A model based on $SU(3{)}_C\times SU(2{)}_L\times U(1{)}_Y\times SU(2{)}_N$ has recently been proposed, where the $SU(2{)}_N$ vector gauge bosons are neutral, so that a vector dark-matter candidate is possible and constrained by data to be less than about 1 TeV. We explore further implications of this model, including a detailed study of its Higgs sector. We improve on its dark-matter phenomenology, as well as its discovery reach at the Large Hadron Collider.

• Received 11 July 2011

DOI:https://doi.org/10.1103/PhysRevD.85.055008