paper

A stable Higgs portal with vector dark matter

arXiv:1506.08805 · doi:10.1007/JHEP09(2015)162

Abstract

We explore an extension of the Standard Model by an additional U (1) gauge group and a complex scalar Higgs portal. As the scalar is charged under this gauge factor this simple model supplies a vector dark matter candidate satisfying the observed relic abundance and limits from direct dark matter searches. An additional Higgs-like state, that may be heavier or lighter than the observed Higgs, is present and satisfies LEP and LHC bounds whilst allowing for absolute stability of the electroweak vacuum in a range of parameter space.

32 pages, 18 figures, v2: references added, minor corrections, published in JHEP

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