Electroweak Symmetry Breaking and Proton Decay in SO(10) SUSY-GUT with TeV W_R

TL;DR

This paper explores supersymmetric SO(10) models with TeV-scale W_R bosons, analyzing fermion mass fits, proton decay predictions, and symmetry breaking mechanisms relevant for collider and proton lifetime experiments.

Contribution

It introduces an alternative Yukawa pattern in SO(10) SUSY-GUT models and studies their implications for proton decay and symmetry breaking.

Findings

Good fermion mass fits with new Yukawa pattern

Proton lifetime constraints imply squark masses > 1.2 TeV

Mechanisms for simultaneous symmetry breaking via radiative corrections

Abstract

In a recent paper, we proposed a new class of supersymmetric SO(10) models for neutrino masses where the TeV scale electroweak symmetry is SU(2)_L\times SU(2)_R\times U(1)_{B-L} making the associated gauge bosons W_R and Z' accessible at the Large Hadron Collider. We showed that there exists a domain of Yukawa coupling parameters and symmetry breaking patterns which give an excellent fit to all fermion masses including neutrinos. In this sequel, we discuss an alternative Yukawa pattern which also gives good fermion mass fit and then study the predictions of both models for proton lifetime. Consistency with current experimental lower limits on proton life time require the squark masses of first two generations to be larger than ~ 1.2 TeV. We also discuss how one can have simultaneous breaking of both SU(2)_R\times U(1)_{B-L} and standard electroweak symmetries via radiative corrections.