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Title: Projected sensitivity of the LUX-ZEPLIN experiment to the two-neutrino and neutrinoless double $$\beta$$ decays of $$^{134}$$Xe

Journal Article · · Physical Review C
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  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States); LUX-ZEPLIN (LZ) Collaboration. et al.

The projected sensitivity of the LUX-ZEPLIN (LZ) experiment to two-neutrino and neutrinoless double beta decay of 134Xe is presented. LZ is a 10-tonne xenon time projection chamber optimized for the detection of dark matter particles, that is expected to start operating in 2021 at Sanford Underground Research Facility, USA. Its large mass of natural xenon provides an exceptional opportunity to search for the double beta decay of 134Xe, for which xenon detectors enriched in 136Xe are less effective. For the two-neutrino decay mode, LZ is predicted to exclude values of the half-life up to 1.7 x 1024 years at 90% confidence level (CL), and has a three-sigma observation potential of 8.7 x 1023 years, approaching the predictions of nuclear models. For the neutrinoless decay mode LZ, is projected to exclude values of the half-life up to 7.3 x 1024 years at 90% CL.

Research Organization:
SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Alabama, Tuscaloosa, AL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of Michigan, Ann Arbor, MI (United States); Univ. of Maryland, College Park, MD (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE National Nuclear Security Administration (NNSA)
Contributing Organization:
LUX-ZEPLIN (LZ) Collaboration; The LUX-ZEPLIN Collaboration; The LUX-ZEPLIN (LZ) Collaboration
Grant/Contract Number:
AC02-76SF00515; AC02-05CH11231; SC0020216; SC0012704; SC0010010; AC02-07CH11359; SC0012161; SC0014223; SC0010813; SC0009999; NA0003180; SC0011702; DESC0010072; SC0015708; SC0006605; SC0008475; FG02-10ER46709; UW PRJ82AJ; SC0013542; SC0018982; SC0019066; SC0015535; SC0019193; AC52-07NA27344; DOE-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; PTDC/FIS-PAR/28567/2017; IBS-R016-D1; SC005336; SC0010072
OSTI ID:
1835842
Alternate ID(s):
OSTI ID: 1827337; OSTI ID: 1831903; OSTI ID: 1845302; OSTI ID: 1862930; OSTI ID: 1869404; OSTI ID: 1883035; OSTI ID: 1903422
Report Number(s):
FERMILAB-PUB-21-549-AE; arXiv:2104.13374; LLNL-JRNL-837670; 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; PTDC/FIS-PAR/28567/2017; IBS-R016-D1; SC005336; TRN: US2300265
Journal Information:
Physical Review C, Vol. 104, Issue 6; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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