Doubly Lopsided Mass Matrices from Supersymmetric SU(N) Unification

Abstract

It is shown that in supersymmetric SU(N) models with N>5 the so-called doubly lopsided mass matrix structure can emerge in a natural way. The non-trivial flavor structure is entirely accounted for by the SU(N) gauge symmetry and supersymmetry, without any flavor symmetry. The hierarchy among the families results directly from a hierarchy of scales in the chain of breaking from SU(N)to the Standard Model group. A simple SU(7) example is presented.

16 pages, LaTex

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• Unification of gauge, family, and flavor symmetries illustrated in gauged SU(12) models
• Natural Doublet-Triplet Splitting in SU(N)X U(1)
• An Explicit SU(12) Family and Flavor Unification Model
• A Relation between theta-13 and the Leptonic Dirac CP Phase in SO(10) Lopsided Models
• Nearly right unitarity triangle and CP phase in quark and lepton flavor mixings