Nuclear Gluon Distributions in a Parton Model
نویسنده
چکیده
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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