Proxy-SU(3) symmetry for heavy deformed nuclei: nuclear spectra
Abstract
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.
Keywords
Cite
@article{arxiv.1912.03293,
title = {Proxy-SU(3) symmetry for heavy deformed nuclei: nuclear spectra},
author = {D. Bonatsos and I. E. Assimakis and A. Martinou and S. K. Peroulis and S. Sarantopoulou and N. Minkov},
journal= {arXiv preprint arXiv:1912.03293},
year = {2019}
}
Comments
13 pages, 3 figures, 2 tables