Fusion-fission dynamics of super-heavy element formation and decay Original Research Article

Formation dynamics of very heavy compound nuclei taking place in strong competition with the process of quasi-fission is discussed. For the first time a common driving potential is defined in the whole configuration space and used for simultaneous description of the whole evolution process starting from approaching of two heavy nuclei and ending in compound nucleus configuration of the system and/or in fission channels (normal and fast) with formation of fission fragments. Theoretical analysis of available experimental data on the “cold” and “hot” fusion-fission reactions was performed and the corresponding cross sections of super-heavy element formation were calculated up toZCN = 120.