Transverse Motion Correlation of Collective Flow in Relativistic Heavy Ion Collisions

Liu Yiming; Zhang Weigang; Huo Lei; Wang Shan; D. Keane; S. Y. Chu; S. Y. Fung

Chinese Physics C> 1994, Vol. 18> Issue(S2) : 167-174

Transverse Motion Correlation of Collective Flow in Relativistic Heavy Ion Collisions

Liu Yiming ¹ ,
Zhang Weigang ¹ ,
Huo Lei ¹ ,
Wang Shan ¹ ,
D. Keane ² ,
S. Y. Chu ³ ,
S. Y. Fung ³

1. Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang, China;
2. Department of Physics, Kent State University, Kent, Ohio, U. S. A.;
3. Department of Physics, University of California, Riverside, California, U. S. A.

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With 4π data for 1.2 A GeV Ar+BaI₂ and 2.1 A GeV Ne+NaF collisions at the Bevalac streamer chamber, the transverse motion correlations arising from collective flow are studied, which include azimuthal correlations of particle distribution and correlations of transverse momentum magnitude. The azimuthal correlations of particle distribution, the correlations of transverse momentum magnitude and transverse motion in collisions of Ar-f-BaI₂ are stronger than the corresponding ones in collisions of Ne+NaF respectively. Comparing with the correlations of transverse momentum magnitude, the azimuthal correlations of particle distribution dominate correlations of transverse motion in two experimental data samples.
- collective flow ,
- transverse motion correlations ,
- azimuthal correlations of particle distribution ,
- correlations of transverse momentum magnitude

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Liu Yiming, Zhang Weigang, Huo Lei, Wang Shan, D. Keane, S. Y. Chu and S. Y. Fung. Transverse Motion Correlation of Collective Flow in Relativistic Heavy Ion Collisions[J]. Chinese Physics C, 1994, 18(S2): 167-174.

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Received: 1993-04-14

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Supported by the National Natural Science Foundation of China, the US Department of Energy, and the US National Science Foundation.

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Transverse Motion Correlation of Collective Flow in Relativistic Heavy Ion Collisions

1. Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang, China;
2. Department of Physics, Kent State University, Kent, Ohio, U. S. A.;
3. Department of Physics, University of California, Riverside, California, U. S. A.

Received Date: 1993-04-14

Fund Project: Supported by the National Natural Science Foundation of China, the US Department of Energy, and the US National Science Foundation.

Abstract: With 4π data for 1.2 A GeV Ar+BaI₂ and 2.1 A GeV Ne+NaF collisions at the Bevalac streamer chamber, the transverse motion correlations arising from collective flow are studied, which include azimuthal correlations of particle distribution and correlations of transverse momentum magnitude. The azimuthal correlations of particle distribution, the correlations of transverse momentum magnitude and transverse motion in collisions of Ar-f-BaI₂ are stronger than the corresponding ones in collisions of Ne+NaF respectively. Comparing with the correlations of transverse momentum magnitude, the azimuthal correlations of particle distribution dominate correlations of transverse motion in two experimental data samples.