Abstract
A recent study of the onset of chaos in the low-lying collective states of nuclei, which uses the interacting boson model, is extended to higher spins and/or higher energies by including broken pairs. Spectral fluctuations are studied as a function of the quadrupole-quadrupole interaction between the fermion pair and the core and the pair-breaking interaction that mixes states with different number of fermions. The effects of the Coriolis force are discussed.
- Received 8 May 1992
DOI:https://doi.org/10.1103/PhysRevC.46.1334
©1992 American Physical Society
