Abstract
The nucleon pair shell model calculation is performed in terms of the SD collective pairs which are obtained in a suitable way to obtain the maximum collectivity. The method is applied to even-even Sn, Te, Xe, Ba, and Ce isotopes near the region employing the (monopole and quadrupole) pairing plus quadrupole-quadrupole-type interaction with a very few parameters. The structure of energy levels for the quasi-γ band as well as the ground band is well reproduced in each nucleus. Other properties such as transition rates and binding energies also agree with experimental data very well. The overall fit with the experimental data is superior to the previous calculations.
- Received 21 December 1999
DOI:https://doi.org/10.1103/PhysRevC.62.014315
©2000 American Physical Society