Microscopic analysis of wobbling excitations in {sup 156}Dy and {sup 162}Yb
Journal Article
·
· Journal of Experimental and Theoretical Physics
- Charles University, Institute of Particle and Nuclear Physics (Czech Republic)
In the cranked Nilsson-plus-random-phase approximation, we study low-lying quadrupole excitations of positive parity and negative signature in {sup 156}Dy and {sup 162}Yb at high spins. Special attention is paid to a consistent description of wobbling excitations and their identification among excited states. A good agreement between the available experimental data and the results of calculations is obtained. We find that the lowest odd-spin {gamma}-vibrational states in {sup 156}Dy transform into wobbling excitations after the backbending associated with the transition from an axially symmetric shape to a nonaxial shape. Similar results are predicted for {sup 162}Yb. The analysis of electromagnetic transitions uniquely determines the sign of the {gamma} deformation in both nuclei after the transition point.
- OSTI ID:
- 21075665
- Journal Information:
- Journal of Experimental and Theoretical Physics, Journal Name: Journal of Experimental and Theoretical Physics Journal Issue: 5 Vol. 105; ISSN JTPHES; ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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