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