Muon g-2 and Dark Matter in the NUGM + NUHM2 model

TL;DR

This paper investigates the NUGM + NUHM2 supersymmetric model, examining its parameter space in light of recent muon g-2 measurements, dark matter properties, and Higgs boson phenomenology, identifying regions that satisfy experimental constraints.

Contribution

It provides a comprehensive analysis of the NUGM + NUHM2 model's parameter space, linking muon g-2, dark matter, and Higgs physics with new insights into viable regions.

Findings

Identifies parameter regions consistent with muon g-2 deviation.

Highlights a narrow region with a light stau affecting Higgs decay.

Shows certain parameter choices enhance Higgs production and decay widths.

Abstract

We analyze the NUGM + NUHM2 model and study the implications of recent experimental constraints on the parameter space of this model. We also explore the nature of dark matter in this model and present the parameter space characterized by various compositions of the neutralino. The region of the parameter space that satisfies the observed deviation in the anomalous magnetic moment of the muon is explored more rigorously. We also present results corresponding to the production cross section and decay widths of a light CP-even Higgs boson and observe that there is a narrow region of the parameter space corresponding to a light stau which explains the observed deviation in the muon g-2 and also leads to enhancement in the Higgs production and decay widths.