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

Abstract

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 ${\hat{I}}^2$-halflives and decay modes, i.e., whether or not ${\hat{I}}^2$-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 ${\hat{I}}^2$-delayed proton branching ratios for ${}^{96}$Ag, ${}^{98}$Ag, and ${}^{98}$Cd at the on-line mass separator at GSI.

4 pages, uses espcrc1.sty. Proceedings of the 4th International Symposium Nuclei in the Cosmos, June 1996, Notre Dame/IN, USA, Ed. M. Wiescher, to be published in Nucl.Phys.A. Also available at ftp://ftp.physics.ohio-state.edu/pub/nucex/nic96-gsi