Centrality dependence of multiplicities in ultrarelativistic nuclear   collisions
  We compute the centrality dependence of multiplicities of particles produced in ultrarelativistic nuclear collisions at various energies and atomic numbers. The computation is carried out in perturbative QCD with saturated densities of produced gluons and by including effects of nuclear geometry. Numbers are given for Au+Au collisions at RHIC energies. 
K.J. Eskola, K. Kajantie and K. Tuominen