Isoscaling behavior in the Fission Dynamics

Abstract

The fission processes of ${}^{112}$Sn + ${}^{112}$Sn and ${}^{116}$Sn + ${}^{116}$Sn are simulated with the combination of the Langevin equation and the statistical decay model. The masses of two fission fragments are given by assuming the process of symmetric fission or asymmetric fission by the Monte Carlo sampling with the Gaussian probability distribution. From the analysis to the isotopic/isotonic ratios of the fission fragments from both reactions, the isoscaling behavior has been observed and investigated in details. Isoscaling parameters $\alpha$ and $\beta$ are extracted as a function of the charge number and neutron number, respectively, in different width of the sampling Gaussian probability distribution. It seems that $\alpha$ is sensitive to the width of fission probability distribution of the mass asymmetrical parameter but $\beta$ is not. Both $\alpha$ and $\beta$ drop with the increasing of beam energy and the reduced friction parameter.

arXiv comment11 pages, 13 figures (two figures were added). Accepted by the Physical Review C

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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 density dependence of symmetry energy via multifragmentation at sub-saturation densities
• Evolution of the symmetry energy of hot neutron-rich matter formed in heavy-ion reactions
• 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
• Systematic study of isoscaling behavior in projectile fragmentation by the statistical abrasion-ablation model
• Isospin effect in the statistical sequential decay
• Isotopic ratio, isotonic ratio, isobaric ratio and Shannon information uncertainty
• 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
• Dynamical and sequential decay effects on isoscaling and density dependence of the symmetry energy