@article{DennerPellen2016, author = {Denner, Ansgar and Pellen, Mathieu}, title = {NLO electroweak corrections to off-shell top-antitop production with leptonic decays at the LHC}, series = {Journal of High Energy Phsyics}, volume = {08}, journal = {Journal of High Energy Phsyics}, number = {155}, doi = {10.1007/JHEP08(2016)155}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-166415}, year = {2016}, abstract = {For the first time the next-to-leading-order electroweak corrections to the full off-shell production of two top quarks that decay leptonically are presented. This calculation includes all off-shell, non-resonant, and interference effects for the 6-particle phase space. While the electroweak corrections are below one per cent for the integrated cross section, they reach up to 15\% in the high-transverse-momentum region of distributions. To support the results of the complete one-loop calculation, we have in addition evaluated the electroweak corrections in two different pole approximations, one requiring two on-shell top quarks and one featuring two on-shell W bosons. While the former deviates by up to 10\% from the full calculation for certain distributions, the latter provides a very good description for most observables. The increased centre-of-mass energy of the LHC makes the inclusion of electroweak corrections extremely relevant as they are particularly large in the Sudakov regime where new physics is expected to be probed.}, language = {en} }