Dark Matter @ LHC 2018 (#DMLHC2018)

Dark Matter in Association with a Single Top

5 Apr 2018, 16:30

15m

Room 1.403+1.404 (first floor) (U. Heidelberg / KIP)

Default track Open Session C)

Speaker

Jennifer Thompson (ITP Heidelberg)

Description

Dark matter scenarios with spin-0 mediators in the s-channel have be tested in well-established processes with missing energy, such as top-pair- and mono-jet-associated production. We suggest electroweak single top production in association with a dark matter pair as an alternative channel. Based on a realistic analysis for the LHC at 13 TeV, we demonstrate how to discriminate between the signal and Standard-Model background using event kinematics. With 300 fb${}^{-1}$ (3 ab${}^{-1}$) of data, on-shell scalar mediators with a coupling strength gSt = 1 to top quarks can be probed up to masses of 180 (360) GeV. Single-top-associated dark matter production should thus be included as an independent search channel in the LHC dark matter program.

Presentation materials

thompson_tDM.pdf