SMuK 2023 – scientific programme

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T: Fachverband Teilchenphysik

T 6: Other Exp., EW

T 6.1: Talk

Monday, March 20, 2023, 16:30–16:45, HSZ/0103

High-pT electron performance in proton-lead collisions in the ATLAS experiment at the LHC — •Patrycja Potepa for the ATLAS collaboration — Johannes Gutenberg-Universität Mainz, Germany

Electrons constitute an essential ingredient of final states from the leptonic decay channels of W and Z bosons. Their reconstruction and identification are especially challenging in heavy-ion collisions due to high detector occupancy. Therefore, the evaluation of electron performance is crucial for precision measurements of properties of quark-gluon plasma produced in heavy-ion collisions at the LHC energies. The presented measurement focuses on electron reconstruction, identification, isolation, and trigger efficiencies in proton-lead collisions collected at 8.16 TeV in 2016. The tag-and-probe method allows to derive electron efficiencies in data and MC simulation independently, and compare the results.