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相关论文: An interface between the POWHEG BOX and MadGraph5_…

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We present a NNLO QCD accurate event generator for direct photon pair production at hadron colliders, based on the MiNNLOPS formalism, within the POWHEG BOX RES framework. Despite the presence of the photons requires the use of isolation…

高能物理 - 唯象学 · 物理学 2022-09-28 Alessandro Gavardi , Carlo Oleari , Emanuele Re

We present results of the simulation of electroweak Higgs boson production at the Large Hadron Collider using both the NLO multijet merging and NLO matching frameworks provided by the general purpose event generator Herwig 7. For the…

高能物理 - 唯象学 · 物理学 2022-08-17 Tinghua Chen , Terrance M. Figy , Simon Plätzer

We present a next-to-leading order calculation of Higgs boson production via gluon fusion interfaced to shower Monte Carlo programs, implemented according to the POWHEG method. A detailed comparison with MC@NLO and PYTHIA is carried out for…

高能物理 - 唯象学 · 物理学 2010-01-15 Simone Alioli , Paolo Nason , Carlo Oleari , Emanuele Re

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…

高能物理 - 唯象学 · 物理学 2011-05-18 Stefan Hoeche , Frank Krauss , Marek Schonherr , Frank Siegert

The positive weight next-to-leading-order matching formalism (POWHEG) is applied to Deep Inelastic Scattering (DIS) and the related Higgs boson production via vector-boson fusion process in the Herwig++ Monte Carlo event generator. This…

高能物理 - 唯象学 · 物理学 2015-05-28 Luca D'Errico , Peter Richardson

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

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 an implementation of the next-to-leading order dijet production process in hadronic collisions in the framework of POWHEG, which is a method to implement NLO calculations within a shower Monte Carlo context. In constructing the…

高能物理 - 唯象学 · 物理学 2015-05-20 Simone Alioli , Keith Hamilton , Paolo Nason , Carlo Oleari , Emanuele Re

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

In this article we present an event generator based on the Monte Carlo program Powheg in combination with the matrix-element generator Recola. We apply it to compute NLO electroweak corrections to same-sign W-boson scattering, which have…

高能物理 - 唯象学 · 物理学 2020-02-19 Mauro Chiesa , Ansgar Denner , Jean-Nicolas Lang , Mathieu Pellen

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

We present an implementation of the next-to-leading order hadronic production of a W boson in association with a pair of massive bottom quarks in the framework of POWHEG, a method to consistently interface NLO QCD calculations with shower…

高能物理 - 唯象学 · 物理学 2015-05-28 Carlo Oleari , Laura Reina

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…

高能物理 - 唯象学 · 物理学 2007-05-23 Stefano Frixione , Bryan R. Webber

We study the production of Higgs boson pairs via gluon fusion at the LHC in the Two-Higgs-Doublet Model. We present predictions at NLO accuracy in QCD, matched to parton showers through the MC@NLO method. A dedicated reweighting technique…

高能物理 - 唯象学 · 物理学 2014-10-01 Benoit Hespel , David Lopez-Val , Eleni Vryonidou

We present an extension of the JHUGen and MELA framework, which includes an event generator and library for the matrix element analysis. It enables simulation, optimal discrimination, reweighting techniques, and analysis of a bosonic…

高能物理 - 唯象学 · 物理学 2021-01-29 Andrei V. Gritsan , Jeffrey Roskes , Ulascan Sarica , Markus Schulze , Meng Xiao , Yaofu Zhou

The PowHel framework allows to make predictions of total and differential cross-sections of multiparticle hadroproduction processes at both NLO QCD accuracy and NLO QCD matched to Parton Shower, on the basis of the interface between the…

高能物理 - 唯象学 · 物理学 2013-08-13 M. V. Garzelli , A. Kardos , C. G. Papadopoulos , Z. Trocsanyi

The matrix element (ME) calculation in any Monte Carlo physics event generator is an ideal fit for implementing data parallelism with lockstep processing on GPUs and vector CPUs. For complex physics processes where the ME calculation is the…

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…

高能物理 - 唯象学 · 物理学 2009-05-20 Keith Hamilton , Peter Richardson , Jon Tully

Madgraph5_aMC@NLO is one of the most-frequently used Monte-Carlo event generators at the LHC, and an important consumer of compute resources. The software has been reengineered to maintain the overall look and feel of the user interface…

This is the user's manual of MC@NLO 2.3. 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…

高能物理 - 唯象学 · 物理学 2007-05-23 S. Frixione , B. R. Webber