501 East St Joseph Street, Rapid City, South Dakota 57701, USA
| | - M Tripathi
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - S Uvarov
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - J R Verbus
- Department of Physics, Brown University, 182 Hope Street, Providence, Rhode Island 02912, USA
| | - N Walsh
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - R Webb
- Department of Physics, Texas A & M University, College Station, Texas 77843, USA
| | - J T White
- Department of Physics, Texas A & M University, College Station, Texas 77843, USA
| | - D White
- Department of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - M S Witherell
- Department of Physics, University of California Santa Barbara, Santa Barbara, California 93106, USA
| | - M Wlasenko
- Department of Physics, Harvard University, 17 Oxford Street, Cambridge, Massachusetts 02138, USA
| | - F L H Wolfs
- Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA
| | - M Woods
- Department of Physics, University of California Davis, One Shields Avenue, Davis, California 95616, USA
| | - C Zhang
- Department of Physics, University of South Dakota, 414E Clark Street, Vermillion, South Dakota 57069, USA
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