Two-particle angular correlations in heavy ion collisions from a multiphase transport model
文献类型：期刊论文
| 作者 | Zhang, LY; Chen, JH; Lin, ZW; Ma, YG; Zhang, S |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2019 |
| 卷号 | 99期号:5页码:— |
| 关键词 | QUARK-GLUON PLASMA PERSPECTIVE MATTER |
| ISSN号 | 2469-9985 |
| DOI | 10.1103/PhysRevC.99.054904 |
| 文献子类 | 期刊论文 |
| 英文摘要 | We extend our earlier study on two-particle angular correlations in pp collisions at low transverse momentum (p(T)) to p-Pb, Pb-Pb, and Au-Au collisions at BNL Relativistic Heavy Ion Collider and CERN Large Hadron Collider energies. We mainly use the string melting version of a multiphase transport model with improved quark coalescence for this study. We start from the analysis of pi(+/-), K-+/-, and p((p) over bar) p(T) and rapidity distributions at different centralities. We then focus on two-particle angular correlations in p-Pb collisions at root s(NN) = 5.02 TeV and Pb-Pb collisions at root s(NN) = 2.76 TeV. For p-Pb collisions, a near side depression in the angular correlation is observed for low p(T) proton pairs and Lambda pairs but not for pion pairs or kaon pairs, similar to our earlier finding for pp collisions at root s = 7 TeV. This is also the case for very low multiplicity Pb-Pb and Au-Au collisions. We also find that parton interactions and the improved quark coalescence are mainly responsible for the depression feature in baryon pair angular correlations. However, no such baryon-baryon anticorrelations are observed in Pb-Pb and Au-Au collisions at higher multiplicities. Therefore our results suggest that low p(T) baryon-baryon angular anticorrelations have a strong multiplicity dependence. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31891]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Fudan Univ, Inst Modern Phys, Shanghai 200433, Peoples R China; 4.Fudan Univ, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China; 5.East Carolina Univ, Dept Phys, Greenville, NC 27858 USA; 6.Cent China Normal Univ, Key Lab Quarks & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China; 7.Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, LY,Chen, JH,Lin, ZW,et al. Two-particle angular correlations in heavy ion collisions from a multiphase transport model[J]. PHYSICAL REVIEW C,2019,99(5):—. |
| APA | Zhang, LY,Chen, JH,Lin, ZW,Ma, YG,&Zhang, S.(2019).Two-particle angular correlations in heavy ion collisions from a multiphase transport model.PHYSICAL REVIEW C,99(5),—. |
| MLA | Zhang, LY,et al."Two-particle angular correlations in heavy ion collisions from a multiphase transport model".PHYSICAL REVIEW C 99.5(2019):—. |
入库方式： OAI收割
来源：上海应用物理研究所
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。