Remarks on transient photon production in heavy ion collisions
arXiv:hep-ph/0312222 · doi:10.1103/PhysRevD.71.085015
Abstract
In this note, we discuss the derivation of a formula that has been used in the literature in order to compute the number of photons emitted by a hot or dense system during a finite time. Our derivation is based on a variation of the standard operator-based -matrix approach. The shortcomings of this formula are then emphasized, which leads to a negative conclusion concerning the possibility of using it to predict transient effects for the photon rate.
arXiv comment13 pages
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