Double Higgs production at NNLO interfaced to parton showers in GENEVA

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

Organisation(s)
Particle Physics
External organisation(s)
Università degli Studi di Milano-Bicocca, Deutsches Elektronen-Synchrotron DESY
Journal
Journal of High Energy Physics
Volume
2023
No. of pages
32
ISSN
1029-8479
DOI
https://doi.org/10.1007/JHEP06(2023)205
Publication date
12-2022
Peer reviewed
Yes
Austrian Fields of Science 2012
103036 Theoretical physics
Keywords
ASJC Scopus subject areas
Nuclear and High Energy Physics
Portal url
https://ucrisportal.univie.ac.at/en/publications/double-higgs-production-at-nnlo-interfaced-to-parton-showers-in-geneva(98e1078c-bcd5-4a47-9357-fcd1a00f35d1).html