Refine
Has Fulltext
- yes (9)
Is part of the Bibliography
- yes (9)
Document Type
- Journal article (9)
Language
- English (9)
Keywords
- NLO Computations (4)
- NLO computations (4)
- Large Hadron Collider (3)
- Higgs boson (2)
- EW (1)
- LHC (1)
- NLO QCD (1)
- RECOLA (1)
- SHERPA (1)
- hadronic colliders (1)
Institute
EU-Project number / Contract (GA) number
- 315877 (1)
- 316704 (1)
- PITN-GA-2012-316704 (1)
Higgs production in association with off-shell top-antitop pairs at NLO EW and QCD at the LHC
(2017)
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.