Chinese Physics C > 2001, Vol. 25 > Issue(12): 1184-1190

Directed and Elliptic Flow in Heavy Ion Collisions

Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai 201800, China2 Department of Physics, Ningbo University, Ningbo 315000, China3 Department of Electron Engineering, East China Normal University, Shanghai 200062, China

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Abstract：
The directed and elliptic flow in collisions of ⁴⁰Ca+ ⁴⁰Ca at energies from 30MeV/nucleon to 150MeV/nucleon is well studied in an isospin-dependent quantum molecule dynamics model (IQMD). With increasing incident energy, the directed flow rises from the negative to the positive and the elliptic flow shows decrease with increasing incident energy. The directed flow and the elliptic flow are sensible of the impact parameter and incident energy but they are not very sensible of systematic energy. The directed flow and the elliptic flow are also not very sensible of the EOS because of the combined systematic mass. Systematic studies of the cluster mass dependence are also carefully performed and the elliptic flow of heavy cluster mass is larger than that of light cluster mass. The difference of elliptic flow between the heavy cluster mass and the light one will be not very obvious with increasing incident energy because of large number of light cluster mass.

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ZHANG Hu-Yong, MA Yu-Gang, YU Li-Ping, SHEN Wen-Qing, CAI Xiang-Zhou, FANG De-Qing, HU Peng-Yun, ZHONG Chen and HAN Ding-Ding. Directed and Elliptic Flow in Heavy Ion Collisions[J]. Chinese Physics C, 2001, 25(12): 1184-1190.

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Received: 2000-12-22
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Directed and Elliptic Flow in Heavy Ion Collisions

Corresponding author:ZHANG Hu-Yong,

Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai 201800, China2 Department of Physics, Ningbo University, Ningbo 315000, China3 Department of Electron Engineering, East China Normal University, Shanghai 200062, China

Received Date:2000-12-22

Accepted Date:1900-01-01

Available Online:2001-12-05

Abstract:The directed and elliptic flow in collisions of⁴⁰Ca+⁴⁰Ca at energies from 30MeV/nucleon to 150MeV/nucleon is well studied in an isospin-dependent quantum molecule dynamics model (IQMD). With increasing incident energy, the directed flow rises from the negative to the positive and the elliptic flow shows decrease with increasing incident energy. The directed flow and the elliptic flow are sensible of the impact parameter and incident energy but they are not very sensible of systematic energy. The directed flow and the elliptic flow are also not very sensible of the EOS because of the combined systematic mass. Systematic studies of the cluster mass dependence are also carefully performed and the elliptic flow of heavy cluster mass is larger than that of light cluster mass. The difference of elliptic flow between the heavy cluster mass and the light one will be not very obvious with increasing incident energy because of large number of light cluster mass.

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Directed and Elliptic Flow in Heavy Ion Collisions

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