A study of the Okubo-Zweig-Iizuka rule violations in eta(c) - V V

摘要

We discuss the Okubo-Zweig-lizuka (OZI) rule violation effects in eta(c) -> VV in light of the new data from BES Collaboration. In particular, a possible non-vanishing branching ratio for eta(c) -> omega phi 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. (c) 2006 Elsevier B.V. All rights reserved.