Study of pp→φη and pp→K+ K-η channels of antiproton annihilation at rest at three hydrogen target densities

摘要

The Okubo-Zweig-Iizuka(OZI) rule predicts that a ratio between the cross sections or annihilation frequencies of φ and ω 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 10/100. Recently large OZI rule violation has been found in some pp annihilation Channels in the experiments with stopped antiprotons at LEAR (CERN).