Sterile neutrinos and B – L symmetry

Fileviez Pérez, Pavel; Murgui, Clara

doi:10.1016/j.physletb.2017.12.041

Title: Sterile neutrinos and $B - L$ symmetry

Abstract

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.

Authors:

; Murgui, Clara

Publication Date:: 2018-02-01

Research Org.:: Case Western Reserve Univ., Cleveland, OH (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1437804

Alternate Identifier(s):: OSTI ID: 1499100

Grant/Contract Number:: SC0018005

Resource Type:: Published Article

Journal Name:: Physics Letters B

Additional Journal Information:: Journal Name: Physics Letters B Journal Volume: 777 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats


                    Fileviez Pérez, Pavel, and Murgui, Clara. Sterile neutrinos and B – L symmetry.  Netherlands: N. p., 2018. 
Web.  doi:10.1016/j.physletb.2017.12.041.

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                    Fileviez Pérez, Pavel, & Murgui, Clara. Sterile neutrinos and B – L symmetry.  Netherlands.  https://doi.org/10.1016/j.physletb.2017.12.041

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                    Fileviez Pérez, Pavel, and Murgui, Clara. Thu .  
"Sterile neutrinos and B – L symmetry".  Netherlands.  https://doi.org/10.1016/j.physletb.2017.12.041.

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@article{osti_1437804,

  title        = {Sterile neutrinos and B – L symmetry},

  author       = {Fileviez Pérez, Pavel and Murgui, Clara},

  abstractNote = {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.},

  doi          = {10.1016/j.physletb.2017.12.041},

  journal      = {Physics Letters B},

  number       = C,

  volume       = 777,

  place        = {Netherlands},

  year         = {2018},

  month        = {2}

}

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Fig. 1. : B–L Radiative Seesaw Mechanism in the unbroken phase.

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Title: Sterile neutrinos and B – L symmetry

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Title: Sterile neutrinos and $B - L$ symmetry