Relatively Heavy Higgs Boson in More Generic Gauge Mediation

TL;DR

This paper explores a gauge mediation model with Higgs-messenger mixing that naturally enhances the Higgs boson mass to around 125GeV, predicts heavier stops, and results in a distinctive slepton spectrum, all without flavor issues.

Contribution

It introduces a novel gauge mediation framework with Higgs-messenger mixing that achieves a heavy Higgs and distinctive superpartner spectra without flavor problems.

Findings

Higgs boson mass can reach 125GeV with light gluinos around 2TeV.

Large A-terms are generated at the messenger scale due to mixing.

The model predicts a unique slepton mass spectrum.

Abstract

We discuss gauge mediation models where the doublet messengers and Higgs doublets are allowed to mix through a "charged" coupling. The charged coupling replaces messenger parity as a means of suppressing flavor changing neutral currents without introducing any unwanted CP violation. As a result of this mixing between the Higgs doublets and the messengers, relatively large A-terms are generated at the messenger scale. These large A-terms produce a distinct weak scale mass spectrum. Particularly, we show that the lightest Higgs boson mass is enhanced and can be as heavy as 125GeV for a gluino mass as light as 2TeV. We also show that the stops are heavier than that predicted by conventional gauge mediation models. It is also shown that these models have a peculiar slepton mass spectrum.