arXiv 0901.20842009-01-14nucl-th

核-核碰撞中的$J/ψ$抑制

$J/ψ$ suppression in nucleus-nucleus collisions

Binoy Krishna Patra, Vinod Chandra, Vineet Agotiya

备注：: 10 Pages, 2 Figures, two column, Based on invited talk in DAE symposium on Nuclear Physics, Dec. 22 to 26, 2008 (IIT Roorkee, India)

摘要：

在高温下，强烈相互作用的物质变成了解除束缚的夸克和胶子等离子体。在统计QCD中，通过研究重夸克束缚态在介质中的行为，可以研究解禁闭和由此产生的夸克-胶子等离子体的性质。在高能核相互作用中，夸克偶素探测碰撞中形成的介质的不同方面。因此，我们首先回顾了夸克偶素在碰撞产生的（动力学）系统的不同阶段中的命运。然后，我们通过研究热QCD介质对重夸克势的修正，给出了我们目前关于热QCD介质中重夸克偶素态解离的工作。与通常的筛选图片相反，有趣的是，我们的理论给出了电荷的筛选，而不是电势的范围。

英文摘要：

At high temperatures, strongly interacting matter becomes a plasma of deconfined quarks and gluons. In statistical QCD, deconfinement and the properties of the resulting quark-gluon plasma can be investigated by studying the in-medium behaviour of heavy quark bound states. In high energy nuclear interactions, quarkonia probe different aspects of the medium formed in the collision. So, we first reviewed the fate of quarkonia in the different stages of the (dynamical) system produced at the collision. We have then presented our present work on the dissociation of the heavy quarkonium states in a hot QCD medium by investigating the medium modifications to heavy quark potential. In contrast to the usual screening picture, interestingly our theory gives rise the screening of the charge, not the range of the potential.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

摘要：

英文摘要：

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