Isospin-symmetry breaking and shape coexistence in $A\approx 70$ analogs

The interplay between isospin-symmetry-breaking and shape-coexistence effects in $A\approx 70$ 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.

Figure 1

The complex excited VAMPIR spectra for the analog states in ${}^{70}\mathrm{Se},{}^{70}\mathrm{Br}$, and ${}^{70}\mathrm{Kr}$ compared with the available data.

Figure 2

The complex excited VAMPIR spectra for the analog states in ${}^{74}\mathrm{Kr},{}^{74}\mathrm{Rb}$, and ${}^{74}\mathrm{Sr}$ compared with the available data.

Figure 3

Occupation of valence spherical orbitals for the analog states in ${}^{70}\mathrm{Se},{}^{70}\mathrm{Br}$, and ${}^{70}\mathrm{Kr}$.

Figure 4

Occupation of valence spherical orbitals for the analog states in ${}^{74}\mathrm{Kr},{}^{74}\mathrm{Rb}$, and ${}^{74}\mathrm{Sr}$.

Figure 5

Comparison of the complex excited VAMPIR results for CED to the experimental data [5, 6, 7, 8, 9, 10, 11].

Figure 6

The complex excited VAMPIR results for MED and TED in the $A=70$ isovector triplet.

Figure 7

The complex excited VAMPIR results for MED and TED in the A=74 isovector triplet compared to data [9, 10, 11, 15].