The precise reconstruction of charged particle tracks is crucial for the overall performance of the CMS experiment. In this contribution, performance measurements of the track reconstruction both in simulation and data are presented, from the collisions that occurred during the last periods of the Run 3 of data taking at the LHC. A particular focus is given to the role and performance of the Silicon Pixel detector. Together with comparisons between data and simulation on important track quantities, the efficiencies measured at high level trigger and with the tag-and-probe techniques are discussed.
Ruben Forti (Fri,) studied this question.