Resolving anomalous collectivity in the $4_1^{+}$ to $2_1^{+}$ transition of ${}^{58}$Fe

J. A. Woodside, B. J. Coombes, A. E. Stuchbery +7

The low-excitation states of atomic nuclei in the region around the $N=Z=28$ shell closure are generally well described by the shell model. Most experimental observables in the…