Minimal seesaw model with S_4 flavor symmetry
High Energy Physics - Phenomenology
2015-03-19 v2
Abstract
We discuss a neutrino mass model based on the S_4 flavor symmetry within the minimal seesaw framework, in which only two right-handed neutrinos are introduced and transform as 2 under S_4. Although the model contains less free parameters compared to the typical seesaw models, it provides a successful description of the observed neutrino parameters, and in particular, a nearly tri-bimaximal mixing pattern can be naturally accommodated. In addition, the heavy right-handed neutrino masses are found to be non-degenerate, while only the normal hierarchical mass spectrum is compatible with experiments for light neutrinos.
Keywords
Cite
@article{arxiv.1104.0380,
title = {Minimal seesaw model with S_4 flavor symmetry},
author = {Rui-Zhi Yang and He Zhang},
journal= {arXiv preprint arXiv:1104.0380},
year = {2015}
}
Comments
8 pages, 4 figures; version to appear in PLB