Operator product expansion at finite temperature

Preprint

31 October 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9710556

Abstract

We extend an earlier, configuration space method to find the Wilson coefficients of operators appearing in the short distance expansion of thermal correlation functions of different quark bilinears. Considering all the different correlation functions, there arise, up to dimension four, two new operators, in addition to the two appearing already in the vacuum correlation functions. They would contribute substantially to the QCD sum rules, when the temperature is not too low.

Keywords

TEMPERATURE IS NOT TOO LOW
CORRELATION FUNCTIONS
CONFIGURATION SPACE
FINITE TEMPERATURE
PRODUCT EXPANSION
OPERATOR PRODUCT
SPACE METHOD
VACUUM
QCD

All Related Versions

Version 1, 1997-10-31, ArXiv
Published version: Physics Letters B, 416 (3-4), 373.

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