Mott mechanism and anomalous charmonium suppression
Abstract
Description
We investigate a scenario where conditions for Mott dissociation of charmonium are fulfilled locally in ultrarelativistic heavy ion collisions at the short time scales before hadronization and study possible consequences to be drawn from observation of ``anomalous'' thresholds in the J/ψsuppression pattern. We suggest that for a compilation of experiments with different kinematics, variables presently in use to display the observed suppression pattern should be rescaled by the $γ$ factor of the $c\bar c$ state relative to the participant center of mass. This systematics can be tested by inverse kinematics experiments as, e.g., Pb-S collisions and by sampling data sets in p_T and y of the dimuon pairs.
6 pages, LaTeX, 2 eps figures, To appear in: Proceedings of the International Workshop on Gross Properties of Nuclei and Nuclear Excitations XXV "QCD Phase Transitions", Hirschegg, Jan 13-18, 1997
6 pages, LaTeX, 2 eps figures, To appear in: Proceedings of the International Workshop on Gross Properties of Nuclei and Nuclear Excitations XXV "QCD Phase Transitions", Hirschegg, Jan 13-18, 1997