Update of Euclidean windows of the hadronic vacuum polarization
Update of Euclidean windows of the hadronic vacuum polarization
We compute the standard Euclidean window of the hadronic vacuum polarization using multiple independent blinded analyses. We improve the continuum and infinite-volume extrapolations of the dominant quark-connected light-quark isospin-symmetric contribution and address additional subleading systematic effects from sea-charm quarks and residual chiral-symmetry breaking from first principles. We find ${a}_{\mathrm{\ensuremath{\mu}}}^{\mathrm{W}}=235.56(65)(50)\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}10}$, which …