September 30, 2015 Technical note Open Access

Bevilacqua, G.; Hartanto, H. B.; Kraus, M.; Worek, M.

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  "@id": "https://doi.org/10.15161/oar.it/76810", 
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  "creator": [
    {
      "@type": "Person", 
      "affiliation": "INFN-Laboratori Nazionali di Frascati Via E. Fermi 40, Frascati, Italy", 
      "name": "Bevilacqua, G."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Institut f\u00a8ur Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, D-52056 Aachen, Germany", 
      "name": "Hartanto, H. B."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Institut f\u00a8ur Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, D-52056 Aachen, Germany", 
      "name": "Kraus, M."
    }, 
    {
      "@type": "Person", 
      "affiliation": "Institut f\u00a8ur Theoretische Teilchenphysik und Kosmologie, RWTH Aachen University, D-52056 Aachen, Germany", 
      "name": "Worek, M."
    }
  ], 
  "datePublished": "2015-09-30", 
  "description": "<p>We present a complete description of top quark pair production in association with a jet in the dilepton channel. Our calculation is accurate to next-to-leading order in QCD (NLO) and includes all non-resonant diagrams, interferences and off-shell effects of the top quark. Moreover, non-resonant and off-shell effects due to the finite W gauge boson width are taken into account. This calculation constitutes the first fully realistic NLO computation for top quark pair production with a finalstate jet in hadronic collisions. Numerical results for differential distributions as well as total cross sections are presented for the Large Hadron Collider (LHC) at 8 TeV. With our inclusive cuts, NLO predictions reduce the unphysical scale dependence by more than a factor of 3 and lower the total rate by about 13% compared to leading order QCD (LO) predictions. In addition, the size of the top quark off-shell effects is estimated to be below 2%.</p>", 
  "headline": "Top Quark Pair Production in Association with a Jet with NLO QCD Off-Shell Effects at the Large Hadron Collider", 
  "identifier": "https://doi.org/10.15161/oar.it/76810", 
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  "keywords": [
    "Next-to-leading order", 
    "NLO", 
    "Large Hadron Collider", 
    "LHC", 
    "INFN-15-07-LNF"
  ], 
  "license": "https://creativecommons.org/licenses/by/4.0/", 
  "name": "Top Quark Pair Production in Association with a Jet with NLO QCD Off-Shell Effects at the Large Hadron Collider", 
  "url": "https://www.openaccessrepository.it/record/76810"
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