Observation ofT=2Level inMg24as a Compound-Nucleus Resonance

The lowest $T=2$ level in the self-conjugate nucleus $^{24}\mathrm{Mg}$ has been observed as a sharp resonance in the once---$T$-forbidden capture reaction $^{23}\mathrm{Na}(p, \ensuremath{\gamma}){^{24}\mathrm{Mg}_{T=1}}^{*}$ and in the twice-$T$-forbidden elastic scattering $^{23}\mathrm{Na}(p, {p}_{0})^{23}\mathrm{Na}$. The assignment of $J=0$ to this level at ${E}_{x}=15.436\ifmmode\pm\else\textpm\fi{}0.005$ is confirmed by $\ensuremath{\gamma}\ensuremath{-}\ensuremath{\gamma}$ correlation measurements.