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Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

  • The ATLAS Collaboration
  • European Organization for Nuclear Research
  • University of Freiburg
  • University of Oklahoma
  • The Barcelona Institute of Science and Technology
  • Section de Physique
  • University of Geneva
  • University of Oxford
  • Azerbaijan Academy of Sciences
  • Oklahoma State University
  • Department of Physics and Astronomy
  • Michigan State University
  • University of Toronto
  • Tel Aviv University
  • Laboratoire de l'Accélérateur Linéaire
  • Sezione INFN di Milano
  • University of Milano
  • Sezione di Roma
  • Abdus Salam International Centre for Theoretical Physics
  • Agh University of Science and Technology Faculty of Computer Science
  • Brookhaven National Laboratory Physics Department
  • Department of Physics
  • Hampton University
  • Yale University
  • Max-Planck-Institut für Physik
  • Universität München
  • School of Physics and Astronomy
  • Queen Mary University of London
  • Rutherford Appleton Laboratory
  • Department of Physics
  • Brandeis University
  • Lisboa
  • Departamento de Fisica Teorica y del Cosmos and CAFPE
  • University of Granada
  • Johannes Gutenberg University
  • Boston University
  • Departments of Physics & Astronomy and Chemistry
  • Stony Brook University
  • Physics Department
  • University of Texas
  • INFN Roma Tor Vergata
  • University of Rome “Tor Vergata”
  • Department of Physics
  • Bogazici University
  • Department of Physics
  • Lund University
  • International Center for Elementary Particle Physics and Department of Physics
  • University of Tokyo
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • Kobe University
  • State University of New York Albany
  • Department of Physics
  • Royal Holloway University of London
  • Department of Physics and Astronomy
  • University of Victoria
  • Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
  • Joint Institute for Nuclear Research, Dubna
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • Physics Department
  • National Technical University of Athens
  • University Bonn
  • Department of Physics
  • Humboldt-Universität zu Berlin
  • Universite Paris-Saclay

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61 Citations (Scopus)

Résumé

The uncertainty on the calorimeter energy response to jets of particles is derived for the ATLAS experiment at the Large Hadron Collider (LHC). First, the calorimeter response to single isolated charged hadrons is measured and compared to the Monte Carlo simulation using proton-proton collisions at centre-of-mass energies of √s = 900 GeV and 7 TeV collected during 2009 and 2010. Then, using the decay of Ks and Λ particles, the calorimeter response to specific types of particles (positively and negatively charged pions, protons, and anti-protons) is measured and compared to the Monte Carlo predictions. Finally, the jet energy scale uncertainty is determined by propagating the response uncertainty for single charged and neutral particles to jets. The response uncertainty is 2–5 % for central isolated hadrons and 1–3 % for the final calorimeter jet energy scale.

langue originaleAnglais
Numéro d'article2305
journalEuropean Physical Journal C
Volume73
Numéro de publication3
Les DOIs
étatPublié - 2 mars 2013
Modification externeOui

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