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Charge Symmetry Breaking in Pion-Nucleon Coupling Constants Induced by Axial Anomaly

N. I. Kochelev
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Abstract

The contribution of axial anomaly to charge symmetry breaking in pion-nucleon coupling constants is calculated within instanton model for QCD vacuum. It has been demonstrated that the contribution is large and allows to explain Nolen-Schiffer anomaly.

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N. I. Kochelev. 2006-01-25. Charge Symmetry Breaking in Pion-Nucleon Coupling Constants Induced by Axial Anomaly. https://arxiv.org/abs/hep-ph/0601187

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