학술논문
First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment
Document Type
article
Author
Aalbers, J; Akerib, DS; Akerlof, CW; Musalhi, AK Al; Alder, F; Alqahtani, A; Alsum, SK; Amarasinghe, CS; Ames, A; Anderson, TJ; Angelides, N; Araújo, HM; Armstrong, JE; Arthurs, M; Azadi, S; Bailey, AJ; Baker, A; Balajthy, J; Balashov, S; Bang, J; Bargemann, JW; Barry, MJ; Barthel, J; Bauer, D; Baxter, A; Beattie, K; Belle, J; Beltrame, P; Bensinger, J; Benson, T; Bernard, EP; Bhatti, A; Biekert, A; Biesiadzinski, TP; Birch, HJ; Birrittella, B; Blockinger, GM; Boast, KE; Boxer, B; Bramante, R; Brew, CAJ; Brás, P; Buckley, JH; Bugaev, VV; Burdin, S; Busenitz, JK; Buuck, M; Cabrita, R; Carels, C; Carlsmith, DL; Carlson, B; Carmona-Benitez, MC; Cascella, M; Chan, C; Chawla, A; Chen, H; Cherwinka, JJ; Chott, NI; Cole, A; Coleman, J; Converse, MV; Cottle, A; Cox, G; Craddock, WW; Creaner, O; Curran, D; Currie, A; Cutter, JE; Dahl, CE; David, A; Davis, J; Davison, TJR; Delgaudio, J; Dey, S; de Viveiros, L; Dobi, A; Dobson, JEY; Druszkiewicz, E; Dushkin, A; Edberg, TK; Edwards, WR; Elnimr, MM; Emmet, WT; Eriksen, SR; Faham, CH; Fan, A; Fayer, S; Fearon, NM; Fiorucci, S; Flaecher, H; Ford, P; Francis, VB; Fraser, ED; Fruth, T; Gaitskell, RJ; Gantos, NJ; Garcia, D; Geffre, A; Gehman, VM; Genovesi, J
Source
Physical Review Letters. 131(4)
Subject
Language
Abstract
The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN's first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9 GeV/c^{2}. The most stringent limit is set for spin-independent scattering at 36 GeV/c^{2}, rejecting cross sections above 9.2×10^{-48} cm at the 90% confidence level.