FUSION AND FISSION DYNAMICS OF HEAVY NUCLEARSYSTEM

摘要

The paper is focused on reaction dynamics of superheavy nucleus formationand decay at beam energies near the Coulomb barrier. The aim is to reviewthe things we have learned from recent experiments on fusion-fission reactionsleading to the formation of compound nuclei with Z > 102 and from their ex-tensive theoretical analysis. The choice of collective degrees of freedom playinga principal role and finding the adiabatic multi-dimensional driving potentialregulating the whole process are discussed. Dynamics of heavy-ion low en-ergy collisions is studied within the realistic model based on multi-dimensionalLangevin equations. Theoretical predictions are made for synthesis of SH nucleiin symmetric and asymmetric fusion reactions as well as in damped collisionsof transactinides.