Microscopic description of quadrupole-octupole coupling in neutron-rich actinides and superheavy nuclei with the Gogny-D1M energy density functional

R. Rodríguez-Guzmán and L. M. Robledo
Phys. Rev. C 103, 044301 – Published 1 April 2021

Abstract

The interplay between quadrupole and octupole degrees of freedom is discussed in a series of neutron-rich actinides and superheavy nuclei with 92Z110 and 186N202. In addition to the static Hartree-Fock-Bogoliubov approach, dynamical beyond-mean-field correlations are taken into account via both parity restoration and symmetry-conserving generator coordinate method calculations based on the Gogny-D1M energy density functional. Physical properties such as correlation energies, negative-parity excitation energies, as well as reduced transition probabilities B(E1) and B(E3) are discussed in detail. It is shown that, for the studied nuclei, the quadrupole-octupole coupling is weak and to a large extent the properties of negative-parity states can be reasonably well described in terms of the octupole degree of freedom alone.

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  • Received 23 January 2021
  • Accepted 22 March 2021

DOI:https://doi.org/10.1103/PhysRevC.103.044301

©2021 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

R. Rodríguez-Guzmán*

  • Department of Physics, Kuwait University, 13060 Kuwait, Kuwait

L. M. Robledo

  • Center for Computational Simulation, Universidad Politécnica de Madrid, Campus Montegancedo, 28660 Boadilla del Monte, Madrid, Spain and Departamento de Física Teórica and CIAFF, Universidad Autónoma de Madrid, 28049 Madrid, Spain

  • *raynerrobertorodriguez@gmail.com
  • luis.robledo@uam.es

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Issue

Vol. 103, Iss. 4 — April 2021

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