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200 papers

A procedure of implementing QCD corrections in Monte Carlo programs by a reweighting method is described for the photoproduction of W bosons at HERA. Tables for W boson production in LO and NLO are given in bins of the transverse momentum…

High Energy Physics - Experiment · Physics 2007-05-23 Kai-Peer O. Diener , Christian Schwanenberger , Michael Spira

We present a new release of the program iHixs. This easy-to-use tool allows to derive state of the art predictions for the inclusive production cross section of a Higgs boson at hadron colliders in the gluon fusion production mode. This…

High Energy Physics - Phenomenology · Physics 2018-09-26 Falko Dulat , Achilleas Lazopoulos , Bernhard Mistlberger

We present CRPropa 3.3, the latest release of the publicly available Monte Carlo framework for simulating the propagation of high-energy particles in astrophysical environments. This version introduces significant extensions that enables…

We describe the recent developments to extend the multi-parton interaction model of underlying events in Herwig++ into the soft, non-perturbative, regime. This allows the program to describe also minimum bias collisions in which there is no…

High Energy Physics - Phenomenology · Physics 2009-05-29 Manuel Bahr , Jonathan M. Butterworth , Stefan Gieseke , Michael H. Seymour

We revisit the hadronization and decay of excited heavy mesons and heavy baryons in Herwig 7 general-purpose event-generator, following four distinct steps: (i) Passing through the polarization of heavy hadrons at the end of parton shower…

High Energy Physics - Phenomenology · Physics 2024-08-06 M. R. Masouminia , P. Richardson

Next steps in development of the KrkNLO method of implementing NLO QCD corrections to hard processes in parton shower Monte Carlo programs are presented. This new method is a simpler alternative to other well-known approaches, such as…

High Energy Physics - Phenomenology · Physics 2016-08-10 S. Jadach , W. Placzek , S. Sapeta , A. Siodmok , M. Skrzypek

Herwig 7 is a general-purpose Monte Carlo generator of particle collisions comprising both hard perturbative as well as soft phenomenological physics. Herwig is therefore capable to describe the entire final state of hadronized particles in…

High Energy Physics - Phenomenology · Physics 2020-12-04 Johannes Bellm , Cody B. Duncan , Stefan Gieseke , Miroslav Myska , Andrzej Siodmok

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

In high-energy physics, Monte Carlo event generators (MCEGs) are used to simulate the interactions of high energy particles. MCEG event records store the information on the simulated particles and their relationships, and thus reflects the…

High Energy Physics - Phenomenology · Physics 2021-01-07 Andy Buckley , Philip Ilten , Dmitri Konstantinov , Leif Lönnblad , James Monk , Witold Pokorski , Tomasz Przedzinski , Andrii Verbytskyi

We present the latest developments of the MadGraph/MadEvent Monte Carlo event generator and several applications to hadron collider physics. In the current version events at the parton, hadron and detector level can be generated directly…

High Energy Physics - Phenomenology · Physics 2014-11-18 Johan Alwall , Pavel Demin , Simon de Visscher , Rikkert Frederix , Michel Herquet , Fabio Maltoni , Tilman Plehn , David L. Rainwater , Tim Stelzer

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

We use the POWHEG formalism in the Herwig++ event generator to match QCD real-emission matrix elements with the parton shower for a range of decays relevant to Beyond the Standard Model physics searches. Applying this correction affects the…

High Energy Physics - Phenomenology · Physics 2014-02-04 Peter Richardson , Alexandra Wilcock

We compare the three general-purpose Monte Carlo event generators, HERWIG, PYTHIA, and SHEPRA for jet photoproduction processes in $e^+e^-$ and $ep$ collisions. Due to the lower energy scales probed, photoproduction is particularly…

High Energy Physics - Phenomenology · Physics 2026-05-06 Ilkka Helenius , Peter Meinzinger , Simon Plätzer , Peter Richardson

This is a status report of the WHIZARD Monte Carlo multi-purpose event generator given at the LCFORUM 2012 at DESY. I review here the development of the WHIZARD generator version 2 with a special emphasis on linear collider physics. In case…

High Energy Physics - Phenomenology · Physics 2012-04-30 Juergen Reuter

We introduce the new version of SimProp, a Monte Carlo code for simulating the propagation of ultra-high energy cosmic rays in intergalactic space. This version, SimProp v2r3, allows the choice of many more models for the extragalactic…

High Energy Astrophysical Phenomena · Physics 2016-02-12 Roberto Aloisio , Denise Boncioli , Armando di Matteo , Aurelio Grillo , Sergio Petrera , Francesco Salamida

A newly upgraded version of the BCVEGPY, a generator for hadronic production of the meson $B_c$ and its excited states, is available. In comparison with the previous one [C.H. Chang, J.X. Wang and X.G. Wu, Comput. Phys. Commun. {\bf 175},…

High Energy Physics - Phenomenology · Physics 2015-09-28 Chao-Hsi Chang , Xian-You Wang , Xing-Gang Wu

Many extensions of the Standard Model predict the existence of charged Higgs bosons. In order to be able to find those particles, an accurate description of their production is needed. In Monte Carlo simulations of charged Higgs boson…

High Energy Physics - Phenomenology · Physics 2007-05-23 Johan Alwall

We review the modelling of multiple interactions in the event generator Herwig++ and study implications of recent tuning efforts to Tevatron and LHC data. It is often said that measurements of the effective cross section for double-parton…

High Energy Physics - Phenomenology · Physics 2015-06-16 Michael H. Seymour , Andrzej Siodmok

HIJING++ (Heavy Ion Jet INteraction Generator) is the successor of the widely used original HIJING, developed almost three decades ago. While the old versions (1.x and 2.x) were written in FORTRAN, HIJING++ was completely rewritten in C++.…