Reexamining the "finite-size" effects in isobaric yield ratios using a statistical abrasion-ablation model

Abstract

The "finite-size" effects in the isobaric yield ratio (IYR), which are shown in the standard grand-canonical and canonical statistical ensembles (SGC/CSE) method, is claimed to prevent obtaining the actual values of physical parameters. The conclusion of SGC/CSE maybe questionable for neutron-rich nucleus induced reaction. To investigate whether the IYR has "finite-size" effects, the IYR for the mirror nuclei [IYR(m)] are reexamined using a modified statistical abrasion-ablation (SAA) model. It is found when the projectile is not so neutron-rich, the IYR(m) depends on the isospin of projectile, but the size dependence can not be excluded. In reactions induced by the very neutron-rich projectiles, contrary results to those of the SGC/CSE models are obtained, i.e., the dependence of the IYR(m) on the size and the isospin of the projectile is weakened and disappears both in the SAA and the experimental results.

5 pages and 4 figures

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Cited by in corpus (4)

• Shannon Information Entropy in Heavy-ion Collisions
• Neutron-skin effects in isobaric yield ratio for mirror nuclei in statistical abrasion-ablation model
• Determination of neutron-skin thickness using configurational information entropy
• Isobaric yield ratio difference between the 140 $A$ MeV ${}^{58,64}$Ni + ${}^9$Be reactions studied by antisymmetric molecular dynamics model