Interpretation of normal-deformed bands in 167Lu
Abstract
With the aim to get a general understanding of rotational bands in the deformed rare-earth region or in deformed nuclei in general, the observed normal-deformed rotational structures in Lu are interpreted within the unpaired and paired cranked Nilsson-Strutinsky formalisms, CNS and CNSB. Particular attention is devoted to the band crossings. For this nucleus with the Fermi surface high up in the shell, we conclude that except for the paired AB and BC crossings in configurations with an even and odd number of neutrons, respectively, the observed band crossings can be understood within the unpaired formalism. Especially, it means that above the AB and BC crossings, the evolution with spin is described as a gradual alignment of the spin vectors of the particles outside closed shells. Consequently, the configurations can be characterized by the number of particles occupying open -shells or groups of -shells. In the present study, we revise the interpretation of some experimental bands and also the nature of the crossings while some previous configuration assignments are confirmed.
Cite
@article{arxiv.2001.01922,
title = {Interpretation of normal-deformed bands in 167Lu},
author = {Azam Kardan and Ingemar Ragnarsson and B. Gillis Carlsson and Hai-Liang Ma},
journal= {arXiv preprint arXiv:2001.01922},
year = {2020}
}