Constraints from the Muon g-2 on the Parameter Space of the NMSSM

TL;DR

This paper extends the calculation of supersymmetric contributions to the muon g-2 in the NMSSM, highlighting the impact of a light CP-odd Higgs and exploring parameter space constraints from B physics and SUSY breaking scales.

Contribution

It provides a generalized computation of (g-2)_mu in the NMSSM, including effects of a light CP-odd Higgs, and analyzes parameter space constraints from B physics and SUSY models.

Findings

Light CP-odd Higgs significantly affects (g-2)_mu contributions.

Constraints favor low SUSY breaking scales in cNMSSM.

Parameter space compatible with B physics constraints identified.

Abstract

We generalize the computation of supersymmetric contributions to the muon anomalous magnetic moment (g-2)_mu to the NMSSM. In the presence of a light CP-odd Higgs scalar, these can differ considerably from the MSSM. We discuss the amount of these contributions in regions of the parameter space of the general NMSSM compatible with constraints from B physics. In the mSUGRA-like cNMSSM, constraints from (g-2)_mu prefer regions in parameter space corresponding to a low SUSY breaking scale.