学術雑誌論文 Description of odd-mass nuclei within the interacting boson-fermion model based on the Gogny energy density functional

Nomura, K.  ,  Rodríguez-Guzmán, R.  ,  Robledo, L. M.

96 ( 1 )  , p.14314 , 2017-07 , American Physical Society
ISSN:2469-9985
NII書誌ID(NCID):AA00773613
内容記述
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 (β,γ). 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.
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