Generalized forward scattering amplitudes in QCD at high temperature

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.2453· OSTI ID:538684

Brandt, F T; Frenkel, J ^[1]

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1. Instituto de Fisica, Universidade de Sao Paulo, Sao Paulo, 05389-970 SP (Brazil)

We extend to a general class of covariant gauges an approach which relates the thermal Green functions to forward scattering amplitudes of thermal particles. A brief discussion of the nontransversality of the thermal gluon polarization tensor is given in this context. This method is then applied to the calculation of the ln(T) contributions associated with general configurations of two- and three-point gluon functions. The results are Lorentz covariant and have the same structure as the ultraviolet divergent contributions which occur at zero temperature. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 538684
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 4 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
GLUONS
GREEN FUNCTION
LORENTZ INVARIANCE
POLARIZATION
QUANTUM CHROMODYNAMICS
SCATTERING AMPLITUDES
TENSORS
ULTRAVIOLET DIVERGENCES