Coherence time effects on J/ψ production and suppression in relativistic heavy ion collisions -: art. no. 024901

被引：3

作者：

Gale, C

Jeon, S

Kapusta, J

机构：

[1] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA

[3] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

来源：

PHYSICAL REVIEW C | 2001年 / 63卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.63.024901

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Using a coherence time extracted from high precision proton-nucleus Drell-Yan measurements and a nuclear absorption cross section extracted from pA charmonium production experiments, we study J/psi production and absorption in nucleus-nucleus collisions. We find that coherence time effects are large enough to affect the measured J/psi -to-Drell-Yan ratio. The S+U data at 200A GeV/c measured by NA38 are reproduced quantitatively without the introduction of any new parameters. However, when compared with recent NA50 measurements for Pb+Pb at 158A GeV/c,the data is not reproduced in trend or in magnitude.

引用

页数：4

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