# QED corrections to leptonic decay rates

## TL;DR

This paper discusses preliminary calculations of leptonic decay rates incorporating QED corrections, focusing on isospin breaking effects and exploring advanced computational techniques for improved accuracy.

## Contribution

It introduces a perturbative approach to include NLO QED effects in leptonic decay rate calculations and reports on exploratory computational methods.

## Key findings

- Preliminary numerical results for pion decay rate with QED corrections.
- Exploratory studies of all-to-all propagator techniques.
- Advancement in computational methods for decay rate calculations.

## Abstract

RBC/UKQCD is preparing a calculation of leptonic decay rates including isospin breaking corrections using a perturbative approach to include NLO contributions from QED effects. We present preliminary numerical results for a contribution to the leptonic pion decay rate and report on exploratory studies of computational techniques based on all-to-all propagators.