Effect of tensor force on the shell structure of superheavy nuclei

Abstract

We study the effect of tensor interaction on the shell structure of superheavy nuclei in the frame of the deformed Skyrme Hartree-Fock+BCS model. To this end, we adopt four different Skyrme interactions; SLy5 without tensor interaction, and SLy5+T, T24 and T44 with tensor interaction. The calculation with SLy5+T interaction reproduce the single particle spectra of protons and neutrons in 249Bk and 251Cf, better than the other calculations with SLy5, T24 or T44 interaction. The large shell gaps of superheavy nuclei (SHE) are found at Z=114 and Z=120 for protons and N=184 for neutrons with the spherical shape irrespective of the tensor correlations. It is also found that Z=114 and N=164 shell gaps are more pronounced by SLy5+T interaction with the tensor correlations.