The Radius Dependence of Elliptic Flow in Au+Au Non-Central Collisions at RHIC Energy

  • Non-central Au+Au collisions at sNN=200GeV are studied with the RQMD model. The dependence of elliptic flow on freezeout radius of final particles is analized. We find that elliptic flow increases with freezeout radius firstly,and then decreases, with a maximum value at the original size of the surface. The results show the different evolution of pressure gradient in different direction. The method to analyze the pressure gradient with mean radial velocity is used.
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FENG Qi-Chun, ZHANG Jing-Bo, HUO Lei and ZHANG Wei-Ning. The Radius Dependence of Elliptic Flow in Au+Au Non-Central Collisions at RHIC Energy[J]. Chinese Physics C, 2006, 30(7): 633-637.
FENG Qi-Chun, ZHANG Jing-Bo, HUO Lei and ZHANG Wei-Ning. The Radius Dependence of Elliptic Flow in Au+Au Non-Central Collisions at RHIC Energy[J]. Chinese Physics C, 2006, 30(7): 633-637. shu
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Received: 2005-10-31
Revised: 1900-01-01
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The Radius Dependence of Elliptic Flow in Au+Au Non-Central Collisions at RHIC Energy

    Corresponding author: ZHANG Jing-Bo,
  • Department of Physics, Harbin Institute of Technology, Harbin 150001, China

Abstract: Non-central Au+Au collisions at sNN=200GeV are studied with the RQMD model. The dependence of elliptic flow on freezeout radius of final particles is analized. We find that elliptic flow increases with freezeout radius firstly,and then decreases, with a maximum value at the original size of the surface. The results show the different evolution of pressure gradient in different direction. The method to analyze the pressure gradient with mean radial velocity is used.

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