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arXiv · hep-ph/0312222

Remarks on transient photon production in heavy ion collisions

E. Fraga·F. Gelis·D. Schiff
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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 $S$-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.

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E. Fraga, F. Gelis, D. Schiff. 2003-12-16. Remarks on transient photon production in heavy ion collisions. https://doi.org/10.1103/physrevd.71.085015

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