T(r)opical Dyson-Schwinger Equations

TL;DR

This paper reviews recent advances in hadron physics using QCD's Dyson-Schwinger equations, highlighting progress in understanding in-hadron condensates, quark moments, hadron mass correlations, and distribution functions.

Contribution

It presents new insights into hadron structure and QCD phenomena through Dyson-Schwinger equations, including solutions to longstanding problems and novel predictions.

Findings

In-hadron condensates offer a potential solution to the cosmological constant problem.

Dynamical quark moments significantly affect the proton form factor ratio.

Correlated calculations of meson and baryon masses improve understanding of hadron spectra.

Abstract

We provide a glimpse of recent progress in hadron physics made using QCD's Dyson-Schwinger equations, reviewing: the notion of in-hadron condensates and a putative solution of a gross problem with the cosmological constant; the dynamical generation of quark anomalous chromo- and electro-magnetic moments, and their material impact upon the proton's electric/magnetic form factor ratio; a computation that simultaneously correlates the masses of meson and baryon ground- and excited-states; and a prediction for the x->1 value of the ratio of neutron/proton distribution functions.