Kaluza-Klein Dark Matter
High Energy Physics - Phenomenology
2009-10-09 v2 Astrophysics
High Energy Physics - Experiment
Abstract
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.
Keywords
Cite
@article{arxiv.hep-ph/0207125,
title = {Kaluza-Klein Dark Matter},
author = {Hsin-Chia Cheng and Jonathan L. Feng and Konstantin T. Matchev},
journal= {arXiv preprint arXiv:hep-ph/0207125},
year = {2009}
}
Comments
4 pages, 3 figures, discussion of spin-independent cross section clarified, references added, published version