On the current status of OZI violation in $πN$ and pp reactions

The available data on $ω$ and $ϕ$ production from $πN$ and $pp$ collisions are reanalyzed with respect to an OZI rule violation on the basis of transition matrix elements. The data are found to be compatible with a constant ratio $R$ up to excess energies $ε{\approx}300$ MeV, however, the ratio $R$ deviates substantially from the SU(3) prediction based on the present knowledge of the $ϕ-ω$ mixing angle.

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