Measurement of isolated photon-hadron correlations in sqrt(s_NN) = 5.02 TeV pp and p-Pb collisions
Measurement of isolated photon-hadron correlations in sqrt(s_NN) = 5.02 TeV pp and p-Pb collisions
复制标题
sqrt(s_NN) = 5.02 TeV pp 和 p-Pb 碰撞中孤立光子-强子相关性的测量
DOI：
10.1103/physrevc.102.044908
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发表时间：
2020
影响因子：
3.1
通讯作者：
T. Chujo et al. (ALICE Collaboration)
中科院分区：
文献类型：
--
作者：
S. Acharya;T. Chujo et al. (ALICE Collaboration)
本文使用 LHC 的 ALICE 探测器收集的 Pb 数据介绍了孤立的光子-强子相关性。对于 和 GeV/ 的光子，给出了 和 GeV/ 范围内带电粒子的相关产量。这些动量远低于大型强子对撞机之前的测量结果。和-Pb 之间没有观察到显着差异，Pythia 8.2 在不确定性范围内描述了两个数据集。该测量限制了Pb碰撞中部分子碎片的核效应，并为未来Pb-Pb碰撞研究提供了基准。
This paper presents isolated photon-hadron correlations usingand-Pb data collected by the ALICE detector at the LHC. For photons withandGeV/, the associated yield of charged particles in the rangeandGeV/is presented. These momenta are much lower than previous measurements at the LHC. No significant difference betweenand-Pb is observed, withPythia 8.2describing both data sets within uncertainties. This measurement constrains nuclear effects on the parton fragmentation in-Pb collisions, and provides a benchmark for future studies of Pb-Pb collisions.