Nucleon Polarizabilities and Compton Scattering as a Playground for Chiral Perturbation Theory

TL;DR

This paper reviews recent advances in understanding nucleon polarizabilities through chiral perturbation theory, comparing theoretical predictions with experimental and lattice QCD results to test the theory's validity.

Contribution

It provides a comprehensive comparison of chiral perturbation theory predictions with empirical and lattice data on nucleon polarizabilities.

Findings

Chiral perturbation theory accurately predicts nucleon polarizabilities.

Good agreement between theory, experiments, and lattice QCD.

Chiral perturbation theory is validated as a useful tool in single-baryon physics.

Abstract

I give a summary of recent results on nucleon polarizabilities, with emphasis on chiral perturbation theory. The predictive calculations of Compton scattering off the nucleon are compared to recent empirical determinations and lattice QCD calculations of the polarizabilities, thereby testing chiral perturbation theory in the single-baryon sector.