Dark Matter Decaying Now

Details Dark Matter Decaying Now Dark Matter Decaying Now

2007-08-02

arxiv.org/abs/0708.0247v1

Astronomy and Astrophysics

Astrophysics

6 pages, 2 figures. Contributed to XXIII International Symposium on Lepton and Photon Interactions at High Energy, Aug 13-18,

Scientific paper

The instability of dark matter may produce visible signals in the spectrum of cosmic gamma-rays. We consider this possibility in frameworks with additional spatial dimensions and supersymmetry. Examples of particles include superweakly-interacting massive particles such as gravitinos in supersymmetry models, the lightest Kaluza-Klein (KK) state in models with universal extra dimensions, and weakly-interacting massive particles such as branons in flexible brane-worlds.

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