Neutrino Masses from the Point of View of Economy and Simplicity

In the framework of such basic principles as local gauge invariance, unification of the weak and electromagnetic interactions and spontaneous symmetry breaking in the Standard Model the most economical and simplest possibilities are realized. We discuss the problem of neutrino masses from the point...

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Bibliographic Details
Published in:Physics of particles and nuclei 2019-11, Vol.50 (6), p.645-662
Main Author: Bilenky, S.
Format: Article
Language:English
Subjects:
ELECTROMAGNETIC INTERACTIONS
GAUGE INVARIANCE
LAGRANGIAN FUNCTION
MAJORANA FERMIONS
Particle and Nuclear Physics
Physics
Physics and Astronomy
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
STANDARD MODEL
STERILE NEUTRINOS
SYMMETRY BREAKING
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Summary:In the framework of such basic principles as local gauge invariance, unification of the weak and electromagnetic interactions and spontaneous symmetry breaking in the Standard Model the most economical and simplest possibilities are realized. We discuss the problem of neutrino masses from the point of view of economy and simplicity. It is unlikely that neutrino masses are of the same SM origin as masses of leptons and quarks. The Weinberg effective Lagrangian is the simplest and the most economical, beyond the Standard Model mechanism of the generation of small Majorana neutrino masses. The resolution of the sterile neutrino anomaly and observation of the neutrinoless double β-decay would be crucial tests of this mechanism.
ISSN:1063-7796
1531-8559
DOI:10.1134/S1063779620010025