Relationships Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region of N=88~90
- Received Date: 1990-06-06
Abstract: The onset of deformation in the N=88~90 region and the effects of the gap at the Z=64 subshell on nuclear structure are investigated in a microscopic approach of the interacting boson model. Besides the n-p interaction, the distribution of single particle levels in the shell model space also is found to play a direct and important role in the rapid transition of the spectrum structure. For Nd~Dy nuclei,the calculations show excellent agreement with the experimental energy systematics.