A new viable region of the inert doublet model
By L. Lopez-Honorez, C. Yaguna. 2010
150 citations recorded by the source corpus.
The inert doublet model, a minimal extension of the Standard Model by a second Higgs doublet, is one of the simplest and most attractive scenarios that can explain the dark matter. In this paper, we demonstrate the existence of a new viable region of the inert doublet model featuring dark matter masses between MW and about 160 GeV. Along this previously overlooked region of the parameter space, the correct relic density is obtained thanks to cancellations between different diagrams contributing to dark matter annihilation into gauge bosons (W+W− and Z0Z0). First, we explain how these cancellations come about and show several examples illustrating the effect of the parameters of the model on the cancellations themselves and on the predicted relic density. Then, we perform a full scan of the new viable region and analyze it in detail by projecting it onto several two-dimensional planes. Finally, the prospects for the direct and the indirect detection of inert Higgs dark matter within this new viable region are studied. We find that present direct detection bounds already rule out a fraction of the new parameter space and that future direct detection experiments, such as Xenon100, will easily probe the remaining part in its entirety.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/c37b83923145dc59a31767e63d686a3c8671b3c7
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
In Nuclear and High Energy Physics
Citations in the corpus
- Dark Matter through the Higgs portal (2019, background): “[114, 450, 451], the correct DM relic density can be obtained in three scenarios:”
- Dark matter in the inert doublet model after the discovery of a Higgs-like boson at the LHC (2013, background): “In particular, the IDM parameter space is known to present three mass regimes for the lightest odd particle (LOP), where the observed relic density can be obtained [3, 10, 37–39]: the so-called low- (1 GeV .”
- An updated analysis of Inert Higgs Doublet Model in light of the recent results from LUX, PLANCK, AMS-02 and LHC (2013, background): “In the lower left plot of figure 5 where 65 < mχ < 100GeV, a negative λχχ is required to guarantee the cancellation between the contributions from different diagrams in the W+W− (or ZZ) channel such that a correct relic abundance can be achieved [52].”