| Literature DB >> 27152785 |
D S Akerib1,2,3, H M Araújo4, X Bai5, A J Bailey4, J Balajthy6, P Beltrame7, E P Bernard8, A Bernstein9, T P Biesiadzinski1,2,3, E M Boulton8, A Bradley1, R Bramante1,2,3, 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 Hanhardt5,18, S J Haselschwardt10, S A Hertel8,15,19, D P Hogan19, M Horn8,15,19, D Q Huang11, C M Ignarra2,3, M Ihm15,19, R G Jacobsen15,19, W Ji1,2,3, K Kazkaz9, D Khaitan17, R Knoche6, N A Larsen8, C Lee1,2,3, B G Lenardo9,13, K T Lesko15, A Lindote14, M I Lopes14, D C Malling11, A Manalaysay13, R L Mannino20, M F Marzioni7, D N McKinsey8,15,19, D-M Mei12, J Mock21, M Moongweluwan17, J A Morad13, A St J Murphy7, C Nehrkorn10, H N Nelson10, F Neves14, K O'Sullivan8,15,19, K C Oliver-Mallory15,19, R A Ott13, K J Palladino2,3,22, M Pangilinan11, E K Pease8,15,19, P Phelps1, L Reichhart16, C Rhyne11, S Shaw16, T A Shutt1,2,3, 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 To1,2,3, M Tripathi13, L Tvrznikova8,15,19, S Uvarov13, J R Verbus11, R C Webb20, J T White20, T J Whitis1,2,3, M S Witherell10, F L H Wolfs17, K Yazdani4, S K Young21, C Zhang12.
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.Entities:
Year: 2016 PMID： 27152785 DOI： 10.1103/PhysRevLett.116.161301
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161