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

FENG Qi-Chun; ZHANG Jing-Bo; HUO Lei; ZHANG Wei-Ning

Chinese Physics C> 2006, Vol. 30> Issue(7) : 633-637

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

Department of Physics, Harbin Institute of Technology, Harbin 150001, China

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Abstract：
Non-central Au+Au collisions at s_NN=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.

References

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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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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 2005-10-31
Accepted Date: 1900-01-01
Available Online: 2006-07-05

Abstract: Non-central Au+Au collisions at s_NN=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.