Fragment Comparative Study of DJBUU and SQMD with Na Isotope; [나트륨 동위원소 빔 중이온 충돌 모사에서 파편핵 생성 비교]

Abstract

In this research, we perform numerical simulations of 20Na+208Pb reactions to study heavy ion collisions with an isotope that will be produced at RAON accelerator. We use two different models, Daejeon Boltzmann-Uheling-Ulenbeck (DJBUU) transport model and Sindong Quantum Molecular Dynamics (SQMD) transport model. We compare fragments identified at the end of simulation time. We find that there are noticeable differences in the biggest fragment(BF) produced between DJBUU and SQMD. To describe heavy ion collisions more precisely, We discuss initial conditions in transport model simulation, such as distance between projectile and target nuclei, and improvement plans of each models. © 2024 The Korean Physical Society. All rights reserved.