Abstract
The angular-momentum dependences are analyzed for parity splitting and electric dipole transitions in alternating-parity bands of heavy nuclei. It is shown that these dependences can be treated universally by employing a single parameter taken to be a critical angular momentum that characterizes the phase transition from octupole vibrations to a stable octupole deformation. Analytic expressions for parity splitting and the electric dipole transitional moment are obtained on the basis of a simple model. The results are compared with experimental data for various barium, cerium, and neodymium isotopes.
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This work was supported by Russian Foundation for Basic Research (project no. 17-52-12015).
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Mardyban, E., Shneidman, T., Kolganova, E. et al. Description of Stabilization of Octupole Deformation in Alternating-Parity Bands of Heavy Nuclei. Phys. Atom. Nuclei 83, 53–59 (2020). https://doi.org/10.1134/S1063778820010093
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DOI: https://doi.org/10.1134/S1063778820010093