PoS - Proceedings of Science
Volume 430 - The 39th International Symposium on Lattice Field Theory (LATTICE2022) - QCD in searches for physics beyond the Standard Model
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
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Pre-published on: February 10, 2023
Published on: April 06, 2023
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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