Smirnov, A.Y. (2014) Theory of neutrino masses and mixing. Il nuovo cimento C, 37 (3). pp. 29-37. ISSN 1826-9885
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Abstract
In spite of the enormous experimental progress in the determination of the neutrino parameters, a theory of neutrino mass and mixing is still on the cross-roads. Guidelines could be (i) the connection between zero neutrino charges (and therefore a possibility to be Majorana particle), smallness of the neutrino mass and large lepton mixing, (ii) joint description of leptons and quarks, (iii) existence of the right handed (RH) neutrinos without special quantum numbers. Properties of the RH neutrinos and the UV completion of the seesaw may turn out to be the key to understand the neutrino mass and mixing. In view of the LHC results minimalistic scenarios like νMSM look rather plausible. Still the GUT’s with additional hidden sector, QLC, high scale flavor symmetries are appealing. Concerning mixing, the main issue is “symmetry or no symmetry” behind the observed pattern. The symmetry group condition is a useful tool to study the consequences of symmetries and to perform “symmetry building”. Sterile neutrinos are a challenge but also opportunity for the present theoretical constructions.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 19 May 2020 15:25 |
| Last Modified: | 19 May 2020 15:25 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18584 |
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