Sterile neutrinos and symmetry
Journal Article
·
· Physics Letters. B
- Case Western Reserve Univ., Cleveland, OH (United States)
- Universitat de Valencia-CSIC, Valencia (Spain)
We revisit the relation between the neutrino masses and the spontaneous breaking of the B-L gauge symmetry. We discuss the main scenarios for Dirac and Majorana neutrinos and point out two simple mechanisms for neutrino masses. In this context the neutrino masses can be generated either at tree level or at quantum level and one predicts the existence of very light sterile neutrinos with masses below the eV scale. The predictions for lepton number violating processes such as μ → e and μ → eγ are discussed in detail. The impact from the cosmological constraints on the effective number of relativistic degree of freedom is investigated.
- Research Organization:
- Case Western Reserve Univ., Cleveland, OH (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- SC0018005
- OSTI ID:
- 1437804
- Alternate ID(s):
- OSTI ID: 1499100
- Journal Information:
- Physics Letters. B, Vol. 777, Issue C; ISSN 0370-2693
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 5 works
Citation information provided by
Web of Science
Web of Science
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