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arXiv · nucl-th/9511016

Low-energy QCD: Chiral coefficients and the quark-quark interaction

M. R. Frank·T. Meissner
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Abstract

A detailed investigation of the low-energy chiral expansion is presented within a model truncation of QCD. The truncation allows for a phenomenological description of the quark-quark interaction in a framework which maintains the global symmetries of QCD and permits a $1/N_c$ expansion. 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, $α(q^2)$, in the infrared region. The pattern in the coefficients that arises at tree level is consistent with large $N_c$ QCD, and is related to the model truncation.

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M. R. Frank, T. Meissner. 1995-11-14. Low-energy QCD: Chiral coefficients and the quark-quark interaction. https://doi.org/10.1103/physrevc.53.2410

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