Reevaluation of the hadronic contributions to the muon g−2 and to $\alpha (M^{2}_{Z})$
Reevaluation of the hadronic contributions to the muon g−2 and to $\alpha (M^{2}_{Z})$
We reevaluate the hadronic contributions to the muon magnetic anomaly, and to the running of the electromagnetic coupling constant at the Z-boson mass. We include new pi+pi- cross-section data from KLOE, all available multi-hadron data from BABAR, a reestimation of missing low-energy contributions using results on cross sections and process …