@article{DennerLangPellenetal.2017, author = {Denner, Ansgar and Lang, Jean-Nicolas and Pellen, Mathieu and Uccirati, Sandro}, title = {Higgs production in association with off-shell top-antitop pairs at NLO EW and QCD at the LHC}, series = {Journal of High Energy Physics}, journal = {Journal of High Energy Physics}, number = {2}, doi = {10.1007/JHEP02(2017)053}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-171871}, year = {2017}, abstract = {We present NLO electroweak corrections to Higgs production in association with off-shell top-antitop quark pairs. The full process pp → e +νeµ -ν¯µbb¯H is considered, and hence all interference, off-shell, and non-resonant contributions are taken into account. The electroweak corrections turn out to be below one per cent for the integrated cross section but can exceed 10\% in certain phase-space regions. In addition to its phenomenological relevance, the computation constitutes a major technical achievement as the full NLO virtual corrections involving up to 9-point functions have been computed exactly. The results of the full computation are supported by two calculations in the double-pole approximation. These also allow to infer the effect of off-shell contributions and emphasise their importance especially for the run II of the LHC. Finally, we present combined predictions featuring both NLO electroweak and QCD corrections in a common set-up that will help the experimental collaborations in their quest of precisely measuring the aforementioned process.}, language = {en} }