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Measurement of the Z/γ* boson transverse momentum distribution in pp collisions at √s = 7 TeV with the ATLAS detector

  • The ATLAS collaboration
  • Aix-Marseille Université
  • University of Oklahoma
  • Academia Sinica - Institute of Physics
  • IN2P3/CNRS
  • Azerbaijan National Academy of Sciences
  • University of Amsterdam
  • Oklahoma State University
  • Michigan State University
  • University of Toronto
  • Tel Aviv University
  • Technion-Israel Institute of Technology
  • CERN
  • 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
  • Brookhaven National Laboratory
  • Yale University
  • Ludwig Maximilian University of Munich
  • Rutherford Appleton Laboratory
  • University of Belgrade
  • Laboratório de Instrumentação e Física Experimental de Partículas
  • University of Granada
  • University of Bern
  • Boston University
  • Joint Institute for Nuclear Research
  • University of Rome Tor Vergata
  • Lund University
  • The University of Tokyo
  • P.N. Lebedev Physical Institute of the Russian Academy of Sciences
  • University of Bologna
  • University of Victoria BC
  • Université Grenoble Alpes
  • Instituto de Física La Plata
  • Horia Hulubei National Institute of Physics and Nuclear Engineering
  • University of Geneva
  • National Technical University of Athens
  • University of Udine
  • The University of Chicago

Research output: Contribution to journalArticlepeer-review

266 Scopus citations

Abstract

This paper describes a measurement of the Z/γ* boson transverse momentum spectrum using ATLAS proton-proton collision data at a centre-of-mass energy of (Formula presented) TeV at the LHC. The measurement is performed in the Z/γ* → e+e and Z/γ* → μ+μ channels, using data corresponding to an integrated luminosity of 4.7 fb−1. Normalized differential cross sections as a function of the Z/γ* boson transverse momentum are measured for transverse momenta up to 800 GeV. The measurement is performed inclusively for Z/γ* rapidities up to 2.4, as well as in three rapidity bins. The channel results are combined, compared to perturbative and resummed QCD calculations and used to constrain the parton shower parameters of Monte Carlo generators.

Original languageEnglish
Article number145
JournalJournal of High Energy Physics
Volume2014
Issue number9
DOIs
StatePublished - Sep 2014

Keywords

  • Hadron-Hadron Scattering

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