Constraints on Dark Matter from Colliders

Details Constraints on Dark Matter from Colliders Constraints on Dark Matter from Colliders

2010-08-10

arxiv.org/abs/1008.1783v2

Phys.Rev.D82:116010,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, 16 figures

Scientific paper

10.1103/PhysRevD.82.116010

We show that colliders can impose strong constraints on models of dark matter, in particular when the dark matter is light. We analyze models where the dark matter is a fermion or scalar interacting with quarks and/or gluons through an effective theory containing higher dimensional operators which represent heavier states that have been integrated out of the effective field theory. We determine bounds from existing Tevatron searches for monojets as well as expected LHC reaches for a discovery. We find that colliders can provide information which is complementary or in some cases even superior to experiments searching for direct detection of dark matter through its scattering with nuclei. In particular, both the Tevatron and the LHC can outperform spin dependent searches by an order of magnitude or better over much of parameter space, and if the dark matter couples mainly to gluons, the LHC can place bounds superior to any spin independent search.

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