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

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• Renormalization Group Running of Fermion Observables in an Extended Non-Supersymmetric SO(10) Model
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• A Predictive and Testable Unified Theory of Fermion Masses, Mixing and Leptogenesis
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• Proton Decay and Flavor Violating Thresholds in SO(10) Models
• Pinning down the New Minimal Supersymmetric GUT
• A complete survey of texture zeros in general and symmetric quark mass matrices
• Flavour physics without flavour symmetries
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• Order and Anarchy hand in hand in 5D SO(10)
• Surveying the SO(10) Model Landscape: The Left-Right Symmetric Case
• Determining Heavy Mass Parameters in Supersymmetric SO(10) Models
• Flavour symmetries in a renormalizable SO(10) model
• Minimal spontaneous CP-violating GUT and predictions for leptonic CP phases
• A Built-in Horizontal Symmetry of $SO(10)$
• Correcting α_3(M_Z) in the NMSGUT
• Compressed and Split Spectra in Minimal SUSY SO(10)
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• Flavor Physics in SO(10) GUTs with Suppressed Proton decay Due to Gauged Discrete Symmetry
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• A renormalizable supersymmetric SO(10) model with natural doublet-triplet splitting
• Perturbative SO(10) GUT and the Minimal Higgs Sector
• Significance of broken $\mu -\tau$ Symmetry in correlating ${\delta }_{CP}$, ${\theta }_{13}$, Lightest neutrino Mass and neutrinoless double beta decay $0\nu \beta \beta$
• Fermion Masses from SO(10) Hermitian Matrices
• Asymptotic grand unification in SO(10) with one extra dimension
• Fermion masses and mixing in SO(10) GUT with a universal two-zero texture
• Probing quark-lepton correlation in GUTs with high-precision neutrino measurements