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How brightly does the Glasma shine? Photon production off-equilibrium (1704.04032v2)
Published 13 Apr 2017 in nucl-th and hep-ph
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.
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