Electromagnetic form factors of the baryon octet in the perturbative   chiral quark model
  We apply the perturbative chiral quark model at one loop to analyze the electromagnetic form factors of the baryon octet. The analytic expressions for baryon form factors, which are given in terms of fundamental parameters of low-energy pion-nucleon physics (weak pion decay constant, axial nucleon coupling, strong pion-nucleon form factor), and the numerical results for baryon magnetic moments, charge and magnetic radii are presented. Our results are in good agreement with experimental data. 
S. Cheedket (Tuebingen and Suranaree U.), V.E. Lyubovitskij (Tuebingen   U.), Th. Gutsche (Tuebingen U.), Amand Faessler (Tu...