Open questions in QCD at high parton density
arXiv:1212.3482 · doi:10.1016/j.nuclphysa.2013.01.075
Abstract
I present the state of our understanding of the QCD dynamics at play in the parton saturation regime of nuclear wave functions. I explain what are the biggest open questions in the field, their intrinsic interest, but also why is it important to answer them from the quark-gluon-plasma physicists' perspective. Focusing on those aspects that proton-nucleus collisions cannot investigate to a satisfactory degree, I show that future high-energy electron-ion colliders have the potential to address these questions, providing thorough answers in most cases, and exploratory measurements otherwise.
8 pages, 9 figures, Proceedings of the 23rd International Conference on Ultra-Relativistic Nucleus Nucleus Collisions (QM12), Washington DC, USA, August 13-18 2012
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