<i>n</i>-Particle Transverse Correlation and Collectivity for 1.2 <i>A</i> GeV Ar + KC1 Collisions

Liu Qingjun; Jiang Yuzhen; Wang Shan; Liu Yiming; J. Jiang; D. Keane; Y. Shao; S. Y. Chu; S. Y. Fung

Chinese Physics C> 1993, Vol. 17> Issue(S3) : 291-296

n-Particle Transverse Correlation and Collectivity for 1.2 A GeV Ar + KC1 Collisions

Liu Qingjun ¹ ,
Jiang Yuzhen ¹ ,
Wang Shan ¹ ,
Liu Yiming ¹ ,
J. Jiang ² ,
D. Keane ² ,
Y. Shao 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, USA;
3 Department of Physics, University of California, Riverside, California, USA

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Abstract：
An n-particle transverse correlation function for analysis collective flow is proposed, which extends the study of n-particle azimuthal correlations and the estimation of collectivity to include the effects of both magnitude and angle for the n-particle transverse momentum vectors. This method is more sensitive to the collectivity of collective flow than the method based on multi-particle azimuthal correlations. Using the new method, n-particle transverse correlations are analyzed for collisions of 1.2 A GeV Ar + KC1 in the Bevalac streamer chamber, and the results have been compared with a Monte Carlo simulation, which show that the collectivity for this experiment is between 85% and 95%.

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Liu Qingjun, Jiang Yuzhen, Wang Shan, Liu Yiming, J. Jiang, D. Keane, Y. Shao, S. Y. Chu and S. Y. Fung. n-Particle Transverse Correlation and Collectivity for 1.2 A GeV Ar + KC1 Collisions[J]. Chinese Physics C, 1993, 17(S3): 291-296.

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Received: 1991-11-02

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沈阳化工大学材料科学与工程学院沈阳 110142

n-Particle Transverse Correlation and Collectivity for 1.2 A GeV Ar + KC1 Collisions

1 Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang, China;
2 Department of Physics, Kent State University, Kent, Ohio, USA;
3 Department of Physics, University of California, Riverside, California, USA

Received Date: 1991-11-02

Abstract: An n-particle transverse correlation function for analysis collective flow is proposed, which extends the study of n-particle azimuthal correlations and the estimation of collectivity to include the effects of both magnitude and angle for the n-particle transverse momentum vectors. This method is more sensitive to the collectivity of collective flow than the method based on multi-particle azimuthal correlations. Using the new method, n-particle transverse correlations are analyzed for collisions of 1.2 A GeV Ar + KC1 in the Bevalac streamer chamber, and the results have been compared with a Monte Carlo simulation, which show that the collectivity for this experiment is between 85% and 95%.