The deexcitation of single excited ^(112) Sn nuclei at T = 1–30 MeV is simulated using the isospin-dependent quantum molecular dynamics(IQMD) model and GEMINI model. The fragmentation mechanism, critical behavior,and...The deexcitation of single excited ^(112) Sn nuclei at T = 1–30 MeV is simulated using the isospin-dependent quantum molecular dynamics(IQMD) model and GEMINI model. The fragmentation mechanism, critical behavior,and kinematic characteristics are investigated within these two models. The results show that the IQMD model can be applied to the analysis of fragmentation processes, critical points, and slope temperature extraction. The results of IQMD are generally consistent with experimental <M_(IMF)>- Z_(bound) data. However, GEMINI can reproduce the experimental data better than IQMD for isotopic distributions.展开更多
基金supported by the National Natural Science Foundation of China(Nos.11421505,11475244,and 11175231)the National Key Research and Development Program of China(High Precision Nuclear Physics Experiments)
文摘The deexcitation of single excited ^(112) Sn nuclei at T = 1–30 MeV is simulated using the isospin-dependent quantum molecular dynamics(IQMD) model and GEMINI model. The fragmentation mechanism, critical behavior,and kinematic characteristics are investigated within these two models. The results show that the IQMD model can be applied to the analysis of fragmentation processes, critical points, and slope temperature extraction. The results of IQMD are generally consistent with experimental <M_(IMF)>- Z_(bound) data. However, GEMINI can reproduce the experimental data better than IQMD for isotopic distributions.
