The inert doublet model of dark matter revisited
By L. Lopez Honorez, C. Yaguna. 2010
212 citations recorded by the source corpus.
The inert doublet model, a minimal extension of the Standard Model by a second higgs doublet with no direct couplings to quarks or leptons, is one of the simplest scenarios that can explain the dark matter. In this paper, we study in detail the impact of dark matter annihilation into the three-body final state $ W{W^*}\left( { \to Wf\bar{f}'} \right) $ on the phenomenology of the inert doublet model. We find that this new annihilation mode dominates, in a relevant portion of the parameter space, over those into two-body final states considered in previous analysis. As a result, the computati on of the relic density is modified and the viable regions of the model are displaced. After obtaining the genuine viable regions for different sets of parameters, we compute the direct detection cross section of inert higgs dark matter and find it to be up to two orders of magnitude smaller than what is obtained for two-body final states only. Other implications of these results, including the modification to the decay width of the higgs and to the indirect detection signatures of inert higgs dark matter, are also briefly considered. We demonstrate, therefore, that the annihilation into the three-body final state WW* can not be neglected, as it has a important impact on the entire phenomenology of the inert do ublet model.
Subfields: Artificial Intelligence, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/049a32581b17277c5bba237009c2616a7b7f3088
How researchers see this paper
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In Artificial Intelligence
- A. Goudelis
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- Oscar Stål
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- Fawzi Boudjema
- B. Herrmann
- Neil D. Christensen
- G. B'elanger
In Nuclear and High Energy Physics
- Alexander Pukhov
- G. B'elanger
- Fawzi Boudjema
- Alexander Belyaev
- A. Semenov
- Neil D. Christensen
- Igor P. Ivanov
- Oscar Stål
Citations in the corpus
- Dark matter in the inert doublet model after the discovery of a Higgs-like boson at the LHC (2013, background): “[38], which we attribute to the inclusion of the doubly virtual final states.”
- CalcHEP 3.4 for collider physics within and beyond the Standard Model (2012, methodology): “We will now describe the analogous implementation of the IDM using FeynRules.”
- micrOMEGAs_3: A program for calculating dark matter observables (2013, background): “This effect was shown to be particularly important in models such as the inert doublet model where the DM candidate is a scalar and has a standard SU(2) coupling to W’s [50, 52, 51].”