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相关论文: Three-jet production in POWHEG

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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…

高能物理 - 唯象学 · 物理学 2011-08-31 Stefan Hoeche , Frank Krauss , Marek Schonherr , Frank Siegert

We present a next-to-leading order (NLO) calculation of $t\bar{t}$ production in hadronic collisions interfaced to shower generators according to the POWHEG method. We start from an NLO result from previous work, obtained in the zero width…

高能物理 - 唯象学 · 物理学 2016-01-19 John M. Campbell , R. Keith Ellis , Paolo Nason , Emanuele Re

We present results for Higgs boson pair production with variations of the trilinear Higgs boson self-coupling at next-to-leading order (NLO) in QCD including the full top quark mass dependence. Differential results at 14 TeV are presented,…

高能物理 - 唯象学 · 物理学 2019-06-25 G. Heinrich , S. P. Jones , M. Kerner , G. Luisoni , L. Scyboz

We compare a NLO W gamma matrix element generator with the leading order calculation in Pythia . A matching scheme between a next-to-leading order W gamma matrix element generator by Baur et. al. and the Pythia parton shower is presented.…

高能物理 - 唯象学 · 物理学 2010-02-24 D. Majumder , K. Mazumdar , T. Sjostrand

We present a next-to-leading order calculation of Higgs boson production plus one and two jets via gluon fusion interfaced to shower Monte Carlo programs, implemented according to the POWHEG method. For this implementation we have used a…

高能物理 - 唯象学 · 物理学 2015-06-04 John M. Campbell , R. Keith Ellis , Rikkert Frederix , Paolo Nason , Carlo Oleari , Ciaran Williams

Triple gauge boson hadroproduction, in particular the production of three $W$-bosons at the LHC, is considered at next-to leading order accuracy in QCD. The NLO matrix elements are combined with parton showers. Multijet merging is invoked…

高能物理 - 唯象学 · 物理学 2014-06-11 S. Hoeche , F. Krauss , S. Pozzorini , M. Schoenherr , J. M. Thompson , K. C. Zapp

We present an implementation of electroweak Z-boson production in association with two jets at hadron colliders in the POWHEG framework, a method that allows the interfacing of NLO-QCD calculations with parton-shower Monte Carlo programs.…

高能物理 - 唯象学 · 物理学 2015-06-05 Barbara Jager , Steven Schneider , Giulia Zanderighi

We present an implementation of electroweak W+W-jj production at hadron colliders in the POWHEG framework, a method that allows the interfacing of a next-to-leading order QCD calculation with parton shower Monte Carlo programs. We provide…

高能物理 - 唯象学 · 物理学 2015-06-12 Barbara Jager , Giulia Zanderighi

The aim of this work is to describe in detail the POWHEG method, first suggested by one of the authors, for interfacing parton-shower generators with NLO QCD computations. We describe the method in its full generality, and then specify its…

高能物理 - 唯象学 · 物理学 2009-11-13 Stefano Frixione , Paolo Nason , Carlo Oleari

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…

高能物理 - 唯象学 · 物理学 2023-08-16 Silvia Ferrario Ravasio , Carlo Oleari

Prompt photon production is highly sensitive to the distribution of quarks and gluons in free protons and nuclei and an important baseline for phenomenological studies of the properties of the quark-gluon plasma. In this paper, we present a…

高能物理 - 唯象学 · 物理学 2024-09-04 Tomáš Ježo , Michael Klasen , Alexander Neuwirth

The cross section for producing three high transverse energy jets with a three-jet invariant mass of M_3J > 50 GeV has been measured in photoproduction at HERA. The angular distribution of the three jets is presented and found to be…

高能物理 - 实验 · 物理学 2007-05-23 L. E. Sinclair

We present a calculation of the next-to-leading order (NLO) QCD corrections to gluon-induced electroweak gauge boson pair production, $gg \to ZZ$ and $gg \to W^+W^-$, matched to the PYTHIA8 parton shower in the POWHEG approach. The…

高能物理 - 唯象学 · 物理学 2021-08-18 Simone Alioli , Silvia Ferrario Ravasio , Jonas M. Lindert , Raoul Röntsch

We compute the production cross section of a top-antitop pair in association with a jet at hadron colliders at next-to-leading order accuracy matched with parton shower algorithms to make predictions at the hadron level. The parton shower…

高能物理 - 唯象学 · 物理学 2015-03-17 Adam Kardos , Costas Papadopoulos , Zoltan Trocsanyi

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…

高能物理 - 唯象学 · 物理学 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

We study the theoretical uncertainties in the determination of the top-quark mass using next-to-leading-order (NLO) generators, that describe the top-quark decay at different levels of accuracy, interfaced to parton showers (PS).…

高能物理 - 唯象学 · 物理学 2018-08-29 Silvia Ferrario Ravasio , Tomáš Ježo

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…

高能物理 - 唯象学 · 物理学 2019-04-12 Barbara Jager , Alexander Karlberg , Johannes Scheller

In the algorithm presented here, the ME+PS approach to merge samples of tree-level matrix elements into inclusive event samples is combined with the POWHEG method, which includes exact next-to-leading order matrix elements in the parton…

高能物理 - 唯象学 · 物理学 2011-09-28 Frank Siegert , Stefan Hoeche , Frank Krauss , Marek Schonherr

We present a next-to-leading order calculation of single-top production interfaced to Shower Monte Carlo programs, implemented according to the POWHEG method. A detailed comparison with MC@NLO and PYTHIA is carried out for several…

高能物理 - 唯象学 · 物理学 2010-03-03 Simone Alioli , Paolo Nason , Carlo Oleari , Emanuele Re

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…

高能物理 - 唯象学 · 物理学 2015-05-30 Simone Alioli , Keith Hamilton , Emanuele Re