D. Bonatsos, I. E. Assimakis, A. Martinou, S. K. Peroulis, S. Sarantopoulou, N. Minkov
Published 2019-12-06Version 1
The systematics of experimental energy differences between the levels of the ground state band and the gamma-1 band in even-even nuclei are studied as a function of the angular momentum L, demonstrating a decrease of the energy differences with increasing L, in contrast to what is seen in vibrational, gamma-unstable, and triaxial nuclei. After a short review of the relevant predictions of several simple collective models, it is shown that this decrease is caused in the framework of the proxy-SU(3) scheme by the same three-body and/or four body operators which break the degeneracy between the ground state band and the gamma-1 band, predicting in parallel the correct form of odd-even staggering within the gamma-1 bands.
Comments: 13 pages, 3 figures, 2 tables
Breaking SU(3) spectral degeneracies in heavy deformed nuclei
B(E2) Evaluation for $0_{1}^{+} \rightarrow 2_{1}^{+}$ Transitions in Even-Even Nuclei
Manifestations of SU(3) symmetry in heavy deformed nuclei
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