Photoproduction of eta and eta-prime mesons off nucleons close to threshold

Details Photoproduction of eta and eta-prime mesons off nucleons close to threshold Photoproduction of eta and eta-prime mesons off nucleons close to threshold

2001-02-09

arxiv.org/abs/hep-ph/0102112v1

Eur.Phys.J. A9 (2000) 95-107

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 9 figures

Scientific paper

10.1007/s100500070059

The importance of Born terms and resonance exchange for eta and eta-prime photoproduction off both the proton and neutron within U(3) baryon chiral perturbation theory is investigated. Low-lying resonances such as the vector mesons and J^P= 1/2^+, 1/2^- baryon resonances are included explicitly and their contributions together with the Born terms are calculated. The coupling constants of the resonances are determined from strong and radiative decays. We obtain reasonable agreement with experimental data near threshold.

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