Measurements of theADependence of Deep-Inelastic Electron Scattering from Nuclei

The deep-inelastic electron-scattering cross sections per nucleon ${\sigma }_A$ for D, He, Be, C, A1, Ca, Fe, Ag, and Au were measured in the kinematic range $0.09<~x<~0.9$ and $2<~Q^2<~15$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$ with use of electrons with energies ranging from 8 to 24.5 GeV. The ratio $\frac{{\sigma }_A}{{\sigma }_{\mathrm{D}}}$ is consistent with unity in the range $0.1<x<\mathrm{}0.3\mathrm{}$. For $0.3<x<\mathrm{}0.8\mathrm{}$, the ratio decreases logarithmically with atomic weight $A$, or linearly with average nuclear density. No $Q^2$ dependence in the ratio was observed over the kinematic range of the data.