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Radiative Dirac neutrino mass, neutrinoless quadruple beta decay, and dark matter in B-L extension of the standard model.
Radiative Dirac neutrino mass, neutrinoless quadruple beta decay, and dark matter in B-L extension of the standard model.
- Source :
-
Physical Review D: Particles, Fields, Gravitation & Cosmology . 10/15/2019, Vol. 100 Issue 8, p1-1. 1p. - Publication Year :
- 2019
-
Abstract
- We propose that neutrino Dirac masses can be generated through a scotogenic scenario while violating the lepton number by four units by extending the standard model to have an anomaly free U(1)B-L, which is spontaneously broken to a residual Z4 symmetry. Z4 symmetry ensures the Dirac nature of neutrinos and simultaneously stabilizes dark matter. Although neutrinoless double beta decay is exactly absent, this model predicts a nonzero neutrinoless quadruple beta decay (0ν4β). It is shown that the 0ν4β can be enhanced thanks to the introduction of a new scalar field without affecting tiny neutrino masses and the relic density of dark matter. We perform numerical analysis for a 0ν4β, dark matter, and direct detection by imposing cosmological, collider, and theoretical constraints. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 24700010
- Volume :
- 100
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Physical Review D: Particles, Fields, Gravitation & Cosmology
- Publication Type :
- Periodical
- Accession number :
- 139594853
- Full Text :
- https://doi.org/10.1103/PhysRevD.100.075030