Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2018 |
| 卷号 | 785页码:14-39 |
| 关键词 | CMS Heavy ion Physics Photon Jet Jet quenching |
| ISSN号 | 0370-2693 |
| DOI | 10.1016/j.physletb.2018.07.061 |
| 文献子类 | Article |
| 英文摘要 | Measurements of azimuthal angle and transverse momentum (p(T)) correlations of isolated photons and associated jets are reported for pp and PbPb collisions at root s(NN) = 5.02 TeV. The data were recorded with the CMS detector at the CERN LHC. For events containing a leading isolated photon with p(T)(gamma) > 40 GeV/c and an associated jet with p(T)(jet) > 30 GeV/c, the photon+jet azimuthal correlation and p(T) imbalance in PbPb collisions are studied as functions of collision centrality and p(T)(gamma). The results are compared to pp reference data collected at the same collision energy and to predictions from several theoretical models for parton energy loss. No evidence of broadening of the photon+jet azimuthal correlations is observed, while the ratio p(T)(jet)/p(T)(gamma) decreases significantly for PbPb data relative to the pp reference. All models considered agree within uncertainties with the data. The number of associated jets per photon with p(T)(gamma) > 80GeV/c is observed to be shifted towards lower p(T)(jet) in central PbPb collisions compared to pp collisions. (C) 2018 The Author. Published by Elsevier B.V. |
| 电子版国际标准刊号 | 1873-2445 |
| WOS关键词 | HEAVY-ION COLLISIONS ; QUARK-GLUON PLASMA ; TRANSVERSE-MOMENTUM ; LEAD COLLISIONS ; ATLAS DETECTOR ; ENERGY-LOSS ; DEPENDENCE ; MATTER ; IDENTIFICATION ; SUPPRESSION |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000447424000004 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286821]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | CMS Collaboration. Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV[J]. PHYSICS LETTERS B,2018,785:14-39. |
| APA | CMS Collaboration.(2018).Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV.PHYSICS LETTERS B,785,14-39. |
| MLA | CMS Collaboration."Study of jet quenching with isolated-photon+jet correlations in PbPb and pp collisions at sNN=5.02 TeV".PHYSICS LETTERS B 785(2018):14-39. |
入库方式： OAI收割
来源：高能物理研究所
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