SIMPLE-MINDED ESTIMATE OF THE MASSES OF BARYONS CONTAINING SINGLE HEAVY QUARKS

The masses of the yet undiscovered baryons containing single c or b qu arks are estimated from the known masses using the following rules: eq ual distances in mass between the isomultiplets forming sextets, equal mass differences between the corresponding spin one-half baryons cont aining c and b quarks, hyperfine splittings inversely proportional to the masses of the heavy quarks.