- Main
Improved Limits on Scattering of Weakly Interacting Massive Particles from Reanalysis of 2013 LUX Data
- Akerib, DS;
- Araújo, HM;
- Bai, X;
- Bailey, AJ;
- Balajthy, J;
- Beltrame, P;
- Bernard, EP;
- Bernstein, A;
- Biesiadzinski, TP;
- Boulton, EM;
- Bradley, A;
- Bramante, R;
- Cahn, SB;
- Carmona-Benitez, MC;
- Chan, C;
- Chapman, JJ;
- Chiller, AA;
- Chiller, C;
- Currie, A;
- Cutter, JE;
- Davison, TJR;
- de Viveiros, L;
- Dobi, A;
- Dobson, JEY;
- Druszkiewicz, E;
- Edwards, BN;
- Faham, CH;
- Fiorucci, S;
- Gaitskell, RJ;
- Gehman, VM;
- Ghag, C;
- Gibson, KR;
- Gilchriese, MGD;
- Hall, CR;
- Hanhardt, M;
- Haselschwardt, SJ;
- Hertel, SA;
- Hogan, DP;
- Horn, M;
- Huang, DQ;
- Ignarra, CM;
- Ihm, M;
- Jacobsen, RG;
- Ji, W;
- Kazkaz, K;
- Khaitan, D;
- Knoche, R;
- Larsen, NA;
- Lee, C;
- Lenardo, BG;
- Lesko, KT;
- Lindote, A;
- Lopes, MI;
- Malling, DC;
- Manalaysay, A;
- Mannino, RL;
- Marzioni, MF;
- McKinsey, DN;
- Mei, D-M;
- Mock, J;
- Moongweluwan, M;
- Morad, JA;
- Murphy, A St J;
- Nehrkorn, C;
- Nelson, HN;
- Neves, F;
- O'Sullivan, K;
- Oliver-Mallory, KC;
- Ott, RA;
- Palladino, KJ;
- Pangilinan, M;
- Pease, EK;
- Phelps, P;
- Reichhart, L;
- Rhyne, C;
- Shaw, S;
- Shutt, TA;
- Silva, C;
- Solovov, VN;
- Sorensen, P;
- Stephenson, S;
- Sumner, TJ;
- Szydagis, M;
- Taylor, DJ;
- Taylor, W;
- Tennyson, BP;
- Terman, PA;
- Tiedt, DR;
- To, WH;
- Tripathi, M;
- Tvrznikova, L;
- Uvarov, S;
- Verbus, JR;
- Webb, RC;
- White, JT;
- Whitis, TJ;
- Witherell, MS;
- Wolfs, FLH;
- Yazdani, K;
- Young, SK;
- Zhang, C
- et al.
Published Web Location
https://doi.org/10.1103/physrevlett.116.161301Abstract
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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