Couplings of the eta and eta' Mesons to the Nucleon

Details Couplings of the eta and eta' Mesons to the Nucleon Couplings of the eta and eta' Mesons to the Nucleon

2005-12-04

arxiv.org/abs/hep-ph/0512048v3

Phys.Lett.B645:335-338,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

Version 3. The old version went by mistake Version to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2006.12.048

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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