Luo, YA , Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China.
部门归属:
Nankai Univ, Dept Phys, Tianjin 300071, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China
英文摘要:
The nucleon-pair shell model truncated to the S-D subspace is applied to nucleus Ba-134 for examining the effects on collectivity due to long-range n-p quadrupole forces. It is found that symmetric and mixed-symmetric states, consequently M1 transitions, are primarily controlled by the n-p quadrupole interaction. In comparison with surface-delta interaction, when the quadrupole n-p Coupling is weak, the model can produce approximately the vibrational limit. and when the quadrupole n-p coupling is strong, the O(6) limit can be realized.
