Initial conditions in AA and pA collisions
Lappi, T. (2017). Initial conditions in AA and pA collisions. In Y. Foka, N. Brambilla, & V. Kovalenko (Eds.), XIIth Quark Confinement and the Hadron Spectrum - Proceedings (pp. 07013). EPJ Web of Conferences, 137. EDP Sciences. doi:10.1051/epjconf/201713707013
Published inEPJ Web of Conferences;137
© The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0.
A full understanding of the spacetime evolution of the QCD matter created in a heavy ion collision requires understanding the properties of the initial stages. In the weak coupling picture these are dominated by classical gluon fields, whose properties can also be studied via the scattering of dilute probes off a high energy hadron or nucleus. A particular challenge is understanding small systems, where LHC data is also showing signs of collective behavior. We discuss some recent results of on the initial matter production and thermalization in heavy ion collisions, in particular in the gluon saturation framework.