Persistent vibrational structure in 110-116Cd

N. Gavrielov, J. E. García-Ramos, P. Van Isacker, A. Leviatan

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The empirical spectra and E2 decay rates in Cd110,112,114,116 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 nonyrast 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.

Original languageAmerican English
Article numberL031305
JournalPhysical Review C
Issue number3
StatePublished - Sep 2023

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