Isospin Dependence of Balance Energy in Heavy Ion Reactions

Abstract

The present work deals with the theoretical study of Transverse flow, which develops because of different particles deflected sideward from the hot and dense region formed by the overlap of projectile and target nuclei. The study of transverse flow provides valuable data on the nuclear equation of state and isospin dependent N-N cross section. Study of dependence of transverse flow on beam energies, mass number, isospin and impact parameter have revealed quite interesting physics about the properties and origin of collective flow. At intermediate energies, the transverse flow disappears at certain incident energy, termed as balance energy E_bal. This phenomenon has been well established by many experiments during last decade. Simultaneously, much theoretical work has been devoted to understand the mechanism responsible for disappearance of transverse flow at balance energy and the isospin dependance of balance energy for 26Fi58+26Fi58 and 28Ni58+28Ni58 systems at different energies and different impact parameters. Here we have used isospin-dependent quantum molecular dynamical model (IQMD) for the present study.