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We present NNLO QCD predictions for a wide range of event-shape observables in hadronic Higgs decays, taking into account the two dominant decay modes $H\to gg$ and $H\to b\bar{b}$. Specifically, we consider the six classical event shapes…

High Energy Physics - Phenomenology · Physics 2025-08-22 Elliot Fox , Aude Gehrmann-De Ridder , Thomas Gehrmann , Nigel Glover , Matteo Marcoli , Christian T. Preuss

We present predictions for soft-drop event shapes of hadronic final states in electron-positron annihilation at next-to-next-to-leading order accuracy in perturbation theory obtained using the CoLoRFulNNLO subtraction method. We study the…

High Energy Physics - Phenomenology · Physics 2018-10-17 Adam Kardos , Gábor Somogyi , Zoltán Trócsányi

We present next-to-leading order perturbative QCD predictions for four-jet-like event-shape observables in hadronic Higgs decays. To this end, we take into account two Higgs-decay categories: involving either the Yukawa-induced decay to a…

High Energy Physics - Phenomenology · Physics 2024-03-22 Aude Gehrmann-De Ridder , Christian T Preuss , Ciaran Williams

Soft-drop grooming of hadron-collision final states has the potential to significantly reduce the impact of non-perturbative corrections, and in particular the underlying-event contribution. This eventually will enable a more direct…

High Energy Physics - Phenomenology · Physics 2021-08-04 Jeremy Baron , Daniel Reichelt , Steffen Schumann , Niklas Schwanemann , Vincent Theeuwes

The prospect of future electron-positron colliders operating as "Higgs factories" in a clean experimental environment presents one of the most promising avenues for Higgs precision measurements. In order to capitalise on this, we need to…

High Energy Physics - Phenomenology · Physics 2026-03-10 Elliot Fox

We consider the resummation of large logarithmic corrections arising in the two-particle limit at next-to-next-to-leading logarithmic (NNLL) accuracy for the heavy-jet mass and $C$-parameter distributions in the decay of a Higgs boson to…

High Energy Physics - Phenomenology · Physics 2025-12-04 Elliot Fox , Aude Gehrmann-De Ridder , Thomas Gehrmann , Nigel Glover , Matteo Marcoli , Christian T. Preuss

We present improved predictions of a class of event-shape distributions called angularity for a contribution from an effective operator $H\to gg$ in Higgs hadronic decay that suffers from large perturbative uncertainties. In the frame of…

High Energy Physics - Phenomenology · Physics 2024-11-22 Jiawei Zhu , Yujin Song , Jun Gao , Daekyoung Kang , Tanmay Maji

We use a direct QCD approach to carry out the next-to-next-to-leading logarithmic (NNLL) resummation for observables groomed with the modified mass-drop tagger (Soft Drop $\beta=0$). We focus on observables which are additive given an…

High Energy Physics - Phenomenology · Physics 2023-10-30 Mrinal Dasgupta , Basem Kamal El-Menoufi , Jack Helliwell

The possibility to reanalyse data taken by the HERA experiments offers the chance to study modern QCD jet and event-shape observables in deep-inelastic scattering production. In this contribution we present resummed and matched predictions…

High Energy Physics - Phenomenology · Physics 2024-07-03 Max Knobbe , Daniel Reichelt , Steffen Schumann , Leon Stöcker

We present predictions for the thrust distribution in hadronic decays of the Higgs boson at the next-to-leading order and the approximate next-to-next-to-leading order. The approximate NNLO corrections are derived from a factorization…

High Energy Physics - Phenomenology · Physics 2022-07-12 Jun Gao , Yinqiang Gong , Wan-Li Ju , Li Lin Yang

We discuss the status of resummation of large logarithmic contributions to groomed event shapes of hadronic final states in electron-positron annihilation. We identify the missing ingredients needed for next-to-next-to-next-to-leading…

High Energy Physics - Phenomenology · Physics 2020-07-08 Adam Kardos , Andrew J. Larkoski , Zoltán Trócsányi

We present a calculation of the thrust distribution in Higgs decays to quarks and gluons, $H\to b\bar{b}$, $H\to c\bar{c}$, and $H\to gg$, including the resummation of large logarithmic corrections that arise in the two-particle limit at…

High Energy Physics - Phenomenology · Physics 2025-10-14 Elliot Fox , Aude Gehrmann-De Ridder , Thomas Gehrmann , Nigel Glover , Matteo Marcoli , Christian T. Preuss

We present results for matched distributions of a range of dijet event shapes at hadron colliders, combining next-to-leading logarithmic (NLL) accuracy in the resummation exponent, next-to-next-to leading logarithmic (NNLL) accuracy in its…

High Energy Physics - Phenomenology · Physics 2014-11-20 Andrea Banfi , Gavin P. Salam , Giulia Zanderighi

The possibility to reanalyse data taken by the HERA experiments offers the chance to study modern QCD jet and event-shape observables in deep-inelastic scattering. To address this, we compute resummed and matched predictions for the…

High Energy Physics - Phenomenology · Physics 2023-09-28 Max Knobbe , Daniel Reichelt , Steffen Schumann

We consider Standard Model Higgs boson production in association with a W boson in hadron collisions. We supplement the fully exclusive perturbative computation of QCD radiative effects up to next-to-next-to-leading order (NNLO) with the…

High Energy Physics - Phenomenology · Physics 2014-04-15 Giancarlo Ferrera , Massimiliano Grazzini , Francesco Tramontano

We study the six classical event-shape observables in hadronic Higgs decays at next-to-leading order in QCD. To this end, we consider the decay of on-shell Higgs bosons to three partons, taking into account both the Yukawa-induced decay to…

High Energy Physics - Phenomenology · Physics 2022-06-22 Guglielmo Coloretti , Aude Gehrmann-De Ridder , Christian T Preuss

We present predictions for hadronic decays of the Higgs boson at next-to-next-to-leading order (NNLO) in QCD matched with parton shower based on the POWHEG framework. Those include decays into bottom quarks with full bottom-quark mass…

High Energy Physics - Phenomenology · Physics 2021-11-01 YaLu Hu , ChuanLe Sun , Xiao-Min Shen , Jun Gao

We consider the Higgsstrahlung process in hadronic collisions and present the computation of next-to-next-to-leading order predictions matched to parton showers for both production and $H\to b\bar{b}$ decay employing the MiNNLO$_{\rm PS}$…

High Energy Physics - Phenomenology · Physics 2022-07-06 Silvia Zanoli , Mauro Chiesa , Emanuele Re , Marius Wiesemann , Giulia Zanderighi

Jet angularities are a class of jet substructure observables where a continuous parameter is introduced in order to interpolate between different classic observables such as the jet mass and jet broadening. We consider jet angularities…

High Energy Physics - Phenomenology · Physics 2019-04-29 Zhong-Bo Kang , Kyle Lee , Xiaohui Liu , Felix Ringer

In this work we perform the first ever calculation of jet event shapes at hadron colliders at next-to-next-to leading order (NNLO) in QCD. The inclusion of higher order corrections removes the shape difference observed between data and…

High Energy Physics - Phenomenology · Physics 2023-04-05 Manuel Alvarez , Josu Cantero , Michal Czakon , Javier Llorente , Alexander Mitov , Rene Poncelet
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