Please use this identifier to cite or link to this item:
http://hdl.handle.net/1843/56555
Type: | Artigo de Periódico |
Title: | Mu-tau reflection symmetry with a high scale texture-zero |
Authors: | Celso Chikahiro Nishi Bruce Lehmann Sánchez Vega Giovane de Souza Silva |
Abstract: | The μτ -reflection symmetric neutrino mass matrix can accommodate all known neutrino mixing angles, with maximal atmospheric angle fixed, and predicts all the unknown CP phases of the lepton sector but is unable to predict the absolute neutrino mass scale. Here we present a highly predictive scenario where μτ -reflection is combined with a discrete abelian symmetry to enforce a texture-zero in the mass matrix of the heavy right-handed neutrinos that generate the light neutrino masses. Such a restriction reduces the free parameters of the low energy theory to zero and the absolute neutrino mass scale is restricted to few discrete regions, three in the few meV range and one extending up to around 30 meV. The heavy neutrino sector is dependent only on two free parameters which are further restricted to small regions from the requirement of successful leptogenesis. Mass degenerate heavy neutrinos are possible in one case but there is no resonant enhancement of the CP asymmetry. |
Subject: | Neutrinos |
language: | eng |
metadata.dc.publisher.country: | Brasil |
Publisher: | Universidade Federal de Minas Gerais |
Publisher Initials: | UFMG |
metadata.dc.publisher.department: | ICX - DEPARTAMENTO DE FÍSICA |
Rights: | Acesso Aberto |
metadata.dc.identifier.doi: | https://doi.org/10.1007/JHEP09(2018)042 |
URI: | http://hdl.handle.net/1843/56555 |
Issue Date: | 2018 |
metadata.dc.url.externa: | https://link.springer.com/article/10.1007/JHEP09(2018)042 |
metadata.dc.relation.ispartof: | Journal of High Energy Physics |
Appears in Collections: | Artigo de Periódico |
Files in This Item:
File | Description | Size | Format | |
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Mu-tau reflection symmetry with a high scale texture zero.pdf | 786.45 kB | Adobe PDF | View/Open |
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