Isoscaling of projectile-like fragments

Abstract

The isotopic and isotonic distributions of the projectile fragmentation products have been simulated by a modified statistical abrasion-ablation (SAA) model and the isoscaling behavior of projectile-like fragments has been discussed. The isoscaling parameters $\alpha$ and $\beta$ for hot fragments before evaporation and cold fragments after evaporation have been extracted, respectively. It looks that the evaporation has strong effect on $\alpha$. For cold fragments, a monotonic increase of $\alpha$ and $|\beta |$ with the increasing of $Z$ and $N$ is observed. The relation between isoscaling parameter and the change of isospin content is demonstrated. In addition, the disappearance of the isospin effect of projectile fragmentation is also discussed in the viewpoint of isoscaling parameter.

4 pages, 4 figures

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• Evolution of the symmetry energy of hot neutron-rich matter formed in heavy-ion reactions
• Isospin effect in the statistical sequential decay
• Scaling of Anisotropic Flows and Nuclear Equation of State in Intermediate Energy Heavy Ion Collisions
• Density dependence of the "symmetry energy" in the lattice gas model