Impact of dynamical chiral symmetry breaking on meson structure and interactions

TL;DR

This paper reviews recent advances in meson physics using Dyson-Schwinger equations, focusing on confinement, dynamical chiral symmetry breaking, meson mass spectra, and form factors, highlighting the theoretical progress in understanding hadron structure.

Contribution

It provides a comprehensive overview of how Dyson-Schwinger equations elucidate meson properties and the role of DCSB in hadron physics, including new insights into meson masses and form factors.

Findings

Calculated meson masses including nd nd excitations

Demonstrated impact of DCSB on pion form factor

Discussed in-hadron condensates and confinement mechanisms

Abstract

We provide a glimpse of recent progress in meson physics made via QCD's Dyson-Schwinger equations with: a perspective on confinement and dynamical chiral symmetry breaking (DCSB); a pre'cis on the physics of in-hadron condensates; results for the masses of the \pi, \sigma, \rho, a_1 mesons and their first-radial excitations; and an illustration of the impact of DCSB on the pion form factor.