Double Higgs production at NNLO interfaced to parton showers in GENEVA

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

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(en)
Teilchenphysik
Externe Organisation(en)
Università degli Studi di Milano-Bicocca, Deutsches Elektronen-Synchrotron DESY
Journal
Journal of High Energy Physics
Band
2023
Anzahl der Seiten
32
ISSN
1029-8479
DOI
https://doi.org/10.1007/JHEP06(2023)205
Publikationsdatum
12-2022
Peer-reviewed
Ja
ÖFOS 2012
103036 Theoretische Physik
Schlagwörter
ASJC Scopus Sachgebiete
Nuclear and High Energy Physics
Link zum Portal
https://ucrisportal.univie.ac.at/de/publications/double-higgs-production-at-nnlo-interfaced-to-parton-showers-in-geneva(98e1078c-bcd5-4a47-9357-fcd1a00f35d1).html