How brightly does the Glasma shine? Photon production off-equilibrium
arXiv:1704.04032 · doi:10.1016/j.nuclphysa.2017.04.034
Abstract
We present a parametric estimate of photon production at early times in heavy-ion collisions based on a consistent weak coupling thermalization scenario. We quantify the contribution of the off-equilibrium Glasma phase relative to that of a thermalized Quark-Gluon Plasma. Taking into account the constraints from charged hadron multiplicity data, the Glasma contribution is found to be significant especially for large values of the saturation scale.
4 pages, 4 figures, proceedings for Quark Matter 2017