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Measurement of jet shapes in top-quark pair events at √ s = 7 TeV using the ATLAS detector

  • The ATLAS collaboration
  • CERN
  • University of Freiburg
  • University of Bonn
  • University of Oklahoma
  • Institute for High Energy Physics
  • Université Paris-Sud
  • University of Geneva
  • Azerbaijan National Academy of Sciences
  • University of Amsterdam
  • Oklahoma State University
  • Michigan State University
  • University of Toronto
  • Tel Aviv University
  • CEA Saclay (Commissariat À l'Energie Atomique et Aux Energies Alternatives)
  • Stockholm University
  • Oskar Klein Centre
  • National Institute for Nuclear Physics
  • Abdus Salam International Centre for Theoretical Physics
  • King's College London
  • AGH University of Krakow
  • United States Department of Energy
  • Hampton University
  • Yale University
  • Ludwig Maximilian University of Munich
  • Rutherford Appleton Laboratory
  • Brandeis University
  • University of Belgrade
  • Laboratório de Instrumentação e Física Experimental de Partículas
  • University of Granada
  • University of Bern
  • Boston University
  • Stony Brook University
  • University of Texas at Dallas
  • University of Rome Tor Vergata
  • Lund University
  • The University of Tokyo
  • RAS - P.N. Lebedev Physics Institute
  • Royal Holloway University of London
  • University of Victoria BC
  • Laboratoire de Physique Subatomique et de Cosmologie de Grenoble
  • Universidad Nacional de La Plata
  • Joint Institute for Nuclear Research
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • National Technical University of Athens
  • University of Udine
  • Humboldt University of Berlin
  • The University of Chicago
  • University of Birmingham

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

A measurement of jet shapes in top-quark pair events using 1.8 fb−1 of √s = 7 TeV pp collision data recorded by the ATLAS detector at the LHC is presented. Samples of top-quark pair events are selected in both the single-lepton and dilepton final states. The differential and integrated shapes of the jets initiated by bottom-quarks from the top-quark decays are compared with those of the jets originated by light-quarks from the hadronic W-boson decays W → qq′ in the single-lepton channel. The light-quark jets are found to have a narrower distribution of the momentum flow inside the jet area than b-quark jets.

Original languageEnglish
Article number2676
JournalEuropean Physical Journal C
Volume73
Issue number12
DOIs
StatePublished - 2013

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