Fusion-fission of superheavy nuclei and clustering phenomena

11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Itkis, M.G.^1 ; Itkis, I.M.^1 ; Knyazheva, G.N.^1 ; Kozulin, E.M.^1

Joint Institute for Nuclear Research, Dubna

141980, Russia^1

关键词: Channel asymmetry;    Clustering phenomena;    Coulomb barrier;    Energy distributions;    Fusion-Fission;    Shell effects;    Shell structure;    Superheavy nuclei;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/863/1/012043/pdf
DOI  :  10.1088/1742-6596/863/1/012043

来源: IOP

【 摘 要 】

Results of the study of mass-energy distributions of binary fragments for a wide range of nuclei with Z = 82-122 produced in reactions with heavy ions at energies close and below the Coulomb barrier are reported. The role of the shell effects, the influence of the entrance channel asymmetry and the deformations of colliding nuclei on the mechanism of the fusion-fission and quasifission processes are discussed. The observed peculiarities of the mass and energy distributions of reaction fragments are determined by the shell structure of the formed fragments.