Update on the hadronic vacuum polarisation contributions to muon g − 2 and α(mZ2).

An update of the hadronic vacuum polarisation contributions to the muon magnetic anomaly and to the running of the electromagnetic couplings constant at the Z-boson mass is presented. Newest e+e−→ hadrons cross-section data mainly from the BABAR and VEPP-2000 experiments have been included. For the muon (g−2)/2, the lowest-order hadronic contribution is evaluated to be (693.1 ± 3.4) · 10−10, improving the precision of our previous evaluation by 21%. The full Standard Model prediction differs by 3.5 σ from the experimental value. The five-quark hadronic contribution to α (m z 2) $ \alpha (\mathop m\nolimits_z^2) $ is evaluated to be (276.0 ± 0.9) · 10−4. [ABSTRACT FROM AUTHOR]