Open AccessMeasurement of the tt̄ production cross section in the dilepton channel in proton-proton collisions at = 8 TeV with the CMS experiment
Author(s) -
J. Kieseler
Publication year - 2013
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/452/1/012029
Subject(s) - physics , muon , luminosity , nuclear physics , lepton , proton , particle physics , cross section (physics) , electron , quark , bottom quark , production (economics) , top quark , astrophysics , economics , macroeconomics , quantum mechanics , galaxy
The cross section for top quark pair production is measured in proton-protoncollisions at $\sqrt{s} = 8$ TeV in a data sample corresponding to 2.4 fb1 of integrated luminositycollected by the CMS experiment in 2012. The measurement is performed with events withtwo leptons (electrons or muons), as well as with identied b-quark jets in the nal state. Thecombined measured cross section is tt = 227 3 (stat.) 11 (syst.) 10 (lumi.) pb, inagreement with theoretical predictions