Partial dynamical symmetry and odd-even staggering in deformed nuclei

Abstract

Partial dynamical symmetry (PDS) is shown to be relevant for describing the odd-even staggering in the $\gamma$-band of ${}^{156}$Gd while retaining solvability and good SU(3) symmetry for the ground and $\beta$ bands. Several classes of interacting boson model Hamiltonians with SU(3) PDS are surveyed.

Comments: 3 pages, 3 figures, talk at 15th Int. Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS15), August 25-29, 2014, Dresden, Germany