抄録
A new mechanism of the fusion-fission process for a heavy nuclear system is proposed, which takes place in the (A1, A2) space, where A1 and A2 are two nuclei, surrounded by a certain number of shared nucleons ΔA. The nuclei A1 and A2 gradually lose (or acquire) their individualities with increasing (or decreasing) a number of collectivized nucleons ΔA. The driving potential in the (A1, A2) space is derived, which allows the calculation of both the probability of the compound nucleus formation and the mass distribution of fission and quasi-fission fragments in heavy ion fusion reactions. The cross sections of super-heavy element formation in the "hot" and "cold" fusion reactions have been calculated up to ZCN=118.