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arXiv 2103.07218hep-ex
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含ALICE小碰撞系统中带电粒子产生的拓扑研究及喷注猝灭效应的探索

Topological studies of charged particle production and search for jet quenching effects in small collision systems with ALICE

Sushanta Tripathy

摘要:

在LHC上对pp和p-Pb高多重数碰撞的研究结果表明,这些小碰撞系统具有集体性特征。为了理解这些意想不到的现象的起源,相对横向活动分类器($R_{\rm{T}}$)可以被利用作为一种工具来解开软和硬粒子的生产,通过研究与横向动量触发粒子相关联的不同拓扑区域中的带电粒子的产率。这使得研究系统的大小依赖的带电粒子生产的不同来源,特别是搜索喷射淬火效应。在这里,给出了在$\sqrt{s_{\rm NN}}$ = 5.02 TeV的pp、p-Pb和Pb-Pb碰撞中带电粒子产生的系统尺寸和$R_{\rm{T}}$依赖性的结果。

英文摘要:

Results for high multiplicity pp and p-Pb collisions at the LHC have revealed that these small collision systems exhibit features of collectivity. To understand the origin of these unexpected phenomena, the relative transverse activity classifier ($R_{\rm{T}}$) can be exploited as a tool to disentangle soft and hard particle production, by studying the yield of charged particles in different topological regions associated with transverse momentum trigger particles. This allows to study system size dependence of charged particle production of different origins and in particular search for jet-quenching effects. Here, results on the system size and $R_{\rm{T}}$ dependence of charged particle production in pp, p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV are presented.

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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