J/Ψ suppression in ultrarelativistic nuclear collisions -: art. no. 054905

被引:74
作者
Zhang, B [1 ]
Ko, CM
Li, BA
Lin, ZW
Sa, BW
机构
[1] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA
[2] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
[3] Arkansas State Univ, Dept Chem & Phys, State Univ, AR 72467 USA
[4] China Inst Atom Energy, Beijing 102413, Peoples R China
来源
PHYSICAL REVIEW C | 2000年 / 62卷 / 05期
关键词
D O I
10.1103/PhysRevC.62.054905
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 multiphase transport model, we study the relative importance of J/psi suppression mechanisms due to plasma screening, gluon scattering, and hadron absorption in heavy ion collisions at the Relativistic Heavy Ion Collider. We find that for collisions between heavy nuclei such as Au+Au, both plasma screening and gluon scattering are important. As a result, the effect due to absorption by hadrons becomes relatively minor. The final J/psi survival probability in these collisions is only a few percent. In the case of collisions between light nuclei such as S+S, the effect of plasma screening is, however, negligible in spite of the initial high parton density. The final J/psi survival probability thus remains appreciable after comparable absorption effects due to gluons and hadrons.
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页数:7
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