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This is the user's manual of MC@NLO 4.0. This package is a practical implementation, based upon the Fortran HERWIG and Herwig++ event generators, of the MC@NLO formalism, which allows one to incorporate NLO QCD matrix elements consistently…

High Energy Physics - Phenomenology · Physics 2010-10-06 Stefano Frixione , Fabian Stoeckli , Paolo Torrielli , Bryan R. Webber , Chris D. White

We describe the recent development of the Herwig++ event generator.

High Energy Physics - Phenomenology · Physics 2007-06-21 Martyn Gigg , Peter Richardson

We use HERWIRI1.031, a new Monte Carlo event generator for hadron-hadron scattering at high energies, to study the phenomenological effects of our approach of exact amplitude-based resummation in precision QCD calculations. W + jet(s)…

High Energy Physics - Phenomenology · Physics 2019-08-29 B. Shakerin , B. F. L. Ward

We report on the progress in work on improving precision of the standard model theoretical predictions for the top quark pair production and decay into six fermions at a linear collider. Two programs have been combined into a single Monte…

High Energy Physics - Phenomenology · Physics 2016-09-06 Adam Biernacik , Karol Kolodziej , Alejandro Lorca , Tord Riemann

We have implemented the new IR-improved Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-Callan-Symanzik (DGLAP-CS) kernels recently developed by one of us in the HERWIG6.5 environment to generate a new MC, HERWIRI1.0(31), for hadron-hadron…

High Energy Physics - Phenomenology · Physics 2010-05-11 B. F. L. Ward , S. Joseph , S. Majhi , S. A. Yost

We give a status report on new developments in the WHIZARD event generator, including NLO electroweak automation for $e^+e^-$ colliders, loop-induced processes, POWHEG matching, new features in the UFO interface and the current development…

Reaching the desired precision level for W and Z processes at the LHC will require a mixture of higher-order QCD and electroweak corrections. HERWIRI2 is a step in implementing QED x QCD exponentiation in a hadronic event generator. This…

High Energy Physics - Phenomenology · Physics 2013-11-22 Scott A. Yost , Valerie Halyo , Miroslav Hejna , B. F. L. Ward

We present a Monte-Carlo implementation of the Statistical Hadronization Model in e+e- collisions. The physical scheme is based on the statistical hadronization of massive clusters produced by the event generator Herwig within the…

High Energy Physics - Phenomenology · Physics 2015-06-04 C. Bignamini , F. Becattini , F. Piccinini

The new IR-improved Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-Callan-Symanzik (DGLAP-CS) kernels recently developed by one of us is implemented in the HERWIG6.5 environment to generate a new MC, HERWIRI1.0(31), for hadron-hadron scattering…

High Energy Physics - Phenomenology · Physics 2010-12-14 B. F. L. Ward , S. A. Yost

This is the user's manual of MC@NLO 3.2. 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 S. Frixione , B. R. Webber

We introduce the new IR-improved Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-Callan-Symanzik (DGLAP-CS) kernels recently developed by one of us into the HERWIG6.5 to generate a new MC, HERWIRI1.0(31), for hadron-hadron scattering at high…

High Energy Physics - Phenomenology · Physics 2015-05-18 B. F. L. Ward , S. Joseph , S. Majhi , S. A. Yost

We report an implementation of the hadron-hadron ($pp$ and $p\bar{p}$) collision mode to the Monte Carlo event generator ReneSANCe - the code that was previously developed for $e^+e^-$ collisions. The described extension of ReneSANCe…

High Energy Physics - Phenomenology · Physics 2023-01-25 Serge Bondarenko , Yahor Dydyshka , Lidia Kalinovskaya , Renat Sadykov , Vitaly Yermolchyk

Theoretical predictions in high energy physics are routinely provided in the form of Monte Carlo generators. Comparisons of predictions from different programs and/or different initialization set-ups are often necessary. MC-TESTER can be…

High Energy Physics - Phenomenology · Physics 2011-01-17 N. Davidson , P. Golonka , T. Przedzinski , Z. Was

Beyond 2025 we will enter the High-Luminosity era of the LHC, right after the upgrades of the third Long Shutdown of the Large Hadron Collider (LHC). The ongoing state-of-the-art experimental instrument upgrades require high-performance…

The Monte Carlo program KoralW version 1.42 is presented. It generates all four-fermion final states with multibranch dedicated Monte Carlo pre-samplers and complete, massive, Born matrix elements. The presamplers cover the entire phase…

High Energy Physics - Phenomenology · Physics 2009-10-31 S. Jadach , W. Placzek , M. Skrzypek , B. F. L. Ward , Z. Was

Vector-boson pair production is of great phenomenological importance at the LHC. These processes will help to validate the Standard Model at highest energies, and they may also open the door for the discovery of new physics potentially…

High Energy Physics - Phenomenology · Physics 2013-10-11 Stefan Gieseke , Tobias Kasprzik , Johann H. Kuhn

We here present some recent developments of MadGraph/MadEvent since the latest published version, 4.0. These developments include: Jet matching with Pythia parton showers for both Standard Model and Beyond the Standard Model processes,…

High Energy Physics - Phenomenology · Physics 2009-02-02 Johan Alwall , Pierre Artoisenet , Simon de Visscher , Claude Duhr , Rikkert Frederix , Michel Herquet , Olivier Mattelaer

We calculate the fiducial and differential $W^{\pm}/Z^0+jet(s)$ production cross-sections in the presence of electroweak (EW) corrections through virtual loop contributions to the matrix elements (MEs) of the processes and real partonic…

High Energy Physics - Phenomenology · Physics 2022-11-29 Neda Darvishi , M. R. Masouminia

The HERWIG 5.9 cluster hadronization model is briefly discussed here. It is shown that the model has peculiar behaviour when new heavy baryon resonances are included in the HERWIG 5.9 particle table. New fragmentation model is proposed to…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alexander Kupco

This is the user's manual of MC@NLO 2.0. 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