Multilepton Higgs decays through the dark portal

The U(1)D gauge sector containing one dark Higgs boson hD and one dark photon γD may be explored through the decays of the 126 GeV particle discovered at the Large Hadron Collider (LHC), assumed here as the heavier mass eigenstate h1 in the mixing of the standard model h with hD. The various decays of h1 to γDγD, h2h2, h2γDγD and h2h2h2 would yield multilepton final states through the mixing of γD with the photon and the decay h2 → γDγD, where h2 is the lighter dark Higgs. Future searches for signals of multilepton jets at the LHC may reveal the existence of this possible dark sector governed simply by the original Abelian Higgs model.