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The Monte Carlo for lepton pair production and tau decays consist of KKMC for lepton pair production, tauola for tau lepton decays and photos for radiative corrections in decays. An effort for adaptation of the system for precision data to…

High Energy Physics - Phenomenology · Physics 2025-07-16 Sw. Banerjee , D. Biswas , T. Przedzinski , Z. Was

We present the version 2.0 of the program GoSam, which is a public program package to compute one-loop corrections to multi-particle processes. The extended version of the "Binoth-Les-Houches-Accord" interface to Monte Carlo programs is…

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

Gaussian stochastic process emulation is a powerful tool for approximating computationally intensive computer models. However, estimation of parameters in the GaSP emulator is a challenging task. No closed-form estimator is available, and…

Computation · Statistics 2026-05-06 Mengyang Gu , Jesús Palomo , James O. Berger

We present and discuss the generator setup for e+e- -> 4f processes chosen by the DELPHI collaboration. The need to combine the most recent theoretical achievements in the CC03 sector with the state of the art description of the remaining…

High Energy Physics - Phenomenology · Physics 2009-11-07 A. Ballestrero , R. Chierici , F. Cossutti , E. Migliore

ZE3RA is the software package responsible for processing the raw data from the ZEPLIN-III dark matter experiment and its reduction into a set of parameters used in all subsequent analyses. The detector is a liquid xenon time projection…

The program BABAYAGA is an event generator for QED processes at flavour factories, mainly intended for luminosity measurement of e+ e- colliders in the center of mass range 1-10 GeV. Recently, the pi+ pi- channel has been added as well. The…

High Energy Physics - Phenomenology · Physics 2009-11-10 C. M. Carloni Calame , G. Montagna , O. Nicrosini , F. Piccinini

The JETSCAPE collaboration announced the first public release of its framework and Monte Carlo event generator at this conference, providing a unified interface and a comprehensive suite of model implementations for all stages of…

High Energy Physics - Phenomenology · Physics 2019-02-20 Kolja Kauder

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

We illustrate one-loop weak corrections to three-jet production in $e^+e^-$ at $\sqrt{s}=M_Z$, to the production of a $Z$ or $\gamma$ in association with a hard jet at hadron colliders and to the production cross section of two $b$-jets at…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Maina , S. Moretti , M. R. Nolten , D. A. Ross

In models with an enhanced coupling of the Higgs boson to the bottom quark, the dominant production mechanism in hadronic collisions is often the partonic sub-process, bg ->bH. We derive the weak corrections to this process and show that…

High Energy Physics - Phenomenology · Physics 2015-03-13 S. Dawson , P. Jaiswal

We introduce the `nhppp' package for simulating events from one-dimensional non-homogeneous Poisson point processes (NHPPPs) in R fast and with a small memory footprint. We developed it to facilitate the sampling of event times in discrete…

Computation · Statistics 2024-05-30 Thomas A. Trikalinos , Yuliia Sereda

In this contribution the new event generation framework Sherpa will be presented. It aims at the full simulation of events at current and future high-energy experiments, in particular the LHC. Some results related to the production of jets…

High Energy Physics - Phenomenology · Physics 2008-12-18 T. Gleisberg , S. Hoeche , F. Krauss , A. Schaelicke , S. Schumann , J. Winter

A new event generator is proposed for two processes e+e- -> nu nu-bar gamma and e+e- -> nu nu-bar gamma gamma where nu includes all the neutrino species. The exact matrix elements of single- and double-photon emission, generated by the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Y. Kurihara , J. Fujimoto , T. Ishikawa , Y. Shimizu , T. Munehisa

We present a major update of the publicly available EERAD3 package to calculate perturbative corrections in the strong coupling in hadronic Higgs and $Z$-boson decays. We describe the theoretical framework underlying the numerical…

High Energy Physics - Phenomenology · Physics 2025-10-22 Benjamin Campillo Aveleira , Aude Gehrmann-De Ridder , Thomas Gehrmann , Nigel Glover , Gudrun Heinrich , Christian T. Preuss

Gaussian Probability Path based Generative Models (GPPGMs) generate data by reversing a stochastic process that progressively corrupts samples with Gaussian noise. Despite state-of-the-art results in 3D molecular generation, their…

Machine Learning · Computer Science 2026-02-23 Jingxiang Qu , Wenhan Gao , Ruichen Xu , Yi Liu

The cosmic ray interaction event generator Sibyll is widely used in extensive air shower simulations. We describe in detail the properties of Sibyll 2.1 and the differences with the original version 1.7. The major structural improvements…

High Energy Physics - Phenomenology · Physics 2009-11-30 Eun-Joo Ahn , Ralph Engel , Thomas K. Gaisser , Paolo Lipari , Todor Stanev

We describe version 2.0 of the Fortran program GENTLE/4fan for the semi-analytic computation of cross-sections and distributions in four-fermion production in e+e- annihilation. GENTLE/4fan covers all charged current and neutral current…

High Energy Physics - Phenomenology · Physics 2009-10-30 D. Bardin , J. Biebel , D. Lehner , A. Leike , A. Olchevski , T. Riemann

We present SymPhas 2.0, a major update of the compile-time symbolic algebra simulation framework SymPhas for phase-field and reaction-diffusion models. This release introduces significant expansions and enhancements that enable the…

Computational Physics · Physics 2025-11-14 Steven A. Silber , Mikko Karttunen

We analyse how the reaction gamma p -> gamma + jet + X can serve to constrain the gluon distributions. Our results are based on a code of partonic event generator type which includes full NLO corrections. We conclude that there are phase…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. Fontannaz , G. Heinrich