Else Lytken
Professor
Luminosity determination in pp collisions at √s=13 TeV using the ATLAS detector at the LHC
Author
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
Links
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