Weakly interacting dark matter particle of a minimal technicolor theory
- Department of Physics, University of Jyvaeskylae (Finland)
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 a SU(2) techicolor gauge group and its consistency requires the existence of a fourth family of leptons. By a suitable hypercharge assignment 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{sub N}{approx}100-500 GeV and the expansion rate of the Universe at early times is dominated by an energy component scaling as {rho}{sub {phi}}{approx}a{sup -6} (kination), with {rho}{sub {phi}}/{rho}{sub rad}{approx}10{sup -6} during the nucleosynthesis era.
- OSTI ID:
- 21020415
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 75, Issue 8; Other Information: DOI: 10.1103/PhysRevD.75.085003; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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