2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/192103We compute the hard photon production rate of a chemically non-equilibrated quark-gluon plasma. We assume that the plasma is already thermally equilibrated, i.~e. describable by a temperature, but with a phase-space distribution that deviates from the Fermi/Bose distribution by a time dependent factor (fugacity). The photon spectrum is obtained by integrating the photon rate over the space-time evolution of the quark-gluon plasma. Some consequences for ultrarelativistic heavy ion collisions are discussed.17 pages, uuencoded Postscript file, figures includedHigh Energy Physics - PhenomenologyNuclear Theorytext