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arXiv · 1312.1226

Axial anomaly and vector meson dominance model

Yaroslav Klopot·Armen Oganesian·Oleg Teryaev
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Abstract

The dispersive representation of axial anomaly leads to the anomaly sum rules (ASRs), exact nonperturbative relations in QCD. The analytical continuation of the ASRs to the time-like region is performed. The transition form factors of $\pi^0$, $\eta$ and $\eta'$ mesons in this region are calculated. A good agreement with the available experimental data is found. Based on the ASRs, we have provided the foundations for the vector meson dominance model in these processes.

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Yaroslav Klopot, Armen Oganesian, Oleg Teryaev. 2013-12-04. Axial anomaly and vector meson dominance model. https://doi.org/10.1134/s002136401412008x

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