Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-04-08
Phys.Rev. D70 (2004) 055003
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages, RevTex 4
Scientific paper
10.1103/PhysRevD.70.055003
We present an effective flavor model for the radiative generation of fermion masses and mixings based on a SU(5)xU(2) symmetry. We assume that the original source of flavor breaking resides in the supersymmetry breaking sector. Flavor violation is transmitted radiatively to the fermion Yukawa couplings at low energy through finite supersymmetric threshold corrections. This model can fit the fermion mass ratios and CKM matrix elements, explain the non-observation of proton decay, and overcome present constraints on flavor changing processes through an approximate radiative alignment between the Yukawa and the soft trilinear sector. The model predicts new relations between dimensionless fermion mass ratios in the three fermion sectors, and the quark mixing angles.
Ferrandis Javier
Haba Naoyuki
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