Octupole deformations in actinides at high spins within the cranking Skyrme-Hartree-Fock approach

Abstract

The cranked Skyrme III effective Hamiltonian is applied for the analysis of the rotational dependence of the quadrupole and octupole moments in Ra, Th, and U isotopes. A comparison of the intrinsic electric dipole moments calculated in the model with available experimental and theoretical values is presented. It is found that the non-axial octupole deformation $Y_{32}$ becomes favorable at high spins for the actinide nuclei.

arXiv comment4 pages, 6 figures in gif format

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• Description of nuclear octupole and quadrupole deformation close to the axial symmetry and phase transitions in the octupole mode
• Description of nuclear octupole and quadrupole deformation close to the axial symmetry: Critical-point behavior of 224Ra and 224Th
• Polarized electric dipole moment of well-deformed reflection asymmetric nuclei
• Reflection symmetry instability at high spins in 162,164Yb