2009/07/15 by Jiri Kvita, Kvita, Jiri
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #hep-ex
paper · pdf · doi:10.48550/arxiv.0907.2684
Proceedings of 17th International Workshop on Deep Inelastic Scattering (DIS 2009), Madrid, 26-30 Apr 2009, 5 pages, 6 figures
arxiv created 2009/07/15 · arxiv updated 2009/12/01
We report on measurements of the ttbar production cross section at a center-of-mass energy of 1.96 TeV at the D0 experiment during Run II of the Fermilab Tevatron collider. We use candidate events in lepton+jets and dilepton final states. In the most sensitive channel (lepton+jets channel), a neural network algorithm that uses lifetime information to identify b-quark jets is used to distinguish signal from background processes. We also present measurements of single top quark production at D0 using several multivariate techniques to separate signal from background.