Behavior of Individual Nucleon in Intermediate Energy Heavy Ion Reactions

Li Junqing; Yuan Xiuqing; Liu Jianye; Zhu Jieding

Chinese Physics C> 1996, Vol. 20> Issue(9) : 839-846

Behavior of Individual Nucleon in Intermediate Energy Heavy Ion Reactions

Institute of Modem Physics,The Chinese Academy of Science,Lanzhou 7300001 Department of Modern Physics,Lanzhou University,Lanzhou 730000

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Abstract：
In the framework of Quantum Molecular Dynamics model the individual nucleon behavior(regular or chaotic)in the intermediate energy heavy ion reactions is investigated.The correlation between the nucleon behavior and the reaction fragmentation mechanism is analysed.The nucleon motion in the evolution process of a compound nuclear system showed regular behavior.The coexistance of the regular trajectories and the chaotic ones suggests that the regular regions in the interaction area embed in irregular ones,reflecting the fractal nature of the repellor,and indicating the existance of local stable potential generated by intermediate mass fragment.The appearance of more instable trajectories associated with the decreasing number of nucleon and small cluster emission.The chaotic nucleon motion began earlier than the time when the system may reach the region of mechanical instability characterized by equation of state of nuclear matter.

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[2]	ZHAO Qiang , GUO Wen-Jun , LIU Jian-Ye , ZUO Wei , WANG Shun-Jin . Isospin Dependence of Preequilibrium Nucleon Emission in Intermediate Energy Heavy Ion Collision. Chinese Physics C, 2001, 25(3): 244-250.
[3]	ZHANG Hu-Yong , MA Yu-Gang , YU Li-Ping , SHEN Wen-Qing , CAI Xiang-Zhou , FANG De-Qing , HU Peng-Yun , ZHONG Chen , HAN Ding-Ding . Directed and Elliptic Flow in Heavy Ion Collisions. Chinese Physics C, 2001, 25(12): 1184-1190.
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Li Junqing, Yuan Xiuqing, Liu Jianye and Zhu Jieding. Behavior of Individual Nucleon in Intermediate Energy Heavy Ion Reactions[J]. Chinese Physics C, 1996, 20(9): 839-846.

Li Junqing, Yuan Xiuqing, Liu Jianye and Zhu Jieding. Behavior of Individual Nucleon in Intermediate Energy Heavy Ion Reactions[J]. Chinese Physics C, 1996, 20(9): 839-846. shu

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Received: 1900-01-01
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Behavior of Individual Nucleon in Intermediate Energy Heavy Ion Reactions

Corresponding author: Li Junqing,

Institute of Modem Physics,The Chinese Academy of Science,Lanzhou 7300001 Department of Modern Physics,Lanzhou University,Lanzhou 730000

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1996-09-05

Abstract: In the framework of Quantum Molecular Dynamics model the individual nucleon behavior(regular or chaotic)in the intermediate energy heavy ion reactions is investigated.The correlation between the nucleon behavior and the reaction fragmentation mechanism is analysed.The nucleon motion in the evolution process of a compound nuclear system showed regular behavior.The coexistance of the regular trajectories and the chaotic ones suggests that the regular regions in the interaction area embed in irregular ones,reflecting the fractal nature of the repellor,and indicating the existance of local stable potential generated by intermediate mass fragment.The appearance of more instable trajectories associated with the decreasing number of nucleon and small cluster emission.The chaotic nucleon motion began earlier than the time when the system may reach the region of mechanical instability characterized by equation of state of nuclear matter.

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Behavior of Individual Nucleon in Intermediate Energy Heavy Ion Reactions

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