Bulg. J. Phys. vol.48 no.5-6 (2021), pp. 475-484

Shape Coexistence in 74Ge, 74Se and 74Kr Investigated by Phenomenological and Microscopic Models

A. Ait Ben Mennana1, R. Benjedi1, P. Buganu2, R. Budaca2, A.I. Budaca2, Y. El Bassem1,3, A. Lahbas3,4, M. Oulne1
1LPHEA, Department of Physics, Faculty of Sciences Semlalia, Cadi Ayyad University, Marrakesh, Morocco
2Department of Theoretical Physics, Horia Hulubei National Institute for R & D in Physics and Nuclear Engineering, Str. Reactorului 30, RO-077125, POB-MG6, Bucharest-Măgurele, Romania
3ERMAM, Polydisciplinary Faculty of Ouarzazate, Ibn Zohr University, Ouarzazate Box 638, Morocco
4ESMaR, Department of Physics, Faculty of Sciences, Mohammed V University in Rabat, Morocco
Abstract. The deformation properties of 74Ge, 74Se and 74Kr are studied within the phenomenological Bohr-Mottelson model, having as input the experimental collective energy states, as well with Covariant Density Functional theories based on microscopic structural information. The results of these approaches are shown to be compatible in what concerns the presence of coexisting shapes in the considered nuclei, while the emergence of shape mixing is deduced from the phenomenological calculated collective states.

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