Systematic study of isoscaling behavior in projectile fragmentation by the statistical abrasion–ablation model

2006/01/31 by D. Q. Fang, Y. G. Ma, Y. G. +16 · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Atomic and Molecular Physics #High-pressure geophysics and materials #Nuclear physics research studies #nucl-ex #nucl-th

paper · pdf · doi:10.1088/0954-3899/34/10/007

published as J.Phys.G34:2173-2182,2007 · 10 pages, 6 figures

openalex publication_date 2007/09/12 · arxiv created 2007/09/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

The isospin effect and isoscaling behavior in projectile fragmentation have been systematically investigated by a modified statistical abrasion–ablation (SAA) model. The normalized peak differences and reduced isoscaling parameters are found to decrease with ( Z proj − Z )/ Z proj or the excitation energy per nucleon and have no significant dependence on the size of reaction systems. Assuming a Fermi-gas behavior, the excitation energy dependence of the symmetry energy coefficients is tentatively extracted from α and β which looks consistent with the experimental data. It is pointed out that the reduced isoscaling parameters can be used as an observable to study excitation extent of system and asymmetric nuclear equation of state in heavy ion collisions.

Citations

• Isotopic scaling of heavy projectile residues from the collisions of25MeV/nucleon 86Krwith124Sn,112Snand64Ni,58Ni
• Isospin influences on particle emission and critical phenomena in nuclear dissociation
• Isoscaling Behaviour in the Isospin-Dependent Quantum Molecular Dynamics Model
• Isoscaling studies of fission: A sensitive probe into the dynamics of scission
• Measurements of interaction cross sections and radii of He isotopes

Cited by

• Isobaric yield ratios in heavy-ion reactions, and symmetry energy of neutron-rich nuclei at intermediate energies