Thermal photon production rate from nonequilibrium quantum field theory

1997/04/08 by R. Baier, M. Dirks, K. Redlich +1 · 4 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #High-Energy Particle Collisions Research #Quantum Electrodynamics and Casimir Effect #hep-ph

paper · pdf · doi:10.1103/physrevd.56.2548

published as Phys.Rev. D56 (1997) 2548-2554 · 10 pages RevTex, 2 ps figures included

arxiv created 1997/04/08 · openalex publication_date 1997/09/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

In the framework of closed time path thermal field theory we investigate the production rate of hard photons from a QCD plasma away from equilibrium. Dynamical screening provides a finite rate for chemically nonequilibrated distributions of quarks and gluons just as it does in the equilibrium situation. Pinch singularities are shown to be absent in the real photon rate even away from equilibrium.

Cited by

• Closed-time path integral formalism and medium effects of nonequilibrium QCD matter
• Remarks on transient effects for photon production in heavy ion collisions
• Out-of-equilibrium electromagnetic radiation
• Kinetic equilibration in heavy ion collisions: the role of elastic processes