par Chatrchyan, Serguei;Clerbaux, Barbara 
;De Lentdecker, Gilles ;Dero, Vincent ;Gay, Arnaud ;Hreus, Tomas ;Leonard, Alexandre ;Marage, Pierre ;Mohammadi, Abdollah ;Reis, Thomas ;Thomas, Laurent ;Vander Marcken, G;Vander Velde, Catherine ;Vanlaer, Pascal ;Wang, Jian ; [et al.]
Référence European Physical Journal C. Particles and Fields, 73, 3, page (1-29)
Publication Publié, 2013
;De Lentdecker, Gilles ;Dero, Vincent ;Gay, Arnaud ;Hreus, Tomas ;Leonard, Alexandre ;Marage, Pierre ;Mohammadi, Abdollah ;Reis, Thomas ;Thomas, Laurent ;Vander Marcken, G;Vander Velde, Catherine ;Vanlaer, Pascal ;Wang, Jian ; [et al.]Référence European Physical Journal C. Particles and Fields, 73, 3, page (1-29)
Publication Publié, 2013
Article révisé par les pairs
| Résumé : | Normalised differential top-quark-pair production cross sections are measured in pp collisions at a centre-of-mass energy of 7 TeVat the LHC with the CMS detector using data recorded in 2011 corresponding to an integrated luminosity of 5. 0 fb-1. The measurements are performed in the lepton+jets decay channels (e+jets and μ+jets) and the dilepton decay channels (e+e-, μ+μ-, and μ±eâ). The ttÌ differential cross section is measured as a function of kinematic properties of the final-state charged leptons and jets associated to b quarks, as well as those of the top quarks and the ttÌ system. The data are compared with several predictions from perturbative QCD calculations up to approximate next-to-next-to-leading-order precision. No significant deviations from the standard model are observed. © 2013 CERN for the benefit of the CMS collaboration. |
