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arXiv · hep-ph/9608226

Chiral perturbation theory

Gerhard Ecker
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Abstract

After a general introduction to the structure of effective field theories, the main ingredients of chiral perturbation theory are reviewed. Applications include the light quark mass ratios and pion-pion scattering to two-loop accuracy. In the pion-nucleon system, the linear sigma model is contrasted with chiral perturbation theory. The heavy-nucleon expansion is used to construct the effective pion-nucleon Lagrangian to third order in the low-energy expansion, with applications to nucleon Compton scattering.

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Gerhard Ecker. 1996-08-05. Chiral perturbation theory. https://arxiv.org/abs/hep-ph/9608226

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