Scattering amplitudes in hot gauge theories

Journal Article · Mon Sep 11 04:00:00 EDT 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.1129· OSTI ID:5396034

Pisarski, R D ^[1]

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1. Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510 (US)

A consistent method for the perturbative calculation of scattering amplitudes in hot gauge theories is developed. It involves the resummation of a subset of thermal fluctuations, termed hard thermal loops, into effective propagators and vertices. The damping rate of a heavy fermion is computed as an example.

• OSTI ID: 5396034
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 63:11; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BOSONS
ENERGY RANGE
FERMIONS
FIELD THEORIES
FLUCTUATIONS
FUNCTIONS
GAUGE INVARIANCE
INVARIANCE PRINCIPLES
MEV RANGE
MEV RANGE 100-1000
PERTURBATION THEORY
PROPAGATOR
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SCATTERING AMPLITUDES
VARIATIONS
VERTEX FUNCTIONS