Isospin-symmetry breaking and shape coexistence inA≈70analogs

Abstract

The interplay between isospin-symmetry-breaking and shape-coexistence effects in $A\ensuremath{\approx}70$ analogs is self-consistently treated within the beyond-mean-field complex excited VAMPIR variational model with symmetry projection before variation using an effective interaction obtained from a $G$ matrix based on the charge-dependent Bonn CD potential. Results are presented on Coulomb energy differences, mirror energy differences, triplet energy differences, and triplet displacement energy in the $A=70$ and $A=74$ isovector triplets.