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arXiv · 1803.09471

Low-lying states in even Gd isotopes studied with five-dimensional collective Hamiltonian based on covariant density functional theory

Z. Shi·Q. B. Chen·S. Q. Zhang
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Abstract

Five-dimensional collective Hamiltonian based on the covariant density functional theory has been applied to study the 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 $B(E2)$ transition probabilities for the $^{148-162}$Gd isotopes are reproduced by the present calculations. The relative $B(E2)$ 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 $1i_{13/2}$ orbital result in the well-deformed prolate shape, and are essential for Gd isotopes.

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Z. Shi, Q. B. Chen, S. Q. Zhang. 2018-03-26. Low-lying states in even Gd isotopes studied with five-dimensional collective Hamiltonian based on covariant density functional theory. https://doi.org/10.1140/epja%2Fi2018-12490-9

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