Another walk through the world of chiral dynamics

TL;DR

This paper reviews recent advances in chiral dynamics, including pion-pion scattering, baryon resonance widths, charm-strange mesons, and pion-nucleon sigma-term, highlighting new theoretical insights and lattice QCD tests.

Contribution

It provides an overview of recent developments in chiral dynamics, emphasizing calculations and insights that extend the understanding of meson and baryon interactions.

Findings

Analysis of S-wave, isospin-zero pion-pion scattering

Calculation of light baryon resonance widths at two loops

Discussion of flavor decomposition of the pion-nucleon sigma-term

Abstract

Chiral dynamics is a pretty mature field. Nonetheless, there are many exciting new developments. In this opening talk, I consider S-wave, isospin-zero pion-pion scattering and the calculation of the width of the lightest baryon resonances at two loops. New insights into the chiral dynamics of charm-strange mesons are discussed as well as recent results on the flavor decomposition of the pion-nucleon $\sigma$-term. I end with a short wish-list of lattice QCD tests pertinent to chiral dynamics.