Top Pair Production with a jet with NLO QCD off-shell effects

Abstract

A brief summary of the recent next-to-leading order QCD calculation for e+ ve mu- v_mu bb~ j at the LHC is given. Our computation includes all non-resonant contributions, off-shell effects and interferences for top-quarks and W gauge bosons. Some results for integrated and differential cross sections are shown for the LHC Run1 energy of 8 TeV. A significant reduction of the scale dependence is observed, which indicates that the perturbative expansion is well under control. The results are obtained in the framework of the HELAC-NLO system.

Comments: 4 pages, 3 figures. Presented at the 51st Rencontres de Moriond session devoted to QCD and High Energy Interactions, La Thuile, 19-26 March 2016