Calculating the QED correction to the hadronic vacuum polarisation on the lattice
G. Ray*,
A. Bazavov,
C. Davies,
C. DeTar,
A.X. El-Khadra,
S. Gottlieb,
D. Hatton,
H. Jeong,
A. Kronfeld,
S. Lahert,
P. Lepage,
C. McNeile,
J.N. Simone and
A. Vaquero Avilés-Casco*: corresponding author
Pre-published on:
February 10, 2023
Published on:
April 06, 2023
Abstract
Isospin-breaking corrections to the hadron vacuum
polarization component of the
anomalous magnetic moment of the muon are needed to ensure the
theoretical precision of $g_\mu -2$ is below the experimental
precision. We describe the status of our work calculating, using
lattice QCD, the QED correction to the light and strange
connected hadronic vacuum polarization in a Dashen scheme.
We report results using physical $N_f=2+1+1$ HISQ ensembles at three lattice spacings and three heavier-than-light valence quark masses.
DOI: https://doi.org/10.22323/1.430.0329
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