Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8185766 | Nuclear Physics B - Proceedings Supplements | 2011 | 4 Pages |
Abstract
The light-by-light contribution from the lightest neutral pseudoscalar mesons to the anomalous magnetic moment of muon is calculated in the framework nonlocal SU(3)ÃSU(3) quark model. The model is based on four-quark interaction of the Nambu-Jona-Lasinio type and t'Hooft six-quark interaction. Full kinematic dependencies of vertices with off-shell mesons in the light-by-light scattering amplitude is taken into account. As a result of that dependence the pseudoscalar contribution aμPS,LbL=(5.85±0.87)â
10â10 is smaller then most of previous estimates. The comparison with the results of other models is performed.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
A.E. Dorokhov, A.E. Radzhabov, A.S. Zhevlakov,