The near threshold total cross sections for the pp->pp eta' and pp->ppK+K- reactions has been measured at the COSY-11 facility. Possible production mechanisms are discussed. The energy dependence of the total cross section for the both reactions disagrees with predictions based on the phase space volume and the proton-proton final state interaction.
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Publication:
Act.Phys.Pol. B
29
(1998)
3091-3099