Shape coexistence in doubly even nuclei is reviewed. Two main theoretical approaches are
presented. The first is essentially the shell model with the excitation of pairs of protons …

Recent high-spin observations reveal entirely new modes of collective rotational motion and
the existence of novel symmetries and spontaneous symmetry breaking phenomena …

Pairing-deformation self-consistent total routhian surface type calculations are presented.
The total routhian is calculated using the Strutinsky shell-correction method on a lattice in …

The cranked Hartree-Fock-Bogoliubov method, applied in a previous study to SD bands of
even Hg and Pb isotopes, is extended by including pairing correlations described by a zero …

Extensions to the standard total routhian surface calculations are presented. The particle
number symmetry is approximately restored using the Lipkin-Nogami method to avoid the …

A candidate for chiral bands was found in Tl 198 for the first time in a mass region of oblate
(or nonaxial with γ⩾ 30°) deformed nuclei. Two bands show very similar quasiparticle …

The nucleus 198Pb was populated via the 186W (17O, 5n) 198Pb reaction at beam
energies of 92 and 98 MeV. A highly regular rotational ΔI= 1 band has been found. Angular …

The hyperfine structure splitting and the isotope shift in the λ= 266 nm transition of Pt
isotopes within the mass range 183≦ A≦ 198 have been determined by Resonance …

Energies of superdeformed states in nuclei around 192Hg are calculated using the
Strulinsky shell correction method with an average Woods-Saxon potential and a monopole …

Evidence for collective behavior in the high-spin region of lead nuclei is provided by the
observation of two collective structures in Pb 197. One of these bands is interpreted as an …