Measurement of D-0 Azimuthal Anisotropy at Midrapidity in Au plus Au Collisions at root S-NN=200 GeV
文献类型：期刊论文
| 作者 | Adamczyk, L; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Ajitanand, NN; Alekseev, I; Anderson, DM; Aoyama, R; Aparin, A |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2017 |
| 卷号 | 118期号:21页码:- |
| ISSN号 | 0031-9007 |
| DOI | 10.1103/PhysRevLett.118.212301 |
| 文献子类 | 期刊论文 |
| 英文摘要 | We report the first measurement of the elliptic anisotropy (v(2)) of the charm meson D-0 at midrapidity (broken vertical bar y broken vertical bar < 1) in Au + Au collisions at root S-NN = 200 GeV. The measurement was conducted by the STAR experiment at RHIC utilizing a new high- resolution silicon tracker. The measured D-0 v(2) in 0%-80% centrality Au + Au collisions can be described by a viscous hydrodynamic calculation for a transverse momentum (p(T)) of less than 4 GeV/c. The D-0 v(2) as a function of transverse kinetic energy (m(T) - m(0), where m(T) = root p(T)(2) + m(0)(2) p) is consistent with that of light mesons in 10%- 40% centrality Au + Au collisions. These results suggest that charm quarks have achieved local thermal equilibrium with the medium created in such collisions. Several theoretical models, with the temperature-dependent, dimensionless charm spatial diffusion coefficient (2 pi TDs) in the range of similar to 2-12, are able to simultaneously reproduce our D-0 v(2) result and our previously published results for the D-0 nuclear modification factor. |
| 语种 | 英语 |
| WOS记录号 | WOS:000402057800005 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/27372]  |
| 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 | Adamczyk, L,Adkins, JK,Agakishiev, G,et al. Measurement of D-0 Azimuthal Anisotropy at Midrapidity in Au plus Au Collisions at root S-NN=200 GeV[J]. PHYSICAL REVIEW LETTERS,2017,118(21):-. |
| APA | Adamczyk, L.,Adkins, JK.,Agakishiev, G.,Aggarwal, MM.,Ahammed, Z.,...&Zyzak, M.(2017).Measurement of D-0 Azimuthal Anisotropy at Midrapidity in Au plus Au Collisions at root S-NN=200 GeV.PHYSICAL REVIEW LETTERS,118(21),-. |
| MLA | Adamczyk, L,et al."Measurement of D-0 Azimuthal Anisotropy at Midrapidity in Au plus Au Collisions at root S-NN=200 GeV".PHYSICAL REVIEW LETTERS 118.21(2017):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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