Thursday, December 11, 2025, 16:00
WHGA Auditorium
Mattia Bruno, University of Milano
Abstract:
The muon anomalous magnetic moment continues to play a central role in our ability to test the Standard Model and its limits. The theoretical prediction of the muon g-2, and most importantly its uncertainty, is dominated by the contribution of the strong force, which requires non-perturbative methods, such as Lattice QCD simulations. Recent developments in this field led to a turning point in the precision achieved for the hadronic terms, in particular of the Hadronic Vacuum Polarization. The latter is one of the most important (and debated) contributions, whose community number, sanctioned in the latest White paper from the g-2 Theory initiative, is now dominated by Lattice QCD predictions.
In this talk I will broadly review this subject, with a particular focus on the contributions from the Lattice QCD community to the muon g-2, which are driving the current accuracy on the theoretical prediction, and as a consequence on the corresponding tension with the experimental determination.