6533b839fe1ef96bd12a660e
RESEARCH PRODUCT
Sterile neutrinos and B–L symmetry
Clara MurguiPavel Fileviez Pérezsubject
High Energy Physics - TheoryNuclear and High Energy PhysicsSterile neutrinoParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Astrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesContext (language use)Computer Science::Digital Libraries01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)0103 physical sciences010306 general physicsNeutrino oscillationGauge symmetryPhysics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyLepton numberlcsh:QC1-999High Energy Physics - PhenomenologyMAJORANAHigh Energy Physics - Theory (hep-th)Measurements of neutrino speedHigh Energy Physics::ExperimentNeutrinolcsh:PhysicsAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
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 mu to e and mu to e gamma are discussed in detail. The impact from the cosmological constraints on the effective number of relativistic degree of freedom is investigated.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-08-07 | Physics Letters B |