Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb+Pb Collisions at sNN =5.02 TeV with the ATLAS Detector
文献类型：期刊论文
| 作者 | ATLAS Collaboration |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2018 |
| 卷号 | 121期号:21页码:212301 |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/PhysRevLett.121.212301 |
| 文献子类 | Article |
| 英文摘要 | This Letter presents a measurement of gamma gamma -> mu(+)mu(-)- production in Pb + Pb collisions recorded by the ATLAS detector at the Large Hadron Collider at root s(NN) = 5.02 TeV with an integrated luminosity of 0.49 nb(-1). The azimuthal angle and transverse momentum correlations between the muons are measured as a function of collision centrality. The muon pairs are produced from gamma gamma through the interaction of the large electromagnetic fields of the nuclei. The contribution from background sources of muon pairs is removed using a template fit method. In peripheral collisions, the muons exhibit a strong back-to-back correlation consistent with previous measurements of muon pair production in ultraperipheral collisions. The angular correlations are observed to broaden significantly in central collisions. The modifications arc qualitatively consistent with rescattering of the muons while passing through the hot matter produced in the collision. |
| 电子版国际标准刊号 | 1079-7114 |
| WOS关键词 | HEAVY-ION COLLISIONS ; PERIPHERAL COLLISIONS ; MOMENTUM DEPENDENCE ; ROOT-S-NN=2.76 TEV ; NUCLEAR COLLISIONS ; JET SUPPRESSION ; PP COLLISIONS ; LHC ; PHOTOPRODUCTION ; PHOTON |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000450552800004 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286937]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 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 | ATLAS Collaboration. Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb+Pb Collisions at sNN =5.02 TeV with the ATLAS Detector[J]. PHYSICAL REVIEW LETTERS,2018,121(21):212301. |
| APA | ATLAS Collaboration.(2018).Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb+Pb Collisions at sNN =5.02 TeV with the ATLAS Detector.PHYSICAL REVIEW LETTERS,121(21),212301. |
| MLA | ATLAS Collaboration."Observation of Centrality-Dependent Acoplanarity for Muon Pairs Produced via Two-Photon Scattering in Pb+Pb Collisions at sNN =5.02 TeV with the ATLAS Detector".PHYSICAL REVIEW LETTERS 121.21(2018):212301. |
入库方式： OAI收割
来源：高能物理研究所
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