Mott effect at the chiral phase transition and anomalous J/Psi suppression
Nuclear Theory
2009-11-06 v3 High Energy Physics - Phenomenology
Abstract
We investigate the in-medium modification of the charmonium break-up processes due to the Mott effect for light (pi) and open-charm (D, D*) mesons at the chiral/deconfinement phase transition. A model calculation for the process J/Psi + pi -> D + \bar D* + h.c. is presented which demonstrates that the Mott effect for the D-mesons leads to a threshold effect in the thermal averaged break-up cross section. This effect is suggested as an explanation of the phenomenon of anomalous J/Psi suppression in the CERN NA50 experiment.
Cite
@article{arxiv.nucl-th/0012030,
title = {Mott effect at the chiral phase transition and anomalous J/Psi suppression},
author = {Gerhard R. G. Burau and David B. Blaschke and Yuri L. Kalinovsky},
journal= {arXiv preprint arXiv:nucl-th/0012030},
year = {2009}
}
Comments
9 pages, 3 figures; final version to appear in Phys. Lett. B