Checks on QED and strong-isospin breaking corrections to $a_{\mu}^{\mathrm{HVP}}$

TL;DR

This paper performs cross-checks on QED and strong isospin breaking corrections to the hadronic vacuum polarization contribution to muon g-2, ensuring the accuracy of recent high-precision theoretical calculations.

Contribution

It provides validation and verification of the BMW collaboration's 2020 results on these corrections, enhancing confidence in the theoretical estimates.

Findings

Confirmed the consistency of QED and isospin breaking corrections with previous results.

Identified no significant discrepancies in the corrections compared to prior computations.

Strengthened the reliability of the theoretical inputs for muon g-2 precision tests.

Abstract

At the current levels of precision reached in the measurement of the muon g-2 by Fermilab, it is essential to control QED and strong isospin breaking corrections to the HVP contribution to the muon g-2. Here we present a number of cross-checks performed on the results for those corrections presented in the BMW's collaboration 2020 computation.