Dark matter in universal extra dimension models: Kaluza-Klein photon and right-handed neutrino admixture

Ken Hsieh, R. N. Mohapatra, Salah Nasri

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

We show that in a class of universal extra dimension models (UED), which solves both the neutrino mass and proton decay problem, an admixture of Kaluza-Klein (KK) photon and KK right-handed neutrinos can provide the required amount of cold dark matter (CDM). This model has two parameters R-1 and MZ′ (R is the radius of the extra space dimensions and Z′ the extra neutral gauge boson of the model). Using the value of the relic CDM density, combined with the results from the cryogenic searches for CDM, we obtain upper limits on R-1 of about 400-650 GeV and MZ′≤1.5TeV, both being accessible to the LHC. In some regions of the parameter space, the dark matter-nucleon scattering cross section can be as high as 10-44cm2, which can be probed by the next round of dark matter search experiments.

Original languageEnglish
Article number066004
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume74
Issue number6
DOIs
Publication statusPublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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