Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX Data

D S Akerib^{1

2

3}, H M Araújo⁴, X Bai⁵, A J Bailey⁴, J Balajthy⁶, P Beltrame⁷, E P Bernard⁸, A Bernstein⁹, T P Biesiadzinski^{1

2

3}, E M Boulton⁸, A Bradley¹, R Bramante^{1

2

3}, S B Cahn⁸, M C Carmona-Benitez¹⁰, C Chan¹¹, J J Chapman¹¹, A A Chiller¹², C Chiller¹², A Currie⁴, J E Cutter¹³, T J R Davison⁷, L de Viveiros¹⁴, A Dobi¹⁵, J E Y Dobson¹⁶, E Druszkiewicz¹⁷, B N Edwards⁸, C H Faham¹⁵, S Fiorucci¹⁵, R J Gaitskell¹¹, V M Gehman¹⁵, C Ghag¹⁶, K R Gibson¹, M G D Gilchriese¹⁵, C R Hall⁶, M Hanhardt^{5

18}, S J Haselschwardt¹⁰, S A Hertel^{8

15

19}, D P Hogan¹⁹, M Horn^{8

15

19}, D Q Huang¹¹, C M Ignarra^{2

3}, M Ihm^{15

19}, R G Jacobsen^{15

19}, W Ji^{1

2

3}, K Kazkaz⁹, D Khaitan¹⁷, R Knoche⁶, N A Larsen⁸, C Lee^{1

2

3}, B G Lenardo^{9

13}, K T Lesko¹⁵, A Lindote¹⁴, M I Lopes¹⁴, D C Malling¹¹, A Manalaysay¹³, R L Mannino²⁰, M F Marzioni⁷, D N McKinsey^{8

15

19}, D-M Mei¹², J Mock²¹, M Moongweluwan¹⁷, J A Morad¹³, A St J Murphy⁷, C Nehrkorn¹⁰, H N Nelson¹⁰, F Neves¹⁴, K O'Sullivan^{8

15

19}, K C Oliver-Mallory^{15

19}, R A Ott¹³, K J Palladino^{2

3

22}, M Pangilinan¹¹, E K Pease^{8

15

19}, P Phelps¹, L Reichhart¹⁶, C Rhyne¹¹, S Shaw¹⁶, T A Shutt^{1

2

3}, C Silva¹⁴, V N Solovov¹⁴, P Sorensen¹⁵, S Stephenson¹³, T J Sumner⁴, M Szydagis²¹, D J Taylor¹⁸, W Taylor¹¹, B P Tennyson⁸, P A Terman²⁰, D R Tiedt⁵, W H To^{1

2

3}, M Tripathi¹³, L Tvrznikova^{8

15

19}, S Uvarov¹³, J R Verbus¹¹, R C Webb²⁰, J T White²⁰, T J Whitis^{1

2

3}, M S Witherell¹⁰, F L H Wolfs¹⁷, K Yazdani⁴, S K Young²¹, C Zhang¹²; LUX Collaboration

Affiliations

¹ Case Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USA.
² SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA.
³ Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA.
⁴ Imperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United Kingdom.
⁵ South Dakota School of Mines and Technology, 501 East St Joseph St., Rapid City, South Dakota 57701, USA.
⁶ University of Maryland, Department of Physics, College Park, Maryland 20742, USA.
⁷ SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom.
⁸ Yale University, Department of Physics, 217 Prospect St., New Haven, Connecticut 06511, USA.
⁹ Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94551, USA.
¹⁰ University of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USA.
¹¹ Brown University, Department of Physics, 182 Hope St., Providence, Rhode Island 02912, USA.
¹² University of South Dakota, Department of Physics, 414E Clark St., Vermillion, South Dakota 57069, USA.
¹³ University of California Davis, Department of Physics, One Shields Ave., Davis, California 95616, USA.
¹⁴ LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal.
¹⁵ Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, California 94720, USA.
¹⁶ Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
¹⁷ University of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USA.
¹⁸ South Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USA.
¹⁹ University of California Berkeley, Department of Physics, Berkeley, California 94720, USA.
²⁰ Texas A&M University, Department of Physics, College Station, Texas 77843, USA.
²¹ University at Albany, State University of New York, Department of Physics, 1400 Washington Avenue, Albany, New York 12222, USA.
²² University of Wisconsin-Madison, Department of Physics, 1150 University Avenue, Madison, Wisconsin 53706, USA.

PMID: 27152785
DOI: 10.1103/PhysRevLett.116.161301

Free article

Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX Data

D S Akerib et al. Phys Rev Lett. 2016.

Free article

. 2016 Apr 22;116(16):161301.

doi: 10.1103/PhysRevLett.116.161301. Epub 2016 Apr 20.

Authors

Affiliations

¹ Case Western Reserve University, Department of Physics, 10900 Euclid Ave, Cleveland, Ohio 44106, USA.
² SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94205, USA.
³ Kavli Institute for Particle Astrophysics and Cosmology, Stanford University, 452 Lomita Mall, Stanford, California 94309, USA.
⁴ Imperial College London, High Energy Physics, Blackett Laboratory, London SW7 2BZ, United Kingdom.
⁵ South Dakota School of Mines and Technology, 501 East St Joseph St., Rapid City, South Dakota 57701, USA.
⁶ University of Maryland, Department of Physics, College Park, Maryland 20742, USA.
⁷ SUPA, School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom.
⁸ Yale University, Department of Physics, 217 Prospect St., New Haven, Connecticut 06511, USA.
⁹ Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94551, USA.
¹⁰ University of California Santa Barbara, Department of Physics, Santa Barbara, California 93106, USA.
¹¹ Brown University, Department of Physics, 182 Hope St., Providence, Rhode Island 02912, USA.
¹² University of South Dakota, Department of Physics, 414E Clark St., Vermillion, South Dakota 57069, USA.
¹³ University of California Davis, Department of Physics, One Shields Ave., Davis, California 95616, USA.
¹⁴ LIP-Coimbra, Department of Physics, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal.
¹⁵ Lawrence Berkeley National Laboratory, 1 Cyclotron Rd., Berkeley, California 94720, USA.
¹⁶ Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
¹⁷ University of Rochester, Department of Physics and Astronomy, Rochester, New York 14627, USA.
¹⁸ South Dakota Science and Technology Authority, Sanford Underground Research Facility, Lead, South Dakota 57754, USA.
¹⁹ University of California Berkeley, Department of Physics, Berkeley, California 94720, USA.
²⁰ Texas A&M University, Department of Physics, College Station, Texas 77843, USA.
²¹ University at Albany, State University of New York, Department of Physics, 1400 Washington Avenue, Albany, New York 12222, USA.
²² University of Wisconsin-Madison, Department of Physics, 1150 University Avenue, Madison, Wisconsin 53706, USA.

PMID: 27152785
DOI: 10.1103/PhysRevLett.116.161301

Abstract

We present constraints on weakly interacting massive particles (WIMP)-nucleus scattering from the 2013 data of the Large Underground Xenon dark matter experiment, including 1.4×10^{4} kg day of search exposure. This new analysis incorporates several advances: single-photon calibration at the scintillation wavelength, improved event-reconstruction algorithms, a revised background model including events originating on the detector walls in an enlarged fiducial volume, and new calibrations from decays of an injected tritium β source and from kinematically constrained nuclear recoils down to 1.1 keV. Sensitivity, especially to low-mass WIMPs, is enhanced compared to our previous results which modeled the signal only above a 3 keV minimum energy. Under standard dark matter halo assumptions and in the mass range above 4 GeV c^{-2}, these new results give the most stringent direct limits on the spin-independent WIMP-nucleon cross section. The 90% C.L. upper limit has a minimum of 0.6 zb at 33 GeV c^{-2} WIMP mass.

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Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX Data

Affiliations

Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX Data

Authors

Affiliations

Abstract

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