标题： 夸克胶子球产生和核碰撞中的颜色去禁闭 显示英文标题

标题： Quarkonium Production and Color Deconfinement in Nuclear Collisions

摘要： 夸克偶素在核-核碰撞中的抑制最初被提出作为颜色禁闭解除的信号。 NA50合作组在这次会议上报告了在Pb-Pb碰撞中出现的强“异常”J/\psi 抑制。 这种抑制真的异常吗？ 我们能否得出夸克-胶子等离子体已经被发现的结论？ 下一步需要做些什么？ 我基于当前对夸克偶素产生的理论理解以及新的精确实验信息来回答这些问题。 显示英文摘要

摘要： The suppression of quarkonium production in nucleus-nucleus collisions was originally proposed as a signal of colour deconfinement. Strong ``anomalous" J/\psi suppression in Pb-Pb collisions has been reported at this Conference by the NA50 Collaboration. Is this suppression really anomalous? Can we conclude that the quark-gluon plasma is already discovered? What has to be done next? I address these questions basing on the current theoretical understanding of quarkonium production and new precise experimental information.