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Description of Stabilization of Octupole Deformation in Alternating-Parity Bands of Heavy Nuclei

  • NUCLEI
  • Theory
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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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Funding

This work was supported by Russian Foundation for Basic Research (project no. 17-52-12015).

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Authors and Affiliations

  1. Bogoliubov Laboratory of Theoretical, Joint Institute for Nuclear Research aaa, Dubna, Moscow oblast, 141980, Russia

    E. V. Mardyban, T. M. Shneidman, E. A. Kolganova & R. V. Jolos

  2. Dubna State University, Dubna, Moscow oblast, 141982, Russia

    E. V. Mardyban, E. A. Kolganova & R. V. Jolos

  3. Kazan Federal University, Kazan, 420008, Russia

    T. M. Shneidman

Authors
  1. E. V. Mardyban
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  2. T. M. Shneidman
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  3. E. A. Kolganova
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  4. R. V. Jolos
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Corresponding author

Correspondence to E. V. Mardyban.

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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

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