Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 57: Flavour Physics 5

T 57.7: Vortrag

Mittwoch, 23. März 2022, 17:45–18:00, T-H16

Measurements of strangeness production with the upgraded LHCb detector — •Lukas Calefice^{1, 2}, Vitalii Lisovskyi¹, Johannes Albrecht¹, and Vladimir Gligorov² — ¹Experimentelle Physik 5, TU Dortmund — ²CNRS/LPNHE, Sorbonne Université, Paris

The LHCb experiment is currently undergoing a major upgrade of its detector to enable running at a five times higher instantaneous luminosity with respect to the previous data taking. Among other things the upgrade comprises the removal of the hardware trigger stage, a complete re-design of the software trigger, replacing the front-end readout electronics of all sub-detectors and an entire new set of tracking detectors. Validating the performance and data quality of the newly configured detector is a crucial task for the beginning of the next data taking period.

Due to their very large production cross-sections at the LHC strange hadrons such as Λ⁰ and K_S⁰ can be studied with only few days of data taking. Therefore, these are used to investigate the alignment of tracking detectors, to check the PID performace and validate the simulation of the upgraded detector. Finally, a measurement of the strangeness production cross-sections at 13 and 13.5 TeV will be performed with the early data after restarting the LHC.

This talk focuses on the preparations of the detector validation with data from the previous data takings.