Hadronic light-by-light scattering contribution to the muon magnetic anomaly: constituent quark loops and QCD effects

Details Hadronic light-by-light scattering contribution to the muon magnetic anomaly: constituent quark loops and QCD effects Hadronic light-by-light scattering contribution to the muon magnetic anomaly: constituent quark loops and QCD effects

2011-04-22

arxiv.org/abs/1104.4510v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure

Scientific paper

The hadronic light-by-light scattering contribution to the muon anomalous magnetic moment can be estimated by computing constituent quark loops. Such an estimate is very sensitive to the numerical values of the constituent quark masses. These can be fixed by computing the hadronic vacuum polarization contribution to the muon magnetic anomaly within the same model. In this Letter, we demonstrate the stability of this framework against first-order perturbative QCD corrections.

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