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Description of odd-mass nuclei within the interacting boson-fermion model based on the Gogny energy density functional

2017/05/31 by K. Nomura, R. Rodríguez-Guzmán, R. Rodrı́guez-Guzmán +1 · 22 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Atomic and Molecular Physics #Atomic physics #Boson #Fermion #Hamiltonian (control theory) #Interacting boson model #Mean field theory #Nuclear physics research studies #Parametrization (atmospheric modeling) #Physics #Quadrupole #Quantum electrodynamics #Quantum mechanics #Spectral line #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevc.96.014314

published in Physical Review C 96(1) (American Institute of Physics) · 14 pages, 16 figures, 9 tables

openalex publication_date 2017/07/21 · arxiv created 2017/07/22 · arxiv updated 2017/07/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Spectroscopic properties of odd-mass nuclei are studied within the framework of the interacting boson-fermion model (IBFM) with parameters based on the Hartree-Fock-Bogoliubov (HFB) approximation. The parametrization D1M of the Gogny energy density functional (EDF) was used at the mean-field level to obtain the deformation energy surfaces for the considered nuclei in terms of the quadrupole deformations (\ensuremathβ,\ensuremathγ). In addition to the energy surfaces, both single-particle energies and occupation probabilities were used as a microscopic input for building the IBFM Hamiltonian. Only three strength parameters for the particle-boson-core coupling are fitted to experimental spectra. The IBFM Hamiltonian is then used to compute the energy spectra and electromagnetic transition rates for selected odd-mass Eu and Sm nuclei as well as for 195Pt and 195Au. A reasonable agreement with the available experimental data is obtained for the considered odd-mass nuclei.

Citations