Non-Abelian Horizontal Symmetry and Anomalous U(1) Symmetry for the Supersymmetric Flavor Problem

Details Non-Abelian Horizontal Symmetry and Anomalous U(1) Symmetry for the Supersymmetric Flavor Problem Non-Abelian Horizontal Symmetry and Anomalous U(1) Symmetry for the Supersymmetric Flavor Problem

2002-12-10

arxiv.org/abs/hep-ph/0212141v3

Phys.Lett. B561 (2003) 273-278

Physics

High Energy Physics

High Energy Physics - Phenomenology

ReVTeX, 4 pages, Ver3:Proofread, Typos corrected, Refs. added

Scientific paper

10.1016/S0370-2693(03)00485-4

It is shown that using non-abelian horizontal gauge symmetry and anomalous U(1)_A symmetry in grand unified theories (GUTs), realistic quark and lepton mass matrices including large neutrino mixings can be obtained, while the differences among the scalar fermion masses are sufficiently small for suppression of various flavor changing neutral current (FCNC) processes, especially in E_6 GUT. Combining the Higgs sector, in which doublet-triplet splitting is realized, a complete E_6\times SU(3)_H GUT, in which three generations are unified into a single multiplet, Psi(27,3), is obtained.

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