PoS - Proceedings of Science
Volume 449 - The European Physical Society Conference on High Energy Physics (EPS-HEP2023) - T06 QCD and Hadronic Physics
Luminosity determination in pp collisions at $\sqrt(s)=13.6$TeV with the ATLAS detector
C.A. Huegli*  on behalf of the ALICE collaboration
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Pre-published on: February 23, 2024
Published on: March 21, 2024
A precise measurement of the luminosity is a crucial input for many ATLAS physics analyses, and represents the leading uncertainty for W, Z and top cross-section measurements. The first ATLAS luminosity determination in Run-3 of the LHC, for the dataset recorded in 2022, at a center-of-mass energy of 13.6 TeV follows the procedure developed in Run-2 of the LHC. It is based on van der Meer scans during dedicated running periods each year to set the absolute scale, and an extrapolation to physics running conditions using complementary measurements from the ATLAS tracker and calorimeter subsystems. The presentation discusses the procedure of the ATLAS luminosity measurement, as well as the results obtained for the 2022 proton-proton dataset.
DOI: https://doi.org/10.22323/1.449.0235
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