New Approach for the Construction of Fermion Mass Matrices in SO(10) SUSY GUTS

Abstract

A new procedure is developed which enables one to start from the quark and lepton mass and mixing data at the low scale and construct mass matrices which exhibit simple SO(10) structure at the SUSY GUT scale. This approach is applied to the present data involving quark and charged lepton masses, the CKM mixing matrix and the MSW solar neutrino and atmospheric neutrino depletion effects. In terms of just 12 model parameters suggested by the procedure for the 5 mass matrices, we can reproduce 15 masses and 8 mixing parameters remarkably consistent with the input starting values.

12 pages, LATEX, FERMILAB-PUB-93/316-T and OSU Preprint 282

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• $SU(5)\times SU(5)$ Unification, Seesaw Mechanism and R-Conservation
• Neutrinos and Structure of the Intermediate Mass Scale
• Construction of an SO(10) x U(1)_F Model of the Yukawa Interactions
• Intermediate scale as a source of lepton flavor violation in SUSY SO(10)
• A Predictive SO(10) Scheme for Fermion Masses and Mixings
• An SO(10) model with adjoint fermions for double seesaw neutrino masses
• Hierarchy spectrum of SM fermions: from top quark to electron neutrino
• Construction of Fermion Mass Matrices Yielding Two Popular Neutrino Scenarios
• A bottom-up approach to fermion mass hierarchy: a case with vector-like fermions
• Texture of fermion mass matrices in partially unified theories
• On a mechanism realizing quark mass hierarchy