ar X iv : h ep-p h / 04 08 09 4 v 1 6 A ug 2 00 4 Transient photon production in a QGP

@inproceedings{Fraga2004arXI,
  title={ar X iv : h ep-p h / 04 08 09 4 v 1 6 A ug 2 00 4 Transient photon production in a QGP},
  author={Santiago Fraga and François Gelis and Dominique Schiff},
  year={2004}
}
We discuss the shortcomings of a formula that has been used in the literature to compute the number of photons emitted by a hot or dense system during a finite time, and show that the transient effects it predicts for the photon rate are unphys ical. Electromagnetic radiation has long been thought to be a good pr be of the early stages of heavy ion collisions [1]. In recent years, a new “re al-time” approach has been proposed in order to compute out-of-equilibrium effects fo r photon production… CONTINUE READING
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