We use a weak-coupling procedure and results of a shell-model calculation to compute the two-proton separation energy of ${}^{19}\mathrm{Mg}$. Our result is at the upper end of the previous range, but ${}^{19}\mathrm{Mg}$ is still bound for single proton decay to ${}^{18}\mathrm{Na}$. We also calculate the $2p$ decay width.

• Received 27 July 2006

DOI:https://doi.org/10.1103/PhysRevC.76.014313