20–30 Jul 2015
Joint Institute for Nuclear Research, Bogoliubov Laboratory of Theoretical Physics
Europe/Moscow timezone

Hadronic contributions to electroweak observables in the framework of dispersive approach to QCD

29 Jul 2015, 14:30
30m
Conference Hall (BLTP JINR)

Conference Hall

BLTP JINR

Speaker

Dr Alexander Nesterenko (Joint Institute for Nuclear Research)

Description

The dispersive approach to QCD is applied to the study of the hadronic vacuum polarization function and associated quantities. This approach merges the intrinsically nonperturbative constraints, which originate in the kinematic restrictions on the respective physical processes, with corresponding perturbative input. The obtained hadronic vacuum polarization function agrees with pertinent lattice simulation data. The evaluated hadronic contributions to the muon anomalous magnetic moment and to the shift of the electromagnetic fine structure constant conform with recent assessments of these quantities. [1] A.V.Nesterenko, Phys. Rev. D88, 056009 (2013). [2] M.Baldicchi, A.V.Nesterenko, G.M.Prosperi, and C.Simolo, Phys. Rev. D77, 034013 (2008). [3] A.V.Nesterenko and J.Papavassiliou, Phys. Rev. D71, 016009 (2005). [4] A.V.Nesterenko, Nucl. Phys. B (Proc. Suppl.) 258, 177 (2015). [5] A.V.Nesterenko, arXiv:1411.2554 [hep-ph].

Primary author

Dr Alexander Nesterenko (Joint Institute for Nuclear Research)

Presentation materials