SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 113: QCD Theory and Experiment II

T 113.4: Vortrag

Donnerstag, 23. März 2023, 16:35–16:50, HSZ/0405

Measuring the Drell-Yan Cross Section using Forward Electrons with the ATLAS Detector — •Craig Wells for the ATLAS collaboration — Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany

The full LHC Run-2 dataset offers an unparalleled opportunity to measure the complete decomposition of the Drell-Yan cross section in terms of the lepton decay angles in the rest frame of the incident quarks, rapidity of the dilepton system, and the transverse momentum of the vector boson. For this purpose, forward electrons (|eta| > 2.5) in the ATLAS detector present a unique opportunity to probe Z decays in extreme regions of phase space, which are sensitive to fundamental parameters of the Standard Model.

Forward electrons are, however, experimentally challenging objects to work with, due to large amounts of passive material in this region of ATLAS. This talk will present an overview of the analysis and calibration process for forward electrons, so that they are ready to be used for physics purposes.