Nuclear reactions of silver with 11.5-GeV protons

The interaction of silver with 11.5-GeV protons was studied and formation cross sections of 72 radionuclides were determined by direct assay of the target with a Ge(Li) $\gamma$-ray spectrometer followed by computer analysis of the spectra. The data were used to construct charge-dispersion and mass-yield curves. Comparison with previous radiochemical studies performed with 29-GeV protons indicates good agreement between the two techniques. The data are compared with Rudstam systematics. This formulation preducts a much steeper decrease in isobaric cross sections with decreasing $A$ than is observed experimentally.