Double Higgs production at NNLO interfaced to parton showers in GENEVA

Simone Alioli, Georgios Billis, Alessandro Broggio, Alessandro Gavardi, Stefan Kallweit, Matthew A. Lim, Giulia Marinelli, Riccardo Nagar, Davide Napoletano

Publications: Contribution to journalArticlePeer Reviewed

Abstract

In this work, we study the production of Higgs boson pairs at next-to-next-to-leading order in QCD matched to parton showers, using the \textsc{Geneva} framework and working in the heavy-top-limit approximation. This includes the resummation of large logarithms of the zero-jettiness $\mathcal{T}_0$ up to the next-to-next-to-next-to-leading-log accuracy. This process features an extremely large momentum transfer, which makes its study particularly relevant for matching schemes such as that employed in \textsc{Geneva}, where the resummation of a variable different from that used in the ordering of the parton shower is used. To further study this effect, we extend the original shower interface designed for \textsc{Pythia8} to include other parton showers, such as \textsc{Dire} and \textsc{Sherpa}.
Original languageEnglish
Article number205
Number of pages32
JournalJournal of High Energy Physics
Volume2023
Issue number6
Early online date20 Dec 2022
DOIs
Publication statusPublished - 29 Jun 2023

Austrian Fields of Science 2012

  • 103036 Theoretical physics

Keywords

  • hep-ph
  • hep-ex
  • Resummation
  • Parton Shower
  • Higher-Order Perturbative Calculations

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