Invisible Higgs and Dark Matter

Abstract

We investigate the possibility that a massive weakly interacting fermion simultaneously provides for a dominant component of the dark matter relic density and an invisible decay width of the Higgs boson at the LHC. As a concrete model realizing such dynamics we consider the minimal walking technicolor, although our results apply more generally. Taking into account the constraints from the electroweak precision measurements and current direct searches for dark matter particles, we find that such scenario is heavily constrained, and large portions of the parameter space are excluded.

arXiv admin note: text overlap with arXiv:0912.2295

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• Dark Matter and Enhanced Higgs to Di-photon Rate from Vector-like Leptons
• Dark Matter in the Higgs Triplet Model
• Dark matter from unification
• One-loop contributions to the decay $H\to {\nu }_l{\bar{\nu }}_l\gamma$ in standard model revisited
• Constraints on Majorana Dark Matter from a Fourth Lepton Family