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

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

2010-10-29

arxiv.org/abs/1010.6289v2

Phys.Rev.D83:095004,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 6 figures, Journal Version

Scientific paper

10.1103/PhysRevD.83.095004

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.

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