  Color-sextet scalars could have an array of possible couplings to the
Standard Model beyond their well known renormalizable couplings to quark pairs.
The next-largest couplings these scalars might enjoy have mass dimension six,
and some include electroweak fields and can therefore produce highly
distinctive signals at hadron colliders. Here we study the single production of
color-sextet scalars in association with a hard lepton, which results from a
dimension-six coupling to leptons in addition to quarks and gluons. We identify
parameter space in which these scalars decay promptly and propose a search for
such particles in final states with two jets and an opposite-charge lepton
pair, one member of which has high momentum. We then impose our selection
criteria on the proposed signal and its leading backgrounds to project the
discovery potential and exclusion limits during the next runs of the LHC. We
compare our search with existing searches for leptoquarks, and we find we
achieve much higher sensitivity with our tailored approach due to the unique
kinematics of leptonic sextet events.
