Superallowed $0^{+}\to 0^{+}$ $\beta$ decay of $T=2$ ${}^{20}$Mg: $Q_{\text{EC}}$ value and $\beta \gamma$ branching

B. E. Glassman, D. Pérez-Loureiro, C. Wrede +18

\textbf{Background}: Superallowed $0^{+}\to 0^{+}$ $\beta$ decays of isospin $T=2$ nuclides can be used to test theoretical isospin symmetry breaking corrections applied to extrac…