The effect of the two-nucleon excitation from p to sd shell is discussed on12 C and14C in the frame work of the nuclear shell model. The recently suggested shell-model Hamiltonian YSOX provides an suitable tool to inv...The effect of the two-nucleon excitation from p to sd shell is discussed on12 C and14C in the frame work of the nuclear shell model. The recently suggested shell-model Hamiltonian YSOX provides an suitable tool to investigate the 2hω excitation in psd region. Because the strength of the< pp|V |sdsd > interaction, which represents the interaction between the 0 and 2hω configurations, is considered in the construction of the Hamiltonian YSOX. The level of12 C is almost independent on the < pp|V |sdsd > interaction, but excitation energies of certain states in14 C are strongly affected by it.Further investigation shows that the percentage of 2hω configuration in these states is quite different from that of the ground state. The non-linear effects of the < pp|V |sdsd > interaction on the configurations and transition rates are also discussed.展开更多
基金National Natural Science Foundation of China(11305272)Specialized Research Fund for the Doctoral Program of Higher Education(20130171120014)+2 种基金Fundamental Research Funds for the Central Universities(14lgpy29)Guangdong Natural Science Foundation(2014A030313217)Pearl River S&T Nova Program of Guangzhou(201506010060)
文摘The effect of the two-nucleon excitation from p to sd shell is discussed on12 C and14C in the frame work of the nuclear shell model. The recently suggested shell-model Hamiltonian YSOX provides an suitable tool to investigate the 2hω excitation in psd region. Because the strength of the< pp|V |sdsd > interaction, which represents the interaction between the 0 and 2hω configurations, is considered in the construction of the Hamiltonian YSOX. The level of12 C is almost independent on the < pp|V |sdsd > interaction, but excitation energies of certain states in14 C are strongly affected by it.Further investigation shows that the percentage of 2hω configuration in these states is quite different from that of the ground state. The non-linear effects of the < pp|V |sdsd > interaction on the configurations and transition rates are also discussed.
