A SUSY A4 model for fermion masses and mixings

Details A SUSY A4 model for fermion masses and mixings A SUSY A4 model for fermion masses and mixings

2007-07-20

arxiv.org/abs/0707.3032v2

JHEP0803:063,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

version accepted in JHEP, Z3xZ2 changed in Z3xZ4, typos in table corrected, references added

Scientific paper

10.1088/1126-6708/2008/03/063

We study a supersymmetric extension of the Standard Model based on discrete A4xZ3xZ4 flavor symmetry. We obtain quark mixing angles as well as a realistic fermion mass spectrum and we predict tribimaximal leptonic mixing by a spontaneous breaking of A4. The top quark Yukawa interaction is present at the renormalizable level in the superpotential while all the other Yukawa interactions arise only at higher orders. We study the Higgs potential and show that it can potentially solve the so called vacuum alignment problem. The leading order predictions are not spoiled by subleading corrections.

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