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Title: Projected sensitivities of the LUX-ZEPLIN experiment to new physics via low-energy electron recoils

Journal Article · · Physical Review D
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LUX-ZEPLIN is a dark matter detector expected to obtain world-leading sensitivity to weakly-interacting massive particles interacting via nuclear recoils with a ~7-tonne xenon target mass. This paper presents sensitivity projections to several low-energy signals of the complementary electron recoil signal type: 1) an effective neutrino magnetic moment, and 2) an effective neutrino millicharge, both for pp-chain solar neutrinos, 3) an axion flux generated by the Sun, 4) axionlike particles forming the Galactic dark matter, 5) hidden photons, 6) mirror dark matter, and 7) leptophilic dark matter. World-leading sensitivities are expected in each case, a result of the large 5.6 t 1000 d exposure and low expected rate of electron-recoil backgrounds in the < 100 keV energy regime. A consistent signal generation, background model and profile-likelihood analysis framework is used throughout.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States); Univ. of California, Santa Barbara, CA (United States); Univ. of Maryland, College Park, MD (United States); Univ. of Massachusetts, Amherst, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE National Nuclear Security Administration (NNSA)
Contributing Organization:
LZ Collaboration; LUX-ZEPLIN (LZ) Collaboration
Grant/Contract Number:
AC02-05CH11231; SC0020216; SC0012704; SC0010010; AC02-07CH11359; SC0012161; SC0014223; SC0010813; SC0009999; NA0003180; SC0011702; DESC0010072; SC0015708; SC0006605; SC0008475; FG02-10ER46709; UW PRJ82AJ; SC0013542; AC02-76SF00515; SC0018982; SC0019066; SC0015535; SC0019193; AC52-07NA27344; DOE-SC0012447; SC0010072; SC0012447; ST/M003655/1; ST/M003981/1; ST/M003744/1; ST/M003639/1; ST/M003604/1; ST/R003181/1; ST/M003469/1; ST/S000739/1; ST/S000666/1; ST/S000828/1; ST/S000879/1; ST/S000933/1; ST/S000747/1; ST/S000801/1; PTDC/FIS-PAR/28567/2017; IBS-R016-D1; SC005336; SC0019319
OSTI ID:
1832263
Alternate ID(s):
OSTI ID: 1818116; OSTI ID: 1823538; OSTI ID: 1840956; OSTI ID: 1862966; OSTI ID: 1869589; OSTI ID: 1883034; OSTI ID: 1889895; OSTI ID: 1903424; OSTI ID: 2007622
Report Number(s):
FERMILAB-PUB-21-115-E; arXiv:2102.11740; LLNL-JRNL-837669; PRVDAQ; 092009
Journal Information:
Physical Review D, Journal Name: Physical Review D Vol. 104 Journal Issue: 9; ISSN 2470-0010
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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