Electromagnetic baryon form factors in the Poincare-covariant Faddeev approach

TL;DR

This paper calculates electromagnetic properties of baryons using a Poincare-covariant three-quark model with a rainbow-ladder approximation, providing insights into baryon structure from QCD principles.

Contribution

It introduces a unified approach to study baryon electromagnetic form factors within a Poincare-covariant Faddeev framework using rainbow-ladder truncation.

Findings

Computed electromagnetic form factors for spin-1/2 and spin-3/2 baryons.

Demonstrated consistency with experimental data and QCD expectations.

Provided a foundation for future studies of baryon structure.

Abstract

Baryons are treated as three-quark systems using QCD degrees of freedom in Poincare-covariant bound-state equations. The quark self-energy as well as the interaction between quarks are approximated by a vector-vector interaction via a single dressed-gluon exchange (rainbow-ladder truncation), thereby allowing a unified study of quark, meson and baryon properties. Here we will focus on the calculation of electromagnetic properties of spin-1/2 and spin-3/2 ground state baryons.