Mixed Dark Matter in Universal Extra Dimension Models with TeV Scale $W_R$ and $Z^{\prime }$

Abstract

We show that in a class of universal extra dimension (UED) models that solves both the neutrino mass and proton decay problems using low scale left-right symmetry, the dark matter of the Universe consists of an admixture of KK photon and KK right-handed neutrinos. We present a full calculation of the dark matter density in these models taking into account the co-annihilation effects due to near by states such as the scalar partner of the KK photon as well as fermion states near the right-handed KK neutrino. Using the value of the relic CDM density, we obtain upper limits on $R^{-1}$ of about 400-650 GeV and $M_{Z^{\prime }}\le 1.5$ TeV, both being accessible to LHC. For a region in this parameter space where the KK right-handed neutrino contributes significantly to the total relic density of dark matter, we obtain a lower bound on the dark matter-nucleon scattering cross section of $10^{-44}$ cm${}^2$, which can be probed by the next round of dark matter search experiments.

28 pages, 7 figures

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Cited by in corpus (11)

• Dark Matter and Collider Phenomenology of Universal Extra Dimensions
• Spinless photon dark matter from two universal extra dimensions
• Scalar Bilepton Dark Matter
• Kaluza-Klein Dark Matter: Direct Detection vis-a-vis LHC
• Dirac Neutrino Dark Matter
• Pseudo-Dirac Bino Dark Matter
• Two universal extra dimensions and spinless photons at the ILC
• Investigation of Dark Matter in Minimal 3-3-1 Models
• Relic abundance of dark matter in universal extra dimension models with right-handed neutrinos
• Cosmic ray knee and new physics at the TeV scale
• Radiative corrections to the lightest KK states in the T^2/(Z_2\times Z_2') orbifold