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Indirect Detection of Kaluza-Klein Dark Matter

Gianfranco Bertone·Geraldine Servant·Guenter Sigl
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Abstract

We investigate prospects for indirect detection of Kaluza--Klein dark matter, focusing on the annihilation radiation of the first Kaluza--Klein excitation of the Hypercharge gauge boson $B^{(1)}$ in the Galactic halo, in particular we estimate neutrino, gamma-ray and synchrotron fluxes. Comparing the predicted fluxes with observational data we are able to constrain the $B^{(1)}$ mass (and therefore the compactification scale). The constraints depend on the specific model adopted for the dark matter density profile. For a NFW profile the analysis of synchrotron radiation puts a lower bound on the $B^{(1)}$ mass of the order of $\simeq 300$ GeV.

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Gianfranco Bertone, Geraldine Servant, Guenter Sigl. 2003-06-24. Indirect Detection of Kaluza-Klein Dark Matter. https://doi.org/10.1103/physrevd.68.044008

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