Multifragmentation and Fluctuation of Interaction Potential

Li Junqing; Yuan Xiuqing; Liu Jianye; Ge Linxiao; Liu Hang

Chinese Physics C> 1996, Vol. 20> Issue(S2) : 179-185

Multifragmentation and Fluctuation of Interaction Potential

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, China

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Abstract：
The variation of equipotential lines of interaction potential with time intuitively gives the information about the fluctuation of the potential in intermediate energy heavy ion collisions. At the early stage of collisions, the potential value in the central region of the system could be positive. The pursued irregular deformation of equipotential lines in the region, especially the appearance of the negative curvature of the equipotential lines, causes the chaotic nucleonic motion. The phase difference of the neighboring nucleons increases with time exponentially, and the phase space of nucleons therefore separates and causes the multifragmentation.
- multifragmentation ,
- equipotential lines ,
- chaotic motion

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Li Junqing, Yuan Xiuqing, Liu Jianye, Ge Linxiao and Liu Hang. Multifragmentation and Fluctuation of Interaction Potential[J]. Chinese Physics C, 1996, 20(S2): 179-185.

Li Junqing, Yuan Xiuqing, Liu Jianye, Ge Linxiao and Liu Hang. Multifragmentation and Fluctuation of Interaction Potential[J]. Chinese Physics C, 1996, 20(S2): 179-185. shu

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Received: 1995-02-22

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Supported by the National Natural Science Foundation of China and Science Foundation of the Chinese Academy of Sciences.

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沈阳化工大学材料科学与工程学院沈阳 110142

Multifragmentation and Fluctuation of Interaction Potential

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, China

Received Date: 1995-02-22

Fund Project: Supported by the National Natural Science Foundation of China and Science Foundation of the Chinese Academy of Sciences.

Abstract: The variation of equipotential lines of interaction potential with time intuitively gives the information about the fluctuation of the potential in intermediate energy heavy ion collisions. At the early stage of collisions, the potential value in the central region of the system could be positive. The pursued irregular deformation of equipotential lines in the region, especially the appearance of the negative curvature of the equipotential lines, causes the chaotic nucleonic motion. The phase difference of the neighboring nucleons increases with time exponentially, and the phase space of nucleons therefore separates and causes the multifragmentation.