Pushing the SUSY Higgs mass towards 125 GeV with a color adjoint

TL;DR

Introducing a color adjoint superfield at TeV scale in the MSSM modifies parameter running, making it easier to achieve a 125 GeV Higgs mass and allowing lighter stops and gluinos.

Contribution

The paper demonstrates that adding a TeV scale color adjoint superfield to the MSSM improves Higgs mass predictions and relaxes constraints on superpartner masses.

Findings

Achieves 125 GeV Higgs mass more comfortably than cMSSM/mSUGRA.

Allows lighter stop and gluino masses.

Modifies renormalization group running of parameters.

Abstract

We show that inclusion of a TeV scale chiral superfield transforming in the adjoint representation of the color SU(3) to the MSSM particle content modifies the renormalization group running of some parameters in such a way that a 125 GeV mass of the light Higgs boson is accommodated more comfortably than in cMSSM / mSUGRA. Put differently, the introduction of a color adjoint TeV scale superfield helps resurrecting lighter choices for the stop and gluino which are otherwise disfavored in cMSSM / mSUGRA.