Revisiting signature of minimal gauge mediation

Abstract

We revisit phenomenology of the minimal gauge-mediated model. This model is motivated from the SUSY CP and flavor problems. A specific feature of this model is that tan P is naturally large, since the B term in the Higgs potential is zero at the messenger scale. This leads to significant SUSY contributions to various low-energy observables. We evaluate the anomalous magnetic moment of the muon and the branching ratio of (B) over bar -> X-s gamma taking account of recent theoretical and experimental developments. We find that the current experimental data prefer a low messenger scale (similar to 100 TeV) and gluino mass around 1 TeV. We also calculate the branching ratios of (B) over bar -> X(s)l(+)l(-), B-s -> mu(+)mu(-), and B- -> tau(-) (nu) over bar, and show that these observables are strongly correlated with each other in this model. (C) 2007 Elsevier B.V. All rights reserved.