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Hadronic Contributions to the Muon Anomaly in the Constituent Chiral Quark Model

Authors
  • Greynat, David
  • de Rafael, Eduardo
Type
Preprint
Publication Date
Jul 17, 2012
Submission Date
Apr 13, 2012
Identifiers
DOI: 10.1007/JHEP07(2012)020
Source
arXiv
License
Yellow
External links

Abstract

The hadronic contributions to the anomalous magnetic moment of the muon which are relevant for the confrontation between theory and experiment at the present level of accuracy, are evaluated within the same framework: the constituent chiral quark model. This includes the contributions from the dominant hadronic vacuum polarization as well as from the next--to--leading order hadronic vacuum polarization, the contributions from the hadronic light-by-light scattering, and the contributions from the electroweak hadronic $Z\gamma\gamma$ vertex. They are all evaluated as a function of only one free parameter: the constituent quark mass. We also comment on the comparison between our results and other phenomenological evaluations.

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