High-spin doublet band structures in odd–odd $$^{194-200}$$Tl isotopes

Level structures of 96Tc and their microscopic description

“…We have used the TPSM [24] to explain the band structure for 96 Tc nuclus. The details of this formalism for odd-odd nuclei can be found in [43,44]. For odd-odd nuclei, the basis space in the TPSM approach is composed of one-neutron coupled to one-proton quasiparticle configurations [43].…”

“…This basis space is obviously quite restrictive and allows to study only lowlying states in odd-odd nuclei. To study the high-spin states in odd-odd nuclei, around and beyond the band crossing, it is imperative to include two-neutron and two-proton states coupled to the basic one-neutron plus one-proton states [44]. This extension of the model space will allow to probe the high-spin band structures beyond the first band crossing.…”

“…It is, therefore, important to choose optimum deformation values. The pairing interaction parameters employed in the present work are the same used in [43,44].…”

Extended triaxial projected shell model approach for odd-neutron nuclei

“…This extension makes it feasible to investigate the odd-neutron systems up to quite high angular momentum and as a first major application of this development, the high-spin band structures for odd-neutron 117−131 Xe have been investigated in the present work. The present work is an ongoing effort of our group to extend the TPSM approach and in our recent publications, we have expanded the basis space of even-even [65], odd-odd [66] and odd-proton [67] systems. We would like to mention that in a parallel effort, the axial version of the TPSM approach has also been generalized to multi-quasiparticle states [68][69][70].…”