Non-yrast spectra of odd-Anuclei in a model of coherent quadrupole-octupole motion

N. Minkov, S. Drenska, K. Drumev, M. Strecker, H. Lenske, W. Scheid
2013 Physical Review C  
The model of coherent quadrupole and octupole motion (CQOM) is applied to describe non-yrast split parity-doublet spectra in odd-mass nuclei. The yrast levels are described as low-energy rotation-vibration modes coupled to the ground single-particle (s.p.) state, while the non-yrast parity-doublet structures are obtained as higher-energy rotation-vibration modes coupled to excited s.p. states. It is shown that the extended model scheme describes both the yrast and non-yrast quasi parity-doublet
more » ... spectra and the related B(E1) and B(E2) transition rates in different regions of heavy odd-A nuclei. The involvement of the reflection-asymmetric deformed shell model to describe the single-particle motion and the Coriolis interaction on a deeper level is discussed.
doi:10.1103/physrevc.88.064310 fatcat:jfmuwe5uuvhr5bma27copgqnvu