An alternative fit to Belle mass spectra for DD, D*D* and Lambda_C   Lambda_c
  Peaks observed by Belle in DD at 3.878 GeV and in D*D* at 4.156 GeV may be fitted by phase space multiplied by a form factor with an RMS radius of interaction 0.63 fm. The peak observed in Lambda_C Lambda_C at 4.63 GeV may be explained by Y(4660), multiplied by a corresponding form factor with RMS radius 0.94 fm. 
D.V. Bugg (Queen Mary, University of London, UK)