  Color-singlet and color-octet vector bosons predicted in theories beyond the
Standard Model have the potential to be discovered as dijet resonances at the
LHC. A color-singlet resonance that has leptophobic couplings needs further
investigation to be distinguished from a color-octet one. In previous work, we
introduced a method for discriminating between the two kinds of resonances when
their couplings are flavor-universal, using measurements of the dijet resonance
mass, total decay width and production cross-section. Here, we describe two
extensions of that work. First, we broaden the method to the case where the
vector resonances have flavor non-universal couplings, by incorporating
measurements of the heavy-flavor decays of the resonance. Second, we apply the
method to separating vector bosons from color-octet scalars and excited quarks.
