Is fractional electric charge problematic for QCD

A model of broken QCD is described here; SU3c is broken to SO3g (“g” for “glow”) such that color triplets become glow triplets. With this breaking pattern, there should exist low‐mass, fractionally‐charged diquark states that are not strongly bound to nuclei, but are rarely produced at present accelerator facilities. The breaking of QCD can be done with a 27c, in which case, this strong interaction theory is easily embedded in unified models such as those based on SU5, SO10, or E6. This work was done in collaboration with Terry Goldman of Los Alamos and Gordon Shaw of U.C., Irvine.