Empirical Fit to electron-nucleus scattering

Abstract

An empirical fit to electron-nucleus scattering for $A>2$ is made based on world data. It is valid for $0<W<3.2$ GeV and $0.2<Q^2<5$ GeV${}^2$, and can be used with caution at lower $Q^2$. The fit is based on previous empirical fits to electron-proton and electron-neutron scattering, taking into account the effects of Fermi motion plus a substantial extra contribution that fills in the dip between the quasi-elastic peak and the $\Delta (1232)$ resonance.

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