Measurement of the t(t)over-bar production cross section in the dilepton channel in pp collisions at root s=8 TeV
JOURNAL OF HIGH ENERGY PHYSICS, vol.2014, no.2, 2014 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 2014 Issue: 2
- Publication Date: 2014
- Doi Number: 10.1007/jhep02(2014)024
- Journal Name: JOURNAL OF HIGH ENERGY PHYSICS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Keywords: Hadron-Hadron Scattering, Top physics
- Open Archive Collection: AVESIS Open Access Collection
- Dokuz Eylül University Affiliated: Yes
Abstract
The top-antitop quark (t (t) over bar) production cross section is measured in proton-proton collisions at root s = 8 TeV with the CMS experiment at the LHC, using a data sample corresponding to an integrated luminosity of 5.3 fb(-1). 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.