Speaker
Description
In this presentation we discuss a strategy to use experimental data from hadronic tau decays for the Hadronic-Vacuum-Polarization contribution to the muon anomalous moment. Having a model-independent determination of the corresponding isospin-breaking effects has been recently highlighted as a priority in the last White Paper. Here we present a strategy for their calculation from Lattice QCD+QED simulations, discussing both the short-distance renormalization in the context of momentum schemes and the long-distance effects.
By giving a prescription for the separation between factorizable and non-factorizable radiative corrections, we can calculate the difference between the neutral and charged channels, the most pressing theoretical input identified by the g-2 theory initiative.