Spectrum of hot hadronic matter in the axial channel from QCD sum rules at finite temperature

We analyze QCD sum rules at finite temperature in the axial channel. We show that in hot hadronic matter at a temperature T/sub cr/--140 MeV characteristic changes of the spectrum in the axial channel take place, similar to the changes of the spectrum in the vector channel found earlier. We also show that the temperature dependence of the effective coupling constant f/sub π/(T) is determined mainly by the behavior of the quark and gluon field condensates at nonzero temperature