The pseudoscalar hadronic channel contribution of the light-by-light process to the muon (g-2) within the nonlocal chiral quark model

Abstract

The light-by-light contribution to the anomalous magnetic moment of muon (g-2)_μ from the hadronic exchanges in the neutral pseudoscalar meson channel is calculated in the nonlocal chiral quark model. The full kinematic dependence of the meson-two-photon vertices on the virtualities of the mesons and photons is taken into account. The status of various phenomenological and QCD short-distance constraints is discussed and the comparison with the predictions of other models is performed. It is demonstrated that the effect of the full kinematic dependence in the meson-photon vertices is to reduce the contribution of pseudoscalar exchages to a_μ^{PS,LbL} by approximately factor 1.5 in comparison with the most of previous estimates.

11 pages, 7 figures; version for journal, minor corrections are made

References in corpus (5)

• The Hadronic Light-by-Light Contribution to the Muon Anomalous Magnetic Moment: Where do we stand?
• The hadronic light by light contribution to the $(g-2{)}_{\mu }$ with holographic models of QCD
• Pseudo scalar contributions to light-by-light correction of muon g-2 in AdS/QCD
• Pion pole light-by-light contribution to g-2 of the muon in a nonlocal chiral quark model
• A fresh look at hadronic light-by-light scattering in the muon g-2 with the Dyson-Schwinger approach

Cited by in corpus (3)

• The light-by-light contribution to the muon (g-2) from lightest pseudoscalar and scalar mesons within nonlocal chiral quark model
• The role of momentum dependent dressing functions and vector meson dominance in hadronic light-by-light contributions to the muon g-2
• The role of vector meson dominance and running masses in the hadronic contributions to the muon $g-2$