On the current status of OZI violation in $\pi N$ and pp reactions

Abstract

The available data on $\omega$ and $\varphi$ production from $\pi N$ 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 $\varphi -\omega$ mixing angle.

Comments: 6 pages, svjour-style, including 10 ps-figures