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.
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ArXiv ePrint: 1202.4759
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D’Agnolo, R.T., Straub, D.M. Gauged flavour symmetry for the light generations. J. High Energ. Phys. 2012, 34 (2012). https://doi.org/10.1007/JHEP05(2012)034
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DOI: https://doi.org/10.1007/JHEP05(2012)034