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Near-Threshold Production of omega Mesons in the pp -> pp omega Reaction

F. Hibou, O. Bing, M. Boivin, P. Courtat, R. Gacougnolle, Y. Le Bornec, J. M. Martin, F. Plouin et al.

Phys.Rev.Lett.83:492-495,1999, 1999

Abstract

The total cross section for omega production in the pp -> pp omega reaction has been measured at five c.m. excess energies from 3.8 to 30 MeV. The energy dependence is easily understood in terms of a strong proton-proton final state interaction combined with a smearing over the width of the state. The ratio of near-threshold phi and omega production is consistent with the predictions of a one-pion-exchange model and the degree of violation of the OZI rule is similar to that found in the pi-p -> n omega/phi reactions.

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