Constraints from the muon anomalous magnetic moment and $b \to s \gamma$ on gauge-mediated supersymmetry-breaking models

TL;DR

This paper investigates how recent measurements of the muon g-2 and b to s gamma decay constrain gauge-mediated supersymmetry-breaking models, providing limits on model parameters and superpartner masses.

Contribution

It offers a combined analysis of muon g-2 and b to s gamma data to derive new bounds on gauge-mediated supersymmetry-breaking models.

Findings

Derived limits on model parameter space.

Established bounds on supersymmetric particle masses.

Provided constraints as a function of tan beta.

Abstract

We present a combined study of the muon anomalous magnetic moment, $a_{\mu} \equiv (g-2)_{\mu} /2$, and $b \to s \gamma$ decay in the minimal supersymmetric standard model with gauge-mediated supersymmetry-breaking. Combining new experimental data on $a_{\mu}$ and the branching ratio for $b \to s \gamma$, useful limits on the parameter space of these models are derived. Bounds on supersymmetric particle masses as a function of $\tan \beta$ are also presented.