A renormalizable SO(10) GUT scenario with spontaneous CP violation

Abstract

We consider fermion masses and mixings in a renormalizable SUSY SO(10) GUT with Yukawa couplings of scalar fields in the representation 10 + 120 + 126 bar. We investigate a scenario defined by the following assumptions: i) A single large scale in the theory, the GUT scale. ii) Small neutrino masses generated by the type I seesaw mechanism with negligible type II contributions. iii) A suitable form of spontaneous CP breaking which induces hermitian mass matrices for all fermion mass terms of the Dirac type. Our assumptions define an 18-parameter scenario for the fermion mass matrices for 18 experimentally known observables. Performing a numerical analysis, we find excellent fits to all observables in the case of both the normal and inverted neutrino mass spectrum.

16 pages, two eps figures

References in corpus (1)

• Higgs Masses in the Minimal SUSY SO(10) GUT

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• Proton Decay and Flavor Violating Thresholds in SO(10) Models
• Determining Heavy Mass Parameters in Supersymmetric SO(10) Models
• Correcting α_3(M_Z) in the NMSGUT
• Flavor Physics in SO(10) GUTs with Suppressed Proton decay Due to Gauged Discrete Symmetry
• Perturbative SO(10) GUT and the Minimal Higgs Sector
• Fermion Masses from SO(10) Hermitian Matrices