Supersymmetric Left-Right models with Gauge Coupling Unification and Fermion Mass Universality

Abstract

We explore the unification of gauge couplings and fermion masses in two different types of supersymmetric left-right models, one with Higgs triplets and the other with both Higgs triplets as well as bitriplets. The minimal versions of these models do not give rise to the desired unification and some extra fields have to be added. After such a modification, it is possible in one model to get gauged $B-L$ symmetry to be unbroken down to TeV scale. We also identify the parameter space at the electroweak scale which gives rise to fermion mass unification at a high scale $M_G$. Type I seesaw emerges as the natural explanation of the small neutrino masses in both the models.

21 pages, 6 figures, Journal Version

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• Spontaneous R-parity breaking, Left-Right Symmetry and Consistent Cosmology with Transitory Domain Walls
• Effects of Planck Scale Physics on Neutrino Mixing Parameters in Left-Right Symmetric Models
• Spontaneous Parity Breaking, Gauge Coupling Unification and Consistent Cosmology with Transitory Domain Walls
• Spontaneous parity breaking and supersymmetry breaking in metastable vacua with consistent cosmology
• Why PeV scale left-right symmetry is a good thing