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arXiv · hep-ph/9811242

Gluon- vs. Sea quark-Shadowing

N. Hammon·H. Stöcker·W. Greiner
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Abstract

We calculate the shadowing of sea quarks and gluons and show that the shadowing of gluons is {\it not} simply given by the sea quark shadowing, especially at small $x$. The calculations are done in the lab frame approach by using the generalized vector meson dominance model. Here the virtual photon turns into a hadronic fluctuation long before the nucleus. The subsequent coherent interaction with more than one nucleon in the nucleus leads to the depletion $σ(γ^* A) < Aσ(γ^* N)$ known as shadowing. A comparison of the shadowing of quarks to E665 data for $^{40}Ca$ and $^{207}Pb$ shows good agreement.

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N. Hammon, H. Stöcker, W. Greiner. 1998-11-04. Gluon- vs. Sea quark-Shadowing. https://doi.org/10.1016/s0370-2693(99)00059-3

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