Luminosity determination in pp collisions at √s = 13 TeV using the ATLAS detector at the LHC

ATLAS Publications, T.M. Carter, R.Y. Gonzalez Andana, A. Hasib, V.A. Parrish, E.A. Pender, T. Qiu, E.P. Takeva, N. Themistokleous, E.M. Villhauer, E. Zaid

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The luminosity determination for the ATLAS detector at the LHC during Run 2 is presented, with pp collisions at a centre-of-mass energy √s = 13 TeV. The
absolute luminosity scale is determined using van der Meer beam separation scans during dedicated running periods in each year, and extrapolated to the physics data-taking regime using complementary measurements from several
luminosity-sensitive detectors. The total uncertainties in the integrated luminosity for each individual year of data-taking range from 0.9% to 1.1%, and are partially correlated between years. After standard data-quality selections,
the full Run 2 pp data sample corresponds to an integrated luminosity of 140.1 ± 1.2 fb−1 , i.e. an uncertainty of 0.83%. A dedicated sample of low-pileup data recorded in 2017–2018 for precision Standard Model physics measurements
is analysed separately, and has an integrated luminosity of 338.1 ± 3.1 pb−1 .
Original languageEnglish
Article number982
Pages (from-to)1-67
Number of pages67
JournalThe European Physical Journal C
Issue number10
Publication statusPublished - 31 Oct 2023


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