par Chatrchyan, Serguei;Clerbaux, Barbara 
;De Lentdecker, Gilles ;Gay, Arnaud ;Hreus, Tomas ;Leonard, Alexandre ;Marage, Pierre ;Thomas, Laurent ;Vander Velde, Catherine ;Vanlaer, Pascal ;Charaf, Othman ;Dero, Vincent ; [et al.]
Référence Physical review. D, Particles, fields, gravitation, and cosmology, 85, 11, 112007
Publication Publié, 2012
;De Lentdecker, Gilles ;Gay, Arnaud ;Hreus, Tomas ;Leonard, Alexandre ;Marage, Pierre ;Thomas, Laurent ;Vander Velde, Catherine ;Vanlaer, Pascal ;Charaf, Othman ;Dero, Vincent ; [et al.]Référence Physical review. D, Particles, fields, gravitation, and cosmology, 85, 11, 112007
Publication Publié, 2012
Article révisé par les pairs
| Résumé : | The top quark pair production cross section is measured in dilepton events with one electron or muon, and one hadronically decaying τ lepton from the decay tt̄→(ν)(τ hν τ)bb̄, (=e,μ). The data sample corresponds to an integrated luminosity of 2.0fb -1 for the electron channel and 2.2fb -1 for the muon channel, collected by the CMS detector at the LHC. This is the first measurement of the tt̄ cross section explicitly including τ leptons in proton-proton collisions at √s=7TeV. The measured value σ tt̄=143±14(stat)±22(syst)±3(lumi)pb is consistent with the standard model predictions. |
