Abstract
We compare two formalism that describe minijet production in pA and AA: pQCD supplemented by Glauber-Gribov multiple semi-hard parton scatterings (pQCD + Glauber), and the Color 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.
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Accardi, A., Gyulassy, M. An interpretation of saturation phenomena as Glauber-Gribov multiple parton scatterings. Acta Phys. Hung. A 21, 125–130 (2004). https://doi.org/10.1556/APH.21.2004.2-4.5
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DOI: https://doi.org/10.1556/APH.21.2004.2-4.5