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On the Coupling of the $\eta $ Meson to the Nucleon

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arxiv nucl-th/9601002 v1 pith:PRC6JX4T submitted 1996-01-04 nucl-th

M. Kirchbach , L. Tiator This is my paper · ORCID
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keywords mesoncouplingagreementamplitudesassociatedcalculatedconcludedconstants
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abstract

The pseudoscalar and pseudovector $\eta N$ coupling constants are calculated from an effective vertex associated with the $a_0(980)\pi N$ triangle diagram. The predicted values are in agreement with the ones concluded from fitting $\eta $ photoproduction amplitudes. In this context we stress the importance of the properties of the scalar meson octet for $\eta $ meson physics.

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  1. Exclusive $\eta$ production in proton-proton collisions at energies available at the GSI Facility for Antiproton and Ion Research

    hep-ph 2025-01 conditional novelty 5.0 of 10

    A phenomenological model with N(1535) dominance and rho-exchange excitation reproduces existing pp to pp eta data and predicts cross sections for HADES, PANDA, and SIS100.

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