期刊
NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS
卷 270, 期 -, 页码 206-210出版社
ELSEVIER
DOI: 10.1016/j.nuclphysbps.2016.02.041
关键词
nonperturbative methods; low-energy QCD; dispersion relations; electroweak observables
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.
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