Sequential charmonium dissociation

被引：186
|
作者：
Karsch, F.
Kharzeev, D. [1 ]
Satz, H.
机构：
[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
[2] Univ Bielefeld, Fak Phys, D-33501 Bielefeld, Germany
[3] Inst Super Tecn, CFTP, P-1049001 Lisbon, Portugal
来源：
PHYSICS LETTERS B | 2006年 / 637卷 / 1-2期
关键词：
D O I：
10.1016/j.physletb.2006.03.078
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Finite temperature lattice QCD indicates that the charmonium ground state J/psi can survive in a quark-gluon plasma up to 1.5T(c) or more, while the excited states chi(c) and psi' are dissociated just above T-c. We assume that the chi(c) suffers the same form of suppression as that observed for the psi' 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' suppression which agrees quite well with that observed in SPS and RHIC data. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：75 / 80
页数：6
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