On the intersection of the shell, collective and cluster models of   atomic nuclei II: Symmetry-breaking and large deformations
  We discuss the role of the broken symmetries in the connection of the shell, collective and cluster models. The cluster-shell competition is described in terms of cold quantum phases. Stable quasi-dynamical U(3) symmetry is found for specific large deformations for a Nilsson-type Hamiltonian. 
J. Cseh, J. Darai
nucl-th