System size and energy dependence of near-side dihadron correlations
文献类型：期刊论文
| 作者 | Agakishiev, G ; Aggarwal, MM ; Cai, XZ（蔡翔舟） ; Chen, JH（陈金辉） ; Han, LX ; Li, W ; Li, X ; Ma, GL（马国亮） ; Ma, YG（马余刚） ; Majka, R ; Shou, QY ; Tian, J（田健） ; Xue, L ; Zhang, S（张松） ; Zhao, J ; Zhong, C（钟晨） ; Zhu, YH ; Zoulkarneeva, Y |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2012 |
| 卷号 | 85期号:1 |
| ISSN号 | 0556-2813 |
| 英文摘要 | Two-particle azimuthal (Delta phi) and pseudorapidity (Delta eta) correlations using a trigger particle with large transverse momentum (p(T)) in d+Au, Cu+Cu, and Au+Au collisions at root s(NN) = 62.4 GeV and 200 GeV from the STAR experiment at the Relativistic Heavy Ion Collider are presented. The near-side correlation is separated into a jet-like component, narrow in both Delta phi and Delta eta, and the ridge, narrow in Delta phi but broad in Delta eta. Both components are studied as a function of collision centrality, and the jet-like correlation is studied as a function of the trigger and associated p(T). The behavior of the jet-like component is remarkably consistent for different collision systems, suggesting it is produced by fragmentation. The width of the jet-like correlation is found to increase with the system size. The ridge, previously observed in Au+Au collisions at root s(NN) = 200 GeV, is also found in Cu+Cu collisions and in collisions at root s(NN) = 62.4 GeV, but is found to be substantially smaller at root s(NN) = 62.4 GeV than at root s(NN) = 200 GeV for the same average number of participants (< N-part >). Measurements of the ridge are compared to models. |
| 语种 | 英语 |
| WOS记录号 | WOS:000298924800003 |
| 公开日期 | 2013-12-05 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/13308]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Agakishiev, G,Aggarwal, MM,Cai, XZ,et al. System size and energy dependence of near-side dihadron correlations[J]. PHYSICAL REVIEW C,2012,85(1). |
| APA | Agakishiev, G.,Aggarwal, MM.,Cai, XZ.,Chen, JH.,Han, LX.,...&Zoulkarneeva, Y.(2012).System size and energy dependence of near-side dihadron correlations.PHYSICAL REVIEW C,85(1). |
| MLA | Agakishiev, G,et al."System size and energy dependence of near-side dihadron correlations".PHYSICAL REVIEW C 85.1(2012). |
入库方式： OAI收割
来源：上海应用物理研究所
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