Mixed dark matter from technicolor

Preprint number: CP3-Origins-2010-20
Authors: Alexander Belyaev (NExT Institute), Roshan Foadi (Michigan State University), Mads T. Frandsen (Rudolf Peierls Centre for Theoretical Physics), Francesco Sannino (CP3-Origins), and Subir Sarkar (Rudolf Peierls Centre for Theoretical Physics)
External link: arXiv.org

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We study natural composite cold dark matter candidates which are pseudo Nambu-Goldstone bosons (pNGB) in models of dynamical electroweak symmetry breaking. Some of these can have a significant thermal relic abundance, while others must be mainly asymmetric dark matter. By considering the thermal abundance alone we find a lower bound of MW on the pNGB mass when the (composite) Higgs is heavier than 115 GeV. Being pNGBs, the dark matter candidates are in general light enough to be produced at the LHC.