Electromagnetic baryon form factors in the Poincare-covariant Faddeev   approach
  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. 
Reinhard Alkofer, Gernot Eichmann, Helios Sanchis-Alepuz, Richard   Williams
hep-ph nucl-th