Beta-delayed proton decay of ${}_{}{}^{25}{}_{}{}^{}\mathrm{Si}$

We have measured the beta-delayed proton spectrum arising from ${}_{}{}^{25}{}_{}{}^{}\mathrm{Si}$ produced in the ${}_{}{}^{24}{}_{}{}^{}\mathrm{Mg}$${(}^3$He,2n) reaction. Utilization of a new low-energy proton detector has permitted the observation of protons from 250 to 6000 keV. Most proton groups have been placed into a decay scheme by using penetrability calculations and transitions from the mirror beta decay, ${}_{}{}^{25}{}_{}{}^{}\to _{}^{25}{}_{}{}^{}$Mg. This placement permits the construction of the Gamow-Teller strength function which we compare to a beta strength function calculated from complete-space s-d shell model wave functions.