5–10 Sept 2021
Online
Europe/Lisbon timezone

Four-lepton production in gluon fusion at NLO matched to parton showers

8 Sept 2021, 15:00
20m
Online

Online

Talk Standard model physics at the TeV scale Standard model physics at the TeV scale

Speaker

Dr Silvia Ferrario Ravasio (Oxford U.)

Description

We present a calculation of the NLO corrections to the 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 process, and their interference. We consider leptonic decay modes of the vector bosons and retain offshell and non-resonant 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.

Primary author

Presentation materials