Nuclear structure of 178Hf related to the spin-16, 31-year isomer

Abstract

The projected shell model is used to study the multi-quasiparticle and collective excitations of 178Hf. With an axially symmetric basis, the spin-16 isomer at 2.4 MeV appears to be well separated in energy/spin space from other configurations. However, projected energy surface calculations suggest that 178Hf has significant softness to axially asymmetric shapes, which can strongly modify the level distribution. The implications for photodeexitation of the isomer are discussed.

8 pages, 4 figures

Cited by in corpus (9)

• Relativistic Continuum Hartree Bogoliubov Theory for Ground State Properties of Exotic Nuclei
• A beyond mean field analysis of the shape transition in the Neodymium isotopes
• Shell model method for Gamow-Teller Transitions in heavy, deformed nuclei
• Description of collective and quasiparticle excitations in deformed actinide nuclei: The first application of the Heavy Shell Model
• Two-phonon $\gamma$-vibrational states in rotating triaxial odd-$A$ nuclei
• Projected shell model description for nuclear isomers
• Description of ${}^{178}$Hf${}^{m2}$ in the constrained relativistic mean field theory
• Shell model for heavy nuclei and its application in nuclear astrophysics
• Effects of high-$j$ orbitals, pairing and deformed neutron shells on upbendings of ground-state bands in neutron-rich even-even isotopes ${}^{170-184}$Hf