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 as their 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.