Abstract
Configuration-constrained potential-energy-surface calculations have been performed to investigate multi-quasiparticle high-K states built on superdeformed minima in 192,194,196Pb and 198Po. The calculations predict that 196Pb and 198Po would be favorable candidates for the observation of low-lying superdeformed two- and four-quasiparticle high-K states. The possible decay paths and lifetimes that could lead to isomers are evaluated in detail for 196Pb. Comparisons between the predictions and previous observations of octupole-vibrational excitations indicate also that bands built on superdeformed high-K intrinsic states may compete with the octupole-vibrational mode in this mass region. The quadrupole moments of both the collective and intrinsic excitations are analyzed.
Original language | English |
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Article number | 064304 |
Journal | Physical Review C - Nuclear Physics |
Volume | 85 |
Issue number | 6 |
DOIs | |
Publication status | Published - 5 Jun 2012 |