Isospin-corrected inclusive τ spectral functions yield light-quark-connected HVP and window quantities consistent with lattice QCD, but the 2π⁻π⁺π⁰ mode differs significantly from e⁺e⁻-based Pais expectations.
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The work computes structure-dependent radiative corrections to rho to pi pi decays beyond scalar QED to improve isospin-breaking inputs for tau-based evaluations of Delta a_mu^HVP,LO.
The updated SM prediction for the muon anomalous magnetic moment is 116592033(62)×10^{-11}, showing no tension with the experimental average of 38(63)×10^{-11}.
The paper provides an overview of theoretical calculations for lepton anomalous magnetic moments arising from quantum corrections in the Standard Model.
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Comparison of the hadronic vacuum polarization between hadronic $\tau$-decay data and lattice QCD
Isospin-corrected inclusive τ spectral functions yield light-quark-connected HVP and window quantities consistent with lattice QCD, but the 2π⁻π⁺π⁰ mode differs significantly from e⁺e⁻-based Pais expectations.
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Beyond scalar QED radiative corrections: the $\rho^{\pm}-\rho^0$ width difference, FSR corrections and their impact on $\Delta a_{\mu}^{\rm HVP, LO}[\tau]$
The work computes structure-dependent radiative corrections to rho to pi pi decays beyond scalar QED to improve isospin-breaking inputs for tau-based evaluations of Delta a_mu^HVP,LO.
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The anomalous magnetic moment of the muon in the Standard Model: an update
The updated SM prediction for the muon anomalous magnetic moment is 116592033(62)×10^{-11}, showing no tension with the experimental average of 38(63)×10^{-11}.
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Lepton anomalous magnetic moments: Theory
The paper provides an overview of theoretical calculations for lepton anomalous magnetic moments arising from quantum corrections in the Standard Model.