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We study the multi-wavelength signal induced by pairs annihilations at theGalactic center (GC) of a recently proposed dark matter (DM) candidate. Theweakly interacting massive particle (WIMP) candidate, named A_, is the firstKaluza-Klein mode of a five dimensional Abelian gauge boson. Electroweakprecision tests and the DM cosmological bound constrain its mass and pairannihilation rate in small ranges, leading to precise predictions of indirectsignals from what concerns the particle physics side. The relatedmulti-wavelength emission is expected to be faint, unless a significantenhancement of the DM density is present at the GC. We find that in this case,and depending on few additional assumptions, the next generation of gamma-rayand wide-field radio observations can test the model, possibly even with thedetection of the induced monochromatic gamma-ray emission.

Photons from Dark Matter in a (non-Universal) Extra Dimension model