Chinese Physics C > 1997, Vol. 21 > Issue(S3): 51-56

Influence of Central Collective Flow on Charged Particle Correlation Functions

1. Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China;
2. Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai, China

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Abstract：
Influence of the central collective flow on a two-particle correlation function is discussed. The Monte Carlo calculation was used to describe how the single-particle and two-particle spectra from a hot emission source are affected by the central collective flow. The two-proton correlation function for the 100 MeV/u Ni+Ni system at b=0 fm was calculated using the QMD model. The particle interchange method was developed and used to prove the existence of a central collective flow in central collisions of the 100 MeV/u Ni+Ni system. The results show that the two-particle correlation functions are indeed sensitive to the central collective flow. This might provide a method to study the central collective flow formed in central collisions for medium heavy system at energies above 100 MeV/u.
- charged particle correlation function,
- central collision,
- central collective flow,
- QMD model

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Xi Hongfei, Zhu Yongtai, Shen Wenqing and Wei Zhiyong. Influence of Central Collective Flow on Charged Particle Correlation Functions[J]. Chinese Physics C, 1997, 21(S3): 51-56.

Xi Hongfei, Zhu Yongtai, Shen Wenqing and Wei Zhiyong. Influence of Central Collective Flow on Charged Particle Correlation Functions[J]. Chinese Physics C, 1997, 21(S3): 51-56. shu

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Received: 1996-06-26

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Supported by the National Natural Science Foundation of China.

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Influence of Central Collective Flow on Charged Particle Correlation Functions

1. Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China;
2. Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences, Shanghai, China

Received Date:1996-06-26

Fund Project:Supported by the National Natural Science Foundation of China.

Abstract:Influence of the central collective flow on a two-particle correlation function is discussed. The Monte Carlo calculation was used to describe how the single-particle and two-particle spectra from a hot emission source are affected by the central collective flow. The two-proton correlation function for the 100 MeV/u Ni+Ni system atb=0 fm was calculated using the QMD model. The particle interchange method was developed and used to prove the existence of a central collective flow in central collisions of the 100 MeV/u Ni+Ni system. The results show that the two-particle correlation functions are indeed sensitive to the central collective flow. This might provide a method to study the central collective flow formed in central collisions for medium heavy system at energies above 100 MeV/u.