Measurement of the t t-bar production cross section in the dilepton channel in pp collisions at sqrt(s)=8 TeV - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of High Energy Physics Year : 2014

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

S. Chatrchyan
  • Function : Author
P. Busson
R. Granier de Cassagnac
C. Mironov
P. Paganini
J.-L. Agram
C. Collard
E. Conte
P. van Hove
D. Contardo
M. Gouzevitch
M. Lethuillier
V. Sordini
P. Verdier
S. Viret

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.

Dates and versions

in2p3-00925473 , version 1 (08-01-2014)

Identifiers

Cite

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, 2014, 2014(02), pp.024. ⟨10.1007/JHEP02(2014)024⟩. ⟨in2p3-00925473⟩
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