  We compare two formalism that describe minijet production in pA and AA
collisions: pQCD supplemented by Glauber-Gribov multiple semihard parton
scatterings (pQCD+Glauber), and the Colour Glass Condensate (CGC). We argue
that in a suitable limit they are equivalent to each other, the PQCD+Glauber
model being more accurate from a numerical point of view. Finally, we analyze
RHIC data on Au-Au integrated charged multiplicities in the pQCD+Glauber
framework, and conclude that at least at central rapidity there is no sign of
gluon saturation.
