SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 149: Detector Systems / Muon

T 149.2: Vortrag

Donnerstag, 23. März 2023, 17:45–18:00, WIL/C133

Understanding the alignment of LHCb’s SciFi Tracker — •Nils Breer, Sophie Hollitt, and Johannes Albrecht — TU Dortmund, Germany

As part of the LHCb upgrade, the Scintillating Fibre Tracker (SciFi) replaces the previous Outer and Inner Tracker detectors. A well-aligned detector is crucial in order to measure the physics performance as precisely as possible. Understanding which constraints and which parts of the SciFi have the most impact on the overall alignment will be important for monitoring the reconstruction quality of each fill.

With the commissioning of the SciFi in 2022 we are able to perform misalignment tests on simulated samples and compare the results to the real misaligned detector. As part of the initial alignment of the SciFi, configuration tests on the best estimate for the detector position were performed. In particular, performance tests are used to compare alignments of the full length modules compared to half modules. An overview of the current preparation for further SciFi alignment commissioning in 2023 is presented in this talk.