On the current correlators in QCD at finite temperature

Abstract

Current correlators in QCD at a finite temperature $T$ are considered from the viewpoint of operator product expansion. It is stressed that at low $T$ the heat bath must be represented by hadronic, and not quark-gluon states. A possibility to express the results in terms of $T$-dependent resonance masses is discussed. It is demonstrated that in order $T^2$ the masses do not move and the only phenomenon which occurs is a parity and isospin mixing.

6 pages, TPI-MINN-92/64-T

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• Chiral Symmetry Restoration and Parity Mixing
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• Operator Product Expansion and Quark-Hadron Duality: Facts and Riddles
• Baryon masses from QCD current correlators at $T\ne 0$
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• The pion at finite temperature
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• The Hadronic Gas Chiral Phase Transition within Generalized Chiral Perturbation Theory
• Electromagnetic Probes of Strongly Interacting Matter
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