Background determination for the LUX-ZEPLIN dark matter experiment

被引：17

作者：

Aalbers, J. ^{[1
,2
]}

Akerib, D. S. ^{[1
,2
]}

Al Musalhi, A. K. ^{[3
]}

Alder, F. ^{[4
]}

Alsum, S. K. ^{[5
]}

Amarasinghe, C. S. ^{[6
]}

Ames, A. ^{[1
,2
]}

Anderson, T. J. ^{[1
,2
]}

Angelides, N. ^{[4
,7
]}

Araujo, H. M. ^{[7
]}

Armstrong, J. E. ^{[8
]}

Arthurs, M. ^{[6
]}

Baker, A. ^{[7
]}

Bang, J. ^{[9
]}

Bargemann, J. W. ^{[10
]}

Baxter, A. ^{[11
]}

Beattie, K. ^{[12
]}

Beltrame, P. ^{[4
]}

Bernard, E. P. ^{[12
,13
]}

Bhatti, A. ^{[8
]}

Biekert, A. ^{[12
,13
]}

Biesiadzinski, T. P. ^{[1
,2
]}

Birch, H. J. ^{[6
]}

Blockinger, G. M. ^{[14
]}

Boxer, B. ^{[15
]}

Brew, C. A. J. ^{[16
]}

Bras, P. ^{[17
]}

Burdin, S. ^{[11
]}

Buuck, M. ^{[1
,2
]}

Cabrita, R. ^{[17
]}

Carmona-Benitez, M. C. ^{[18
]}

Chan, C. ^{[9
]}

Chawla, A. ^{[19
]}

Chen, H. ^{[12
]}

Chiang, A. P. S. ^{[7
]}

Chott, N. I. ^{[20
]}

V. Converse, M. ^{[21
]}

Cottle, A. ^{[3
]}

Cox, G. ^{[18
]}

Creaner, O. ^{[12
]}

Dahl, C. E. ^{[22
,23
]}

David, A. ^{[4
]}

Dey, S. ^{[3
]}

de Viveiros, L. ^{[18
]}

Ding, C. ^{[9
]}

Dobson, J. E. Y. ^{[4
]}

Druszkiewicz, E. ^{[21
]}

Eriksen, S. R. ^{[24
]}

Fan, A. ^{[1
,2
]}

Fearon, N. M. ^{[3
]}

机构：

[1] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[2] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA

[3] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[4] Univ Coll London UCL, Dept Phys & Astron, London WC1E 6BT, England

[5] Univ Wisconsin Madison, Dept Phys, Madison, WI 53706 USA

[6] Univ Michigan, Randall Lab Phys, Ann Arbor, MI 48109 USA

[7] Imperial Coll London, Dept Phys, Blackett Lab, London SW7 2AZ, England

[8] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[9] Brown Univ, Dept Phys, Providence, RI 02912 USA

[10] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[11] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, England

[12] Lawrence Berkeley Natl Lab LBNL, Berkeley, CA 94720 USA

[13] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[14] SUNY Albany, Dept Phys, Albany, NY 12222 USA

[15] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[16] STFC Rutherford Appleton Lab RAL, Didcot OX11 0QX, England

[17] Univ Coimbra, Lab Instrumentacao Fis Expt Particulas LIP, P-3004516 Coimbra, Portugal

[18] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[19] Royal Holloway Univ London, Dept Phys, Egham TW20 0EX, England

[20] South Dakota Sch Mines & Technol, Rapid City, SD 57701 USA

[21] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

[22] Fermi Natl Accelerator Lab FNAL, Batavia, IL 60510 USA

[23] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

[24] Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, England

[25] Brookhaven Natl Lab BNL, Upton, NY 11973 USA

[26] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[27] South Dakota Sci & Technol Author SDSTA, Sanford Underground Res Facil, Lead, SD 57754 USA

[28] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[29] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, England

[30] Univ Edinburgh, Sch Phys & Astron, SUPA, Edinburgh EH9 3FD, Scotland

[31] IBS Ctr Underground Phys CUP, Daejeon, South Korea

[32] Lawrence Livermore Natl Lab LLNL, Livermore, CA 94550 USA

[33] Vatican Observ, Castel Gandolfo, V-00120 Castel Gandolfo, Vatican City St, Vatican

[34] Black Hills State Univ, Sch Nat Sci, Spearfish, SD 57799 USA

[35] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA

[36] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

来源：

PHYSICAL REVIEW D | 2023年 / 108卷 / 01期

基金：

美国国家科学基金会; 英国科学技术设施理事会;

关键词：

NUCLEAR-DATA SHEETS; XENON DETECTORS;

D O I：

10.1103/PhysRevD.108.012010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The LUX-ZEPLIN experiment recently reported limits on WIMP-nucleus interactions from its initial science run, down to 9.2 x 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 & PLUSMN; 0.5) x 10-5 events/keVee/kg/day in the low-energy region, approximately 60 times lower than the equivalent rate reported by the LUX experiment.

引用

页数：27

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