From Classical to Quantum Saturation in the Nuclear Gluon Distribution

Abstract

We study the gluon content of a large nucleus (i) in the semi-classical McLerran-Venugopalan model and (ii) in the high energy limit as given by the quantum evolution of the Color Glass Condensate. We give a simple and qualitative description of the Cronin effect and high-pT suppression in proton-nucleus collisions.

4 pages, 5 figures, To appear in the Proceedings of International Conference on Hard and Electromagnetic Probes of High Energy Nuclear Collisions (HP2004), Ericeira, Portugal, 4-10 Nov, 2004

References in corpus (8)

• Evolution of the nuclear modification factors with rapidity and centrality in d+Au collisions at $\sqrt{s_{NN}} = 200 GeV
• Geometric scaling as traveling waves
• High energy pA collisions in the color glass condensate approach I. Gluon production and the Cronin effect
• Nuclear Modification Factor in d+Au Collisions: Onset of Suppression in the Color Glass Condensate
• Universal features of JIMWLK and BK evolution at small x
• Universal behavior of QCD amplitudes at high energy from general tools of statistical physics
• Small-x physics beyond the Kovchegov equation
• Cronin effect and high-p_T suppression in the nuclear gluon distribution at small x