Test of a scaling law for quasi-elastic electron scattering

A simple scaling law for quasi-elastic scattering is tested by deep-inelastic scattering on ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$. Data taken at widely different scattering angles and bombarding energies can be combined to yield a simple function of one variable. Systematic comparison of low- and high-energy data may permit isolation of the contribution from the single-particle knockout process.