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The structure of events in high-energy collisions is complex and not predictable from first principles. Event generators allow the problem to be subdivided into more manageable pieces, some of which can be described from first principles,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Torbjörn Sjöstrand

Parallel hardware makes concurrency mandatory for efficient program execution. However, writing concurrent software is both challenging and error-prone. C++11 provides standard facilities for multiprogramming, such as atomic operations with…

Programming Languages · Computer Science 2013-01-07 Dominik Charousset , Thomas C. Schmidt

Simulating large molecular systems over long timescales requires force fields that are both accurate and efficient. In recent years, E(3) equivariant neural networks have lifted the tension between computational efficiency and accuracy of…

Chemical Physics · Physics 2025-05-22 Leif Seute , Eric Hartmann , Jan Stühmer , Frauke Gräter

The Large Hadron Collider at CERN produces immense volumes of complex data from high-energy particle collisions, demanding sophisticated analytical techniques for effective interpretation. Neural Networks, including Graph Neural Networks,…

Using detailed simulations of calorimeter showers as training data, we investigate the use of deep learning algorithms for the simulation and reconstruction of particles produced in high-energy physics collisions. We train neural networks…

The cross section for producing a heavy reaction product, $\sigma$$_{EVR}$, can be represented by the equation \sigma_{EVR} = \sum_{J=0}^{J_\max} \sigma_{capture} (E_{c.m.},J) P_{CN} (E^*,J) W_{sur}(E^*,J), where…

Nuclear Experiment · Physics 2015-06-05 W. Loveland

Robust and flexible event representations are important to many core areas in language understanding. Scripts were proposed early on as a way of representing sequences of events for such understanding, and has recently attracted renewed…

Computation and Language · Computer Science 2017-11-22 Noah Weber , Niranjan Balasubramanian , Nathanael Chambers

This work develops a new open source API and software package called \textit{SymPhas} for simulations of phase-field, phase-field crystal and reaction-diffusion models, supporting up to three dimensions and an arbitrary number of fields.…

Computational Physics · Physics 2021-09-07 Steven A. Silber , Mikko Karttunen

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

This paper introduces ChemGen, a software package that uses code generation to integrate multispecies thermodynamics and chemical kinetics into C+-based computational physics codes. ChemGen aims to make chemical kinetics more accessible in…

Computational Physics · Physics 2025-12-11 Ryan F. Johnson , Eric J. Ching , Ethan S. Genter , Joshua E. Lipman , Andrew D. Kercher , Jay Arcities , Hai Wang

Detailed Computational Fluid Dynamics (CFD) simulations are too computationally expensive for the real-time control and design optimization of multiphase flow reactors. To address these limitations, we introduce CLARA, a software toolbox…

Frameworks for the agile development of modern system-on-chips are crucial to dealing with the complexity of designing such architectures. The open-source Vespa framework for designing large, FPGA-based, multi-core heterogeneous…

Hardware Architecture · Computer Science 2025-01-07 Gabriele Montanaro , Andrea Galimberti , Davide Zoni

Predictive simulations and experimental design involving extreme aero-chemo-thermo-mechanical regimes require high-fidelity material representation across diverse physical states. However, data for metals, polymers, and propellants,…

In this work, we introduce DeepFlame, an open-source C++ platform with the capabilities of utilising machine learning algorithms and pre-trained models to solve for reactive flows. We combine the individual strengths of the computational…

Fluid Dynamics · Physics 2023-07-17 Runze Mao , Minqi Lin , Yan Zhang , Tianhan Zhang , Zhi-Qin John Xu , Zhi X. Chen

First calculated results with the new HIJING++ are presented for identified hadron production in high-energy heavy ion collisions. The recently developed HIJING++ version is based on the latest version of PYTHIA8 and contains all the…

When a photon collides with a laser pulse, an electron-positron pair can be produced via the nonlinear Breit-Wheeler process. A simulation framework has been developed to calculate this process, which is based on a ponderomotive approach…

High Energy Physics - Phenomenology · Physics 2022-01-19 T. G. Blackburn , B. King

Address event representation (AER) cameras have recently attracted more attention due to the advantages of high temporal resolution and low power consumption, compared with traditional frame-based cameras. Since AER cameras record the…

Neural and Evolutionary Computing · Computer Science 2020-02-18 Qianhui Liu , Haibo Ruan , Dong Xing , Huajin Tang , Gang Pan

High Energy Physics processes, such as hard scattering, parton shower, and hadronization, occur at colliders around the world, e.g., the Large Hadron Collider in Europe. The various steps are also components within corresponding Monte-Carlo…

High Energy Physics - Phenomenology · Physics 2022-07-29 Leyun Gao , Jing Peng , Zilin Dai , Sitian Qian , Tao Li , Qiang Li , Meng Lu

The space-time picture of hadron formation in high-energy collisions with nuclear targets is still poorly known. The tests of hadron formation was suggested for the first stage of SPD running. They will require measuring charged pion and…

Instrumentation and Detectors · Physics 2024-08-22 R. Pandey

PROMELA (Process Meta Language) is a high-level specification language designed for modeling interactions in distributed systems. PROMELA is used as the input language for the model checker SPIN (Simple Promela INterpreter). The main…

Programming Languages · Computer Science 2021-08-30 Marco Comini , María del Mar Gallardo , Alicia Villanueva