A quantitative analysis of charmonium suppression in nuclear collisions

被引：250

作者：

Kharzeev, D

Lourenco, C

Nardi, M

Satz, H

机构：

[1] CERN,DIV PPE,CH-1211 GENEVA 23,SWITZERLAND

[2] UNIV TURIN,IST NAZL FIS NUCL,I-10125 TURIN,ITALY

[3] UNIV TURIN,INFN TORINO,I-10125 TURIN,ITALY

[4] CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1997年 / 74卷 / 02期

关键词：

TRANSVERSE ENERGY-DISTRIBUTIONS; QUARK-GLUON PLASMA; J-PSI-SUPPRESSION; 200; GEV-NUCLEON; J/PSI-SUPPRESSION; DEPENDENCE; MATTER;

D O I：

10.1007/s002880050392

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Data from J/psi and psi(1). production in p - A collisions are used to determine the cross section for absorption of pre-resonance charmonium in nuclear matter. The J/psi suppression in O - Cu, O - U and S - U collisions is fully reproduced by the corresponding nuclear absorption, while Pb - Pb collisions show an additional suppression increasing with centrality. We study the onset of this change in terms of hadronic comover interactions and conclude that so far no conventional hadronic description can consistently account for all data. Deconfinement, starting at a critical point determined by central S-U collisions, is in accord with the observed suppression pattern.

引用

页码：307 / 318

页数：12

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