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arXiv · 2309.09285

Persistent vibrational structure in $^{110-116}$Cd

N. Gavrielov·J. E. Garcia-Ramos·P. Van Isacker·A. Leviatan
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Abstract

The empirical spectra and $E2$ decay rates in $^{110,112,114,116}$Cd are shown to be consistent with a vibrational interpretation for low-lying normal states, coexisting with a single deformed $γ$-soft band of intruder states. The observed deviations from this paradigm show up in particular non-yrast states, which are properly described by a Hamiltonian with U(5) partial dynamical symmetry. The latter is characterized by a good (broken) symmetry in most (in selected) normal states, weakly coupled to intruder states.

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N. Gavrielov, J. E. Garcia-Ramos, P. Van Isacker, A. Leviatan. 2023-09-17. Persistent vibrational structure in $^{110-116}$Cd. https://doi.org/10.1103/physrevc.108.l031305

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