Hadronic contributions to electroweak observables within DPT

Abstract

Dispersive approach to quantum chromodynamics is applied to the assessment of hadronic contributions to electroweak observables. The employed approach merges the corresponding perturbative input with intrinsically nonperturbative constraints, which originate in the respective kinematic restrictions. The evaluated hadronic contributions to the muon anomalous magnetic moment and to the shift of the electromagnetic fine structure constant at the scale of Z boson mass conform with recent assessments of these quantities.

Comments: Talk given at 18th International QCD Conference (QCD 15), 29 June - 3 July 2015, Montpellier, France; 5 pages, 3 figures