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arXiv 1409.4458nucl-ex
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用ALICE研究pp,p-Pb和Pb-Pb碰撞中前向快度的粲偶素产生

Charmonium Production at Forward Rapidity in pp, p-Pb and Pb-Pb Collisions, with ALICE

Hugo Pereira Da Costa

摘要:

这方面的贡献主要集中在最新的ALICE结果在质子-质子(PP),质子-铅(p-Pb)和铅-铅(Pb-Pb)的碰撞在TeV尺度的正向生产的粲。在p-Pb和Pb-Pb碰撞中,测量结果以粲偶素核修正因子(重离子碰撞中产生截面与pp对应截面的归一化比值)作为粲偶素快度和横动量的函数。这些测量值进行比较,可用的理论计算。从胶子饱和、初末态能量损失、色屏蔽和复合等方面对这些结果进行了可能的解释。

英文摘要:

This contribution focuses on latest ALICE results on charmonium forward production in proton-proton (pp), proton-lead (p-Pb) and lead-lead (Pb-Pb) collisions at the TeV scale. In p-Pb and Pb-Pb collisions, measurements are presented in the form of the charmonium nuclear modification factor (the properly normalized ratio of its production cross section in heavy ion collisions to its pp counterpart) as a function of the charmonium rapidity and transverse momentum. These measurements are compared to available theoretical calculations. Possible interpretations of these results in terms of gluon saturation, initial and final state energy loss, color screening and recombination are also discussed.

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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