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Related papers: NLO vector-boson production matched with shower in…

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We present a generator for the production of a Higgs boson H in association with a vector boson V=W or Z (including subsequent V decay) plus zero and one jet, that can be used in conjunction with general-purpose shower Monte Carlo…

High Energy Physics - Phenomenology · Physics 2015-06-16 Gionata Luisoni , Paolo Nason , Carlo Oleari , Francesco Tramontano

We present predictions for the production cross section of a Standard Model Higgs boson in association with a top-antitop pair at next-to-leading order accuracy using matrix elements obtained from the HELAC-Oneloop package. The NLO…

High Energy Physics - Phenomenology · Physics 2011-11-10 M. V. Garzelli , A. Kardos , C. G. Papadopoulos , Z. Trocsanyi

We consider the POWHEG generator for a H/W/Z boson plus one jet, augmented with the recently proposed MiNLO method for the choice of scales and the inclusion of Sudakov form factors. Within this framework, the generator covers all the…

High Energy Physics - Phenomenology · Physics 2015-06-12 Keith Hamilton , Paolo Nason , Carlo Oleari , Giulia Zanderighi

We present the implementation of a next-to-leading-order plus parton-shower event generator for the hadronic production of a heavy charm quark accompanied by a leptonically-decaying $W$ boson in the POWHEG BOX RES framework. We consider…

High Energy Physics - Phenomenology · Physics 2023-08-16 Silvia Ferrario Ravasio , Carlo Oleari

We present a next-to-leading order (NLO) treatment of the production of a new charged heavy vector boson, generically called W', at hadron colliders via the Drell-Yan process. We fully consider the interference effects with the Standard…

High Energy Physics - Phenomenology · Physics 2009-08-05 Andreas Papaefstathiou , Oluseyi Latunde-Dada

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

We present the implementation of electroweak Zjj and Wjj production via vector boson fusion with fully leptonic decays at NLO QCD in the POWHEG framework. These processes represent an important background to Higgs searches in vector boson…

High Energy Physics - Phenomenology · Physics 2013-04-12 Franziska Schissler , Dieter Zeppenfeld

We give a status report on the automation of next-to-leading order processes within the Monte Carlo event generator WHIZARD, using GoSam and OpenLoops as provider for one-loop matrix elements. To deal with divergences, WHIZARD uses…

High Energy Physics - Phenomenology · Physics 2016-12-21 J. Reuter , B. Chokoufe , A. Hoang , W. Kilian , M. Stahlhofen , T. Teubner , C. Weiss

Extending previous work on the predictions for the production of supersymmetric (SUSY) particles at the LHC, we present the fully differential calculation of the next-to-leading order (NLO) SUSY-QCD corrections to the production of squark…

High Energy Physics - Phenomenology · Physics 2015-06-22 Ryan Gavin , Christian Hangst , Michael Krämer , Margarete Mühlleitner , Mathieu Pellen , Eva Popenda , Michael Spira

We report on a method for matching the next-to-leading order calculation of QCD jet production in e+e- annihilation with a Monte Carlo parton shower event generator (MC) to produce realistic final states. The final result is accurate to…

High Energy Physics - Phenomenology · Physics 2008-11-26 Michael Krämer , Stephen Mrenna , Davison E. Soper

We present a next-to-leading order QCD calculation for the electroweak production of a pair of same-sign weak gauge bosons in association with three jets in the region dominated by vector boson scattering, and its matching with…

High Energy Physics - Phenomenology · Physics 2025-01-29 Barbara Jäger , Santiago Lopez Portillo Chavez

We present a new Monte-Carlo generator for the simulation of di-jet production in polarized proton-proton collisions at the next-to-leading order in QCD matched to parton showers using the framework of the POWHEG BOX. With this program we…

High Energy Physics - Phenomenology · Physics 2026-02-06 Ignacio Borsa , David Betz , Barbara Jäger

We describe the \POWHEGBOX{} package, a general computer code framework for implementing NLO calculations in Shower Monte Carlo programs according to the \POWHEG{} method.

High Energy Physics - Phenomenology · Physics 2010-09-14 Simone Alioli

In this publication, an algorithm is presented that combines the ME+PS approach to merge sequences of tree-level matrix elements into inclusive event samples with the POWHEG method, which combines exact next-to-leading order matrix element…

High Energy Physics - Phenomenology · Physics 2011-08-31 Stefan Hoeche , Frank Krauss , Marek Schonherr , Frank Siegert

We present theoretical predictions for the hadroproduction of t tbar W+, t tbar W- and t tbar Z at LHC as obtained by matching numerical computations at NLO accuracy in QCD with Shower Monte Carlo programs. The calculation is performed by…

High Energy Physics - Phenomenology · Physics 2012-12-03 M. V. Garzelli , A. Kardos , C. G. Papadopoulos , Z. Trócsányi

We present results for the QCD next-to-leading order (NLO) calculation of single-top t-channel production in the 4-flavour scheme, interfaced to Parton Shower (PS) Monte Carlo programs according to the POWHEG and MC@NLO methods. Comparisons…

High Energy Physics - Phenomenology · Physics 2015-06-05 Rikkert Frederix , Emanuele Re , Paolo Torrielli

This note documents the use of the POWHEG-hvq package, a generator for heavy flavour hadroproduction at next-to-leading order in QCD, that can be easily interfaced to shower Monte Carlo programs, in such a way that NLO and shower accuracy…

High Energy Physics - Phenomenology · Physics 2007-07-23 Stefano Frixione , Paolo Nason , Giovanni Ridolfi

In this article we generalise POWHEG next-to-leading order parton shower (NLOPS) simulations of vector boson production and vector boson production in association with a single jet, to give matrix element corrected MENLOPS simulations. In…

High Energy Physics - Phenomenology · Physics 2015-05-30 Simone Alioli , Keith Hamilton , Emanuele Re

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

One of the most important developments in Monte Carlo simulation of collider events for the LHC has been the arrival of schemes and codes for matching of parton showers to matrix elements calculated at next-to-leading order in the QCD…

High Energy Physics - Phenomenology · Physics 2017-12-21 Andy Buckley , Debottam Bakshi Gupta