WIMP dark matter, Higgs exchange and DAMA
By S. Andreas, T. Hambye, M. Tytgat. 2008
154 citations recorded by the source corpus.
In the WIMP scenario, there is a one-to-one relation between the dark matter (DM) relic density and spin-independent direct detection rate if both the annihilation of DM and its elastic scattering on nuclei go dominantly through Higgs exchange. In particular, for DM masses much smaller than the Higgs boson mass, the ratio of the relevant cross sections depends only on the DM mass. Assuming DM mass and direct detection rate within the ranges allowed by the recent DAMA collaboration results—taking account of the channelling effect on energy threshold and the null results of the other direct detection experiments—gives a definite range for the relic density. For scalar DM models, like the Higgs portal models or the inert doublet model, the relic density range turns out to be in agreement with WMAP. This scenario implies that the Higgs boson has a large branching ratio to pairs of DM particles, a prediction which might challenge its search at the LHC.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/11dffb4401c39dd4214bbbaed3d902eb1c0259c6
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
- The inert doublet model of dark matter revisited (2010, background): “Three viable regions can be distinguished: a small mass regime with mH0 ∼ 8 GeV [6,11], a large mass regime with mH0 > 500 GeV [7,22,23] and an intermediate mass regime (mH0 .”
- Scalar multiplet dark matter (2009, result): “When added to the t, u and p-channels, a further cancellation takes places, and the total amplitude to longitudinal modes due to quartic couplings is finally given by MλL ≃ g2 2c2w · m2H0 m2Z · { (m2A0 − m2H0) + (m2H0 − µ22) } m2H0 = 2λA0 (27) to be compared with Eqs.”
- Dark Matter through the Higgs portal (2019, background): “If the DM particle is not charged under the electroweak group, the Higgs sector of the theory allows to accommodate in a minimal way the interaction among pairs of DM and of SM particles [51–91].”
- Dark matter direct detection signals inferred from a cosmological N-body simulation with baryons (2009, background): “been sought in the detector characteristics (quenching factors uncertainties and channelling eects [92, 93]), in particle physics uncertainties (nuclear form factors [94], nucleon eective couplings [95]) or scenarios (elastic scattering [96, 97, 98, 99, 100], inelastic scattering [101, 102, 103, 60,”