15-19 February 2021
CERN
Europe/Paris timezone

Exploring Multilepton Signatures From Dark Matter at the LHC

19 Feb 2021, 13:36
15m
virtual (online only) (CERN)

virtual (online only)

CERN

Speaker

Arran Charles Freegard (Queen Mary University of London (GB))

Description

While overwhelming cosmological evidences point to the existence of Dark Matter (DM), only its gravitational interaction has been experimentally confirmed. Limitations on the most general mono-X DM signature at colliders motivate searches beyond this. This could manifest in the form of a weak multiplet/doublet DM via weak interactions giving multilepton plus missing energy final states that can be probed at the LHC. Here we present our latest limits on inert 2-Higgs Doublet model (I2HDM) and Minimal Fermion Dark Matter model (MFDM) for 8/13 TeV pp collisions, producing 2-3 leptons plus missing energy final states, using CheckMATE.

Primary authors

Arran Charles Freegard (Queen Mary University of London (GB)) Prof. Alexander Belyaev (University of Southampton & Rutherford Appleton Laboratory) Ulla Blumenschein (University of London (GB)) Stefano Moretti

Presentation Materials