A large Muon Electric Dipole Moment from Flavor?

TL;DR

This paper explores the potential for a large muon electric dipole moment within supersymmetric models, linking it to flavor violation and high-scale physics, and assesses its naturalness and experimental implications.

Contribution

It analyzes the conditions under which a sizable muon EDM can arise in supersymmetric models with CP violation and flavor violation, highlighting the connection to high messenger scales.

Findings

Large muon EDMs are possible within certain supersymmetric frameworks.

A sizable muon EDM suggests specific flavor-breaking structures at high scales.

The study constrains the parameter space consistent with experimental limits.

Abstract

We study the prospects and opportunities of a large muon electric dipole moment (EDM) of the order (10^{-24} - 10^{-22}) ecm. We investigate how natural such a value is within the general minimal supersymmetric extension of the Standard Model with CP violation from lepton flavor violation in view of the experimental constraints. In models with hybrid gauge-gravity mediated supersymmetry breaking a large muon EDM is indicative for the structure of flavor breaking at the Planck scale, and points towards a high messenger scale.