Chiral Perturbation Theory: a Primer

TL;DR

This paper provides a pedagogical introduction to chiral perturbation theory, a method exploiting QCD's chiral symmetry to connect theoretical predictions with low-energy particle physics experiments.

Contribution

It offers a clear, introductory overview of chiral perturbation theory techniques for researchers and students new to the field.

Findings

Explains how chiral symmetry constrains low-energy QCD interactions.

Demonstrates the application of effective field theory methods.

Provides foundational knowledge for further research in particle phenomenology.

Abstract

Recently methods have been developed which exploit the chiral symmetry of QCD in order to make rigorous contact with low energy particle physics phenomenology. In these lectures we present a pedagogical introduction to these techniques.