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arXiv · 2211.17031

Chiral perturbation theory

Stefan Scherer·Matthias R. Schindler
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Abstract

Chiral perturbation theory (ChPT) is an effective field theory that describes the properties of strongly-interacting systems at energies far below typical hadron masses. The degrees of freedom are hadrons instead of the underlying quarks and gluons. ChPT is a systematic and model-independent approximation method based on an expansion of amplitudes in terms of light-quark masses and momenta. The following is a brief overview of ChPT that is largely based on Scherer, Schindler, Lect. Notes Phys. 830 (2012), which can be referred to for a more detailed introduction.

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Stefan Scherer, Matthias R. Schindler. 2022-11-30. Chiral perturbation theory. https://arxiv.org/abs/2211.17031

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