Fractionally charged Weyl spinors as the bases for elementary particles

We present a new model of elementary particles with a substructure that the Gell-Mann-Nishijima formula seems to suggest. This set of fractionally-charged Weyl spinors produces all the known elementary fermions out of their conjugate pairs and the elementary bosons as their composites. The model naturally yields the left-handedness of neutrinos, three generations of fermions, SU(3)xSU(2)xU(1) symmetry as its low energy approximation, and a new type of massive neutral particles that could be a dark matter candidate. In this model, the strong and the electromagnetic interactions are integrated at the fundamental level, while the weak interaction works as the next-level mechanism responsible for changing flavors.