https://doi.org/10.1140/epja/i2013-13015-x
Regular Article - Theoretical Physics
The effect of the tensor force on the bubble structure in Ar isotopes
1
Department of Mathematics and Physics, Shijiazhuang TieDao University, 050043, Shijiazhuang, China
2
China Institute of Atomic Energy, P. O. Box 275 (10), 102413, Beijing, China
3
Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator of Lanzhou, 730000, Lanzhou, China
4
School of Physics and Electronic Sciences, Guizhou Normal College, 550018, Guiyang, China
5
Department of Mathematics and Physics, North China Electric Power University, 071003, Baoding, China
* e-mail: yanzhaowang09@126.com
Received:
28
December
2012
Accepted:
4
January
2013
Published online:
25
January
2013
The tensor force effect on the proton bubble structure of Ar isotopes is investigated in the framework of the Hartree-Fock-Bogoliubov (HFB) approach with the Skyrme interactions SLy5+T and SLy5+Tw. It is shown that the tensor force effect of the SLy5+Tw interaction favors the bubble structure of 44-56Ar due to the inversion between the proton single-particle states 
and 
( -1d
3/2 inversion). However, the SLy5+T interaction cannot lead to any -1d
3/2 inversion of Ar isotopes, consequently, no bubble structure can be found in the isotopes. In addition, taking 46Ar as an example, the competition between the tensor force and pairing interaction on the bubble formation is examined in order to understand the bubble formation mechanism.
© SIF, Springer-Verlag Berlin Heidelberg, 2013
