Fission fragment mass distributions at high excitation energies for 16,18O + 194,198Pt systems

Fission fragments mass distributions in a fusion-fission reaction is a sensitive probe to understand the reaction mechanism and the dynamics involved in the fission process. It is interesting to extend the study of mass distributions for less fissile target projectile combinations (having larger fission barrier) to understand the saddle to scission dynamics in the fission process. We have carried out measurements of the mass distribution in the above barrier energies for 16,18O + 194,198Pt systems. The experimental results along with the existing data in the literature for 12C + 183W, 12C + 198Pt, 12C + 197Au, 16O + 198Pt, 16O + 197Au and 16O + 181Ta are analyzed in a similar way. All the targets involved in the present analysis are also deformed