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We present next-to-next-to-leading-order (NNLO) QCD corrections for Higgs production through bottom-quark annihilation (\bbH{}) matched to parton showers (NNLO+PS) using the \minnlo{} technique. The \minnlo{} method is adapted for the extra…

High Energy Physics - Phenomenology · Physics 2024-07-15 Christian Biello , Aparna Sankar , Marius Wiesemann , Giulia Zanderighi

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

We report on the implementation of a new NNLO+PS event generator for the Higgs production via bottom annihilation using the MiNNLOPS method in the POWHEG framework. The calculation has been carried out in the five flavour scheme (5FS),…

High Energy Physics - Phenomenology · Physics 2024-05-17 Christian Biello

We consider the MiNNLO$_{\rm PS}$ method to consistently combine next-to-next-to-leading order (NNLO) QCD calculations with parton-shower simulations. We identify the main sources of differences between MiNNLO$_{\rm PS}$ and fixed-order…

High Energy Physics - Phenomenology · Physics 2020-12-30 Pier Francesco Monni , Emanuele Re , Marius Wiesemann

We study Higgs-boson production in association with a top-quark pair ($t\bar{t}H$) at hadron colliders and present the first matching of next-to-next-to-leading order (NNLO) QCD corrections to parton showers using the MiNNLOPS method. For…

High Energy Physics - Phenomenology · Physics 2026-03-09 Christian Biello , Chiara Savoini , Chiara Signorile-Signorile , Marius Wiesemann

We study the production of a Higgs boson in association with a bottom-quark pair ($b \bar b H$) at hadron colliders. Our calculation is performed in the four-flavour scheme with massive bottom quarks. This work presents the first…

High Energy Physics - Phenomenology · Physics 2025-03-13 Christian Biello , Javier Mazzitelli , Aparna Sankar , Marius Wiesemann , Giulia Zanderighi

We present a novel method to combine QCD calculations at next-to-next-to-leading order (NNLO) with parton shower (PS) simulations, that can be applied to the production of heavy systems in hadronic collisions, such as colour singlets or a…

High Energy Physics - Phenomenology · Physics 2022-01-11 Pier Francesco Monni , Paolo Nason , Emanuele Re , Marius Wiesemann , Giulia Zanderighi

We consider $ZZ$ production in hadronic collisions and present state-of-the-art predictions in QCD perturbation theory matched to parton showers. Next-to-next-to-leading order corrections to the quark-initiated channel are combined with…

High Energy Physics - Phenomenology · Physics 2022-02-02 Luca Buonocore , Gabriël Koole , Daniele Lombardi , Luca Rottoli , Marius Wiesemann , Giulia Zanderighi

We present a next-to-next-to-leading order (NNLO) accurate description of associated HZ production, followed by the Higgs boson decay into a pair of $b$-quarks treated at next-to-leading order (NLO), consistently matched to a parton shower…

High Energy Physics - Phenomenology · Physics 2018-04-24 William Astill , Wojciech Bizon , Emanuele Re , Giulia Zanderighi

We consider $Z \gamma$ production in hadronic collisions and present the first computation of next-to-next-to-leading order accurate predictions consistently matched to parton showers (NNLO+PS). Spin correlations, interferences and…

High Energy Physics - Phenomenology · Physics 2021-07-07 Daniele Lombardi , Marius Wiesemann , Giulia Zanderighi

The Higgs boson production cross section at pp and p\bar{p} colliders is calculated in QCD at next-to-next-to-leading order (NNLO). We find that the perturbative expansion of the production cross section is well behaved and that scale…

High Energy Physics - Phenomenology · Physics 2009-11-07 Robert V. Harlander , William B. Kilgore

We consider the production of a Z boson decaying to leptons in association with a bottom-quark pair in hadronic collisions. For the first time, we compute predictions at next-to-next-to-leading order (NNLO) in QCD, and we combine them with…

High Energy Physics - Phenomenology · Physics 2024-06-21 Javier Mazzitelli , Vasily Sotnikov , Marius Wiesemann

The total cross section for Higgs production in bottom-quark annihilation is evaluated at next-to-next-to-leading order (NNLO) in QCD. This is the first time that all terms at order alpha_s^2 are taken into account. We find a greatly…

High Energy Physics - Phenomenology · Physics 2009-11-10 Robert V. Harlander , William B. Kilgore

We summarize the current status and near future prospects for next-to-next-to-leading order calculations matched to parton shower based on the MiNNLO$_{\rm PS}$ method. We give a theoretical overview, illustrate selected results for $ZZ\to…

We consider $W^+W^-$ production in hadronic collisions and present the computation of next-to-next-to-leading order accurate predictions consistently matched to parton showers (NNLO+PS) using the MiNNLO$_{\rm PS}$ method. Spin correlations,…

High Energy Physics - Phenomenology · Physics 2022-01-05 Daniele Lombardi , Marius Wiesemann , Giulia Zanderighi

We consider the production of a Standard-Model (SM) Higgs boson in gluon fusion in hadronic collisions and compute the QCD corrections up to next-to-next-to-leading order (NNLO) and match them to parton showers (NNLO+PS). The complete…

High Energy Physics - Phenomenology · Physics 2024-10-22 Marco Niggetiedt , Marius Wiesemann

We present an event generator that describes the Higgs boson decay into $b$-quarks at next-to-next-to-leading-order (NNLO) in QCD and allows for a consistent matching to parton shower. For this purpose, we work within the POWHEG framework…

High Energy Physics - Phenomenology · Physics 2020-06-24 Wojciech Bizon , Emanuele Re , Giulia Zanderighi

We present the calculation of next-to-next-to-leading order (NNLO) corrections in perturbative QCD for the production of a Higgs boson decaying into a pair of bottom quarks in association with a leptonically decaying weak vector boson:…

High Energy Physics - Phenomenology · Physics 2020-01-08 R. Gauld , A. Gehrmann-De Ridder , E. W. N. Glover , A. Huss , I. Majer

We present next-to-next-to leading order (NNLO) quantum electrodynamics (QED) corrections to the production of the Higgs boson in bottom quark annihilation at the Large Hadron Collider (LHC) in the five flavor scheme. We have systematically…

High Energy Physics - Phenomenology · Physics 2019-12-18 Ajjath A H , Pulak Banerjee , Amlan Chakraborty , Prasanna K. Dhani , Pooja Mukherjee , Narayan Rana , V. Ravindran

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
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