Thermal QCD sum rules for mesons
高能物理 - 唯象学
2009-11-07 v1
摘要
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.
引用
@article{arxiv.hep-ph/0205186,
title = {Thermal QCD sum rules for mesons},
author = {S. Mallik and Sourav Sarkar},
journal= {arXiv preprint arXiv:hep-ph/0205186},
year = {2009}
}