A study of the Okubo-Zweig-Iizuka rule violations in $η_c\to VV$
Abstract
Description
We discuss the Okubo-Zweig-Iizuka (OZI) rule violation effects in $η_c\to VV$ in light of the new data from BES Collaboration. In particular, a possible non-vanishing branching ratio for $η_c\to ωϕ$ provides a hint of the degrees of OZI violations based on a recent factorization proposed for charmonium hadronic decays. The violation mechanism is studied via an intermediate meson exchange model. The results are consistent with the experimental observations.
6 pages, 1 figure; typos corrected; version to appear in Phys. Lett. B
6 pages, 1 figure; typos corrected; version to appear in Phys. Lett. B