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arXiv 2009.08261hep-ex
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在$\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV和ALICE的Pb-Pb碰撞中通过强子+喷流测量的喷流共面性

Jet acoplanarity via hadron+jet measurements in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV with ALICE

Jaime Norman

摘要:

我们提出了第一个完全修正的半包含分布的带电喷流反冲从触发强子在0-10%的铅铅碰撞在$\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV作为一个函数的方位角之间的触发强子和喷流,$Δφ$。这种技术提供了一个精确的数据驱动的减法的大不相关的背景污染的测量,并使射流共面性的探索。显示了区域$30 < p_{\mathrm{T,jet}}^{\mathrm{ch}} < 40~\mathrm{GeV}/c$中$R=0.2$反冲射流的结果,其中相对于PYTHIA pp参考,在0-10% Pb-Pb碰撞中观察到$Δφ$分布的抑制和变窄。

英文摘要:

We present the first fully-corrected semi-inclusive distribution of charged jets recoiling from a trigger hadron in 0-10% Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV as a function of the azimuthal angle between the trigger hadron and jet, $Δφ$. This technique provides a precise data-driven subtraction of the large uncorrelated background contaminating the measurement, and enables the exploration of jet acoplanarity. Results for $R=0.2$ recoil jets in the region $30 < p_{\mathrm{T,jet}}^{\mathrm{ch}} < 40~\mathrm{GeV}/c$ are shown, where a suppression and narrowing of the $Δφ$ distribution is observed in 0-10% Pb-Pb collisions with respect to a PYTHIA pp reference.

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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