Muon g-2 in Focus Point SUSY

TL;DR

This paper demonstrates that the muon g-2 anomaly can be explained within focus point supersymmetry models, particularly those based on Higgs-gaugino mediation and variants of gravity mediation, with mild fine-tuning.

Contribution

It introduces two new focus point supersymmetry scenarios that successfully account for the muon g-2 anomaly, expanding the landscape of natural supersymmetric models.

Findings

Higgs-gaugino mediation focus point model explains muon g-2 with mild fine-tuning

Two novel focus point scenarios based on gravity mediation also explain muon g-2

Models achieve semi-natural supersymmetry with reduced fine-tuning

Abstract

We point out that the anomaly of the muon $g-2$ can be easily explained in a focus point supersymmetry scenario, which realizes the semi-natural supersymmetry. Among known focus point supersymmetry scenarios, we find that a model based on Higgs-gaugino mediation works with a mild fine-tuning $\Delta=40$-$80$. We propose two new focus point supersymmetry scenarios where the anomaly of the muon $g-2$ is also explained. These scenarios are variants of the widely known focus point supersymmetry based on gravity mediation with universal scalar masses.