Yukawa unification in SUSY SO(10) in light of the LHC Higgs data

TL;DR

This paper reviews the status of Yukawa coupling unification in SUSY SO(10) models considering the Higgs mass around 125 GeV, analyzing implications for SUSY particle masses and LHC detectability.

Contribution

It re-analyzes a specific SUSY SO(10) model with non-universal gaugino masses in light of the 125 GeV Higgs, highlighting new mass limits and potential LHC signals.

Findings

Strong lower mass limits on SUSY particles from Higgs mass constraints.

Certain SUSY particles, like gluinos and sbottoms, could be within LHC reach.

Model with negative 0; implications for SUSY searches.

Abstract

The status of top-bottom-tau Yukawa coupling unification in supersymmetric SO(10) models is reviewed with a particular emphasis on the implications of the Higgs boson mass in the vicinity of 125 GeV, as suggested by the LHC Higgs data. In addition, the recently proposed model with negative \mu, D-term splitting of the soft scalar masses and non-universal gaugino masses generated by a non-zero F-term in a 24-dimensional representation of SU(5) \subset SO(10) is re-analysed in the context of the 125 GeV Higgs. The condition of top-bottom-tau Yukawa unification together with the Higgs mass of about 125 GeV impose strong lower mass limits on SUSY particles. Nevertheless, some of the MSSM particles may be within the reach of the LHC. In the case of models with positive \mu this is the gluino. While in the case of negative \mu these are the pseudoscalar Higgs, the lighter sbottom (sometimes strongly degenerate with the LSP leading to sbottom coannihilations), the right-handed down squark and the gluino.