Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 12: Pixel Detectors

T 12.7: Vortrag

Montag, 21. März 2022, 17:45–18:00, T-H25

Data quality monitoring for the ATLAS pixel detector using large radius tracks — Carmen Diez Pardos, Ivor Fleck, •Jan Joachim Hahn, and Iskander Ibragimov — Center for Particle Physics Siegen, Experimentelle Teilchenphysik, Universität Siegen

The ATLAS detector is a general-purpose detector at the Large Hadron Collider (LHC) at CERN. Its Inner Detector (ID), used for reconstruction of tracks of charged particles, consists of four barrel layers and two end-caps of three discs each of the silicon pixel detector, surrounded by the silicon strip detector and the transition radiation tracker. During operation of ATLAS, a small fraction of recorded collision events is reconstructed in real time, providing prompt information on the quality of data being taken. For the upcoming LHC Run 3, the reconstruction of tracks in the ID will include the reconstruction of large radius tracks (LRT). These tracks are of interest for the search of long-lived particles beyond the Standard Model. With respect to the standard tracks, they are reconstructed with relaxed constraints on their starting position. The information from LRTs can be used to create additional histograms for monitoring detector performance during operation of ATLAS. This talk will discuss how this can improve data quality monitoring of the pixel detector.