Isospin dependence of the eta meson production in hadronic collisions
Abstract
Based on recent COSY-11 results of measurements of total cross sections for the quasi-free pn-->pn eta reaction we determine the isospin I=0 component of the total cross section for the NN-->NN eta reaction down to the threshold. We show that the energy dependence of the total cross section ratios σI=0(pn-->pn eta)/σ(pp-->pp eta) and σI=0(pn-->pn eta)/σ(pn-->d eta) can be described using the Faldt and Wilkin analitical parametrization of the nucleon-nucleon final state interaction.
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