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Initial fluctuation effect on elliptic flow in Au+Au collision at 1 GeV/A

ISSN号：1001-8042
期刊名称：Nuclear Science and Techniques
时间：2013.6.20
页码：030501-
分类：O441[理学—电磁学;理学—物理] TU473.1[建筑科学—结构工程;建筑科学—土工工程]
作者机构：[1]Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading campus, Shanghai 201800, China, [2]University of Chinese Academy of Sciences, Beo'ing 100049, China
相关基金：Supported by National Natural Science Foundation of China （Nos.11220101005, 11035009, 10979074 and 11205230） and Major State Basic Research Development Program in China （No.2013CB834405）
相关项目：基于STAR-TOF探测器上的能量扫描和强相互作用性质的实验研究

关键词：波动影响, 椭圆流, 伏特, 电子, 量子分子动力学, 碰撞, 流量计算, 空间实验, Elliptic flow, Initial fluctuation, IQMD, Event plane method, Au＋Au collision at 1 GeV/A

中文摘要：

How the initial fluctuation affects on the elliptic flow is investigated by investigating the rapidity, transverse 4-velocity, centrality dependencies of elliptic flow for Au+Au at 1 GeV/A with the help of an Isospin Quantum Molecular Dynamics (IQMD). In addition, we compare the flow calculated with respect to participant plane created by the initial geometry in coordinate space with the flow reconstructed by the experimental event-plane method, and compare the flow with the experimental data of the FOPI collaboration. It shows that there exists some discrepancy between the flows reconstructed by the above two methods.

英文摘要：

How the initial fluctuation affects on the elliptic flow is investigated by investigating the rapidity, transverse 4-velocity, centrality dependencies of elliptic flow for Au＋Au at 1 GeV/A with the help of an Isospin Quantum Molecular Dynamics （IQMD）. In addition, we compare the flow calculated with respect to participant plane created by the initial geometry in coordinate space with the flow reconstructed by the experimental event-plane method, and compare the flow with the experimental data of the FOPI collaboration. It shows that there exists some discrepancy between the flows reconstructed by the above two methods.