Interplay of Soft and Hard Interactions in Nuclear Shadowing at High $Q^2$ and Low x

摘要

Nuclear shadowing corrections are dominated by soft interaction and grow asfunction of $1/x$ more slowly than the single scattering term, which has anessential contribution from hard interaction. Therefore, we predict vanishingnuclear shadowing at very low $x$ provided that $Q^2$ is high and fixed. At thesame time, at medium and low $Q^2$, nuclear shadowing grows with $1/x$ as iswell known for soft hadronic interactions.