August 28, 2016 to September 4, 2016
Europe/Athens timezone

Dispersive approach to QCD and hadronic contributions to electroweak observables

Aug 30, 2016, 6:10 PM
20m
Aristotelis II (Makedonia Palace)

Aristotelis II

Makedonia Palace

Section B: Light Quarks Section B

Speaker

Alexander Nesterenko (Joint Institute for Nuclear Research)

Description

The dispersive approach to QCD, which extends the applicability range of
perturbation theory towards the infrared domain, is applied to the study
of the hadronic vacuum polarization function and related quantities. This
approach merges the intrinsically nonperturbative constraints, which
originate in the kinematic restrictions on the relevant 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 estimations of these quantities.

[1] A.V.Nesterenko, J. Phys. G42, 085004 (2015).

[2] A.V.Nesterenko, Phys. Rev. D88, 056009 (2013).

[3] M.Baldicchi, A.V.Nesterenko, G.M.Prosperi, and C.Simolo,
Phys. Rev. D77, 034013 (2008).

[4] A.V.Nesterenko and J.Papavassiliou, J. Phys. G32, 1025 (2006).

Primary author

Alexander Nesterenko (Joint Institute for Nuclear Research)

Presentation materials