| Spatial anisotropy: a method to study anisotropic flow in heavy ion collisions |
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| 作者姓名： | 崔相利 吕龑 汪晓莲 彭茹 |
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| 作者单位： | 1. University of Science and Technology of China, Hefei 230026, China;;2. Wuhan University of Science and Technology, Wuhan 430070, China |
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| 基金项目： | Knowledge Innovation Program of Chinese Academy of Sciences，NSFC，Sub-topics of 973 for Ministry of Science and Technology，Key Laboratory of Quark and Lepton Physics，Ministry of Education |
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| 摘 要： | We introduce a method to study anisotropic flow parameter vn as a collective probe to Quark Gluon Plasma in relativistic heavy ion collisions. The emphasis is put on the use of the Fourier expansion of initial spatial azimuthal distributions of participant nucleons in the overlapped region. The coefficients εn of Fourier expansion are called the spatial anisotropy parameter for the n-th harmonic. We propose that collective dynamics can be studied by vn/εn. In this paper, we will discuss in particular the second (n=2) and the fourth (n=4) harmonics.
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| 关 键 词： | 相对论重离子碰撞 各向异性参数 空间方位 夸克胶子等离子体 傅立叶展开 n次谐波 参与者 重叠区 |
| 收稿时间： | 2010-7-21 |
| 修稿时间： | 2010-11-16 |
Spatial anisotropy： a method to study anisotropic flow in heavy ion collisions |
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| CUI Xiang-Li,LU Yan,WANG Xiao-Lian,PENG Ru.Spatial anisotropy: a method to study anisotropic flow in heavy ion collisions[J].High Energy Physics and Nuclear Physics,2011,35(5):471-474. |
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| Authors: | CUI Xiang-Li LU Yan WANG Xiao-Lian PENG Ru |
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| Institution: | [1]University of Science and Wechnology of China, Hefei 230026, China [2]Wuhan University of Science and Technology, Wuhan 430070, China |
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| Abstract: | |
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| Keywords: | Fourier expansion spatial anisotropy parameter collective dynamics thermalization |
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