Combined Analysis of Threshold-Near Production of ω and φ Mesons in Nucleon-Nucleon Collisions

Vector meson (V=ω , φ) production in threshold-near elementary nucleon-nucleon collisions pp to ppV, pn to pnV and pn to dV is studied within an effective meson-nucleon theory.
It is shown that a set of effective parameters can be established to explain fairly well the available experimental data on angular distributions and the energy dependence of the total cross sections without explicit implementation of the Okubo-Zweig-Iisuka rule violation. Isospin effects are considered in details and compared with experimental data whenever available.