1Department of Technical Physics and MOE Key Laboratory, Peking University, Beijing 100871
2Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
3Center for Theoretical Nuclear Physics, National Laboratory for Heavy Ion Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
Spherical and Deformed Shell Closures in Superheavy nuclei
1Department of Technical Physics and MOE Key Laboratory, Peking University, Beijing 100871
2Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
3Center for Theoretical Nuclear Physics, National Laboratory for Heavy Ion Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
Abstract： The structure of superheavy nuclei has been studied using the
macroscopic-microscopic model. The macroscopic energy was calculated with the continuous medium model in which the energy is expressed as a function of nucleon densities. The deformations and structures of superheavy nuclei were systematically investigated. Calculations reproduce well the available data of experimental α-decay energies and half-lives. The investigation of single-particle levels shows that the shell structure is deformation and isospin dependent. Potential-energy-surface calculations display that superheavy nuclei have in general harder shapes than the nuclei of other mass regions.
2003, Vol. 20 
