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用Skyrme Hartree Fock+BCS方法计算了超重核的基态性质,讨论了结合能、α衰变、形变、壳结构和自发裂变等问题.计算得到的结合能较好地反映了实验测量值,α衰变能与实验值符合很好.发现基本上有两种类型的超重核形变:在270108核附近的β2≈0.2的长椭球形变和在298114核附近的近球形形变.单粒子能级分布计算表明:在质子Z=108和中子N=162存在变形壳,在质子Z=114和中子N=184存在球形壳.用得到的α衰变能和Viola Seaborg公式估算了α衰变半寿命,能合理地符合实验测量值.
The ground state properties of superheavy nuclei are calculated by using Skyrme Hartree Fock + BCS method, and the binding energies, α decay, deformation, shell structure and spontaneous fission are discussed. The calculated binding energies can well reflect the experimental measurements, α decay energy Which is in good agreement with the experimental data.It is found that there are basically two types of overweight nuclei deformation: the prolate spheroid of β2≈0.2 around the nucleus 270108 and the near spherical deformation near the nucleus of 298114. The calculation of single-particle level distribution shows that: The deformed shell exists at proton Z = 108 and neutron N = 162, and the spherical shell exists at proton Z = 114 and neutron N = 184. The α decay half-life can be estimated from the obtained α decay energy and the Viola Seaborg formula In line with the experimental measurements.