Neutrino masses beyond the minimal seesaw
High Energy Physics - Phenomenology
2020-05-20 v1
Abstract
The simplest possibility to generate small Majorana neutrino masses is the seesaw mechanism. However, the smallness of the observed neutrino masses can also be understood, if neutrino masses are generated by higher-dimensional operators and/or at higher loop level. In this talk recent work on systematic classifications of higher-dimensional and radiative neutrino mass models is summarized. Two particular classes of special genuine loop diagrams, i.e. diagrams which can lead to genuine neutrino mass models only under some specific, well-defined conditions, are also discussed.
Keywords
Cite
@article{arxiv.1911.01125,
title = {Neutrino masses beyond the minimal seesaw},
author = {Ricardo Cepedello and Renato Fonseca and Martin Hirsch},
journal= {arXiv preprint arXiv:1911.01125},
year = {2020}
}
Comments
Contribution to the Proceedings of TAUP-2019; Toyama, Japan