Paper
Measurement of the top pair production cross-section in 8 TeV proton-proton collisions using kinematic information in the lepton+jets final state with ATLAS
Authors
ATLAS Collaboration
Abstract
A measurement is presented of the inclusive production cross-section in collisions at a center-of-mass energy of TeV using data collected by the ATLAS detector at the CERN Large Hadron Collider. The measurement was performed in the lepton+jets final state using a data set corresponding to an integrated luminosity of 20.3 fb. The cross-section was obtained using a likelihood discriminant fit and -jet identification was used to improve the signal-to-background ratio. The inclusive production cross-section was measured to be pb assuming a top-quark mass of 172.5 GeV, in good agreement with the theoretical prediction of pb. The production cross-section in the fiducial region determined by the detector acceptance is also reported.