Direct Photons from Hot Quark Matter in Renormalized Finite-Time-Path QED

Abstract

Within the finite-time-path out-of-equilibrium quantum field theory (QFT), we calculate direct photon emission from early stages of heavy ion collisions, from a narrow window, in which uncertainty relations are still important and they provide a new mechanism for production of photons. The basic difference with respect to earlier calculations, leading to diverging results, is that we use renormalized QED of quarks and photons. Our result is a finite contribution that is consistent with uncertainty relations.

arXiv comment17 pages, 1 figure

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Cited by in corpus (4)

• Probes of the quark-gluon plasma and plasma instabilities
• Neutrino Oscillations in Finite Time Path Out-of-Equilibrium Thermal Field Theory
• Finite time path field theory and a new type of universal quantum spin chain quench behavior
• Finite time path field theory perturbative methods for local quantum spin chain quenches