Generalized forward scattering amplitudes in QCD at high temperature
F. T. Brandt, J. Frenkel
TL;DR
This paper develops a covariant gauge approach to relate thermal Green functions to forward scattering amplitudes in QCD at high temperature, analyzing gluon polarization and temperature-dependent contributions.
Contribution
It introduces a generalized method for calculating thermal Green functions in covariant gauges, extending previous approaches to high-temperature QCD.
Findings
Derived Lorentz covariant expressions for ln(T) contributions
Analyzed non-transversality of thermal gluon polarization tensor
Connected thermal and zero-temperature ultraviolet divergences
Abstract
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 non-transversality 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 2 and 3-point gluon functions. The results are Lorentz covariant and have the same structure as the ultraviolet divergent contributions which occur at zero temperature.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.