Search for Dark Matter at CMS

TL;DR

This paper reports on CMS experiment searches for dark matter particles using the full LHC Run-I dataset, exploring various final states and interpreting results with effective field theories and simplified models.

Contribution

It provides the first results with simplified models and covers multiple final states for dark matter production at the LHC.

Findings

No significant excess observed in any search channel.

Constraints placed on dark matter interaction cross sections.

First application of simplified models in CMS dark matter searches.

Abstract

The results are presented from searches with the CMS experiment for directly-produced dark matter particles. All these searches use the full LHC Run-I dataset of ~20/fb of proton-proton collisions at 8TeV centre-of-mass energy. Final states with a monojet, monophoton, and monolepton signature are considered, as well as processes with dark-matter particles produced in association with top quarks. Most of these results have been interpreted using an effective field theory approach, while first results are also reported with simplified models.