https://doi.org/10.1140/epjc/s10052-020-7987-6
Regular Article - Theoretical Physics
Associated top quark pair production with a heavy boson: differential cross sections at NLO + NNLL accuracy
1
Institute for Theoretical Physics, WWU Münster, 48149, Münster, Germany
2
Institute of Physics, Jagiellonian University, S.Łojasiewicza 11, 30-348, Kraków, Poland
3
Institute of Nuclear Physics PAN, Radzikowskiego 152, 31-342, Kraków, Poland
4
Institute for Theoretical Physics, Georg-August-University Göttingen, Friedrich-Hund-Platz 1, 37077, Göttingen, Germany
* e-mail: vincent.theeuwes@uni-goettingen.de
Received:
23
January
2020
Accepted:
28
April
2020
Published online:
15
May
2020
We present theoretical predictions for selected differential cross sections for the process 
at the LHC, where B can be a Higgs (H), a Z or a W boson. The predictions are calculated in the direct QCD framework up to the next-to-next-leading logarithmi accuracy and matched to the complete NLO results including QCD and electroweak effects. Additionally, results for the total cross sections are provided. The calculations deliver a significant improvement of the theoretical predictions, especially for the 
and the 
production. In these cases, predictions for both the total and differential cross sections are remarkably stable with respect to the central scale choice and carry a substantially reduced scale uncertainty in comparison with the complete NLO predictions.
© The Author(s), 2020
