SHADOWING EFFECTS IN DEEP-INELASTIC LEPTON-NUCLEUS SCATTERING

We investigate the shadowing phenomenon observed in deep inelastic lepton-nucleus scattering in the region of small x using a generalization of the vector meson dominance model which includes both the low mass vector meson resonances and the higher mass quark-antiquark continuum in the photon spectral function. Our description is consistent with the nucleon structure function F2N(Q2,x) in the low x region, including its scaling properties. We find that the nuclear multiple scattering of hadronic components of the virtual photon reproduces the experimental data for F2A/AF2N at x<0.1. © 1990 The American Physical Society.