# A note on scalar meson dominance

## TL;DR

This paper investigates the role of a broad sigma meson within chiral perturbation theory to understand how scalar resonances influence the scalar form factors of pions and nucleons, shedding light on resonance saturation.

## Contribution

It introduces an explicit broad sigma meson into chiral perturbation theory to analyze its impact on scalar form factors and resonance saturation in the scalar sector.

## Key findings

- Sigma meson significantly affects scalar form factors.
- Resonance saturation is supported by the sigma meson's contribution.
- Enhanced understanding of scalar resonance dynamics in low-energy QCD.

## Abstract

We consider chiral perturbation theory with an explicit broad $\sigma$-meson and study its contribution to the scalar form factors of the pion and the nucleon. Our goal is to learn more about resonance saturation in the scalar sector.