Soft photons from off-shell particles in a hot plasma

Journal Article · Mon Oct 09 00:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.75.2811· OSTI ID:118587

Henning, P A; Quack, E ^[1]

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1. Theory Group, Gesellschaft fuer Schwerionenforschung (GSI), P.O. Box 110552, 64220 Darmstadt (Germany)

Considering the propagation of off-shell particles in the framework of thermal field theory, we present the general formalism for the calculation of the production rate of soft photons and dileptons from a hot plasma. This approach is first illustrated with an electrodynamic plasma. The photon production rate from strongly interacting quarks in the quark-gluon plasma, which might be formed in ultrarelativistic heavy ion collisions, is also calculated. We utilize an effective field theory incorporating dynamical chiral symmetry breaking and obtain results in the previously inaccessible regime of photon energies of the order of the plasma temperature.

• OSTI ID: 118587
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHIRAL SYMMETRY
GLUONS
HEAVY ION REACTIONS
HOT PLASMA
LEPTONS
PARTICLE PRODUCTION
PHOTONS
QUANTUM ELECTRODYNAMICS
QUARKS
SYMMETRY BREAKING