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Low-Energy QCD: Chiral Coefficients, UA(1)-Breaking and the Quark-Quark Interaction

Thomas Meissner·Michael Frank
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Abstract

A detailed investigation of the low-energy chiral expansion is presented within a model truncation of QCD. The model dependence of the chiral coefficients is tested for several forms of the quark-quark interaction by varying the form of the running coupling in the infrared region. Furthermore we demonstrate how the UA(1)$ anomaly and a mass for the eta' can arise in this approach.

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Thomas Meissner, Michael Frank. 1996-06-25. Low-Energy QCD: Chiral Coefficients, UA(1)-Breaking and the Quark-Quark Interaction. https://arxiv.org/abs/hep-ph/9606430

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