# Charged lepton flavour violation: precise background calculation and effective field theoretical interpretation

## TL;DR

This paper reviews recent advances in precise background calculations for charged lepton flavour violation and discusses effective field theory interpretations of related observables, impacting experimental searches.

## Contribution

It provides a systematic approach to EFT interpretation of charged lepton flavour violation and updates on NLO QED background calculations for muonic decays.

## Key findings

- Updated NLO QED background calculations for muonic decays
- Systematic EFT framework for interpreting LFV observables
- Implications for current and future experiments

## Abstract

This note reviews recent theoretical developments in the study of charged lepton flavour violation. The first part illustrates the status of precise next-to-leading order quantum electrodynamics calculations for the background of charged lepton flavour-violating processes, with a focus on the muonic "rare" and "radiative" decays. Phenomenological implications of these computations and their impact on present and future experiments will be discussed. The second part describes the recent progress in the effective field theory interpretation of charged lepton-flavour violating observables in connection with different energy scales. A systematic approach is briefly presented and applications on muonic and tauonic observables are reported. This note is submitted as part of the conference proceedings for "NuPhys2016: Prospects in Neutrino Physics".