Nuclear Gluon Distributions in a Parton Model

Details Nuclear Gluon Distributions in a Parton Model Nuclear Gluon Distributions in a Parton Model

1993-01-22

arxiv.org/abs/hep-ph/9301262v1

Phys.Lett. B298 (1993) 171-175

Physics

High Energy Physics

High Energy Physics - Phenomenology

TEX file (10 pages); Figs.1-3 (TOPDRAWER) can be obtained from the author upon request; preprint IU/NTC 92-21 (PL,B298,171(199

Scientific paper

10.1016/0370-2693(93)91725-3

Gluon distributions in the carbon and tin nuclei are investigated by using a $Q^2$ rescaling model with parton recombination effects. We obtain strong shadowings in the small $x$ region due to the recombinations. The ratio $G_A(x)/G_N(x)$ in the medium $x$ region is typically 0.9 for medium size nuclei. At large $x$, the ratio becomes large due to gluon fusions from different nucleons. Comparisons with recent New Muon Collaboration data for $G_{Sn} (x)/ G_C (x)$ indicate that more accurate experimental data are needed for testing the model.

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