A4 family symmetry and quark-lepton unification

Details A4 family symmetry and quark-lepton unification A4 family symmetry and quark-lepton unification

2006-10-19

arxiv.org/abs/hep-ph/0610250v2

Phys.Lett.B645:351-357,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

References & typos corrected

Scientific paper

10.1016/j.physletb.2006.12.006

We present a model of quark and lepton masses and mixings based on A4 family symmetry, a discrete subgroup of an SO(3) flavour symmetry, together with Pati-Salam unification. It accommodates tri-bimaximal neutrino mixing via constrained sequential dominance with a particularly simple vacuum alignment mechanism emerging through the effective D-term contributions to the scalar potential.

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