Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX data
Creators: name: LUX Collaboration
name: Akerib, D. S.
name: Araújo, H. M.
name: Bai, X.
name: Bailey, A. J.
name: Balajthy, J.
name: Beltrame, P.
name: Bernard, E. P.
name: Bernstein, A.
name: Biesiadzinski, T. P.
name: Boulton, E. M.
name: Bradley, A.
name: Bramante, R.
name: Cahn, S. B.
name: Carmona-Benitez, M. C.
name: Chan, C.
name: Chapman, J. J.
name: Chiller, A. A.
name: Chiller, C.
name: Currie, A.
name: Cutter, J. E.
name: Davison, T. J. R.
name: de Viveiros, L.
name: Dobi, A.
name: Dobson, J. E. Y.
name: Druszkiewicz, E.
name: Edwards, B. N.
name: Faham, C. H.
name: Fiorucci, S.
name: Gaitskell, R. J.
name: Gehman, V. M.
name: Ghag, C.
name: Gibson, K. R.
name: Gilchriese, M. G. D.
name: Hall, C. R.
name: Hanhardt, M.
name: Haselschwardt, S. J.
name: Hertel, S. A.
name: Hogan, D. P.
name: Horn, M.
name: Huang, D. Q.
name: Ignarra, C. M.
name: Ihm, M.
name: Jacobsen, R. G.
name: Ji, W.
name: Kazkaz, K.
name: Khaitan, D.
name: Knoche, R.
name: Larsen, N. A.
name: Lee, C.
name: Lenardo, B. G.
name: Lesko, K. T.
name: Lindote, A.
name: Lopes, M. I.
name: Malling, D. C.
name: Manalaysay, A.
name: Mannino, R. L.
name: Marzioni, M. F.
name: McKinsey, D. N.
name: Mei, D. M.
name: Mock, J.
name: Moongweluwan, M.
name: Morad, J. A.
name: Murphy, A. St. J.
name: Nehrkorn, C.
name: Nelson, H. N.
name: Neves, F.
name: O`Sullivan, K.
name: Oliver-Mallory, K. C.
name: Ott, R. A.
name: Palladino, K. J.
name: Pangilinan, M.
name: Pease, E. K.
name: Phelps, P.
name: Reichhart, L.
name: Rhyne, C.
name: Shaw, S.
name: Shutt, T. A.
name: Silva, C.
name: Solovov, V. N.
name: Sorensen, P.
name: Stephenson, S.
name: Sumner, T. J.
name: Szydagis, M.
name: Taylor, D. J.
name: Taylor, W.
name: Tennyson, B. P.
name: Terman, P. A.
name: Tiedt, D. R.
name: To, W. H.
name: Tripathi, M.
name: Tvrznikova, L.
name: Uvarov, S.
name: Verbus, J. R.
name: Webb, R. C.
name: White, J. T.
name: Whitis, T. J.
name: Witherell, M. S.
name: Wolfs, F. L. H.
name: Yazdani, K.
name: Young, S. K.
name: Zhang, C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present constraints on weakly interacting massive particles (WIMP)-nucleus scattering from the 2013 data of the Large Underground Xenon dark matter experiment, including $1.4\times10^{4}\;\mathrm{kg\; day}$ 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 $\mathrm{GeV}\,c^{-2}$, 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 $\mathrm{GeV}\,c^{-2}$ WIMP mass.
description: Accepted by Phys. Rev. Lett