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2020

Parton-shower effects in Higgs production via Vector-Boson Fusion

Jäger, Barbara, Karlberg, Alexander, Plätzer, Simon et al.

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We present a systematic investigation of parton-shower and matching perturbative uncertainties for Higgs-boson production via vector-boson fusion.

To this end we employ different generators at next-to-leading order QCD accuracy matched with shower Monte Carlo programs, PYTHIA8, and HERWIG7, and a next-to-next-to-leading order QCD calculation.
We thoroughly analyse the intrinsic sources of uncertainty within each generator, and then compare predictions among the different tools using the respective recommended setups.
Within typical vector-boson fusion cuts, the resulting uncertainties on observables that are accurate to next-to-leading order are at the 10% level for rates and even smaller for shapes.

Parton-shower effects in Higgs production via Vector-Boson Fusion · Around

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