Effects of Quark Interactions on Dynamical Chiral Symmetry Breaking by a   Magnetic Field
  It is shown how the strong interaction dynamics of a multi-quark Lagrangian affects the catalysis of dynamical symmetry breaking by a constant magnetic field in (3+1) dimensions. Attention is drawn to the local minima structure of the theory. 
Brigitte Hiller, Alexander A. Osipov, Alex H. Blin and Joao da   Providencia