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Higgsstrahlung at NNLL$'+$NNLO Matched to Parton Showers in GENEVA
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abstract
We present results for the Higgsstrahlung process within the GENEVA Monte Carlo framework. We combine the fully differential NNLO calculation with the higher-order resummation in the 0-jettiness resolution variable (beam-thrust). The resulting parton-level events are further showered and hadronised by Pythia8. The beam-thrust resummation is carried out to NNLL$'$ accuracy, which consistently incorporates all singular virtual and real NNLO corrections. It thus provides a natural perturbative connection between the NNLO calculation and the parton shower regime, including a systematic assessment of perturbative uncertainties. In this way, observables which are inclusive over the additional radiation are correct to NNLO, while the description of 0-jet-like resummation variables is improved beyond the parton shower approximation. We provide predictions for the 13 TeV LHC.
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Cited by 1 Pith paper
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Resumming transverse observables for NNLO+PS matching in GENEVA
A GENEVA NNLO+PS generator for b bbar H and c cbar H is built with qT resummation at N3LL and the first NLL' resummation of a transverse-measure one-jettiness.
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