First measurement of the cross section for top-quark pair production in protonproton collisions at s=7TeV Academic Article uri icon

abstract

  • The first measurement of the cross section for top-quark pair production in pp collisions at the Large Hadron Collider at center-of-mass energy s=7 TeV has been performed using a data sample corresponding to an integrated luminosity of 3.10.3 pb-1 recorded by the CMS detector. This result utilizes the final state with two isolated, highly energetic charged leptons, large missing transverse energy, and two or more jets. Backgrounds from Drell-Yan and non-W/Z boson production are estimated from data. Eleven events are observed in the data with 2.11.0 events expected from background. The measured cross section is 19472(stat.)24(syst.)21(lumi.) pb, consistent with next-to-leading order predictions. 2010 CERN.

published proceedings

  • Physics Letters B

author list (cited authors)

  • Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Bergauer, T., Dragicevic, M., ... Weinberg, M.

publication date

  • January 1, 2011 11:11 AM