Nuclear Stopping in Mass Asymmetric Nuclear Collisions due to Isospin Momentum Dependent Interactions

Abstract

In the present study, nuclear stopping has been analyzed for the various mass asymmetric nuclear reactions (fixed target and different projectiles) under the influence of soft-momentumdependent (SMD) and isospin-soft-momentum dependent (ISMD) interactions. For this, the simulations have been carried out within the framework of Isospin-dependent Quantum Molecular Dynamics (IQMD) model for the reactions , 197 79 16 8 O Au , 197 79 32 16 S Au , 197 79 65 30 Zn Au , 197 79 118 50 Sn Au and Xe 197Au 79 131 54  at the different incident energies and over the whole colliding geometry. It has been revealed that the degree of nuclear stopping decreases for heavier charged fragments, and ISMD plays a significant role in the reactions induced by lighter projectile. Also, if one considers the anisotropy ratio due to neutrons and protons separately, ISMD has been found to play a considerable role for the reaction in the mid-rapidity region. This motivates one to further investigate the role of ISMD towards the various aspects of heavy ion collisions.