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arXiv · hep-ph/0512048

Couplings of the eta and eta' Mesons to the Nucleon

N. F. Nasrallah
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Abstract

The couplings of the eta and eta' mesons to the nucleon are obtained from the U_A(1) Goldberger-Treiman relation. The chiral symmetry breaking corrections are very large and bring the calculated values of the coupling constants G_etaNN and G_eta'NN close to values obtained from potential models.

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N. F. Nasrallah. 2007-01-15. Couplings of the eta and eta' Mesons to the Nucleon. https://doi.org/10.1016/j.physletb.2006.12.048

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