Abstract

The ${\mathit{T}}_{\mathit{z}}$=-3/2, A=4n+1 nuclide $^{73}\mathrm{Sr}$ produced in the $^{40}\mathrm{Ca}$${(}^{36}$Ar,3n) reaction has been observed via beta-delayed proton emission. A single proton group at a laboratory energy of 3.75\ifmmode\pm\else\textpm\fi{}0.04 MeV has been observed, corresponding to decay of the T=3/2 isobaric analog state in $^{73}\mathrm{Rb}$ to the ground state of $^{72}\mathrm{Kr}$. Combining this measurement with a Coulomb displacement energy calculation yields a mass excess for $^{73}\mathrm{Sr}$ of -31.82\ifmmode\pm\else\textpm\fi{}0.24 MeV based on a predicted mass for $^{72}\mathrm{Kr}$ of -53.94\ifmmode\pm\else\textpm\fi{}0.24 MeV.

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