# Measurement of the t t-bar production cross section in the dilepton channel in pp collisions at sqrt(s)=8 TeV

Abstract : The top-antitop quark (t t-bar) production cross section is measured in proton-proton collisions at sqrt(s)=8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 inverse femtobarns. The measurement is performed by analysing events with a pair of electrons or muons, or one electron and one muon, and at least two jets, one of which is identified as originating from hadronisation of a bottom quark. The measured cross section is 239 +/- 2 (stat.) +/- 11 (syst.) +/- 6 (lum.) pb, for an assumed top-quark mass of 172.5 GeV, in agreement with the prediction of the standard model.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00925473
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Submitted on : Wednesday, January 8, 2014 - 10:29:52 AM
Last modification on : Monday, March 28, 2022 - 9:39:17 AM

### Citation

S. Chatrchyan, S. Baffioni, F. Beaudette, P. Busson, C. Charlot, et al.. Measurement of the t t-bar production cross section in the dilepton channel in pp collisions at sqrt(s)=8 TeV. Journal of High Energy Physics, Springer, 2014, 2014(02), pp.024. ⟨10.1007/JHEP02(2014)024⟩. ⟨in2p3-00925473⟩

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