System size and energy dependence of near-side dihadron correlations
文献类型：期刊论文
| 作者 | Agakishiev, G.1; Aggarwal, M. M.30; Ahammed, Z.48; Alakhverdyants, A. V.1; Alekseev, I.16; Alford, J.18; Anderson, B. D.18; Anson, C. D.28; Arkhipkin, D.3; Averichev, G. S.1 |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2012-01-06 |
| 卷号 | 85 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.85.014903 |
| 文献子类 | Article |
| 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. |
| WOS关键词 | TRANSVERSE-MOMENTUM DISTRIBUTIONS ; NUCLEAR COLLISIONS ; AU+AU COLLISIONS ; D+AU COLLISIONS ; SPECTRA ; RIDGE ; P+P |
| 资助项目 | Science and Technology Facilities Council[ALICE] ; Science and Technology Facilities Council[ST/J000140/1] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000298924800003 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/47825]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Agakishiev, G. |
| 作者单位 | 1.Joint Inst Nucl Res, Dubna 141980, Russia 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Brookhaven Natl Lab, Upton, NY 11973 USA 4.Univ Calif Berkeley, Berkeley, CA 94720 USA 5.Univ Calif Davis, Davis, CA 95616 USA 6.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 7.Univ Estadual Campinas, BR-13083970 Campinas, SP, Brazil 8.Univ Illinois, Chicago, IL 60607 USA 9.Creighton Univ, Omaha, NE 68178 USA 10.Czech Tech Univ, FNSPE, CZ-11519 Prague, Czech Republic |
| 推荐引用方式 GB/T 7714 | Agakishiev, G.,Aggarwal, M. M.,Ahammed, Z.,et al. System size and energy dependence of near-side dihadron correlations[J]. PHYSICAL REVIEW C,2012,85. |
| APA | Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,Alakhverdyants, A. V..,Alekseev, I..,...&STAR Collaboration.(2012).System size and energy dependence of near-side dihadron correlations.PHYSICAL REVIEW C,85. |
| MLA | Agakishiev, G.,et al."System size and energy dependence of near-side dihadron correlations".PHYSICAL REVIEW C 85(2012). |
入库方式： OAI收割
来源：近代物理研究所
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