Quasiparticle and $\gamma$-band structures in ${}^{156}$Dy

Abstract

Excited band structures recently observed in ${}^{156}$Dy are investigated using the microscopic triaxial projected shell model (TPSM) approach and the quasiparticle random phase approximation (QRPA) based on the rotating mean-field. It is demonstrated that new observed excited bands, tracking the ground-state band, are the $\gamma$-bands based on the excited two-quasineutron configurations as conjectured in the experimental work.

arXiv comment12 pages, 12 figures

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Cited by in corpus (6)

• Symmetry restoration in mean-field approaches
• Microscopic description of structural evolution in Pd, Xe, Ba, Nd, Sm, Gd and Dy isotopes
• Systematic study of near yrast band structures in odd-mass ${}^{125-137}$Pr and ${}^{127-139}$Pm isotopes
• Extended triaxial projected shell model approach for odd-neutron nuclei
• First candidates for γ vibrational bands built on the [505]11/2- neutron orbital in odd-A Dy isotopes
• Triaxial projected shell model study of $\gamma$-bands in atomic nuclei