Projected sensitivity of the LUX-ZEPLIN experiment to the two-neutrino and neutrinoless double
β
decays of
Xe134
β
decays of
Xe134
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
The projected sensitivity of the LUX-ZEPLIN (LZ) experiment to two-neutrino and neutrinoless double
β
decay of
134
Xe
is presented. LZ is a 10-tonne xenon time-projection chamber optimized for the detection of dark matter particles and 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
β
decay of
134
Xe
, for which xenon detectors enriched in
136
Xe
are less effective. For the two-neutrino decay mode, LZ is predicted to exclude values of the half-life up to
1.7
×
10
24
years at 90% confidence level (CL) and has a three-sigma observation potential of
8.7
×
10
23
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
×
10
24
years at 90% CL.
β
decay of
134
Xe
is presented. LZ is a 10-tonne xenon time-projection chamber optimized for the detection of dark matter particles and 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
β
decay of
134
Xe
, for which xenon detectors enriched in
136
Xe
are less effective. For the two-neutrino decay mode, LZ is predicted to exclude values of the half-life up to
1.7
×
10
24
years at 90% confidence level (CL) and has a three-sigma observation potential of
8.7
×
10
23
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
×
10
24
years at 90% CL.
Date Issued
2021-11-19
Date Acceptance
2021-11-19
Citation
Physical Review C, 2021, 104 (6), pp.1-11
ISSN
2469-9985
Publisher
American Physical Society (APS)
Start Page
1
End Page
11
Journal / Book Title
Physical Review C
Volume
104
Issue
6
Copyright Statement
©2021 American Physical Society
Identifier
https://journals.aps.org/prc/abstract/10.1103/PhysRevC.104.065501
Subjects
physics.ins-det
physics.ins-det
nucl-ex
Publication Status
Published
Article Number
065501
Date Publish Online
2021-12-10