Spectroscopy of doubly charmed baryons
  We study the mass spectrum of baryons with two and three charmed quarks. For double charm baryons the spin splitting is found to be smaller than standard quark-model potential predictions. This splitting is not influenced either by the particular form of the confining potential or by the regularization taken for the contact term of the spin-spin potential. We consistently predict the spectra for triply charmed baryons. 
J. Vijande, H. Garcilazo, A. Valcarce, F. Fernandez