Minimal Gaugomaly Mediation

TL;DR

This paper introduces a minimal gaugomaly mediation model where messenger masses are generated by anomaly mediation, leading to realistic supersymmetric spectra and viable dark matter candidates with a simple parameter setup.

Contribution

It presents a minimal gaugomaly mediation framework with anomaly-generated messenger masses and a relaxation mechanism for mu and B mu terms, simplifying the parameter space.

Findings

Realistic SUSY spectra achieved with minimal parameters.

Viable dark matter candidates identified within the model.

Messenger scale naturally around 50 TeV.

Abstract

Mixed anomaly and gauge mediation ("gaugomaly'' mediation) gives a natural solution to the SUSY flavor problem with a conventional LSP dark matter candidate. We present a minimal version of gaugomaly mediation where the messenger masses arise directly from anomaly mediation, automatically generating a messenger scale of order 50 TeV. We also describe a simple relaxation mechanism that gives rise to realistic mu and B mu terms. B is naturally dominated by the anomaly-mediated contribution from top loops, so the mu/B mu sector only depends on a single new parameter. In the minimal version of this scenario the full SUSY spectrum is determined by two continuous parameters (the anomaly- and gauge-mediated SUSY breaking masses) and one discrete parameter (the number of messengers). We show that these simple models can give realistic spectra with viable dark matter.