@article{cf0cf29a3e484f56ad3bf827584e8a83,
title = "Background determination for the LUX-ZEPLIN dark matter experiment",
abstract = "The LUX-ZEPLIN experiment recently reported limits on WIMP-nucleus interactions from its initial science run, down to 9.2×10-48 cm2 for the spin-independent interaction of a 36 GeV/c2 WIMP at 90% confidence level. In this paper, we present a comprehensive analysis of the backgrounds important for this result and for other upcoming physics analyses, including neutrinoless double-beta decay searches and effective field theory interpretations of LUX-ZEPLIN data. We confirm that the in-situ determinations of bulk and fixed radioactive backgrounds are consistent with expectations from the ex-situ assays. The observed background rate after WIMP search criteria were applied was (6.3±0.5)×10-5 events/keVee/kg/day in the low-energy region, approximately 60 times lower than the equivalent rate reported by the LUX experiment.",
author = "{The LUX-ZEPLIN Collaboration} and J. Aalbers and Akerib, {D. S.} and Musalhi, {A. K.Al} and F. Alder and Alsum, {S. K.} and Amarasinghe, {C. S.} and A. Ames and Anderson, {T. J.} and N. Angelides and Ara{\'u}jo, {H. M.} and Armstrong, {J. E.} and M. Arthurs and A. Baker and J. Bang and Bargemann, {J. W.} and A. Baxter and K. Beattie and P. Beltrame and Bernard, {E. P.} and A. Bhatti and A. Biekert and Biesiadzinski, {T. P.} and Birch, {H. J.} and Blockinger, {G. M.} and B. Boxer and Brew, {C. A.J.} and P. Br{\'a}s and S. Burdin and M. Buuck and R. Cabrita and Carmona-Benitez, {M. C.} and C. Chan and A. Chawla and H. Chen and Chiang, {A. P.S.} and Chott, {N. I.} and Converse, {M. V.} and A. Cottle and G. Cox and O. Creaner and Dahl, {C. E.} and A. David and S. Dey and {De Viveiros}, L. and C. Ding and Dobson, {J. E.Y.} and E. Druszkiewicz and Eriksen, {S. R.} and A. Fan and Fearon, {N. M.}",
note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",
year = "2023",
month = jul,
day = "1",
doi = "10.1103/PhysRevD.108.012010",
language = "English (US)",
volume = "108",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "1",
}