Sequential charmonium dissociation
High Energy Physics - Phenomenology
2008-11-26 v3
Abstract
Finite temperature lattice QCD indicates that the charmonium ground state J/psi can survive in a quark-gluon plasma up to 1.5 T_c or more, while the excited states chi_c and psi-prime are dissociated just above T_c. We assume that the chi_c suffers the same form of suppression as that observed for the psi-prime in SPS experiments, and that the directly produced J/psi is unaffected at presently available energy densities. This provides a parameter-free description of J/psi and psi-prime suppression which agrees quite well with that observed in SPS and RHIC data.
Cite
@article{arxiv.hep-ph/0512239,
title = {Sequential charmonium dissociation},
author = {F. Karsch and D. Kharzeev and H. Satz},
journal= {arXiv preprint arXiv:hep-ph/0512239},
year = {2008}
}
Comments
10 pages, 8 figures