JHEP11(2022)036.pdf (1.22 MB)
W ±Z production at NNLO QCD and NLO EW matched to parton showers with MiNNLOPS
journal contribution
posted on 2023-06-10, 05:29 authored by Jonas LindertJonas Lindert, Daniele Lombardi, Marius Wiesemann, Giulia Zanderighi, Silvia ZanoliWe consider W ±Z production in hadronic collisions and present high-precision predictions in QCD and electroweak (EW) perturbation theory matched to parton showers. To this end, we match next-to-next-to-leading order QCD corrections to parton showers using the MINNLOPS method and consistently combine them with next-to-leading order EW corrections matched to parton showers. This is the first time such accuracy in the event generation is achieved for any collider process, and we study in detail the impact of different choices in the combination of QCD and EW corrections as well as QCD and QED showers. Spin correlations, interferences and off-shell effects are retained by considering the full leptonic processes pp?l+l-l'±?'l with l'???l and l'?=?l without approximations, and the matching to QED radiation is performed preserving the resonance structure of the process. We find that NNLO QCD predictions including QCD and QED shower effects provide a very good approximation in the bulk-region of the phase space, while EW effects become increasingly important in the high-energy tails of kinematic distributions. Our default predictions are in excellent agreement with recent ATLAS data.
History
Publication status
- Published
File Version
- Published version
Journal
Journal of High Energy PhysicsISSN
1126-6708Publisher
SpringerExternal DOI
Issue
a36Volume
2022Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2022-11-15First Open Access (FOA) Date
2022-11-15First Compliant Deposit (FCD) Date
2022-11-14Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC