Low-Energy Signals for a Minimal Gauge-Mediated Model

The inclusive branching ratio $B\to X_s\gamma$ and the anomalous magnetic moment $g_{\mu }-2\mathrm{}$ of the muon are accurately calculated within a minimal gauge-mediated supersymmetry-breaking model which naturally generates a large $\tan \beta$. The predictions are strongly correlated, and in somewhat better agreement with current experiments; new data will soon critically test these predictions. Predictions for $B\to X_s{\ell }^{+}{\ell }^{-}$ branching ratios and asymmetries, to be tested at future colliders, are also presented.