热门
Observation of long-range, near-side angular correlations in pPb collisions at the LHC
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2013 |
| 卷号 | 718期号:3页码:795-814 |
| 关键词 | PB-PB COLLISIONS ROOT-S(NN)=2.76 TEV NUCLEAR COLLISIONS FLOW ANISOTROPY |
| 通讯作者 | Sphicas, P (reprint author), CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland. |
| 英文摘要 | Results on two-particle angular correlations for charged particles emitted in pPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV are presented. The analysis uses two million collisions collected with the CMS detector at the LHC. The correlations are studied over a broad range of pseudorapidity, eta, and full azimuth, phi, as a function of charged particle multiplicity and particle transverse momentum, p(T). In high-multiplicity events, a long-range (2 < vertical bar Delta eta vertical bar < 4), near-side (Delta phi approximate to 0) structure emerges in the two-particle Delta eta-Delta phi correlation functions. This is the first observation of such correlations in proton-nucleus collisions, resembling the ridge-like correlations seen in high-multiplicity pp collisions at root s = 7 TeV and in AA collisions over a broad range of center-of-mass energies. The correlation strength exhibits a pronounced maximum in the range of p(T) = 1-1.5 GeV/c and an approximately linear increase with charged particle multiplicity for high-multiplicity events. These observations are qualitatively similar to those in pp collisions when selecting the same observed particle multiplicity, while the overall strength of the correlations is significantly larger in pPb collisions. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000314259500012 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213443]  |
| 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. Observation of long-range, near-side angular correlations in pPb collisions at the LHC[J]. PHYSICS LETTERS B,2013,718(3):795-814. |
| APA | CMS Collaboration.(2013).Observation of long-range, near-side angular correlations in pPb collisions at the LHC.PHYSICS LETTERS B,718(3),795-814. |
| MLA | CMS Collaboration."Observation of long-range, near-side angular correlations in pPb collisions at the LHC".PHYSICS LETTERS B 718.3(2013):795-814. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。