Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf

The influence of the central depression in the density distribution of spherical superheavy nuclei on the shell structure is studied within the relativistic mean-field theory. A large depression leads to the shell gaps at the proton Z = 120 and neutron N = 172 numbers, whereas a flatter density distribution favors N = 184 and leads to the appearance of a Z = 126 shell gap and to the decrease of the size of the Z = 120 shell gap. The correlations between the magic shell gaps and the magnitude of the central depression are discussed for relativistic and nonrelativistic mean field theories.