Superdeformed Oblate Superheavy Nuclei?

Abstract

We study stability of superdeformed oblate (SDO) superheavy $Z\ge 120$ nuclei predicted by systematic macroscopic-microscopic calculations in 12D deformation space and confirmed by the Hartree-Fock calculations with the realistic SLy6 force. We include into consideration high-$K$ isomers that very likely form at the SDO shape. Although half-lives $T_{1/2}\lesssim 10^{-5}$ s are calclulated or estimated for even-even spin zero systems, decay hindrances known for high-$K$ isomers suggest that some SDO superheavy nuclei may be detectable by the present experimental technique.

4 pages, 5 figures

References in corpus (4)

• Shell Structure of the Superheavy Elements
• Enhanced Stability of Superheavy Nuclei due to High-Spin Isomerism
• Low energy shape oscillations of negative parity in the main and shape-isomeric minima in actinides
• Strongly Enhanced Low Energy Alpha-Particle Decay in Heavy Actinide Nuclei and Long-Lived Superdeformed and Hyperdeformed Isomeric States

Cited by in corpus (15)

• Spontaneous fission modes and lifetimes of super-heavy elements in the nuclear density functional theory
• Potential Energy Surfaces of Actinide Nuclei from a Multi-dimensional Constraint Covariant Density Functional Theory: Barrier Heights and Saddle Point Shapes
• Multidimensionally-constrained relativistic mean field models and potential energy surfaces of actinide nuclei
• Fission half-lives of super-heavy nuclei in a microscopic approach
• Multidimensionally-constrained covariant density functional theories --- nuclear shapes and potential energy surfaces
• Covariant density functional theory: Reexamining the structure of superheavy nuclei
• Properties of heaviest nuclei with $98\le Z\le 126$ and $134\le N\le 192$
• Relativistic Energy Density Functional Description of Shape Transition in Superheavy Nuclei
• Adiabatic fission barriers in superheavy nuclei
• Central depression in nucleonic densities: Trend analysis in nuclear density-functional-theory approach
• Adaptive Multi-resolution 3D Hartree-Fock-Bogoliubov Solver for Nuclear Structure
• Superheavy nuclei in microscopic collective Hamiltonian approach: the impact of beyond mean field correlations on the ground state and fission properties
• Candidates for Long Lived High-K Ground States in Superheavy Nuclei
• Potential energy surfaces of actinide and transfermium nuclei from multi-dimensional constraint covariant density functional theories
• Hindered alpha decays of heaviest high-K isomers