Effective-field theories for charged lepton flavour violation

TL;DR

This paper reviews current and future bounds on muonic lepton flavor violation within an effective-field theory framework, emphasizing the importance of experimental interplay to explore the full parameter space.

Contribution

It provides a comprehensive analysis of muonic lepton flavor violating processes using effective-field theory, highlighting the significance of combined experimental constraints.

Findings

Experimental bounds constrain new physics at high scales.

Interplay between different experiments enhances parameter space coverage.

Future experiments will significantly improve sensitivity to LFV processes.

Abstract

These proceedings review the status of present and future bounds on muonic lepton flavour violating transitions in the context of an effective-field theory defined below the electroweak scale. A specific focus is set on the phenomenology of $\mu\to e\gamma$, $\mu \to 3e$ transitions and coherent $\mu\to e$ nuclear conversion in the light of current and future experiments. Once the experimental limits are recast into bounds at higher scales, it is shown that the interplay between the various experiments is crucial to cover all corners of the parameter space.