A Complete Model of Low-Scale Gauge Mediation

Understand

Recent signs of a Standard Model-like Higgs at 125 GeV point towards large A-terms in the MSSM.

• This presents special challenges for gauge mediation, which by itself predicts vanishing A-terms at the messenger scale.
• In this paper, we review the general problems that arise when extending gauge mediation to achieve large A-terms, and the mechanisms that exist to overcome them.
• Using these mechanisms, we construct weakly-coupled models of low-scale gauge mediation with extended Higgs-messenger couplings that generate large A-terms at the messenger scale and viable mu/B_mu-terms.