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Scientific article
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English

Measurement of and production in proton-proton collisions at √s=7 TeV with the ATLAS detector

ContributorsATLAS Collaboration
Published inThe journal of high energy physics, vol. 09, no. 072, 41
Publication date2011
Abstract

We present studies of W and Z bosons with associated high energy photons produced in pp collisions at √s=7 TeV. The analysis uses 35 pb−1 of data collected by the ATLAS experiment in 2010. The event selection requires W and Z bosons decaying into high p T leptons (electrons or muons) and a photon with E T > 15 GeV separated from the lepton(s) by a distance ∆R(l, γ) > 0.7 in η-ϕ space. A total of 95 (97) pp → e ± νγ + X(pp → μ ± νγ + X) and 25 (23) pp → e + e − γ + X(pp → μ + μ − γ + X) event candidates are selected. The kinematic distributions of the leptons and photons and the production cross sections are measured. The data are found to agree with Standard Model predictions that include next-to-leading-order O(αα s ) contributions.

Keywords
  • Hadron-Hadron Scattering
Citation (ISO format)
ATLAS Collaboration. Measurement of <em>Wγ</em> and <em>Zγ</em> production in proton-proton collisions at √s=7 TeV with the ATLAS detector. In: The journal of high energy physics, 2011, vol. 09, n° 072, p. 41. doi: 10.1007/JHEP09(2011)072
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Article (Published version)
accessLevelPublic
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ISSN of the journal1029-8479
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