Kaluza-Klein Dark Matter

Details Kaluza-Klein Dark Matter Kaluza-Klein Dark Matter

2002-07-10

arxiv.org/abs/hep-ph/0207125v2

Phys.Rev.Lett.89:211301,2002

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 3 figures, discussion of spin-independent cross section clarified, references added, published version

Scientific paper

10.1103/PhysRevLett.89.211301

We propose that cold dark matter is made of Kaluza-Klein particles and explore avenues for its detection. The lightest Kaluza-Klein state is an excellent dark matter candidate if standard model particles propagate in extra dimensions and Kaluza-Klein parity is conserved. We consider Kaluza-Klein gauge bosons. In sharp contrast to the case of supersymmetric dark matter, these annihilate to hard positrons, neutrinos and photons with unsuppressed rates. Direct detection signals are also promising. These conclusions are generic to bosonic dark matter candidates.

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