# The 16th International Workshop on Tau Lepton Physics (TAU2021) (Virtual Edition)

September 27, 2021 to October 1, 2021
Indiana University
America/Indiana/Indianapolis timezone

## A continuum determination of the strong isospin-breaking contribution to the muon anomalous magnetic moment

Sep 30, 2021, 3:15 PM
20m
Virtual (Indiana University)

### Virtual

#### Indiana University

Oral contribution Tau2021 Abstracts

### Speaker

Kim Maltman (York University)

### Description

We present a continuum determination of a_mu^SIB, the strong isospin-breaking contribution to a_mu, the anomalous magnetic moment of the muon, using ChPT and the formulation of a_mu as a weighted integral of the electromagnetic current two-point function over Euclidean Q^2. Flavor-breaking hadronic tau decay sum rules are shown to provide a determination of a key higher-order chiral LEC encoding numerically important resonance region contributions. Implications of the structure of the result for the lattice determination of a_mu^SIB are also discussed.

What is your topic? Anomalous Magnetic Moment of the muon

### Primary authors

Christopher James (York University) Kim Maltman (York University) Randy Lewis (York University)