^(110～116)Pd核的低能谱和电磁跃迁的相互作用玻色子模型

Low-lying spectra and E2 transition rates in^(110～116)Pd in the interacting boson model

采用相互作用玻色子模型研究了110～ 116Pd偶偶核的能谱和E2跃迁 ,应用 1个U(5 )→SU(3)的简化哈密顿量很好地描述它们的能谱和跃迁过渡 结果表明 ,110～ 116Pd也可以用U(5 )加 1个SU(3)微扰作用来描述 同时对0 +2 态也作了简要的描述 。

Speatra and E2 transition rates for the even even 110～116 Pd isotopes are studied in the framework of the interacting boson model.A schematic Hamiltonian able to describe their spectra and transition is used.It is found that the spectra can be well described by a U(5)plus SU(3) perturbation interaction.In the meantime,the behavior of 0 + 2 can be partially described by the model.They provide evidence for the occurrence of other low lying collective modes of excitation.