Gamma-ray signatures for Kaluza-Klein dark matter

Details Gamma-ray signatures for Kaluza-Klein dark matter Gamma-ray signatures for Kaluza-Klein dark matter

2006-09-18

arxiv.org/abs/astro-ph/0609510v1

Astronomy and Astrophysics

Astrophysics

Prepared for the proceedings of the "Einstein's century" international conference, Paris, 11-22 July 2005

Scientific paper

10.1063/1.2399663

The extra-dimensional origin of dark matter is a fascinating and nowadays often discussed possibility. Here, we present the gamma-ray signatures that are expected from the self-annihilation of Kaluza-Klein dark matter particles. For comparison, we contrast this with the case of supersymmetry, where the neutralino annihilation spectra take a very different form. In both cases we find pronounced spectral signatures that could in principle be used to distinguish between these two types of dark matter candidates already with today's detector resolutions.

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