Calculating the QED correction to the hadronic vacuum polarisation on the lattice
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 gμ -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 Nf=2+1+1 HISQ ensembles at three lattice spacings and three heavier-than-light valence quark masses.
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