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Related papers: Vector boson plus one jet production in POWHEG

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The associated production of charged Higgs bosons and top quarks at hadron colliders is an important discovery channel to establish the existence of a non-minimal Higgs sector. Here, we present details of a next-to-leading order (NLO)…

High Energy Physics - Phenomenology · Physics 2012-10-19 M. Klasen , K. Kovarik , P. Nason , C. Weydert

In this article we describe simulations of Higgs boson production via the gluon fusion and Higgs-strahlung processes, using the positive weight next-to-leading-order (NLO) matching scheme, POWHEG, in the Herwig++ 2.3 event generator. This…

High Energy Physics - Phenomenology · Physics 2009-05-20 Keith Hamilton , Peter Richardson , Jon Tully

We present an implementation for slepton pair production at hadron colliders in the POWHEG BOX, a framework for combining next-to-leading order QCD calculations with parton-shower Monte-Carlo programs. Our code provides a SUSY Les Houches…

High Energy Physics - Phenomenology · Physics 2015-06-11 Barbara Jager , Andreas von Manteuffel , Stephan Thier

We present a new Monte Carlo event generator for the hadronic production of four top quarks in the POWHEG BOX framework. Besides the dominant next-to-leading order QCD corrections at $\mathcal{O}(\alpha_s^5)$ we also include all subleading…

High Energy Physics - Phenomenology · Physics 2022-07-06 Tomáš Ježo , Manfred Kraus

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 calculation of the next-to-leading order (NLO) QCD corrections to the hadroproduction process $gg\to ZZ \to e^+e^- \mu^+ \mu^-$, matched to the parton shower in the POWHEG framework. We take advantage of the POWHEG BOX tool for…

High Energy Physics - Phenomenology · Physics 2017-03-08 Simone Alioli , Fabrizio Caola , Gionata Luisoni , Raul Röntsch

We present heavy-flavor production in association with one jet in hadronic collisions matched to parton shower Monte Carlo predictions at next-to-leading order QCD with account of top-quark decays and spin correlations. We use the POWHEGBOX…

High Energy Physics - Phenomenology · Physics 2012-06-11 Simone Alioli , Juan Fuster , Adrian Irles , Sven-Olaf Moch , Peter Uwer , Marcel Vos

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 a next-to-leading order accurate simulation of t-channel single-top plus jet production matched to parton showers via the POWHEG method. The calculation underlying the simulation is enhanced with a process-specific implementation…

High Energy Physics - Phenomenology · Physics 2018-10-17 Stefano Carrazza , Rikkert Frederix , Keith Hamilton , Giulia Zanderighi

We detail a calculation of W gamma production in hadronic collision, at Next-to-Leading Order (NLO) QCD interfaced to a shower generator according to the POWHEG prescription supplemented with the MiNLO procedure. The fixed order result is…

High Energy Physics - Phenomenology · Physics 2015-06-22 Luca Barze , Mauro Chiesa , Guido Montagna , Paolo Nason , Oreste Nicrosini , Fulvio Piccinini , Valeria Prosperi

A new implementation of the POWHEG method into the Monte-Carlo event generator Sherpa is presented, focusing on processes with a simple colour structure. Results for a variety of processes, namely e+e- to hadrons, deep-inelastic…

High Energy Physics - Phenomenology · Physics 2011-05-18 Stefan Hoeche , Frank Krauss , Marek Schonherr , Frank Siegert

Photoproduction processes have gained a renewed interest following the approval of the EIC, making their implementation in Monte Carlo event generators highly desirable. We present recent efforts to develop a POWHEG BOX extension simulating…

High Energy Physics - Phenomenology · Physics 2025-09-24 Alexander Feike , Tomáš Ježo , Michael Klasen

We present a next-to-leading order calculation of heavy flavour production in hadronic collisions that can be interfaced to shower Monte Carlo programs. The calculation is performed in the context of the POWHEG method. It is suitable for…

High Energy Physics - Phenomenology · Physics 2011-01-13 Stefano Frixione , Paolo Nason , Giovanni Ridolfi

In this work we illustrate the POWHEG BOX, a general computer code framework for implementing NLO calculations in shower Monte Carlo programs according to the POWHEG method. Aim of this work is to provide an illustration of the needed…

High Energy Physics - Phenomenology · Physics 2014-11-20 Simone Alioli , Paolo Nason , Carlo Oleari , Emanuele Re

In this contribution we present recent progress in the computation of next-to-leading order (NLO) QCD corrections for the production of an electroweak vector boson in association with jets at hadron colliders. We focus on results obtained…

High Energy Physics - Phenomenology · Physics 2022-03-02 Z. Bern , G. Diana , L. J. Dixon , F. Febres Cordero , D. Forde , T. Gleisberg , S. Hoeche , H. Ita , D. A. Kosower , D. Maitre , K. Ozeren

We present predictions for the production cross section of a Standard Model Z0-boson in association with a top-antitop pair at the next-to-leading order accuracy in QCD, matched with shower Monte Carlo programs to evolve the system down to…

High Energy Physics - Phenomenology · Physics 2012-04-23 M. V. Garzelli , A. Kardos , C. G. Papadopoulos , Z. Trocsanyi

We present a calculation of the next-to-leading order QCD corrections to slepton pair production in association with a jet at the LHC together with their implementation in the POWHEG BOX. For the simulation of parton-shower effects and the…

High Energy Physics - Phenomenology · Physics 2015-06-23 Barbara Jager , Andreas von Manteuffel , Stephan Thier

We consider the production of a single $Z$ or $W$ boson in association with jets at the LHC. We compute the corresponding cross sections by matching NLO QCD predictions with the Herwig++ and Pythia8 parton showers, and by merging all of the…

High Energy Physics - Phenomenology · Physics 2016-03-23 Rikkert Frederix , Stefano Frixione , Andreas Papaefstathiou , Stefan Prestel , Paolo Torrielli

The leptonic decays of the heavy gauge bosons W and/or Z provide a clear experimental signature at hadron colliders. The production of accompanying jets is an excellent signal to probe QCD, while also being the main background to many…

High Energy Physics - Phenomenology · Physics 2015-03-18 Flavia A. Dias , Emily Nurse , Gavin Hesketh

In this contribution we present results from the NLO computation of the production of a $W$ boson in association with three jets in hadronic collisions. The results are obtained by combining two programs: {\tt BlackHat} for the virtual…

High Energy Physics - Phenomenology · Physics 2014-11-20 C. F. Berger , Z. Bern , L. J. Dixon , F. Febres Cordero , D. Forde , T. Gleisberg , H. Ita , D. A. Kosower , D. Maitre