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,
Japan − We
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.