Influence of Central Collective Flow on Charged Particle Correlation Functions

Xi Hongfei; Zhu Yongtai; Shen Wenqing; Wei Zhiyong

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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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 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.