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

Bibliographic Details
Title: Microscopic description of quadrupole-octupole coupling in neutron-rich actinides and superheavy nuclei with the Gogny-D1M energy density functional
Authors: Rodriguez-Guzman, R., Robledo, L. M.
Source: Phys. Rev. C 103, 044301 (2021)
Publication Year: 2021
Collection: Nuclear Theory
Subject Terms: Nuclear Theory
More Details: The interplay between quadrupole and octupole degrees of freedom is discussed in a series of neutron-rich actinides and superheavy nuclei with $92 \le$ Z $\le 110$ and $186 \le$ N $\le 202$. 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.
Comment: 18 pages, 13 figures. arXiv admin note: text overlap with arXiv:2008.09365
Document Type: Working Paper
DOI: 10.1103/PhysRevC.103.044301
Access URL: http://arxiv.org/abs/2104.08063
Accession Number: edsarx.2104.08063
Database: arXiv
More Details
DOI:10.1103/PhysRevC.103.044301