High-temperature Yang-Mills theories and three-dimensional quantum chromodynamics

  title={High-temperature Yang-Mills theories and three-dimensional quantum chromodynamics},
  author={Thomas Appelquist and Robert D. Pisarski},
  journal={Physical Review D},
We demonstrate that for sufficiently high temperature T the behavior of any four-dimensional gauge theory with small coupling constant a, at distances beyond the electrical Debye screening length j/sub D/approx.1/..sqrt..a-barT, is determined precisely by the corresponding three-dimensional theory. This is the magnetic sector of the original theory, and in the non-Abelian case it is a Yang-Mills theory like three-dimensional quantum chromodynamics (QCD/sub 3/). We study QCD/sub 3/ in the loop… 
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