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

TL;DR

This paper investigates shape coexistence in 74Ge, 74Se, and 74Kr using phenomenological and microscopic models, revealing compatible evidence of coexisting shapes and shape mixing in these nuclei.

Contribution

It combines phenomenological Bohr-Mottelson and microscopic Covariant Density Functional models to analyze shape coexistence in specific nuclei, demonstrating their compatibility.

Findings

Evidence of shape coexistence in 74Ge, 74Se, and 74Kr

Shape mixing inferred from phenomenological models

Compatibility between phenomenological and microscopic approaches

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.