Flavour from accidental symmetries
High Energy Physics - Phenomenology
2009-11-11 v2
Abstract
We consider a new approach to fermion masses and mixings in which no special "horizontal" dynamics is invoked to account for the hierarchical pattern of charged fermion masses and for the peculiar features of neutrino masses. The hierarchy follows from the vertical, family-independent structure of the model, in particular from the breaking pattern of the Pati-Salam group. The lightness of the first two fermion families can be related to two family symmetries emerging in this context as accidental symmetries.
Cite
@article{arxiv.hep-ph/0609047,
title = {Flavour from accidental symmetries},
author = {Luca Ferretti and Stephen F. King and Andrea Romanino},
journal= {arXiv preprint arXiv:hep-ph/0609047},
year = {2009}
}
Comments
15 pages, 1 eps figure, references added