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Dortmund 2021 – scientific programme

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T: Fachverband Teilchenphysik

T 89: Pixel Detectors IV

T 89.5: Talk

Thursday, March 18, 2021, 17:00–17:15, Tn

Pixel track reconstruction for the Phase-2 CMS tracker — •Elias Paknejad1, Alexander Schmidt1, Xavier Coubez1, and Adriano Di Florio21RWTH Aachen University, Physics Institute III A, Aachen, Germany — 2University of Bari, Department of Physics, Bari, Italy

The new geometry of the Phase-2 CMS detector and the high data rates collected by its pixel tracker require significant improvements in the track reconstruction algorithms in order to cope with the conditions at the High-Luminosity LHC. The algorithms are being adapted to run on Graphics Processing Units (GPUs) in addition to the traditional CPU implementations.

In this presentation, the customized track reconstruction algorithms and results of the first performance studies are presented. The results show that the high pile-up conditions at the HL-LHC represent significant challenges in particular in the online trigger system, such that further improvements are necessary in the future.

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