Nonperturbative Effects in QCD at $T>0$

Abstract

The background field formalism is used to implement nonperturbative QCD contributions into diagrammatic technic at $T>0$. The leading terms both in the confining and nonconfining phase are identified at large $N_c$ and the transition temperature is calculated in this limit, which appears to be in good agreement with the Monte Carlo calculations.

Comments: 22 pages, preprint ITEP-03-93