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Kaluza-Klein Dark Matter

Hsin-Chia Cheng, Jonathan L. Feng, and Konstantin T. Matchev
Phys. Rev. Lett. 89, 211301 – Published 30 October 2002
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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.

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  • Received 12 July 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.211301

©2002 American Physical Society

Authors & Affiliations

Hsin-Chia Cheng1, Jonathan L. Feng2, and Konstantin T. Matchev3,4

  • 1Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637
  • 2Department of Physics and Astronomy, University of California, Irvine, California 92697
  • 3Department of Physics, University of Florida, Gainesville, Florida 32611
  • 4Theory Division, CERN, CH-1211 Geneva, Switzerland

See Also

Detecting Dark Dimensions

JR Minkel
Phys. Rev. Focus 10, 21 (2002)

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Issue

Vol. 89, Iss. 21 — 18 November 2002

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