Speaker
Description
The anomalous magnetic moment of the muon is one of the most
accurately measured quantities in particle physics and one of the very
few to exhibit a significant discrepancy with respect to its Standard
Model determination. The origin of this discrepancy is unknown. Forthcoming experimental results which are expected to improve the already
impressive accuracy of 0.54 parts per million reached by previous measurements, call for improved theory predictions. Standard Model
uncertainties are dominated by non-perturbative QCD corrections, namely the hadronic vacuum polarization and the hadronic light-by-light (HLBL) contributions. After reviewing the status of theory predictions, I will present the basic features and numerical results of a novel
framework which by exploiting the general principles of unitarity and
analyticity, paves the way for the first data-driven determination of
HLbL with controlled uncertainties.
