PERTURBATIVE GLUON SHADOWING IN HEAVY-NUCLEI

We study how much gluon shadowing can be perturbatively generated thro ugh the modified QCD evolution in heavy nuclei. We model in simultaneo usly fusions from independent constituents and from the same constitue nt, both in a proton and in a large loosely bound nucleus of A approxi mately 200. In addition to the actual distributions at small x, we stu dy the ratios of the distributions at an initial scale Q0 = 2 GeV, and show that a strong nuclear shadowing can follow from the modified QCD evolution.