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

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

2006-01-23

arxiv.org/abs/hep-ph/0601187v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages. Contribution to "Sense of Beauty in Physics - a volume in honour of Adriano Di Giacomo" (Pisa University Press, Pisa,

Scientific paper

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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