Exclusive two-charmonium vs. charmonium-glueball production at BELLE

Abstract

We review the current theoretical situation with regard to the anomalously large cross section for exclusive J/psi + eta_c production in e^+ e^- annihilation, as measured by BELLE Collaboration.

Comments: 6 pages, 5 figures, Talk presented at 2nd International Conference on Flavor Physics (ICFP 2003), Korea Institute for Advanced Study, Seoul, Korea, October 6-11, 2003