July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

QCD backgrounds to dark matter searches at the LHC

Aug 2, 2017, 1:30 PM
Racetrack (Fermi National Accelerator Laboratory)


Fermi National Accelerator Laboratory

Presentation QCD QCD


Prof. Kristian Hahn (Northwestern Univ.)


The sensitivities of Dark Matter (DM) searches at the LHC are rapidly becoming systematics limited. These searches must begin to leverage new methods for controlling systematic uncertainties in order to fully exploit the 300 fb-1 anticipated in Run-2. The most crucial and challenging uncertainties to control are associated with standard model backgrounds, such as $Z(\nu\bar{\nu})+\rm jets$, that give rise to significant missing energy (MET) at large rate. In this talk I will review how such backgrounds are treated in present-day DM searches at the LHC. I will then discuss new techniques that promise to substantially reduce large-MET background uncertainties by means of precise QCD and electroweak calculations

Primary author

Prof. Kristian Hahn (Northwestern Univ.)

Presentation materials