Shape Coexistence in Pb186: Beyond-mean-field description by configuration mixing of symmetry restored wave functions

Abstract

We study shape coexistence in Pb186 using configuration mixing of angular-momentum and particle-number projected self-consistent mean-field states. The same Skyrme interaction SLy6 is used everywhere in connection with a density-dependent zero-range pairing force. The model predicts coexisting spherical, prolate and oblate 0+ states at low energy.

Comments: 5 pages REVTEX4, 4 eps figures, accepted by Phys. Lett. B. Revised version with some polishing of the text without changing its content