Techni-dilaton as Dark Matter

Details Techni-dilaton as Dark Matter Techni-dilaton as Dark Matter

2011-01-27

arxiv.org/abs/1101.5326v4

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 figures; version to appear in PLB

Scientific paper

We propose a new dark matter candidate, {\it light decoupled techni-dilaton}, which arises from the almost scale-invariant/conformal (walking) technicolor. We investigate its characteristic nature and discuss several cosmological and astrophysical constraints. It turns out that techni-dilatons are extremely weakly interacting and produced dominantly by the non-thermal mechanism to be the main component of dark matter with mass range between around 0.01 eV and 500 eV for typical walking technicolor scenarios.

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