Microscopic Study on Dynamic Barrier in Fusion Reactions

WU Xi-Zhen; TIAN Jun-Long; WANG Ning; ZHAO Kai; LI Zhu-Xia

Chinese Physics C> 2004, Vol. 28> Issue(12) : 1317-1323

Microscopic Study on Dynamic Barrier in Fusion Reactions

China Institute of Atomic Energy,Beijing 102413,China2 Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100080,China3 Center of Theoretical Nclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China

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Abstract：
in this paper we briefly review the fusion process of very heavy nuclear systems and some theoretical models. We propose a microscopic transport dynamic model, i.e. the improved Quantum Molecular Dynamic model, for describing fusion reactions of heavy systems, in which the dynamical behavior of the fusion barrier in heavy fusion systems has been studied firstly. We find that with the incident energy decreasing the lowest dynamic barrier is obtained which approaches to the adiabatic static barrier and with increase of the incident energy the dynamic barrier goes up to the diabatic static barrier. We also indicate that how the dynamical fusion barrier is correlated with the development of the configuration of fusion partners along the fusion path. Associating the single–particle potentials obtained at different stages of fusion with the Two center Shell Model,we can study the time evolution of the single particle states of fusion system in configuration space of single particle orbits along the fusion path.

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WU Xi-Zhen, TIAN Jun-Long, WANG Ning, ZHAO Kai and LI Zhu-Xia. Microscopic Study on Dynamic Barrier in Fusion Reactions[J]. Chinese Physics C, 2004, 28(12): 1317-1323.

WU Xi-Zhen, TIAN Jun-Long, WANG Ning, ZHAO Kai and LI Zhu-Xia. Microscopic Study on Dynamic Barrier in Fusion Reactions[J]. Chinese Physics C, 2004, 28(12): 1317-1323. shu

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Received: 2003-11-29
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

Microscopic Study on Dynamic Barrier in Fusion Reactions

Corresponding author: LI Zhu-Xia,

China Institute of Atomic Energy,Beijing 102413,China2 Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100080,China3 Center of Theoretical Nclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou,Lanzhou 730000,China

Received Date: 2003-11-29

Accepted Date: 1900-01-01

Available Online: 2004-12-05

Abstract: in this paper we briefly review the fusion process of very heavy nuclear systems and some theoretical models. We propose a microscopic transport dynamic model, i.e. the improved Quantum Molecular Dynamic model, for describing fusion reactions of heavy systems, in which the dynamical behavior of the fusion barrier in heavy fusion systems has been studied firstly. We find that with the incident energy decreasing the lowest dynamic barrier is obtained which approaches to the adiabatic static barrier and with increase of the incident energy the dynamic barrier goes up to the diabatic static barrier. We also indicate that how the dynamical fusion barrier is correlated with the development of the configuration of fusion partners along the fusion path. Associating the single–particle potentials obtained at different stages of fusion with the Two center Shell Model,we can study the time evolution of the single particle states of fusion system in configuration space of single particle orbits along the fusion path.

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Microscopic Study on Dynamic Barrier in Fusion Reactions

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