New techniques for jet calibration with the ATLAS detector

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • The ATLAS collaboration - , University of California at Berkeley, Universidad Javeriana, University of Bucharest, iThemba Labs, University of Pretoria, University of South Africa, University of Zululand, Cadi Ayyad University, NYU Abu Dhabi, University of Georgia (Tbilisi), CERN (Author)
  • Pa Malecki - , Polish Academy of Sciences (Author)
  • Chair of Experimental Particle Physics
  • Chair of Particle Physics
  • Institute of Nuclear and Particle Physics
  • Aix-Marseille Université
  • University of Oklahoma
  • University of Göttingen
  • Dortmund University of Technology
  • Brookhaven National Laboratory
  • Mohammed V University in Rabat
  • Tel Aviv University
  • Technion-Israel Institute of Technology
  • New York University
  • Pontificia Universidad Católica de Chile
  • National Institute for Nuclear Physics
  • Abdus Salam International Centre for Theoretical Physics
  • King's College London (KCL)
  • Laboratoire d'Annecy-le-Vieux de Physique des Particules LAPP
  • AGH University of Science and Technology
  • University of Toronto
  • Brandeis University
  • University of Manchester
  • Northern Illinois University
  • Istanbul University
  • Rutherford Appleton Laboratory
  • University of California at Santa Cruz
  • Institute for High Energy Physics
  • University of Pavia
  • Johannes Gutenberg University Mainz
  • Alexandru Ioan Cuza University of Iaşi
  • Azerbaijan National Academy of Sciences
  • McGill University
  • Royal Holloway University of London
  • University of Science and Technology of China (USTC)
  • University of Rome Tor Vergata
  • TUD Dresden University of Technology

Abstract

A determination of the jet energy scale is presented using proton–proton collision data with a centre-of-mass energy of s=13 TeV, corresponding to an integrated luminosity of 140 fb-1 collected using the ATLAS detector at the LHC. Jets are reconstructed using the ATLAS particle-flow method that combines charged-particle tracks and topo-clusters formed from energy deposits in the calorimeter cells. The anti-kt jet algorithm with radius parameter R=0.4 is used to define the jet. Novel jet energy scale calibration strategies developed for the LHC Run 2 are reported that lay the foundation for the jet calibration in Run 3. Jets are calibrated with a series of simulation-based corrections, including state-of-the-art techniques in jet calibration such as machine learning methods and novel in situ calibrations to achieve better performance than the baseline calibration derived using up to 81 fb-1 of Run 2 data. The performance of these new techniques is then examined in the in situ measurements by exploiting the transverse momentum balance between a jet and a reference object. The b-quark jet energy scale using particle flow jets is measured for the first time with around 1% precision using γ+jet events.

Details

Original languageEnglish
Article number761
Pages (from-to)1-41
Number of pages41
JournalEuropean Physical Journal C
Volume83
Issue number8
Publication statusPublished - 29 Aug 2023
Peer-reviewedYes

External IDs

ORCID /0000-0001-6480-6079/work/172566393
ORCID /0000-0003-0546-1634/work/173516637