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The bound-state S-Matrix of QUD (SU(5) gauge theory with massless left-handed5 + 15 + 40 + 45* fermions) might underly the success of the Standard Model.The dynamical role of the QUD top quark leads to two Higgs-like scalarresonances, the eta_6 - which reproduces Standard Model top events, and theeta_3 - which could have a mass ~ 125 GeV. The participation of the weakinteraction in the dynamics implies the resonances are not parity eigenstatesand so should have pseudoscalar and scalar electroweak couplings. Also, atree-unitarity condition could hold - in part because of the closeness of theelectroweak physical amplitudes to perturbation theory, and - in part becauseof the intimate relation with regge behavior. This would imply that thecombined physical couplings of the two resonances are comparable to those ofthe Standard Model Higgs boson. Unlike the isolated Standard Model, theunderlying unification of QUD implies there will be no LHC "nightmare scenario"and that, instead, a broad, extensive, experimental program should, eventually,be implemented.

A Higgs-Like Scalar With Mixed-Parity and Standard-Model-Like Couplings Could be Further Evidence for Underlying Massless SU(5) Unification