Isoscaling behavior in the Isospin dependent Quantum Molecular Dynamics model

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 $△\mu$ is sensitive to the symmetry-term coefficient $C_{sym}$.

4 pages, 4 figures; revised version to Chinese Physics Letters

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Cited by in corpus (14)

• Recent Progress and New Challenges in Isospin Physics with Heavy-Ion Reactions
• Isoscaling of projectile-like fragments
• Temperature effects on the nuclear symmetry energy and symmetry free energy with an isospin and momentum dependent interaction
• Probing isospin- and momentum-dependent nuclear effective interactions in neutron-rich matter
• Probing the Nuclear Symmetry Energy with Heavy-Ion Reactions Induced by Neutron-Rich Nuclei
• Isoscaling behavior in the Fission Dynamics
• Isobaric Yield Ratio Difference in Heavy-ion Collisions, and Comparison to Isoscaling
• Influence of statistical sequential decay on isoscaling and symmetry energy coefficient in a GEMINI simulation
• Dynamical dipole $\gamma$ radiation in heavy-ion collisions on the basis of the quantum molecular dynamics model
• Systematic study of isoscaling behavior in projectile fragmentation by the statistical abrasion-ablation model
• Isospin effect in the statistical sequential decay
• Reexamining the "finite-size" effects in isobaric yield ratios using a statistical abrasion-ablation model
• Density dependence of the "symmetry energy" in the lattice gas model
• Constraining the Skyrme effective interactions and the neutron skin thickness of nuclei using isospin diffusion data from heavy ion collisions