J/ψ suppression in Pb+Pb collisions and pT broadening -: art. no. 024906

被引：3

作者：

Chaudhuri, AK ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India

来源：

PHYSICAL REVIEW C | 2003年 / 68卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.68.024906

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：

We have analyzed the NA50 data on the centrality dependence of p(T) broadening of J/psi's in Pb+Pb collisions at the CERN-SPS. The data were analyzed in a QCD based model, where J/psi's are suppressed in "nuclear" medium. Without any free parameter, the model could explain the NA50 p(T) broadening data. The data were also analyzed in a quark-gluon plasma (QGP) based threshold model, where J/psi suppression is 100% above a critical density. The QGP based model could not explain the NA50 p(T) broadening data. We have also predicted the centrality dependence of J/psi suppression and p(T) broadening at RHIC energy. Both models, the QGP based threshold model and the QCD based nuclear absorption model, predict p(T) broadening very close to each other.

引用

页数：5

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