Report number
| arXiv:1908.06987 ; CERN-TH-2019-117 ; LAPTH-042/19 ; MPP-2019-177 |
Title
| MiNNLOPS: A new method to match NNLO QCD to parton showers |
Author(s)
| Monni, Pier Francesco (CERN) ; Nason, Paolo (INFN, Milan Bicocca ; Milan Bicocca U.) ; Re, Emanuele (CERN ; Annecy, LAPTH) ; Wiesemann, Marius (CERN ; Munich, Max Planck Inst.) ; Zanderighi, Giulia (Munich, Max Planck Inst.) |
Publication
| 2020-05-27 |
Imprint
| 2019-08-19 |
Number of pages
| 45 |
Note
| Fixed sign typo in Eq. (4.24) |
In:
| JHEP 2005 (2020) pp.143 |
DOI
| 10.1007/JHEP05(2020)143 10.1007/JHEP05(2020)143 (publication)
|
Subject category
| hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology |
Abstract
| We present a novel method to combine QCD calculations at next-to-next-to-leading order (NNLO) with parton shower (PS) simulations, that can be applied to the production of heavy systems in hadronic collisions, such as colour singlets or a tˉt pair. The NNLO corrections are included by connecting the MiNLO′ method with transverse-momentum resummation, and they are calculated at generation time without any additional reweighting, making the algorithm considerably efficient. Moreover, the combination of different jet multiplicities does not require any unphysical merging scale, and the matching preserves the structure of the leading logarithmic corrections of the Monte Carlo simulation for parton showers ordered in transverse momentum. We present proof-of-concept applications to hadronic Higgs production and the Drell-Yan process at the LHC. |
Copyright/License
| preprint: (License: arXiv nonexclusive-distrib 1.0) |