Some aspects of heavy ion fusion-fission dynamics

Abstract

Study of heavy ion induced fusion-fission reactions at near and below barrier energies has attracted a great deal of attention in recent years, due to the observations of anomalous features in the fragment angular distributions for many target-projectile systems. Additionally there are also measurements of the fragment spin distributions and time-scales of the fusion-fission reactions, which have provided important information on the dynamics of these processes. In the present paper, the emphasis would be to highlight some of the recent experimental findings and their implications on the dynamics of the fusion-fission reactions in heavy ion collisions at near and above barrier energies.

Dynamical Simulation of Emission Angle Dependence of Fragments Spin in Heavy Ion Fusion–fission Reactions

“…[8][9][10] Some theoretical works have been done to study the spin carried out by fission fragments as a function of emission angle for a few sets of target and projectile. 11 The measured weak emission angle dependence of fragments spin opposed the prediction of the TSM.…”

“…At all it can be pointed out that the results obtained using this approach is better agreed with experimental data than TSM. 10,11,36 …”