Distributions of Realative Momentum of Pion Pairs in Relativistic Heavy Ion Collisions

CHEN Xiao-Fan; CHEN Zhi-Lai; YANG Xue-Dong; LI Zhu-Peng

Chinese Physics C> 2001, Vol. 25> Issue(10) : 1002-1005

Distributions of Realative Momentum of Pion Pairs in Relativistic Heavy Ion Collisions

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

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The distributions of the relative momentum of correlated and uncorrelated pion pairs are given. The relations between the parameters of elliptical and spherical pion sources are obained by using the distribution of the relative momentum of correlated pion pairs, and comparison is made with the experimental result of central relativistic heavy ion collisions 1. 8A GeV Ar+Pb. For higher tem- perature, the distribution of single-pion momentum p₁(p)=N·exp(- m2+p2/T) should be used to obtain the results.

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CHEN Xiao-Fan, CHEN Zhi-Lai, YANG Xue-Dong and LI Zhu-Peng. Distributions of Realative Momentum of Pion Pairs in Relativistic Heavy Ion Collisions[J]. Chinese Physics C, 2001, 25(10): 1002-1005.

CHEN Xiao-Fan, CHEN Zhi-Lai, YANG Xue-Dong and LI Zhu-Peng. Distributions of Realative Momentum of Pion Pairs in Relativistic Heavy Ion Collisions[J]. Chinese Physics C, 2001, 25(10): 1002-1005. shu

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Received: 2000-08-08
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

Distributions of Realative Momentum of Pion Pairs in Relativistic Heavy Ion Collisions

Corresponding author: CHEN Xiao-Fan,

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

Received Date: 2000-08-08

Accepted Date: 1900-01-01

Available Online: 2001-10-05

Abstract: The distributions of the relative momentum of correlated and uncorrelated pion pairs are given. The relations between the parameters of elliptical and spherical pion sources are obained by using the distribution of the relative momentum of correlated pion pairs, and comparison is made with the experimental result of central relativistic heavy ion collisions 1. 8A GeV Ar+Pb. For higher tem- perature, the distribution of single-pion momentum p₁(p)=N·exp(- m2+p2/T) should be used to obtain the results.

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Distributions of Realative Momentum of Pion Pairs in Relativistic Heavy Ion Collisions

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