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|Paper IPM / Particles And Accelerator / 13720||
We consider a simple one-component dark matter model with two scalars with a mass splitting a, interacting with the SM particles through the Higgs portal. We find a viable parameter space consitent with all the bounds imposed by invisible Higgs decay experiments at the LHC, the direct detection experiments by XENON100 and LUX and the dark matter relic abundance provided by WMAP and Planck. The model can explain as well the gamma-ray excess observed in the new analyses of the Fermi-LAT data from the near center of the Milky Way galaxy. We also discuss on the rôle of the co-annihilation and the mass splitting in our computations.
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