Аннотация:Light, colored scalars are shown to preserve all presently observed short-distance properties of quantum chromodynamics even when belonging to large multiplets of $\mathrm{SU}{(3)}_{c}$. However, light-scalar pair production by gluon fusion dominates hadronic high-${p}_{T}$ single-particle inclusive production cross sections at $\overline{p}p$ collider energies ($\sqrt{s}=540$ GeV) and two-jet production even at $\sqrt{s}\ensuremath{\approx}50\ensuremath{-}60$ GeV. Embedding in a unified SU(5) theory requires many scalars to be superheavy in order to preserve asymptotic freedom below the unification mass.
