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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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Here, 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. We set our most stringent DM constraints for 11.8 keV mass particles, limiting g A e < 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 g$$eff\atop{AN}$$ × g A e < 3.8 × 10-17 , a 1/2 β 2 < 8.5 × 10 - 48 limit on the strength of PEPV electron transitions, and a lower limit on the electron lifetime of τ e > 1.2 × 1 0 24 yr for e - → invisible.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Organization:
Majorana Collaboration
Grant/Contract Number:
AC02-05CH11231; AC05-00OR22725; AC52-06NA25396; FG02-97ER41020; FG02-97ER41033; FG02-97ER41041; FG02-97ER41042; SC0010254; SC0012612
OSTI ID:
1374346
Report Number(s):
LA-UR--16-29205
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 118; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (19)

Neutrino lines from majoron dark matter journal May 2017
Cosmogenic activation of materials conference January 2005
Cosmogenic activation of materials
  • Cebrián, S.
  • LOW RADIOACTIVITY TECHNIQUES 2013 (LRT 2013): Proceedings of the IV International Workshop in Low Radioactivity Techniques, AIP Conference Proceedings https://doi.org/10.1063/1.4818094
conference January 2013
Lightish but clumpy: scalar dark matter from inflationary fluctuations journal October 2018
Search for neutrinoless double- β decay in Ge 76 with 26 kg yr of exposure from the Majorana Demonstrator journal August 2019
Direct detection of sub-GeV dark matter with scintillating targets journal July 2017
Search for bosonic super-WIMP interactions with the XENON100 experiment journal December 2017
Searches for electron interactions induced by new physics in the EDELWEISS-III germanium bolometers journal October 2018
First Searches for Axions and Axionlike Particles with the LUX Experiment journal June 2017
Single-Electron and Single-Photon Sensitivity with a Silicon Skipper CCD journal September 2017
Limits on Axion Couplings from the First 80 Days of Data of the PandaX-II Experiment journal November 2017
Search for Neutrinoless Double- β Decay in Ge 76 with the Majorana Demonstrator journal March 2018
Limits on Light Weakly Interacting Massive Particles from the First 102.8   kg × day Data of the CDEX-10 Experiment journal June 2018
Cosmogenic activation of materials journal October 2017
Neutrinoless double beta decay overview journal January 2019
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
Search for bosonic super-WIMP interactions with the XENON100 experiment text January 2017

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