Gauged flavour symmetry for the light generations
High Energy Physics - Phenomenology
2015-06-04 v1
Abstract
We study the phenomenology of a model where an SU(2)^3 flavour symmetry acting on the first two generation quarks is gauged and Yukawa couplings for the light generations are generated by a see-saw mechanism involving heavy fermions needed to cancel flavour-gauge anomalies. We find that, in constrast to the SU(3)^3 case studied in the literature, most of the constraints related to the third generation, like electroweak precision bounds or B physics observables, can be evaded, while characteristic collider signatures are predicted.
Cite
@article{arxiv.1202.4759,
title = {Gauged flavour symmetry for the light generations},
author = {Raffaele Tito D'Agnolo and David M. Straub},
journal= {arXiv preprint arXiv:1202.4759},
year = {2015}
}
Comments
16 pages, 3 figures