Semi-microscopic description of the double backbending in some deformed even-even rare earth nuclei
Abstract
A semi-microscopic model to study the neutron and proton induced backbending phenomena in some deformed even-even nuclei from the rare earth region, is proposed. The space of particle-core states is defined by the angular momentum projection of a quadrupole deformed product state. The backbending phenomena are described by mixing four rotational bands, defined by a set of angular momentum projected states, and a model Hamiltonian describing a set of paired particles moving in a deformed mean field and interacting with a phenomenological deformed core. The ground band corresponds to the configuration where all particles are paired while the other rotational bands are built on one neutron or/and one proton broken pair. Four rare earth even-even nuclei which present the second anomaly in the observed moments of inertia are successfully treated within the proposed model.
Keywords
Cite
@article{arxiv.1301.6004,
title = {Semi-microscopic description of the double backbending in some deformed even-even rare earth nuclei},
author = {R. Budaca and A. A. Raduta},
journal= {arXiv preprint arXiv:1301.6004},
year = {2015}
}
Comments
36 pages, 10 figures