Light scalar WIMP through the Higgs portal and CoGeNT

@article{Andreas2010LightSW,
  title={Light scalar WIMP through the Higgs portal and CoGeNT},
  author={Sarah Andreas and Chiara Arina and Thomas Hambye and F.-S. Ling and M. Tytgat},
  journal={Physical Review D},
  year={2010},
  volume={82},
  pages={043522}
}
If dark matter (DM) simply consists in a scalar particle interacting dominantly with the Higgs boson, the ratio of its annihilation cross section---which is relevant both for the relic abundance and indirect detection---and its spin-independent scattering cross section on nuclei depends only on the DM mass. It is an intriguing result that, fixing the mass and direct detection rate to fit the annual modulation observed by the DAMA experiment, one obtains a relic density in perfect agreement with… Expand

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