Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2013, Vol. 24 ›› Issue (3): 030501 doi: 10.13538/j.1001-8042/nst.2013.03.004


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

WANG Jia1,2  MA Yugang ZHANG Guoqiang1  FANG Deqing1  HAN Lixin1,2  SHEN Wenqing1   

  1. 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Jiading campus, Shanghai 201800, China
    2University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2013-03-08
  • Contact: MA Yugang
  • Supported by:

    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)

WANG Jia, MA Yugang, ZHANG Guoqiang, FANG Deqing, HAN Lixin, SHEN Wenqing. Initial fluctuation effect on elliptic flow in Au+Au collision at 1 GeV/A.Nuclear Science and Techniques, 2013, 24(3): 030501     doi: 10.13538/j.1001-8042/nst.2013.03.004


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.


Key words: Elliptic flow, Initial fluctuation, IQMD, Event plane method, Au+Au collision at 1 GeV/A