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arXiv · hep-ph/9408348

Exact Sum Rules at Finite Temperature and Chemical Potential and their Application to QCD

S. Huang·M. Lissia
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Abstract

Within the framework of the operator product expansion (OPE) and the renormalization group equation (RGE), we show that the temperature and chemical potential dependence of the zeroth moment of a spectral function (SF) in an asymptotically free theory is completely determined by the one-loop structure of the theory. This exact result constrains the qualitative shape of SF's, and implies striking phenomenological effects near phase transitions.

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S. Huang, M. Lissia. 1994-08-22. Exact Sum Rules at Finite Temperature and Chemical Potential and their Application to QCD. https://arxiv.org/abs/hep-ph/9408348

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