https://doi.org/10.1140/epjc/s10052-020-08658-5
Regular Article – Theoretical Physics
MiNNLO$$_{\text {PS}}$$: optimizing $$2\rightarrow 1$$ hadronic processes
1
Theoretical Physics Department, CERN, 1211, Geneva 23, Switzerland
2
LAPTh, Université Grenoble Alpes, USMB, CNRS, 74940, Annecy, France
3
Max-Planck-Institut für Physik, Föhringer Ring 6, 80805, Munich, Germany
* e-mail: marius.wiesemann@cern.ch
Received:
28
September
2020
Accepted:
10
November
2020
Published online:
20
November
2020
We consider the MiNNLO $$_\mathrm{PS}$$ method to consistently combine next-to-next-to-leading order (NNLO) QCD calculations with parton-shower simulations. We identify the main sources of differences between MiNNLO $$_\mathrm{PS}$$ and fixed-order NNLO predictions for inclusive observables due to corrections beyond NNLO accuracy and present simple prescriptions to either reduce or remove them. Refined predictions are presented for Higgs, charged- and neutral-current Drell Yan production. The agreement with fixed-order NNLO calculations is considerably improved for inclusive observables and scale uncertainties are reduced. The codes are released within the POWHEG-BOX.
© The Author(s), 2020
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