Performance of Track Reconstruction at the CMS High-Level Trigger in 2022 data
K. Peña* on behalf of the CMS Collaboration
Pre-published on:
January 19, 2024
Published on:
March 21, 2024
Abstract
The CMS detector has undergone extensive improvements in preparation for Run 3 of the LHC to operate efficiently at the increased luminosity and pileup. This includes the installation of a refurbished innermost pixel detector layer, as well as the development of HLT software to make use of heterogeneous computing architectures. In Run 3, track reconstruction at the HLT is based on a single iteration seeded by pixel tracks reconstructed by the Patatrack algorithm, which can be offloaded to GPUs. The HLT track reconstruction performance has been measured in pp collision data recorded at a center-of-mass energy of $\sqrt{s}$ = 13.6 TeV in 2022, in particular during periods with detector condition changes expected to have a significant impact on HLT track reconstruction. The HLT tracking efficiency and fake rate with respect to offline track reconstruction, as well as the impact parameters of tracks reconstructed in the HLT, are presented.
DOI: https://doi.org/10.22323/1.449.0592
How to cite
Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating
very compact bibliographies which can be beneficial to authors and
readers, and in "proceeding" format
which is more detailed and complete.