Incomplete-Fusion-Fragmentation Model and Nuclear Liquid-Gas Phase Transition

Wang Hui; Zheng Yuming; Sa Benhao; Zhang Xiaoze

Chinese Physics C> 1997, Vol. 21> Issue(S2) : 39-46

Incomplete-Fusion-Fragmentation Model and Nuclear Liquid-Gas Phase Transition

China Institute of Atomic Energy, Beijing, China

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Abstract：
The incomplete-fusion-fragmentation model is used to analyze the fragmentation of the projectile remnant in the 600 MeV/uAu+Au reaction. The theoretical results of the mass number, the excitation energy, and the thermodynamic temperature of the projectile remnant agree well with experimental data. The backbending structure in the curve of temperature as a function of the excitation energy per nucleon, i.e., the evidence of liquid-gas phase transition, is reproduced and related to the decay mode transformation from the dominance of the multifragmentation mode to the vaporization mode.
- ALADIN multifragmentation data ,
- projectile remnant ,
- decay modes ,
- thermodynamical temperature ,
- liquid-gas phase transition

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Wang Hui, Zheng Yuming, Sa Benhao and Zhang Xiaoze. Incomplete-Fusion-Fragmentation Model and Nuclear Liquid-Gas Phase Transition[J]. Chinese Physics C, 1997, 21(S2): 39-46.

Wang Hui, Zheng Yuming, Sa Benhao and Zhang Xiaoze. Incomplete-Fusion-Fragmentation Model and Nuclear Liquid-Gas Phase Transition[J]. Chinese Physics C, 1997, 21(S2): 39-46. shu

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Received: 1995-12-13

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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

Incomplete-Fusion-Fragmentation Model and Nuclear Liquid-Gas Phase Transition

China Institute of Atomic Energy, Beijing, China

Received Date: 1995-12-13

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

Abstract: The incomplete-fusion-fragmentation model is used to analyze the fragmentation of the projectile remnant in the 600 MeV/uAu+Au reaction. The theoretical results of the mass number, the excitation energy, and the thermodynamic temperature of the projectile remnant agree well with experimental data. The backbending structure in the curve of temperature as a function of the excitation energy per nucleon, i.e., the evidence of liquid-gas phase transition, is reproduced and related to the decay mode transformation from the dominance of the multifragmentation mode to the vaporization mode.