Isospin dependence of the eta meson production in hadronic collisions

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Czyzykiewicz, Rafal
Moskal, Pawel
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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 {\sigma_{I=0}(pn-->pn eta)}/{\sigma(pp-->pp eta)} and \sigma_{I=0}(pn-->pn eta)}/{\sigma(pn-->d eta)} can be described using the Faldt and Wilkin analitical parametrization of the nucleon-nucleon final state interaction.
Comment: Presented at Symposium on Meson Physics: extended COSY-11 collaboration meeting, Cracow, Poland, 1-4 Oct 2008. (6 pages, 1 figure)
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Nuclear Experiment
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