Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-11-21
Phys.Rev. D68 (2003) 044008
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, 9 figures, version accepted for publication in PRD
Scientific paper
10.1103/PhysRevD.68.044008
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.
Bertone Gianfranco
Servant Geraldine
Sigl Guenter
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