منابع مشابه
Minimal flavor violation in supersymmetric theories
The aim of the MFV hypothesis is to reconcile two contradictory facts. On one hand, tremendous advances from flavor factories have confirmed the Standard Model (SM) flavor structures to an impressive precision, in both the quark sector through K and B physics observables, and in the lepton sector where tight bounds on flavor transitions have been obtained. On the other hand, most New Physics (N...
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We study a finite SU(5) grand unified model based on the non-Abelian discrete symmetry A4. This model leads to the democratic structure of the mass matrices for the quarks and leptons. In the soft supersymmetry breaking sector, the scalar trilinear couplings are aligned and the soft scalar masses are degenerate, thus solving the SUSY flavor problem. 12.60.Jv,11.30.Hv,12.10.-g,12.10.Kt,11.10.Hi ...
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We analyze the possibility of probing the supersymmetric flavor structure through the constraints of the K and B meson systems and those of the electric dipole moments. We show that combining these constraints would favor SUSY models with large flavor mixing either in LR(RL) or LL but with a very small RR and intermediate/large tan β. Large LR mixing requires specific patterns for trilinear A-t...
متن کاملSolving Flavor Puzzles with Quiver Gauge Theories
We consider a large class of models where the SU(5) gauge symmetry and a Froggatt-Nielsen (FN) Abelian flavor symmetry arise from a U(5)×U(5) quiver gauge theory. An intriguing feature of these models is a relation between the gauge representation and the horizontal charge, leading to a restricted set of possible FN charges. Requiring that quark masses are hierarchical, the lepton flavor struct...
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We consider a large class of models where an SU(5) gauge symmetry and a FroggattNielsen (FN) Abelian flavor symmetry arise from a quiver gauge theory. Such quiver models are very restrictive and therefore have strong predictive power. In particular, under mild assumptions neutrino mass anarchy is predicted.
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1997
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(96)00557-9