Combined analysis of near-threshold production of ω and φ mesons in nucleon-nucleon collisions within an effective meson-nucleon model
Forschungszentrum Rossendorf, PF 510119, 01314, Dresden, Germany
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Accepted: 17 September 2004
Published online: 21 December 2004
Vector meson ( V = ω,φ) production in near-threshold elementary nucleon-nucleon collisions pp↦ppV, pn↦pnV and pn↦dV is studied within an effective meson-nucleon theory. It is shown that a set of effective parameters can be established to describe fairly well the available experimental data of angular distributions and the energy dependence of the total cross-sections without explicit implementation of the Okubo-Zweig-Iizuka rule violation. Isospin effects are considered in detail and compared with experimental data whenever available.
PACS: 11.80.-m Relativistic scattering theory – / 13.75.Gx Pion-baryon interactions – / 14.20.Gk Baryon resonances with S = 0 – / 13.30.Eg Hadronic decays –
© Società Italiana di Fisica and Springer-Verlag, 2005