Low-energy Variety of Asymmetric SUSY Flavor Structure

Details Low-energy Variety of Asymmetric SUSY Flavor Structure Low-energy Variety of Asymmetric SUSY Flavor Structure

2006-10-30

arxiv.org/abs/hep-ph/0610402v2

Phys.Lett.B644:172-178,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 4 figures, minor comments and references added

Scientific paper

10.1016/j.physletb.2006.11.041

In this letter we study the low-energy phenomenology and cosmological implications of supersymmetric grand unified theory with asymmetric flavor structure, which is suggested by the recent observation of fermion masses and mixing angles. The predictions of the scenario are rather dependent on a Yukawa parameter fixed by group-theoretical argument. A reduced value of the parameter gives a resolution to the sign problem of supersymmetric Higgs mass \mu, with which the theory becomes simultaneously consistent with the experimental data of bottom/tau mass ratio, flavor-changing rare decay of bottom quark, and the muon anomalous magnetic moment. The relic abundance of the lightest superparticle as cold dark matter of the universe is also investigated in light of the three-years WMAP result. A new source of flavor violation is found in the D-term induced scalar masses, that is a distinctive signature of the generation asymmetry.

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