Measurements of top quark pair relative differential cross-sections with ATLAS in pp collisions at root s=7 TeV

Journal article

Measurements are presented of differential cross-sections for top quark pair production in pp collisions at √s = 7 TeV relative to the total inclusive top quark pair production cross-section. A data sample of 2. 05 fb-1 recorded by the ATLAS detector at the Large Hadron Collider is used. Relative differential cross-sections are derived as a function of the invariant mass, the transverse momentum and the rapidity of the top quark pair system. Events are selected in the lepton (electron or muon) + jets channel. The background-subtracted differential distributions are corrected for detector effects, normalized to the total inclusive top quark pair production cross-section and compared to theoretical predictions. The measurement uncertainties range typically between 10 % and 20 % and are generally dominated by systematic effects. No significant deviations from the Standard Model expectations are observed. © 2013 CERN for the benefit of the ATLAS collaboration.

Authors: Aad, G; Abajyan, T; Abbott, B; Abdallah, J; Khalek, SA

• Publication status: Published
• Journal: EUROPEAN PHYSICAL JOURNAL C
• Volume: 73
• Issue: 1
• Pages: 1-28
• Publication date: 2013-01-01
• DOI: 10.1140/epjc/s10052-012-2261-1
• EISSN: 1434-6052
• ISSN: 1434-6044
• Language: English