September 30, 2015 Technical note Open Access

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

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  <dc:creator>Bevilacqua, G.</dc:creator>
  <dc:creator>Hartanto, H. B.</dc:creator>
  <dc:creator>Kraus, M.</dc:creator>
  <dc:creator>Worek, M.</dc:creator>
  <dc:date>2015-09-30</dc:date>
  <dc:description>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%.</dc:description>
  <dc:identifier>https://www.openaccessrepository.it/record/76810</dc:identifier>
  <dc:identifier>10.15161/oar.it/76810</dc:identifier>
  <dc:language>eng</dc:language>
  <dc:relation>doi:10.15161/oar.it/76809</dc:relation>
  <dc:relation>url:https://www.openaccessrepository.it/communities/infn</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>https://creativecommons.org/licenses/by/4.0/</dc:rights>
  <dc:subject>Next-to-leading order</dc:subject>
  <dc:subject>NLO</dc:subject>
  <dc:subject>Large Hadron Collider</dc:subject>
  <dc:subject>LHC</dc:subject>
  <dc:subject>INFN-15-07-LNF</dc:subject>
  <dc:title>Top Quark Pair Production in Association with a Jet with NLO QCD Off-Shell Effects at the Large Hadron Collider</dc:title>
  <dc:type>info:eu-repo/semantics/technicalDocumentation</dc:type>
  <dc:type>publication-technicalnote</dc:type>
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