Gluon versus sea quark shadowing

We calculate the shadowing of sea quarks and gluons and show that the shadowing of gluons is not simply given by the sea quark shadowing, especially at small x. The calculations are done in the lab frame approach by usin
We calculate the shadowing of sea quarks and gluons and show that the shadowing of gluons is 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 sigma(gamma*A )< A*sigma(gamma * N) known as shadowing. A comparison of the shadowing of quarks to E665 data for 40Ca and 207Pb shows good agreement.
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Metadaten
Author:Nils Hammon, Horst Stöcker, Walter Greiner
URN:urn:nbn:de:hebis:30-22790
Document Type:Article
Language:English
Date of Publication (online):2005/12/06
Year of first Publication:1999
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/12/06
Tag:gluon ; hadronic fluctuation; quark shadowing
SWD-Keyword:Gluon ; Hadron; Quark ; Schwankung
Source:Phys.Lett.B488: 290-294,1999.
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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