Article Dans Une Revue Journal of High Energy Physics Année : 2012

Measurement of the t t-bar production cross section in the dilepton channel in pp collisions at sqrt(s)=7 TeV

S. Chatrchyan
  • Fonction : Auteur
Pierre Busson
C. Mironov
P. Paganini
J.-L. Agram
E. Conte
D. Contardo
S. Viret

Résumé

The t t-bar production cross section (sigma[t t-bar]) is measured in proton-proton collisions at sqrt(s) = 7 TeV in data collected by the CMS experiment, corresponding to an integrated luminosity of 2.3 inverse femtobarns. The measurement is performed in events with two leptons (electrons or muons) in the final state, at least two jets identified as jets originating from b quarks, and the presence of an imbalance in transverse momentum. The measured value of sigma[t t-bar] for a top-quark mass of 172.5 GeV is 161.9 +/- 2.5(stat.) +5.1/-5.0 (syst.) +/- 3.6(lumi.) pb, consistent with the prediction of the standard model.

Dates et versions

in2p3-00723843 , version 1 (14-08-2012)

Identifiants

Citer

S. Chatrchyan, M. Besancon, S. Choudhury, M. Dejardin, D. Denegri, et al.. Measurement of the t t-bar production cross section in the dilepton channel in pp collisions at sqrt(s)=7 TeV. Journal of High Energy Physics, 2012, 11(2012), pp.067. ⟨10.1007/JHEP11(2012)067⟩. ⟨in2p3-00723843⟩
42 Consultations
0 Téléchargements

Altmetric

Partager

  • More