Natural Realizations of Seesaw in Mini-Warped Minimal SO(10)

Abstract

The minimal SUSY SO(10) GUT models with {\bf 10}, {\bf 126} and {\bf 210} Higgs and only renormalizable couplings has been shown to provide a simple way to understand the neutrino mixings as well as the ratio $\Delta m_{\odot }^2/\Delta m_A^2$ in terms of quark mixing parameter ${\theta }_{Cabibbo}$, provided neutrino masses are described by type II seesaw formula. However, in this minimal picture, it is impossible to realize type II dominance with renormalizable couplings in 4-dimensions. We show that this problem can be cured by embedding this model into a warped 5-dimensional space time with warping between the Planck and the GUT scale, where both type II as well as mixed seesaw formulae can be realized in a natural manner without expanding the Higgs sector. These models also avoid the possible problem of threshold effects associated with large Higgs representations since the theory above the GUT scale is now strongly coupled.

20 pages and one figure

References in corpus (4)

• Fermion masses and mixings in SO(10) models and the neutrino challenge to supersymmetric grand unified theories
• Fermion masses and mixings in a renormalizable SO(10) x Z_2 GUT
• Higgs Masses in the Minimal SUSY SO(10) GUT
• Solving problems of 4D minimal SO(10) model in a warped extra dimension

Cited by in corpus (8)

• Intermediate left-right gauge symmetry, unification of couplings and fermion masses in SUSY $SO(10)\times S_4$
• Inverse see-saw, leptogenesis, observable proton decay and ${\Delta }_{\mathrm{R}}^{\pm \pm }$ in SUSY SO(10) with heavy W_R
• Light Neutrinos from a Mini-Seesaw Mechanism in Warped Space
• Little Randall-Sundrum Model and a Multiply Warped Spacetime
• A simple SO(10) GUT in five dimensions
• Realistic Hybrid Inflation in 5D Orbifold SO(10) GUT
• A simple 5D SO(10) GUT and sparticle masses
• A realistic pattern of fermion masses from a five-dimensional SO(10) model