Abstract
We argue that the higher weak isospin SU(3)L manifestly unifies dark matter and normal matter in its isomultiplets for which dark matter carries a conserved dark charge while normal matter does not. The resultant gauge symmetry is given by SU(3)C⊗SU(3)L⊗U(1)X⊗U(1)G, where the first factor is the color group, while the rest defines a scotoelectroweak theory in which X and G determine electric charge Q=T3−1/3T8+X and dark charge D=−2/3T8+G. This setup provides both appropriate scotogenic neutrino masses and dark matter stability as preserved by a residual dark parity PD=(−1)D. Interpretation of the dark charge is further discussed, given that SU(3)L is broken at very high energy scale. Published by the American Physical Society 2024
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