Fission dynamics of ^192,202Po compound nuclei using fission fragment mass-distribution as a probe

In heavy ions induced fusion-fission (FF) reactions, along with complete fusion there are other competing processes such as quasi-fission (QF), and transfer induced fission at energies around the Coloumb barrier. The complete fusion is described by equilibration in all degrees of freedom where as QF is characterized by full energy dissipation but incomplete drift toward the energetically favoured mass-symmetric configuration. Transfer induced fission also plays important role in fission dynamics for the actinide targets. Measurements of fission fragment angular distribution (FFAD), mass-distribution (MD) and mass-energy correlation helps in distinguishing FF and QF processes. The width of the MD depends strongly on the entrance channel properties, such as mass-asymmetry, deformation of interacting nuclei, collision energy, and the charge product ZPZT of the interacting partners. Any sudden change in the width of the MD would indicate departure from full equilibration. With this motivation in our mind, we have measured MD for the systems ⁴⁸Ti+^144,154Sm populating ^192,202Po compound nuclei (CN) with incident laboratory energy (E_lab) varying between 246-198 MeV. G. In this work, our aim is to compare the MD results of the ⁴⁸Ti+^144,154Sm systems with the one reported in earlier work