The rp-process and new measurements of beta-delayed proton decay of light Ag and Cd isotopes

Recent network calculations suggest that a high temperature rp-process could explain the abundances of light Mo and Ru isotopes, which have long challenged models of p-process nuclide production. Important ingredients to network calculations involving unstable nuclei near and at the proton drip line are $\beta$-halflives and decay modes, i.e., whether or not $\beta$-delayed proton decay takes place. Of particular importance to these network calculation are the proton-rich isotopes ${}^{96}$Ag, ${}^{98}$Ag, ${}^{96}$Cd and ${}^{98}$Cd. We report on recent measurements of $\beta$-delayed proton branching ratios for ${}^{96}$Ag, ${}^{98}$Ag, and ${}^{98}$Cd at the on-line mass separator at GSI.