Semi-microscopic description of the proton-and neutron-induced backbending phenomena in some deformed even-even rare earth nuclei
1 Horia Hulubei National Institute of Physics and Nuclear Engineering, RO-077125 Bucharest-Magurele, Romania
2 Academy of Romanian Scientists, 54 Splaiul Independentei, RO-050094 Bucharest, Romania
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Published online: 20 March 2014
A semi-microscopic model to study the double backbending phenomenon in some deformed even-even nuclei from the rare earth region is proposed. The backbending phenomena are described by mixing four rotational bands, defined by a set of angular momentum projected states with a specific single-particle factor, and a model Hamiltonian describing a set of paired particles moving in a deformed mean field and interacting with a phenomenological deformed core. Due to the specific construction, the wave function acquires a complex structure which allows a quantitative description of the yrast states in the region of the two backbendings.
© Owned by the authors, published by EDP Sciences, 2014
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