Tensor force effect on proton shell structure in neutron-rich Ca isotopes  

作　　者：LI ZhenYu WANG YanZhao YU GuoLiang GU JianZhong 

机构地区：[1]School of Physics and Electronic Science,Guizhou Normal College [2]China Institute of Atomic Energy [3]Department of Mathematics and Physics,Shijiazhuang TieDao University [4]Department of Mathematics and Physics,North China Electric power university [5]Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou

出　　处：《Science China(Physics,Mechanics & Astronomy)》2013年第9期1719-1729,共11页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.10975190,11275271 and 11075213);the Funds for Creative Research Groups of China (Grant No.11021504);the Doctoral Funds of Guizhou Normal College (Grant No.12BS020);the Natural Science Foundation of Guizhou Province of China (Grant No.2013GZ62432);the Natural Science Foundation of Hebei Province of China (Grant No.2012210043)

摘　　要：In the framework of the Skyrme-Hartree-Fock approach with 36 sets of the TI J parameterizations,the tensor force effect on the evolution of the single-proton states in the calcium isotopes is systematically investigated.It is shown that the single-proton states with higher angular momenta are influenced significantly by the tensor force and the trend in the evolution of somesingle-particle energy differences with the mass number of the isotopes depends sensitively on a parameter βT associated with the intensity of the tensor force.To understand this phenomenon,we analyze the spin-orbit potentials and the radial wave functions of relevant single-proton orbits in detail.In addition,it is found that some TI J interactions could cause the 2s1/21d3/2 energy level inversion in 48Ca.In the framework of the Skyrme-Hartree-Fock approach with 36 sets of the TI J parameterizations,the tensor force effect on the evolution of the single-proton states in the calcium isotopes is systematically investigated.It is shown that the single-proton states with higher angular momenta are influenced significantly by the tensor force and the trend in the evolution of somesingle-particle energy differences with the mass number of the isotopes depends sensitively on a parameter βT associated with the intensity of the tensor force.To understand this phenomenon,we analyze the spin-orbit potentials and the radial wave functions of relevant single-proton orbits in detail.In addition,it is found that some TI J interactions could cause the 2s1/21d3/2 energy level inversion in 48Ca.

关 键 词：Skyrme-Hartree-Fock tensor force effect single-proton states Ca isotopes 

分 类 号：O562.6[理学—原子与分子物理]