s10052-021-09470-5.pdf (2.13 MB)
Four-lepton production in gluon fusion at NLO matched to parton showers
journal contribution
posted on 2023-06-10, 05:12 authored by Simone Alioli, Silvia F Ravasio, Jonas LindertJonas Lindert, Raoul RöntschWe present a calculation of the next-to-leading order (NLO) QCD corrections to gluon-induced electroweak gauge boson pair production, gg? ZZ and gg? W+W-, matched to the PYTHIA 8 parton shower in the POWHEG approach. The calculation consistently incorporates the continuum background, the Higgs-mediated gg? H*? VV process, and their interference. We consider leptonic decay modes of the vector bosons and retain offshell and non-resonant contributions. The processes considered are loop-induced at leading order and thus contain two-loop virtual contributions as well as loop-squared real contributions. Parton-shower effects are found to be marginal in inclusive observables and quite sizeable in observables that are exclusive in additional jet radiation. The Monte Carlo generator presented here allows for realistic experimental effects to be incorporated in state-of-the-art precision analyses of diboson production and of the Higgs boson in the offshell regime.
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- Published
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- Published version
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European Physical Journal CISSN
1434-6044Publisher
Springer Science and Business Media LLCExternal DOI
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81Page range
a687 1-16Department affiliated with
- Physics and Astronomy Publications
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- Yes
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- Yes
Legacy Posted Date
2022-10-25First Open Access (FOA) Date
2022-10-25First Compliant Deposit (FCD) Date
2022-10-23Usage metrics
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