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T: Fachverband Teilchenphysik

T 10: Suche nach Dunkler Materie 1 (LHC)

T 10.1: Vortrag

Montag, 27. März 2017, 16:45–17:00, VSH 116

Search for Dark Matter in Vector Boson Fusion- and Monojet-Topologies with the ATLAS Experiment at 13 TeV — •Manuel Patrice Geisler — Kirchhoff-Institut für Physik, Heidelberg

The nature of Dark Matter (DM) is one of the big open questions in modern physics. Although the cosmological evidence is strong, the nature of DM has yet to be unraveled. This talk covers a new search for DM with the ATLAS detector at CERN using the 2015 dataset of proton-proton collisions. As DM particles would escape the detector without leaving any trace, their production in association with quarks and gluons can result in significant amounts of missing transverse momentum (MET). Two high-MET final states are investigated, which differ in jet kinematics and minimum number of required jets (1-jet and 2-jet) and which are designed to be a generic as possible. Additionally, the 2-jet final state is particularly sensitive to vector boson fusion. In this talk, general aspects of the search as well as details on background estimations will be covered.