9–11 May 2022
University of Pittsburgh
US/Eastern timezone

Exploring Multilepton Signatures From Dark Matter at the LHC

9 May 2022, 14:30
15m
Lawrence Hall 104

Lawrence Hall 104

Speaker

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

Description

Limitations on the most general mono-X Dark Matter signature at colliders motivate searches beyond this, such as multilepton plus missing energy signatures. In this talk I present our latest limits on the inert 2-Higgs Doublet model (I2HDM) and Minimal Fermion Dark Matter model (MFDM) for 8/13 TeV pp collisions at the LHC, producing 2-3 leptons plus missing energy final states, using CheckMATE. I will show how 3 lepton final states play an important role, with a leading role in the MFDM case via cascading Higgs decays. We also provide limits and efficiencies for re-interpretation of any scalar of fermion DM model by the community.

Authors

Alexander Belyaev (University of Southampton & Rutherford Appleton Laboratory) Stefano Moretti (Science and Technology Facilities Council STFC (GB)) Ulla Blumenschein (University of London (GB)) Arran Charles Freegard (Queen Mary University of London (GB))

Presentation materials

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