The WIMP of a Minimal Technicolor Theory

Abstract

We consider the possibility that a massive fourth family neutrino, predicted by a recently proposed minimal technicolor theory, could be the source of the dark matter in the universe. The model has two techniflavors in the adjoint representation of an SU(2) techicolor gauge group and its consistency requires the existence of a fourth family of leptons. By a suitable hypercharge assignement the techniquarks together with the new leptons look like a conventional fourth standard model family. We show that the new (Majorana) neutrino N can be the dark matter particle if $m_N\sim 100-500$ GeV and the expansion rate of the Universe at early times is dominated by an energy component scaling as ${\rho }_{\varphi }\sim a^{-6}$ (kination), with ${\rho }_{\varphi }/{\rho }_{\mathrm{rad}}\sim 10^{-6}$ during the nucleosynthesis era.

7 pages, 3 figures

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• Ultra Minimal Technicolor and its Dark Matter TIMP
• Minimal Walking on the Lattice
• Limits on spin-dependent WIMP-nucleon cross-sections from the XENON10 experiment
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• Technicolor Dark Matter
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• Discovering Technicolor
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• iTIMP: isotriplet Technicolor Interacting Massive Particle as Dark Matter
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• Conformal House
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• Muon Flux Limits for Majorana Dark Matter Particles
• Natural fourth generation of leptons
• Gravitational Techniwaves
• Electroweak interactions and dark baryons in the sextet BSM model with a composite Higgs particle
• Alternative Large Nc Schemes and Chiral Dynamics
• Fourth Generation Parity
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• Dark matter from stable charged particles?
• Minimal Flavor Constraints for Technicolor
• A model for dark matter, naturalness and a complete gauge unification
• Dark matter from unification
• Minimal Walking Technicolor
• Status of a minimal composite Higgs theory
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• The Conformal Window and Walking Technicolor