2012/05/08 by Yingxun Zhang, Zhuxia Li, Chengshuang Zhou +1
Physics and Astronomy · #High-Energy Particle Collisions Research #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1103/physrevc.85.051602
12 pages, 5 figures, 1 table, submitted to PRC rapid commu
arxiv created 2012/05/08 · openalex publication_date 2012/05/22 · arxiv updated 2015/06/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We introduce isospin dependence in the cluster recognition algorithms used in the quantum molecular dynamics model to describe fragment formation in heavy ion collisions. This change reduces the yields of emitted nucleons and enhances the yields of fragments, especially heavier fragments. The enhancement of neutron-rich lighter fragments mainly occurs at midrapidity. Consequently, isospin-dependent observables, such as isotope distributions, yield ratios of n/p, t/3He, and isoscaling parameters are affected. We also investigate how equilibration in heavy ion collisions is affected by this change.