期刊
PHYSICAL REVIEW C
卷 99, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.99.034308
关键词
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资金
- QuantiXLie Centre of Excellence
- Croatian Government
- European Union through the European Regional Development Fund: the Competitiveness and Cohesion Operational Programme [KK.01.1.1.01.0004]
- Spanish Ministry of Economy and Competitiveness (MINECO) [FPA2015-65929-MINECO, FIS2015-63770-MINECO]
We present a method to calculate spectroscopic properties of odd-odd nuclei within the framework of the interacting boson-fermion-fermion model (IBFFM) based on the Gogny energy-density functional. The (beta, gamma)-deformation energy surface of the even-even (boson-)core nucleus, spherical single-particle energies, and occupation probabilities of the odd neutron and odd proton are provided by the constrained self-consistent mean-field calculation within the Hartree-Fock-Bogoliubov method with the Gogny-D1M functional. These quantities are used as a microscopic input to fix most of the parameters of the IBFFM Hamiltonian. Only a few coupling constants for the boson-fermion Hamiltonian and the residual neutron-proton interaction are specifically adjusted to reproduce experimental low-energy spectra in odd-mass and odd-odd nuclei, respectively. In this way, the number of free parameters involved in the IBFFM framework is reduced significantly. The method is successfully applied to the description of the low-energy spectra and electromagnetic transition rates in the odd-odd Au-194,Au-196,Au-198 nuclei.
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