Study of (p)over-barp→φη and (p)over-barp→K+K- channels of antiproton annihilation at rest at three hydrogen target densities

The Okubo-Zweig-Iizuka (OZI) rule predicts that a ratio between the cross sections or annihilation frequencies of phi and omega meson production should be on the level of 4.10(-3).. It is known that the predictions of the OZI rule are fulfilled in the hadronic interactions at a level of about 10%. Recently large OZI rule violation has been found in some (p) over bar p annihilation channels in the experiments with stopped antiprotons at LEAR(CERN).