TY  - JOUR
A1  - Denner, Ansgar
A1  - Lang, Jean-Nicolas
A1  - Pellen, Mathieu
A1  - Uccirati, Sandro
T1  - Higgs production in association with off-shell top-antitop pairs at NLO EW and QCD at the LHC
JF  - Journal of High Energy Physics
N2  - 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.
KW  - high energy physics
KW  - NLO computations
Y1  - 2017
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-171871
IS  - 2
ER  -