Results from a Search for Dark Matter in the Complete LUX Exposure
D. S. Akerib(Kavli Institute for Particle Astrophysics and Cosmology), S. Alsum(University of Wisconsin–Madison), H. M. Araújo(Imperial College London), X. Bai(South Dakota School of Mines and Technology), A. J. Bailey(Imperial College London), J. Balajthy(University of Maryland, College Park), P. Beltrame(University of Edinburgh), E. P. Bernard(University of California, Berkeley), A. Bernstein(Lawrence Livermore National Laboratory), T. P. Biesiadzinski(Menlo School), E. M. Boulton(Yale University), R. Bramante(SLAC National Accelerator Laboratory), P. Brás(University of Coimbra), D. Byram(South Dakota Science and Technology Authority), S. B. Cahn(Yale University), M. C. Carmona-Benitez(University of California, Santa Barbara), C. Chan(Brown University), A. A. Chiller(University of South Dakota), C. Chiller(University of South Dakota), A. Currie(Imperial College London), J. E. Cutter(University of California, Davis), T. J. R. Davison(University of Edinburgh), A. Dobi(Lawrence Berkeley National Laboratory), J. E. Y. Dobson(University College London), E. Druszkiewicz(University of Rochester), B. Edwards(Yale University), C.H. Faham(Lawrence Berkeley National Laboratory), S. Fiorucci(Lawrence Berkeley National Laboratory), R. J. Gaitskell(Brown University), V.M. Gehman(Lawrence Berkeley National Laboratory), C. Ghag(University College London), K.R. Gibson(Case Western Reserve University), M. G. D. Gilchriese(Lawrence Berkeley National Laboratory), C. Hall(University of Maryland, College Park), M. Hanhardt(South Dakota School of Mines and Technology), S. J. Haselschwardt(University of California, Santa Barbara), S. A. Hertel(Yale University), D. P. Hogan(University of California, Berkeley), M. Horn(University of California, Berkeley), D. Q. Huang(Brown University), C. M. Ignarra(SLAC National Accelerator Laboratory), M. Ihm(University of California, Berkeley), R. G. Jacobsen(University of California, Berkeley), W. Ji(Menlo School), K. Kamdin(University of California, Berkeley), K. Kazkaz(Lawrence Livermore National Laboratory), D. Khaitan(University of Rochester), R. Knoche(University of Maryland, College Park), Nicole Larsen(Yale University), C. Lee(Case Western Reserve University), B. G. Lenardo(Lawrence Livermore National Laboratory), K. T. Lesko(Lawrence Berkeley National Laboratory), A. Lindote(University of Coimbra), I. Lopes(University of Coimbra), A. Manalaysay(University of California, Davis), R. L. Mannino(Texas A&M University), M. F. Marzioni(University of Edinburgh), D. N. McKinsey(University of California, Berkeley), Dongming Mei(University of South Dakota), J. Mock(University at Albany, State University of New York), M. Moongweluwan(University of Rochester), J. A. Morad(University of California, Davis), A. St. J. Murphy(University of Edinburgh), C. Nehrkorn(University of California, Santa Barbara), H. Nelson(University of California, Santa Barbara), F. Neves(University of Coimbra), K. O’Sullivan(University of California, Berkeley), K. C. Oliver-Mallory(University of California, Berkeley), K. J. Palladino(University of Wisconsin–Madison), E. K. Pease(Yale University), P. Phelps(Case Western Reserve University), L. Reichhart(University College London), C. Rhyne(Brown University), S. Shaw(University College London), T. A. Shutt(Case Western Reserve University), C. Silva(University of Coimbra), M. Solmaz(University of California, Santa Barbara), V. N. Solovov(University of Coimbra), P. Sørensen(Lawrence Berkeley National Laboratory), Scott Stephenson(University of California, Davis), T. J. Sumner(Imperial College London), M. Szydagis(University at Albany, State University of New York), D. J. Taylor(South Dakota Science and Technology Authority), WC Taylor(Brown University), B. P. Tennyson(Yale University), P. A. Terman(Texas A&M University), D. R. Tiedt(South Dakota School of Mines and Technology), W. To(SLAC National Accelerator Laboratory), M. Tripathi(University of California, Davis), L. Tvrznikova(Yale University), S. Uvarov(University of California, Davis), J.R. Verbus(Brown University), R. C. Webb(Texas A&M University), J. T. White(Texas A&M University), T. J. Whitis(SLAC National Accelerator Laboratory), M. S. Witherell(Lawrence Berkeley National Laboratory), F. L. H. Wolfs(University of Rochester), Jing Xu(Lawrence Livermore National Laboratory), Kamran Yazdani(Imperial College London), S. K. Young(Albany State University), C. Zhang(University of South Dakota)
Cited by 1,590Open Access
Abstract
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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