First Evidence of Axial Shape Asymmetry and Configuration Coexistence in ${}^{74}$Zn: Suggestion for a Northern Extension of the $N=40$ Island of Inversion

M. Rocchini, P. E. Garrett, M. Zielinska +41

The excited states of $N=44$ ${}^{74}$Zn were investigated via $\gamma$-ray spectroscopy following ${}^{74}$Cu $\beta$ decay. By exploiting $\gamma$-$\gamma$ angular correlation analysis, the $2_2^{+}$, $3…