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arXiv 1806.04861hep-phhep-ex
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LHC能下pPb碰撞中intermediate-pT D介子和带电粒子的中心相关长程角关联

Centrality dependent long-range angular correlations of intermediate-pT D-mesons and charged particles in pPb collisions at the LHC energy

Somnath Kar, Subikash Choudhury, Samrangy Sadhu, Premomoy Ghosh

摘要:

在LHC的高多重性事件的pPb碰撞在$\sqrt s_{NN}$ = 5.02 TeV的表现出不可预见的集体行为。对集体性的一个可能的解释可能是热化部分子物质的形成,就像在相对论性核-核碰撞中形成的部分子物质,并由流体动力学模型描述。本文研究了$\sqrt s_{NN}$ = 5.02 TeV的pPb碰撞中D介子和带电粒子的长程2 < $|Δη|$ < 4两粒子方位角关联.这项研究已经进行的事件,产生的EPOS 3流体动力学代码,再现的大部分功能的pPb数据在大型强子对撞机的能量。在模拟的高多重数pPb事例中,在中等pT范围内的D介子和带电粒子的长程两粒子角关联中出现了脊状结构。

英文摘要:

The high-multiplicity events of pPb collisions at $\sqrt s_{NN}$ = 5.02 TeV at the LHC exhibit unforeseen collective behaviour. One of the possible explanations to the collectivity could be the formation of thermalized partonic matter, like the one formed in relativistic nucleus-nucleus collisions and is described by the hydrodynamic models. This article presents a study on the centrality dependent long-range 2 < $|Δη|$ < 4 two-particle azimuthal correlations of D-mesons and charged particles in pPb collisions at $\sqrt s_{NN}$ = 5.02 TeV. The study has been conducted on the events, generated with the EPOS3 hydrodynamic code that reproduces most of the features of the pPb data at the LHC energy. There appears a ridge-like structure in the long-range two-particle angular correlations of D-mesons, in the intermediate pT -range, and charged particles in the simulated high-multiplicity pPb events.

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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