research article

Measurement of the top quark pair production cross-section with ATLAS in the single lepton channel

Abstract

A measurement of the production cross-section for top quark pairs (View the MathML source) in pp collisions at View the MathML source is presented using data recorded with the ATLAS detector at the Large Hadron Collider. Events are selected in the single lepton topology by requiring an electron or muon, large missing transverse momentum and at least three jets. With a data sample of 35 pb−1, two different multivariate methods, one of which uses b -quark jet identification while the other does not, use kinematic variables to obtain cross-section measurements of View the MathML source and View the MathML source respectively. The two measurements are in agreement with each other and with QCD calculations. The first measurement has a better a priori sensitivity and constitutes the main result of this Letter

    Similar works

    Available Versions