Gauged flavour symmetry for the light generations

Details Gauged flavour symmetry for the light generations Gauged flavour symmetry for the light generations

2012-02-21

arxiv.org/abs/1202.4759v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 3 figures

Scientific paper

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.

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