http://arxiv.org/abs/1712.09653
One of the simplest extensions of the Standard Model (SM) consists in the inclusion of a massive real scalar field, neutral under the SM gauge groups, to be a dark matter candidate. The addition of a dimension six term into the potential of the scalar dark matter enables the appearance of a false vacuum that describes the cosmic acceleration. We show that the running of the singlet self-interaction and the Higgs portal coupling differs from the standard scalar singlet dark matter model. As usual in dark energy models, the presence of the non-renormalizable self-interaction and the contribution due to radiative corrections to the potential show that the scalar singlet dark matter model can accommodate the accelerated expansion of the Universe at the tree-level.
R. Landim
Fri, 29 Dec 2017
6/65
Comments: 5 pages, 1 figure
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