Calculation of fission probability using one- and two-body dissipation in fusion-fission reactions

In this paper, the fission rate and fission probability are calculated using the Langevin dynamical approach. We employed the Langevin equations to calculate the fission probability of a hot compound nucleus and investigated the role of one- and two-body dissipation mechanisms on the fission rate and fission probability. The obtained results using one-body dissipation are lower than results based on two-body dissipation. Calculations are done for F-19 +(159) Tb, F-19 +(169) Tm, F-19 +(181) Ta, and O-16 +(197) Au reactions. It is concluded that agreement between experimental data and results of one-body dissipation, especially in lower energies, is better than calculations based on two-body viscosity.