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Torsten ÅKESSON

Torsten Åkesson

Professor

Torsten ÅKESSON

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

Author

  • G. Aad
  • T.P.A. Åkesson
  • C. Doglioni
  • P.A. Ekman
  • V. Hedberg
  • H. Herde
  • B. Konya
  • E. Lytken
  • R. Poettgen
  • N.D. Simpson
  • E. Skorda
  • O. Smirnova
  • L. Zwalinski

Summary, in English

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 . © 2023, The Author(s).

Department/s

  • Particle and nuclear physics
  • eSSENCE: The e-Science Collaboration

Publishing year

2023

Language

English

Publication/Series

European Physical Journal C

Volume

83

Issue

10

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Tellurium compounds
  • A-center
  • Absolute luminosity
  • ATLAS detectors
  • Center-of-mass energies
  • Centre-of-mass energies
  • Data quality
  • Integrated luminosity
  • Physics data
  • Sensitive detector
  • Total uncertainties
  • Luminance

Status

Published

ISBN/ISSN/Other

  • ISSN: 1434-6044