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arXiv · hep-ph/0412232

Vector and axial-vector current correlators within the instanton model of QCD vacuum

A. E. Dorokhov
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Abstract

The pion electric polarizability, α^E_π^\pm, the leading order hadronic contribution to the muon anomalous magnetic moment, $a_μ^{hvp 1} $, and the ratio of the difference to the sum of vector and axial-vector correlators, (V-A)/(V+A), are found within the instanton model of QCD vacuum. The results are compared with phenomenological estimates of these quantities following from the ALEPH and OPAL data on vector and axial-vector spectral densities.

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A. E. Dorokhov. 2004-12-16. Vector and axial-vector current correlators within the instanton model of QCD vacuum. https://doi.org/10.1142/9789812701909_0034

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