Nuclear reactions of silver with 300-GeV protons

The interaction of silver with 300-GeV protons was studied and compared with that of 11.5-GeV protons. Cross section ratios, $\frac{{\sigma }_{300}}{{\sigma }_{11.5}}$, were determined for 74 nuclides ranging from ${}_{}{}^7{}_{}{}^{}\mathrm{Be}$ to ${}_{}{}^{106}{}_{}{}^{}\mathrm{Ag}_{}^m{}_{}{}^{}$. The weighted average value of $\frac{{\sigma }_{300}}{{\sigma }_{11.5}}$ is 1.01±0.10. A detailed examination of the dependence of the ratios on product $A$ and $\frac{N}{Z}$ reveals that the only difference occurs in the $A\sim 20-30$ mass region, where a 17±5% increase in cross sections is observed at 300 GeV.