Role of dinuclear systems in nuclear fusion, quasifission, fission, and cluster formation

Nuclear fusion, quasifission, fission, and cluster formation in excited nuc lei are considered as processes of the formation and evolution of a dinucle ar system. In this approach, new aspects of nuclear fusion are revealed and the important role of quasifission in the fusion of superheavy elements is demonstrated. A qualitative pattern of the fission of excited nuclei, wher e the formation of clusters play an important role, is given.