Role of tensor interaction in heavy and superheavy nuclei, X.-R. Zhou, Department of Physics and Institute of Theoretical Physics and Astrophysics,Xiamen University, Xiamen 361005, P. R. China, Chen Qiu, H. Sagawa, Center for Mathematics and Physics, University of Aizu, Aizu-Wakamatsu, 965-8580 Fukushima, JapanWe discuss the effect of tensor interaction on the deformation and shell structure of heavy and superheavy nuclei in the frame of the deformed Skyrme Hartree-Fock+BCS model. To check the role of tensor correlations in heavy nuclei: Kr isotopes, 249Bk and 251Cf, we compare the results of different Skyrme interactions:  SLy5 without tensor interaction, and SLy5+T, T24 and T44 with tensor interaction with experimental data.  It is shown that compared to the other interactions, the SLy5+T interaction describes well, the shape of the ground state in 80Zr, and also the single particle spectra of protons and neutrons in 249Bk and 251Cf, respectively.  Concerning the effect of tensor in superheavy nuclei, we investigate the evolution of shell structure in 298114 with the same method.  The large shell gaps of superheavy nuclei 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 shown that the Z=114 and N=164 shell gaps are more pronounced in the case of SLy5+T interaction with tensor force.

 

PACS numbers: 21.10.Dr 21.10.Pc, 21.60.Jz