Evidence of WW and WZ production with lepton plus jets final states in p(p)over-bar collisions at root s=1.96 TeV

Authors
  • V.M. Abazov
  • [Unknown] et al.
  • M. Anastasoaie
  • L.S. Ancu
  • S.J. de Jong
  • F. Filthaut
  • C.F. Galea
  • J.G. Hegeman
  • P. Houben
  • M.M. Meijer
  • P. Svoisky
  • P.J. van den Berg
  • W.M. van Leeuwen
Publication date 2009
Journal Physical Review Letters
Volume | Issue number 102 | 16
Pages (from-to) 161801
Number of pages 7
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Institute for High Energy Physics (IHEF)
Abstract We present first evidence for WW+WZ production in lepton+jets final states at a hadron collider. The data correspond to 1.07 fb(-1) of integrated luminosity collected with the D0 detector at the Fermilab Tevatron in p(p)over-bar collisions at root s=1.96 TeV. The observed cross section for WW+WZ production is 20.2 +/- 4.5 pb, consistent with the standard model and more precise than previous measurements in fully leptonic final states. The probability that background fluctuations alone produce this excess is < 5.4x10(-6), which corresponds to a significance of 4.4 standard deviations.
Document type Article
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