Abstract
A search for dark matter particle candidates produced in association with a Z boson in proton-proton collisions at the total center-of-mass energy of 13 TeV is presented. The search uses 36.1 inverse femtobarn of data collected by the ATLAS experiment at the Large Hadron Collider in 2015 and 2016. Events with large missing transverse momentum and consistent with the decay of a Z boson into oppositely charged electron or muon pairs were selected in the analysis. Background estimates and corresponding systematic uncertainties are shown. Exclusion limits on the dark matter candidate and mediator masses are reported.
Highlights
Astrophysical measurements from several independent sources indicate that the majority of the mass of the Universe exists in the form of non-baryonic dark matter (DM) [1]
Experiments at the Large Hadron Collider (LHC) search for weakly interacting massive particles (WIMPs) production associated with a detectable final state, where a WIMP can be identified by a signature involving missing transverse momentum ETmiss [4]
Presented is a search for WIMP candidates produced in association with a Z boson with the ATLAS detector [5] at the LHC
Summary
Astrophysical measurements from several independent sources indicate that the majority of the mass of the Universe exists in the form of non-baryonic dark matter (DM) [1]. Presented is a search for WIMP candidates produced in association with a Z boson with the ATLAS detector [5] at the LHC. Events with a large ETmiss and two oppositely charged electrons or muons consistent with a decay of a Z boson were selected in the analysis.
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