Self-interacting Dark Matter and Invisibly Decaying Higgs

Abstract

Self-interacting dark matter has been suggested in order to overcome the difficulties of the Cold Dark Matter model on galactic scales. We argue that a scalar gauge singlet coupled to the Higgs boson, which could lead to an invisibly decaying Higgs, is an interesting candidate for this self-interacting dark matter particle. We also present estimates on the abundance of these particles today as well as consequences to non-Newtonian forces.

4 pages, Revtex

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• Dark Matter Substructure in Galactic Halos
• Observational evidence for self-interacting cold dark matter
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• Collisional versus Collisionless Dark Matter

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