Diquark correlations in hadron physics: Origin, impact and evidence

MY Barabanov, MA Bedolla, WK Brooks… - Progress in Particle and …, 2021 - Elsevier
The last decade has seen a marked shift in how the internal structure of hadrons is
understood. Modern experimental facilities, new theoretical techniques for the continuum …

The infrared behaviour of QCD Green's functions: confinement, dynamical symmetry breaking, and hadrons as relativistic bound states

R Alkofer, L Von Smekal - Physics Reports, 2001 - Elsevier
Recent studies of QCD Green's functions and their applications in hadronic physics are
reviewed. We discuss the definition of the generating functional in gauge theories, in …

Baryons as relativistic three-quark bound states

G Eichmann, H Sanchis-Alepuz, R Williams… - Progress in Particle and …, 2016 - Elsevier
We review the spectrum and electromagnetic properties of baryons described as relativistic
three-quark bound states within QCD. The composite nature of baryons results in a rich …

Dyson-Schwinger equations: Density, temperature and continuum strong QCD

CD Roberts, SM Schmidt - Progress in Particle and Nuclear Physics, 2000 - Elsevier
Continuum strong QCD is the application of models and continuum quantum field theory to
the study of phenomena in hadronic physics, which includes; eg, the spectrum of QCD …

A solution to coupled Dyson–Schwinger equations for gluons and ghosts in Landau gauge

L von Smekal, A Hauck, R Alkofer - Annals of Physics, 1998 - Elsevier
A truncation scheme for the Dyson–Schwinger equations of QCD in Landau gauge is
presented which implements the Slavnov–Taylor identities for the 3-point vertex functions …

Light baryon spectroscopy

A Thiel, F Afzal, Y Wunderlich - Progress in Particle and Nuclear Physics, 2022 - Elsevier
This review treats the advances in Light Baryon Spectroscopy of the last two decades, which
were mainly obtained by measuring meson-production reactions at photon facilities all over …

Nucleon mass from a covariant three-quark Faddeev equation

G Eichmann, R Alkofer, A Krassnigg, D Nicmorus - Physical review letters, 2010 - APS
We report the first study of the nucleon where the full Poincaré-covariant structure of the
three-quark amplitude is implemented in the Faddeev equation. We employ an interaction …

Nucleon axial-vector and pseudoscalar form factors and PCAC relations

C Chen, CS Fischer, CD Roberts, J Segovia - Physical Review D, 2022 - APS
We use a continuum quark+ diquark approach to the nucleon bound-state problem in
relativistic quantum field theory to deliver parameter-free predictions for the nucleon axial …

Nucleon electromagnetic form factors from the covariant Faddeev equation

G Eichmann - Physical Review D—Particles, Fields, Gravitation, and …, 2011 - APS
We compute the electromagnetic form factors of the nucleon in the Poincaré-covariant
Faddeev framework based on the Dyson-Schwinger equations of QCD. The general …

Light baryons and their excitations

G Eichmann, CS Fischer, H Sanchis-Alepuz - Physical Review D, 2016 - APS
We study ground states and excitations of light octet and decuplet baryons within the
framework of Dyson-Schwinger and Faddeev equations. We improve upon similar …