Sala Seminarios IFIC (Edf. Institutos de Investigación)
Sala Seminarios IFIC
Edf. Institutos de Investigación
Descripción
The prediction of the anomalous magnetic moment of the muon in the Standard Model is reviewed, with emphasis on recent changes, loose ends, open questions and expected further progress in the evaluation of the hadronic contributions. The SM prediction, when confronted with the measurement from Brookhaven, currently signals a 2.7 sigma deviation. With the same comprehensive compilation of data for the hadronic cross section R_had at low energies as used for g-2, we also calculate the hadronic contributions to the running electromagnetic coupling alpha.