Measurement of Electron Scattering in Carbon to Compare with a Muon Experiment

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Abstract
A measurement of the inelastic scattering of high-energy electrons in carbon has been carried out with the express purpose of obtaining an experimental cross section to compare with a recently-completed measurement of muon scattering. A scaling law which connects the electron result with the (higher-energy) muon result is described. Results for the summed (elastic plus all inelastic) cross section at two values of the muon scattering angle are presented. At the smaller angle (momentum transfer ∼200 Mev/c) agreement with the theoretical (Drell-Schwartz) sum rule is good; at the larger one (∼280 Mev/c) it is poorer but within the experimental and theoretical uncertainties. Comparison with the muon results does not alter the previous conclusion: That no muon scattering anomaly is seen.