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, B. Tatischeff, C. Wilkin, N. Willis, R. Wurzinger
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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