Thermal QCD sum rules for mesons

Details Thermal QCD sum rules for mesons Thermal QCD sum rules for mesons

2002-05-17

arxiv.org/abs/hep-ph/0205186v1

Phys.Rev. D66 (2002) 056008

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.66.056008

A recently proposed scheme is used to saturate the spectral side of the QCD sum rules derived from the thermal, two-point correlation functions of the vector and the axial-vector currents. At low temperature, it constructs the spectral representation from all the one-loop Feynman diagrams for the two-point functions. The old saturation scheme treats incorrectly some of these contributions. We end up with the familiar QCD sum rules obtained from the difference of the two corresponding vacuum correlation functions. The possibility of obtaining new sum rules in other media is discussed.

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