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Title: Gravitational interactions and neutrino masses

Journal Article · · Physical Review D
 [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)

We describe a scenario where the smallness of neutrino masses is related to a global symmetry that is only violated by quantum gravitational effects. The coupling of neutrinos to gauge singlet right-handed fermions is attributed to symmetry preserving gravitational operators suppressed by the Planck mass, in this framework. The proposed scenario leads to axion particles that decay into neutrinos, which could be probed through cosmological measurements and may help explain the Hubble parameter tension. Depending on the details of the implementation, the scenario could provide axion dark matter candidates.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0012704
OSTI ID:
1634133
Alternate ID(s):
OSTI ID: 1631008
Report Number(s):
BNL-215955-2020-JAAM; PRVDAQ; TRN: US2200722
Journal Information:
Physical Review D, Vol. 101, Issue 11; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (3)