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Title: New Limits on Bosonic Dark Matter, Solar Axions, Pauli Exclusion Principle Violation, and Electron Decay from the Majorana Demonstrator

Journal Article · · Physical Review Letters
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We present new limits on exotic keV-scale physics based on 478 kg d of Majorana Demonstrator commissioning data. Constraints at the 90% confidence level are derived on bosonic dark matter (DM) and solar axion couplings, Pauli exclusion principle violating (PEPV) decay, and electron decay using monoenergetic peak signal limits above our background. Our most stringent DM constraints are set for 11.8 keV mass particles, limiting gAe<4.5×10-13 for pseudoscalars and (α'/α)<9.7×10-28 for vectors. We also report a 14.4 keV solar axion coupling limit of geffAN×gAe<3.8×10-17, a 12β2<8.5×10-48 limit on the strength of PEPV electron transitions, and a lower limit on the electron lifetime of τe>1.2×1024 yr for e-→ invisible.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
Majorana Collaboration
Grant/Contract Number:
AC52-06NA25396; AC02-05CH11231; FG02-97ER41041; FG02-97ER41033; FG02-97ER41042; SC0012612; FG02-10ER41715; SC0010254; FG02-97ER41020; AC05-00OR22725; PHY-0919270; PHY- 1003940; 0855314; HY-1202950; MRI 0923142; 1003399
OSTI ID:
1374346
Alternate ID(s):
OSTI ID: 1352720; OSTI ID: 1460294; OSTI ID: 1482452
Report Number(s):
LA-UR-16-29205; PRLTAO; TRN: US1702785
Journal Information:
Physical Review Letters, Vol. 118, Issue 16; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 56 works
Citation information provided by
Web of Science

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Cited By (9)

Lightish but clumpy: scalar dark matter from inflationary fluctuations journal October 2018
Search for bosonic super-WIMP interactions with the XENON100 experiment journal December 2017
Neutrinoless double beta decay overview journal January 2019
Cosmogenic activation of materials conference January 2005
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Cosmogenic activation of materials
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conference January 2013
First Searches for Axions and Axion-Like Particles with the LUX Experiment text January 2017
Limits on Axion Couplings from the first 80-day data of PandaX-II Experiment text January 2017
Searches for electron interactions induced by new physics in the EDELWEISS-III germanium bolometers text January 2018

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