학술논문
First constraints on WIMP-nucleon effective field theory couplings in an extended energy region from LUX-ZEPLIN
Document Type
article
Author
Aalbers, J; Akerib, DS; Al Musalhi, AK; Alder, F; Amarasinghe, CS; Ames, A; Anderson, TJ; Angelides, N; Araújo, HM; Armstrong, JE; Arthurs, M; Baker, A; Balashov, S; Bang, J; Bargemann, JW; Baxter, A; Beattie, K; Benson, T; Bhatti, A; Biekert, A; Biesiadzinski, TP; Birch, HJ; Bishop, E; Blockinger, GM; Boxer, B; Brew, CAJ; Brás, P; Burdin, S; Buuck, M; Carmona-Benitez, MC; Carter, M; Chawla, A; Chen, H; Cherwinka, JJ; Chott, NI; Converse, MV; Cottle, A; Cox, G; Curran, D; Dahl, CE; David, A; Delgaudio, J; Dey, S; de Viveiros, L; Ding, C; Dobson, JEY; Druszkiewicz, E; Eriksen, SR; Fan, A; Fearon, NM; Fiorucci, S; Flaecher, H; Fraser, ED; Fruth, TMA; Gaitskell, RJ; Geffre, A; Genovesi, J; Ghag, C; Gibbons, R; Gokhale, S; Green, J; van der Grinten, MGD; Hall, CR; Han, S; Hartigan-O’Connor, E; Haselschwardt, SJ; Hernandez, MA; Hertel, SA; Heuermann, G; Homenides, GJ; Horn, M; Huang, DQ; Hunt, D; Ignarra, CM; Jacquet, E; James, RS; Johnson, J; Kaboth, AC; Kamaha, AC; Khaitan, D; Khazov, A; Khurana, I; Kim, J; Kingston, J; Kirk, R; Kodroff, D; Korley, L; Korolkova, EV; Kraus, H; Kravitz, S; Kreczko, L; Krikler, B; Kudryavtsev, VA; Lee, J; Leonard, DS; Lesko, KT; Levy, C; Lin, J; Lindote, A; Linehan, R
Source
Physical Review D. 109(9)
Subject
Language
Abstract
Following the first science results of the LUX-ZEPLIN (LZ) experiment, a dual-phase xenon time projection chamber operating from the Sanford Underground Research Facility in Lead, South Dakota, USA, we report the initial limits on a model-independent nonrelativistic effective field theory describing the complete set of possible interactions of a weakly interacting massive particle (WIMP) with a nucleon. These results utilize the same 5.5 t fiducial mass and 60 live days of exposure collected for the LZ spin-independent and spin-dependent analyses while extending the upper limit of the energy region of interest by a factor of 7.5 to 270 keV. No significant excess in this high energy region is observed. Using a profile-likelihood ratio analysis, we report 90% confidence level exclusion limits on the coupling of each individual nonrelativistic WIMP-nucleon operator for both elastic and inelastic interactions in the isoscalar and isovector bases.