Nuclear tetrahedral configurations at spin zero

Abstract

The possibility of the existence of stable tetrahedral deformations at spin zero is investigated using the Skyrme-HFBCS approach and the generator coordinate method (GCM). The study is limited to nuclei in which the tetrahedral mode has been predicted to be favored on the basis of non self-consistent models. Our results indicate that a clear identification of tetrahedral deformations is unlikely as they are strongly mixed with the axial octupole mode. However, the excitation energies related to the tetrahedral mode are systematically lower than those of the axial octupole mode in all the nuclei included in this study.

10 pages, 4 figures

References in corpus (10)

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Cited by in corpus (13)

• Multidimensionally-constrained covariant density functional theories --- nuclear shapes and potential energy surfaces
• Structural evolution in the neutron-rich nuclei 106Zr and 108Zr
• Nonaxial-octupole Y_{32} correlations in N = 150 isotones from multidimensional constrained covariant density functional theories
• Tetrahedral shapes of neutron-rich Zr isotopes from multidimensionally-constrained relativistic Hartree-Bogoliubov model
• Open problems in microscopic theory of large-amplitude collective motion
• Microscopic study of tetrahedrally symmetric nuclei by an angular-momentum and parity projection method
• Anatomy of octupole correlations in ${}^{96}$Zr with a symmetry-restored multidimensionally-constrained covariant density functional theory
• The impact of the surface energy coefficient on the deformation properties of atomic nuclei as predicted by Skyrme energy density functionals
• Spectroscopic Criteria for Identification of Nuclear Tetrahedral and Octahedral Symmetries: Illustration on a Rare Earth Nucleus
• Effect of tetrahedral shapes in heavy and superheavy nuclei
• The suggested presence of the tetrahedral-symmetry in the ground-state configuration of the ${}^{96}$Zr nucleus
• A New Evidence of Interplay Between Tetrahedral and Octahedral Symmetries and Symmetry Breaking: Exotic Rotational Bands in ${}^{152}$Sm
• Mass Probe of Tetrahedral Symmetry in Atomic Nuclei