Journal article

Publication year: 2007

Journal: Physical Review C

Volume number: 76

Issue number: 3

ISSN: 0556-2813

eISSN: 1089-490X

DOI Link: https://doi.org/10.1103/PhysRevC.76.034324

Publisher: American Physical Society

Abstract: 
A collective model describing coherent quadrupole-octupole oscillations and rotations with a Coriolis coupling between the even-even core and the unpaired nucleon is applied to odd nuclei. The particle-core coupling provides a parity-doublet structure of the spectrum, whereas the quadrupole-octupole motion leads to a splitting of the doublet energy levels. The formalism successfully reproduces the split parity-doublet spectra and the attendant B(E1) and B(E2) transition probabilities in a wide range of odd-A nuclei. It provides estimations for the influence of the Coriolis interaction on the collective motion and subsequently for the value of angular momentum projection K on which the spectrum is built. The analysis of the energy splitting and B(E1) transition probabilities between opposite parity counterparts suggests degenerate doublet structures at high angular momenta. The study provides information about the evolution of quadrupole-octupole collectivity in odd-mass nuclei.

Harvard Citation style: Minkov, N., Drenska, S., Yotov, P., Lalkovski, S., Bonatsos, D. and Scheid, W. (2007) Coherent quadrupole-octupole modes and split parity-doublet spectra in odd-A nuclei, PHYSICAL REVIEW C, 76(3), Article 034324. https://doi.org/10.1103/PhysRevC.76.034324

APA Citation style: Minkov, N., Drenska, S., Yotov, P., Lalkovski, S., Bonatsos, D., & Scheid, W. (2007). Coherent quadrupole-octupole modes and split parity-doublet spectra in odd-A nuclei. PHYSICAL REVIEW C. 76(3), Article 034324. https://doi.org/10.1103/PhysRevC.76.034324