Présidents de session
Session 10: Shapes and shape coexistence
- Elena Litvinova (Western Michigan University, USA)
We study low-lying states of two-quasiparticle character in some well-deformed odd-odd nuclei around $^{178}$Hf within the framework of the Skyrme energy-density functional (SEDF) approach, including BCS pairing correlations with selfconsistent blocking. We use the SIII SEDF parametrization with time-odd terms and seniority pairing residual interaction as in a previous study of...
The triaxial deformation and coupling with pairing vibration play important roles on the nuclear low-lying spectra and shape transitions. Here we have constructed a triaxial-and-pairing collective Hamiltonian that describes the triaxial shape vibrations, rotations, and coupling with pairing vibration, based on the covariant density functional theory (CDFT). The dynamics of the collective...
It will be shown within a relatively simple nuclear structure model framework [1] that the formation of the 8 eV "clock" isomer $^{229m}$Th may be the effect of single-neutron levels quasi-degeneracy stemming from a specific quadrupole octupole shape of the nucleus. The very fine interaction between collective and single-particle modes within narrow limits in the deformation space rather...
