Influence of the constant and density-dependent scaling of the scattering cross-section on reaction dynamics

Abstract

We investigate the relative effect of constant scaling and density-dependent scaling of the energy-dependent cross-sections on the dynamics of heavy-ion collisions. We carried out our calculations using the isospin-dependent quantum molecular dynamics (IQMD) model and study various observables/non-observables such as collision rate, participant matter, directed transverse flow and its disappearance, nuclear stopping, fragmentation pattern, baryonic entropy, etc. Our investigations indicate that the method used to scale the cross-sections has a sizeable effect on the directed transverse flow and its disappearance in the entire energy range, and on nuclear stopping at higher beam energies only. On the other hand, the rest of the quantities (one-body as well as many-body) remain almost insensitive.