1. Isoscaling Behaviour in the Isospin-Dependent Quantum Molecular Dynamics Model
- Author
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DQ（方德清） Fang, Y. B. Wei, C. W. Ma, C. Zhong, Wendong Tian, Y. G. Ma, Jing-Han Chen, J. G. Chen, Kun Wang, Wen-Qing Shen, T. Z. Yan, Guo-Liang Ma, W. Guo, J. X. Zuo, and Xiangzhou Cai
- Subjects
Physics ,Nuclear Theory ,FOS: Physical sciences ,General Physics and Astronomy ,Quantum molecular dynamics ,Entrance channel ,Nuclear Theory (nucl-th) ,Potential difference ,Isospin ,Nuclear Experiment (nucl-ex) ,Impact parameter ,Atomic physics ,Nuclear Experiment - Abstract
The isoscaling behavior is investigated in the frame of Isospin dependent Quantum Molecular Dynamics (IQMD) models. The isotopic yields ratio $Y_2$/$Y_1$ for reactions $^{48}Ca$+$^{48}Ca$ and $^{40}Ca+^{40}Ca$ at different entrance channels are simulated and presented, the relationship between the isoscaling parameter and the entrance channel is analyzed, the results show that $\alpha$ and $\beta$ reduce with the rise of incident energies and increase with the impact parameter b, which can be attributed to the temperature varying of the pre-fragments in different entrance channels. The relation of $\alpha$ and symmetry-term coefficient $C_{sym}$ reveals that the chemical potential difference $\triangle\mu$ is sensitive to the symmetry-term coefficient $C_{sym}$., Comment: 4 pages, 4 figures; revised version to Chinese Physics Letters
- Published
- 2005