Seminars

The recent Fermilab experimental result, combined with the previous BNL one, confirms the ongoing four-sigma tension between the SM theory prediction of the anomalous magnetic moment (g-2) of the muon and the experimental value. However, some lattice QCD calculations have produced results for the hadronic vacuum polarization (HVP) contribution to the muon g-2 that solve the discrepancy with the experiments without the need of BSM physics. If this is confirmed, a new tension would arise either with the hadronic cross-section at low energies or with global electroweak fits. Lattice QCD results for the HVP contribution to the running of the electroweak couplings can shed light on this possible tension.