Heavy Quarkonium Physics-Theoretical Status

Abstract

We briefly review the theoretical status and the open theoretical challenges in the physics of heavy quarkonium.

Comments: To be published in Acta Physica Polonica, based on the invited talk given at 31st International Conference of Theoretical Physics: Matter to the Deepest: Recent Development in Physics of Fundamental Interactions, Ustron, Katowice, Poland, 5-11 Sep 2007. References added