Treatment of broken symmetry in the Faddeev approach to the strange   baryon spectra
  By solving the Faddeev equations we calculate the mass of the strange baryons in the framework of a relativistic constituent quark model. The Goldstone-boson-exchange quark-quark interaction is derived from $SU(3)_F$ symmetry, which is explicitly broken as the strange quark is much heavier. This broken symmetry can nicely be accounted for in the Faddeev framework. 
Joseph P. Day and Zoltan Papp
hep-ph nucl-th