Band structure of neutron rich Se and Ge isotopes

International Symposium on Exotic Nuclear Structure From Nucleons 2012

Yoshinaga, N.^1 ; Higashiyama, K.^2

Department of Physics, Saitama University, Saitama City 338-8570, Japan^1

Department of Physics, Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan^2

关键词: Effective interactions;    Energy spectra;    Generator coordinate methods;    High spin state;    Low-lying state;    Quadrupole interactions;    Quantum numbers;    Shell models;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/445/1/012032/pdf
DOI  :  10.1088/1742-6596/445/1/012032

来源: IOP

【 摘 要 】

The band structure of the neutron-rich Se and Ge isotopes has been studied in terms of the full-fledged shell model. The monopole and quadrupole pairing plus quadrupole-quadrupole interaction is employed as an effective interaction. The model reproduces well the energy levels of high-spin states as well as the low-lying states. In order to investigate the structure of the high-spin states and low-lying collective states, the energy spectra in the shell model are compared with those in the quantum-number-projected generator coordinate method. It is shown that the triaxial components play essential roles in describing the γ bands.