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200 papers

MadGraph 5 is the new version of the MadGraph matrix element generator, written in the Python programming language. It implements a number of new, efficient algorithms that provide improved performance and functionality in all aspects of…

High Energy Physics - Phenomenology · Physics 2015-05-28 Johan Alwall , Michel Herquet , Fabio Maltoni , Olivier Mattelaer , Tim Stelzer

This paper is a follow-up of Ref.~\cite{Ravasio:2018lzi}, where we studied the impact of next-to-leading order calculations merged with parton shower generators (NLO+PS) of increasing accuracy in the extraction of the top mass at hadron…

High Energy Physics - Phenomenology · Physics 2020-01-08 Silvia Ferrario Ravasio , Tomas Jezo , Paolo Nason , Carlo Oleari

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

An important area of high energy physics studies at the Large Hadron Collider (LHC) currently concerns the need for more extensive and precise comparison data. Important tools in this realm are event reweighing and evaluation of more…

Computational Physics · Physics 2023-12-13 Zenny Wettersten , Olivier Mattelaer , Stefan Roiser , Robert Schöfbeck , Andrea Valassi

We report here about activities of newly formed working group aiming to define a forward and diffractive physics program at the LHC for the years to come.

Accelerator Physics · Physics 2013-10-29 O. Kepka

The detailed study of vector-boson pair production processes at the LHC will lead to a better understanding of electroweak physics. As pointed out before, a consistent inclusion of higher-order electroweak effects in the analysis of…

High Energy Physics - Phenomenology · Physics 2014-01-17 Stefan Gieseke , Tobias Kasprzik , Johann H. Kühn

I review the array of event generators which have been written to provide simulations of high-energy e+e- reactions. (Session summary talk presented at the 1999 International Workshop on Linear Colliders, Sitges, Barcelona, Spain.)

High Energy Physics - Phenomenology · Physics 2007-05-23 Michael E. Peskin

The program HiggsSignals confronts the predictions of models with arbitrary Higgs sectors with the available Higgs signal rate and mass measurements, resulting in a likelihood estimate. A new version of the program, HiggsSignals-2, is…

High Energy Physics - Phenomenology · Physics 2021-02-24 Philip Bechtle , Sven Heinemeyer , Tobias Klingl , Tim Stefaniak , Georg Weiglein , Jonas Wittbrodt

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

In this paper, we propose a new task of sub-event generation for an unseen process to evaluate the understanding of the coherence of sub-event actions and objects. To solve the problem, we design SubeventWriter, a sub-event sequence…

Computation and Language · Computer Science 2022-10-20 Zhaowei Wang , Hongming Zhang , Tianqing Fang , Yangqiu Song , Ginny Y. Wong , Simon See

We study the differences in the gamma ray spectra simulated by four Monte Carlo event generator packages developed in particle physics. Two different versions of PYTHIA and two of HERWIG are analyzed, namely PYTHIA 6.418 and HERWIG 6.5.10…

High Energy Physics - Phenomenology · Physics 2013-10-02 J. A. R. Cembranos , A. de la Cruz-Dombriz , V. Gammaldi , R. A. Lineros , A. L. Maroto

CORSIKA 8 represents a significant update in the simulation of particle showers, building on the well-established foundation of CORSIKA 7. It has been entirely rewritten as a modular and modern C++ framework, addressing the limitations of…

High Energy Astrophysical Phenomena · Physics 2025-08-13 Marvin Gottowik

With Large Language Models (LLMs) recently demonstrating impressive proficiency in code generation, it is promising to extend their abilities to Hardware Description Language (HDL). However, LLMs tend to generate single HDL code blocks…

Machine Learning · Computer Science 2025-10-10 Jinwei Tang , Jiayin Qin , Kiran Thorat , Chen Zhu-Tian , Yu Cao , Yang , Zhao , Caiwen Ding

We propose changes to the colour reconnection model in the Monte Carlo event generator Herwig in order to remove the quasi diffractive events from the soft multiple parton interactions. We then implement explicitly soft diffraction and show…

High Energy Physics - Phenomenology · Physics 2016-02-16 Stefan Gieseke , Frasher Loshaj , Miroslav Myska

The Monte Carlo event generator EKHARA was upgraded during last years. The upgrades presented here contain: a) the inclusion of new final states $e^+e^-\to e^+e^-\eta $, $e^+e^-\to e^+e^-\eta'$, $e^+e^-\to e^+e^- \chi_{c_i} $ and $e^+e^-\to…

High Energy Physics - Phenomenology · Physics 2018-11-14 Henryk Czyz , Patrycja Kisza

LHC physics crucially relies on our ability to simulate events efficiently from first principles. Modern machine learning, specifically generative networks, will help us tackle simulation challenges for the coming LHC runs. Such networks…

High Energy Physics - Phenomenology · Physics 2020-08-20 Anja Butter , Tilman Plehn

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

HYDJET++ is a Monte-Carlo event generator for simulation of relativistic heavy ion AA collisions considered as a superposition of the soft, hydro-type state and the hard state resulting from multi-parton fragmentation. This model is the…

High Energy Physics - Phenomenology · Physics 2009-03-24 I. P. Lokhtin , L. V. Malinina , S. V. Petrushanko , A. M. Snigirev , I. Arsene , K. Tywoniuk

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 compare Monte Carlo event generators dedicated to simulating the production and decay of extra-dimensional black holes at the Large Hadron Collider.

High Energy Physics - Phenomenology · Physics 2007-05-23 Douglas M. Gingrich