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Related papers: A critical appraisal of NLO+PS matching methods

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The measurement of the Higgs boson width is a critical test of the Standard Model, with significant implications for understanding electroweak symmetry breaking. Direct measurements are limited by detector resolution, but it can be measured…

High Energy Physics - Phenomenology · Physics 2025-09-10 Rafael Coelho Lopes de Sá , Martina Javurkova , Matteo Lazzeretti , Raoul Röntsch

We present the complete calculation of $W$-boson production in association with a jet in hadronic collisions through next-to-next-to-leading order in perturbative QCD. To cancel infrared divergences we introduce a new subtraction method…

High Energy Physics - Phenomenology · Physics 2016-08-08 Radja Boughezal , Christfried Focke , Xiaohui Liu , Frank Petriello

We present predictions for $W^+W^-$ production (with exact decays) that are next-to-next-to-leading order (NNLO) accurate and consistently matched to a parton shower. The matching is achieved by upgrading, with MiNLO, the NLO calculation of…

High Energy Physics - Phenomenology · Physics 2018-08-29 Emanuele Re

Higher order calculations are necessary to predict and describe measurements in high energy collider physics. In recent years multiple approaches to combine multiple next-to-leading (NLO) order corrections with parton showers had been…

High Energy Physics - Phenomenology · Physics 2016-07-08 Johannes Bellm

The search for new interactions and particles in high-energy collider physics relies on precise background predictions. This has led to many advances in combining precise fixed-order cross-section calculations with detailed event generator…

High Energy Physics - Phenomenology · Physics 2021-11-24 Stefan Prestel

We present an implementation of Higgs-boson production in association with a hard, isolated photon via vector-boson fusion in the framework of the POWHEG BOX for the consistent matching of next-to-leading order QCD corrections with parton…

High Energy Physics - Phenomenology · Physics 2026-05-14 Barbara Jäger , Simon Reinhardt

The search for the Higgs boson(s) is one of the major priorities at the upgraded Fermilab Tevatron and at the CERN Large Hadron Collider (LHC). Monte Carlo event generators (MCs) are heavily utilized to extract and interpret the Higgs…

High Energy Physics - Phenomenology · Physics 2009-10-31 C. Balazs , J. Huston , I. Puljak

We investigate the di-Higgs events through $Z_H$-pair production at the CERN Large Hadron Collider including the pure next-to-leading order (NLO) QCD correction and the $gg$-fusion contribution in the framework of the littlest Higgs model…

High Energy Physics - Phenomenology · Physics 2014-09-24 Chen Liang-Wen , Zhang Ren-You , Ma Wen-Gan , Li Wei-Hua , Duan Peng-Fei , Guo Lei

We present a next-to-leading order plus parton-shower event generator for the production of a W boson plus two bottom quarks and a jet at hadron colliders, implemented in the POWHEG BOX framework. Bottom-mass effects and spin correlations…

High Energy Physics - Phenomenology · Physics 2015-05-20 Gionata Luisoni , Carlo Oleari , Francesco Tramontano

We study a phenomenological ansatz for merging next-to-next-to-leading order (NNLO) calculations with Monte Carlo event generators. We reweight them to match bin-integrated NNLO differential distributions. To test this procedure, we study…

High Energy Physics - Phenomenology · Physics 2009-11-11 Giovanna Davatz , Fabian Stoeckli , Charalampos Anastasiou , Guenther Dissertori , Michael Dittmar , Kirill Melnikov , Frank Petriello

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…

In this article we describe simulations of ZZ, WZ and WW production based on the positive weight next-to-leading-order matching scheme, Powheg, in the Herwig++ event generator. Building on earlier efforts within the Herwig++ framework, the…

High Energy Physics - Phenomenology · Physics 2011-03-07 Keith Hamilton

We present an implementation of $WZjj$ production via vector-boson fusion in the POWHEG BOX, a public tool for the matching of next-to-leading order QCD calculations with multi-purpose parton-shower generators. We provide phenomenological…

High Energy Physics - Phenomenology · Physics 2019-04-12 Barbara Jager , Alexander Karlberg , Johannes Scheller

The production in association with a top quark is the most promising search channel for charged Higgs bosons at the LHC. We review its theoretical description including next-to-leading order corrections and the combination with a parton…

High Energy Physics - Phenomenology · Physics 2010-12-20 Tilman Plehn , Carole Weydert

The hadronic production of a Higgs boson (H) in association with b jets will play an important role in investigating the Higgs-boson couplings to Standard Model particles during Run II of the CERN Large Hadron Collider, and could in…

High Energy Physics - Phenomenology · Physics 2016-02-03 Barbara Jager , Laura Reina , Doreen Wackeroth

This is the user's manual of MC@NLO 3.1. This package is a practical implementation, based upon the HERWIG event generator, of the MC@NLO formalism, which allows one to incorporate NLO QCD matrix elements consistently into a parton shower…

High Energy Physics - Phenomenology · Physics 2007-05-23 Stefano Frixione , Bryan R. Webber

We study the production of a Higgs boson in association with bottom quarks in hadronic collisions, and present phenomenological predictions relevant to the 13 TeV LHC. Our results are accurate to the next-to-leading order in QCD, and…

High Energy Physics - Phenomenology · Physics 2015-06-22 M. Wiesemann , R. Frederix , S. Frixione , V. Hirschi , F. Maltoni , P. Torrielli

We include finite top- and bottom-mass effects in the next-to-next-to-leading order parton shower (NNLOPS) event generator for inclusive Higgs boson production in gluon fusion based upon the POWHEG+MiNLO approach. Since fixed-order results…

High Energy Physics - Phenomenology · Physics 2015-01-21 Keith Hamilton , Paolo Nason , Giulia Zanderighi

We introduce a twiki page with collections of generated Monte Carlo event samples in proton-proton collisions at LHC energies including a heavy quark-antiquark pair in the final state. These samples are generated with the POWHEG method and…

High Energy Physics - Phenomenology · Physics 2011-11-08 M. V. Garzelli , Adam Kardos , Zoltán Trócsányi

We present a calculation of the next-to-leading order QCD corrections to weakino+squark production processes at hadron colliders and their implementation in the framework of the POWHEG-BOX, a tool for the matching of fixed-order…

High Energy Physics - Phenomenology · Physics 2021-12-17 Julien Baglio , Gabriele Coniglio , Barbara Jager , Michael Spira