Role of saddle-to-scission dynamics in fission fragment mass distribution

The fragment mass distribution from fission of hot nuclei is studied in the framework of two-dimensional Langevin equations. The mass asymmetry coordinate distribution is obtained from the dynamical calculation both at the saddle and the scission regions in order to investigate the role of saddle-to-scission dynamics in fission fragment mass distribution. Statistical model predictions of mass asymmetry distributions at saddle and scission are also compared with the dynamical model results. Results for a number of nuclei covering a broad range of saddle-to-scission distances are presented.