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Related papers: TopReX generator (version~3.25). Short manual

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We present a combined analysis of the Pythia 8 event generator using accelerator data and evaluate its impact on air shower observables. Reliable simulations with event generators are essential for particle physics analyses, achievable…

High Energy Astrophysical Phenomena · Physics 2025-09-19 Michael Windau , Chloé Gaudu , Karl-Heinz Kampert , Kevin Kröninger

Recent developments of the two MC-generators SPHINX and PEPSI are discussed. In SPHINX the process of polarized photo production was included to simulate the potential of a polarized HERA to measure the photon structure function. In PEPSI…

High Energy Physics - Phenomenology · Physics 2007-05-23 O. Martin , M. Maul , A. Schafer

We present a new version of the CompHEP program (version 4.4). We describe shortly new issues implemented in this version, namely, simplification of quark flavor combinatorics for the evaluation of hadronic processes, Les Houches Accord…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Boos , V. Bunichev , M. Dubinin , L. Dudko , V. Ilyin , A. Kryukov , V. Edneral , V. Savrin , A. Semenov , A. Sherstnev

The production of heavy quarks (charm and beauty) in high-energy hadronic and nuclear collisions provides an excellent testing ground for the theory of strong interactions and validates models based on quantum chromodynamics (QCD). In this…

High Energy Physics - Phenomenology · Physics 2026-03-25 Aswathy Menon Kavumpadikkal Radhakrishnan , Suraj Prasad , Neelkamal Mallick , Raghunath Sahoo

A simple C++ class structure for construction of a Monte Carlo event generators which can produce unweighted events within relativistic phase space is presented. The generator is self-adapting to the provided matrix element and acceptance…

High Energy Physics - Phenomenology · Physics 2018-12-18 R. A. Kycia , J. Chwastowski , R. Staszewski , J. Turnau

\susy23 is a Monte-Carlo package for generating supersymmetric (SUSY) processes at $e^+e^-$ colliders. Twenty-three types of SUSY processes with 2 or 3 final state particles at tree level are included in version 2.0. {\susy23} addresses…

High Energy Physics - Phenomenology · Physics 2016-09-06 J. Fujimoto , K. Hikasa , T. Ishikawa , M. Jimbo , T. Kaneko , K. Kato , S. Kawabata , T. Kon , M. Kuroda , Y. Kurihara , T. Munehisa , D. Perret-Gallix , Y. Shimizu , H. Tanaka

Sherpa is a general-purpose Monte Carlo event generator for the simulation of particle collisions in high-energy collider experiments. We summarize essential features and improvements of the Sherpa 2.2 release series, which is heavily used…

In this talk we summarize the top physics setup in the event generator WHIZARD with a main focus on lepton colliders. This includes full six-, eight- and ten-fermion processes, factorized processes and spin correlations. For lepton…

High Energy Physics - Phenomenology · Physics 2016-03-03 J. Reuter , F. Bach , B. Chokoufe , A. Hoang , W. Kilian , M. Stahlhofen , T. Teubner , C. Weiss

Scientific foundation models hold great promise for advancing nuclear and particle physics by improving analysis precision and accelerating discovery. Yet, progress in this field is often limited by the lack of openly available large scale…

Data Analysis, Statistics and Probability · Physics 2025-09-09 Shuhang Li , Yi Huang , David Park , Xihaier Luo , Haiwang Yu , Yeonju Go , Christopher Pinkenburg , Yuewei Lin , Shinjae Yoo , Joseph Osborn , Christof Roland , Jin Huang , Yihui Ren

ExDiff2.0 is a Monte Carlo event generator for simulation of Exclusive Diffractive processes in proton-proton collisions. The present version includes reactions: elastic scattering $pp\to pp$ at 7, 8, 13, 14~TeV; $pp\to p+R+p$, $R =…

High Energy Physics - Phenomenology · Physics 2018-05-23 R. A. Ryutin

In this article, a framework for hadronic rescattering in the general-purpose Pythia event generator is introduced. The starting point is the recently presented space-time picture of the hadronization process. It is now extended with a…

High Energy Physics - Phenomenology · Physics 2020-10-28 Torbjörn Sjöstrand , Marius Utheim

The charged particle multiplicity distribution in high energy hadronic and nuclear collisions receive contribution from both diffractive and non diffractive processes. It is experimentally challenging to segregate diffractive events from…

High Energy Physics - Phenomenology · Physics 2022-06-08 Sadhana Dash , Nirbhay Behera , Basanta Nandi

In the context of topcolor assisted technicolor(TC2) models, we study the production of the top-pions $\pi_{t}^{0,\pm}$ with single top quark via the processes $p\bar{p} \to t\pi_{t}^{0}+X$ and $p\bar{p} \to t\pi_{t}^{\pm}+X$, and discuss…

High Energy Physics - Phenomenology · Physics 2008-11-26 Chong-Xing Yue , Zheng-Jun Zong , Li-Li Xu , Jian-Xing Chen

In this work we present the production of charged particles associated with high-$p_{\rm T}$ trigger particles ($8<p_{\rm T}^{\rm trig.}<15$ GeV /$c$) at mid-pseudorapidity in proton-proton collisions at $\sqrt{s}=5.02$\,TeV simulated with…

High Energy Physics - Phenomenology · Physics 2021-10-08 Gyula Bencédi , Antonio Ortiz , Antonio Paz

Event generators play a crucial role in the exploration of LHC physics. This presentation summarizes news and plans for the three general-purpose pp generators HERWIG, PYTHIA and SHERPA, as well as briefer notes on a few other generators.…

High Energy Physics - Phenomenology · Physics 2016-08-24 Torbjörn Sjöstrand

At the LHC era, the detector systems are operating at the harsh hadronic environment with the unprecedentedly high particle flux. Position sensitive silicon devices are usually positioned at the innermost regions of the experimental setups…

High Energy Physics - Experiment · Physics 2020-02-17 Agnieszka Oblakowska-Mucha , Tomasz Szumlak

The event generator Sibyll can be used for the simulation of hadronic multiparticle production up to the highest cosmic ray energies. It is optimized for providing an economic description of those aspects of the expected hadronic final…

High Energy Physics - Phenomenology · Physics 2015-10-05 Felix Riehn , Ralph Engel , Anatoli Fedynitch , Thomas K. Gaisser , Todor Stanev

We present an updated set of parameters for the PYTHIA 8 event generator. We reevaluate the constraints imposed by LEP and SLD on hadronization, in particular with regard to heavy-quark fragmentation and strangeness production. For hadron…

High Energy Physics - Phenomenology · Physics 2015-06-19 Peter Skands , Stefano Carrazza , Juan Rojo

The AcerMC Monte Carlo generator is dedicated to the generation of Standard Model background processes which were recognised as critical for the searches at LHC, and generation of which was either unavailable or not straightforward so far.…

High Energy Physics - Phenomenology · Physics 2012-11-15 Borut Paul Kersevan , Elzbieta Richter-Was

We have reexamined the tW+X single top-quark production process which is important at the LHC contrary to the Tevatron. The special attention was paid to the treatment of the 2->2[Wt] process and the part of it's next-to-leading correction:…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Belyaev , E. Boos