Lifetimes of yrast and excited superdeformed states in ?Gd: effect of particle-hole excitations on the deformation

The quadrupole moments and deformations have been measured for six superdeformed bands in Gd-150. The results indicate evidence for deformation driving properties of both the high-hi intruder and also low-N natural parity states at the superdeformed Fermi surface. Several new transitions have been identified and placed in the low spin non-yrast portion of one of the SD bands. (C) 1998 Published by Elsevier Science B.V.