On QCD Predictions for the Chiral Lagrangian Coefficients

Details On QCD Predictions for the Chiral Lagrangian Coefficients On QCD Predictions for the Chiral Lagrangian Coefficients

2002-09-18

arxiv.org/abs/hep-ph/0209201v1

J.Phys. G28 (2002) L55-

Physics

High Energy Physics

High Energy Physics - Phenomenology

5-page RevTex file. To appear in J. Phys. G 28 (2002)

Scientific paper

10.1088/0954-3899/28/11/101

Based on a previous study of deriving the chiral Lagrangian (CL) from QCD, we illustrate the main feature of QCD predictions for the CL coefficients (CLC) in certain approximations. We first show that, in the large-N(c) limit, the anomaly part contributions to the CLC are exactly cancelled by certain terms in the normal part contributions (NPC), so that the final results only concern the remaining NPC depending on QCD interactions. We then do the calculation in a simple approach with further approximations. The obtained CLC and quark condensate are consistent with the experiments.

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