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arXiv 0709.1684nucl-thhep-ph
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LHC夸克-胶子等离子体中的热粲产生

Thermal Charm Production in Quark-Gluon Plasma at LHC

Ben-Wei Zhang, Che Ming Ko, Wei Liu

摘要:

本文用QCD方法研究了大型强子对撞机(LHC)中心重离子碰撞中快度产生的夸克-胶子等离子体的粲产生。使用一个示意性的纵向助推不变和横向扩展的火柱模型,我们发现,魅力生产可以明显增强在大型强子对撞机作为一个结果,预计将达到高温的生产夸克-胶子等离子体。我们的结果的初始硬散射产生的粲夸克对的数目,初始热化时间和温度的夸克-胶子等离子体,和粲夸克质量的敏感性进行了研究。

英文摘要:

Charm production from the quark-gluon plasma created in the midrapidity of central heavy ion collisions at the Large Hadron Collider (LHC) is studied in the next-to-leading order in QCD. Using a schematic longitudinally boost-invariant and transversally expanding fire-cylinder model, we find that charm production could be appreciably enhanced at LHC as a result of the high temperature that is expected to be reached in the produced quark-gluon plasma. Sensitivities of our results to the number of charm quark pairs produced from initial hard scattering, the initial thermalization time and temperature of the quark-gluon plasma, and the charm quark mass are also studied.

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。

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