Production of soft dileptons in the quark-gluon plasma

Journal Article · Mon May 07 00:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.2242· OSTI ID:7095967

Braaten, E; Pisarski, R D; Yuan, T C ^[1]

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1. Department of Physics and Astronomy, Northwestern University, Evanston, IL (USA) Department of Physics, Brookhaven National Laboratory, Upton, NY (USA)

The production rate for soft dileptons in a hot quark-gluon plasma is computed to leading order in the QCD coupling constant through a systematic resummation of perturbation theory. The partial rate from the annihilation and decay of soft quarks and antiquarks exhibits unexpected structure---sharp peaks due to Van Hove singularities. These peaks are overwhelmed by the partial rate from processes involving hard quarks and gluons. The total rate for soft dileptons is larger than the naive one-loop prediction by orders of magnitude.

• DOE Contract Number: AC02-76ER02289
• OSTI ID: 7095967
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:19; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

653002* -- Nuclear Theory-- Nuclear Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BOSONS
CHARGED-PARTICLE REACTIONS
DISPERSIONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GLUONS
HEAVY ION REACTIONS
INTERACTIONS
LEPTONS
MATTER
NUCLEAR REACTIONS
PAIR PRODUCTION
PARTICLE INTERACTIONS
PERTURBATION THEORY
PLASMA
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MATTER
QUARK-ANTIQUARK INTERACTIONS
QUARK-GLUON INTERACTIONS