Isoscaling behavior in the Isospin dependent Quantum Molecular Dynamics   model
  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 $C_{sym}$. 
W. D. Tian, Y. G. Ma, X. Z. Cai, J. G. Chen, J. H. Chen, D. Q. Fang,   W. Guo, C. W. Ma, G. L. Ma, W. Q. Shen, K. Wang, Y. B...