$[SU(2){]}^3$ Dark Matter

Abstract

An extra $SU(2{)}_D$ gauge factor is added to the well-known left-right extension of the standard model (SM) of quarks and leptons. Under $SU(2{)}_L\times SU(2{)}_R\times SU(2{)}_D$, two fermion bidoublets $(2,1,2)$ and $(1,2,2)$ are assumed. The resulting model has an automatic dark $U(1)$ symmetry, in the same way that the SM has automatic baryon and lepton $U(1)$ symmetries. Phenomenological implications are discussed, as well as the possible origin of this proposal.

Comments: 12 pages, 1 figure, details partly modified