Analyzing density dependent symmetry energy and dynamics for mass-asymmetric heavy-ion reactions

We attempt to study the interplay of density-dependent symmetry energy and its impact on the dynamics evolved in intermediate energy mass-asymmetric reactions. The investigation includes the theoretical analysis of various mass-asymmetric heavy-ion reactions (keeping total mass the same) based on the microscopic isospin-dependent quantum molecular dynamical (IQMD) approach. We present the time evolution, colliding geometry (impact parameter), and excitation energy dependence (100 MeV nucleon(-1)-1 GeV nucleon(-1)) of the density and temperature reached during the collisions. The mass-asymmetry factor influences the reaction dynamics drastically at higher incident energies and central collisions. Owing to different density profiles, when subjected to different mass-asymmetry combinations, the role of density-dependent symmetry energy varies accordingly.