A stable Higgs portal with vector dark matter

Authors :: Moritz McGarrie
Bohdan Grzadkowski
Mateusz Duch
Source :: Journal of High Energy Physics
Publication Year :: 2015
Publisher :: Springer/SISSA, 2015.
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.<br />Comment: 32 pages, 18 figures, v2: references added, minor corrections, published in JHEP