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Shi, Z.; Chen, Q. B.; Zhang, S. Q.
The European physical journal. A, Hadrons and nuclei, 04/2018, Letnik: 54, Številka: 4Journal Article
. Five-dimensional collective Hamiltonian based on the covariant density functional theory has been applied to study the low-lying states of even-even 148-162 Gd isotopes. The shape evolution from 148 Gd to 162 Gd is presented. The experimental energy spectra and intraband B ( E 2) transition probabilities for the 148-162 Gd isotopes are reproduced by the present calculations. The relative B ( E 2) ratios in present calculations are also compared with the available interacting boson model results and experimental data. It is found that the occupations of neutron 1 i 13 / 2 orbital result in the well-deformed prolate shape, and are essential for Gd isotopes.
