Enhanced Higgs Mass in a Gaugino Mediation Model without the Polonyi Problem

TL;DR

This paper proposes a gaugino mediation SUSY breaking model without the Polonyi problem, achieving a 125 GeV Higgs mass with gluino masses accessible at the LHC, by introducing extra matter fields that enhance the trilinear coupling.

Contribution

It introduces a Polonyi problem-free SUSY breaking scenario with enhanced Higgs mass via extra matter fields, making the model testable at the LHC.

Findings

Higgs mass consistent with 125 GeV for gluino mass 1-2 TeV

Extra matter fields enhance the scalar top trilinear coupling

Dark matter candidate is the gravitino with other SUSY particles within LHC reach

Abstract

We consider a SUSY breaking scenario without the Polonyi problem. To solve the problem, the enhanced couplings of the Polonyi field to an inflaton, gauge kinetic functions and itself are assumed. As a result, a gaugino mediated SUSY breaking occurs. In this scenario, the Higgs boson mass becomes consistent with the recently observed value of the Higgs-like boson (i.e., m_h ~= 125 GeV) for the gluino mass about 4TeV, which is, however, out of the reach of the LHC experiment. We show that the trilinear coupling of the scalar top is automatically enhanced by the presence of the extra matters. With such extra matters, the Higgs mass as large as 125 GeV can be realized with the gluino mass of 1-2 TeV which is within the reach of the LHC experiment. In our scenario, the gravitino is the lightest SUSY particle and the candidate for dark matter, and the Wino, Bino, and sleptons are in a range from 200 GeV to 700 GeV.