Glueball decay widths and glueball dominance of quarkonium decays

Abstract

We present a realization of quarkonium decay violating the Okubo-Zweig-Iizuka (OZI) rule dominated by intermediate glueball resonances. This leads to glueball decay widths which interpolate OZI-rule allowed and forbidden widths, i.e., glueball widths of the order of tens of MeV.