Eur. Phys. J. A (2003) 18: 531-536
https://doi.org/10.1140/epja/i2002-10276-4

Charmonium cross-sections and the QGP

Physics Division ORNL and Department of Physics and Astronomy, University of Tennessee, TN, USA

^* e-mail: tbarnes@utk.edu

Abstract

In this contribution we summarize experimental information and theoretical results for the dissociation cross-sections of charmonium by light hadrons, which are of great importance for the identification of a quark-gluon plasma (QGP). Recent theoretical predictions for these cross-sections differ by orders of magnitude over the physically relevant energy range. The methods discussed here include a color-dipole model, meson exchange models, a quark interchange model, and QCD sum rules.