Speaker
Rachel Christine Rosten
(The Barcelona Institute of Science and Technology (BIST) (ES))
Description
During the LHC Run-2 operations ATLAS gathered a total of $139~fb^{-1}$ of $pp$ collision data at a center-of-mass energy of $\sqrt{s}=13~$TeV. The uncertainty on the measurement of the total integrated luminosity, $1.7\%$, is the dominant uncertainty for a number of analyses. A precise luminosity measurement is therefore of high importance. In this talk, we provide a description of the methodology of the measurement of the total integrated luminosity and its associated uncertainty. Special attention is given to improvements made compared to Run-1 and an overview of the relevant sub-detectors is provided. The use of Van-der-Meer beam-separation scans in calibrating the luminosity is also detailed.
Author
Rachel Christine Rosten
(The Barcelona Institute of Science and Technology (BIST) (ES))
