Angular intricacies in hot gauge field theories
classification
✦ hep-ph
keywords
angularfieldgaugetheoriesarguedaveragescalculationscall
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It is argued that in hot gauge field theories, "Hard Thermal Loops" leading order calculations call for a definite sequence of angular averages and discontinuity (or Imaginary part prescription) operations, and run otherwise into incorrect results. The ten years old collinear singularity problem of hot $QCD$, provides a striking illustration of that fate.
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