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Acceleration beyond lowest order event generation. An outlook on further parallelism within MadGraph5_aMC@NLO
/ Wettersten, Zenny (CERN ; Vienna, OAW) ; Mattelaer, Olivier (Louvain U., CP3) ; Roiser, Stefan (CERN) ; Schöfbeck, Robert (Vienna, OAW) ; Valassi, Andrea (CERN)
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 precise next-to-leading order (NLO) processes via Monte Carlo event generators, especially in the context of the upcoming High Luminosity LHC. [...]
arXiv:2312.07440.-
2024 - 8 p.
- Published in : EPJ Web Conf.: 295 (2024) , pp. 10001
Fulltext: 2312.07440 - PDF; document - PDF;
In : 26th International Conference on Computing in High Energy & Nuclear Physics, Norfolk, Virginia, Us, 8 - 12 May 2023, pp.10001
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Madgraph5_aMC@NLO on GPUs and vector CPUs Experience with the first alpha release
/ Hageboeck, Stephan (CERN) ; Childers, Taylor (Argonne (main)) ; Hopkins, Walter (Argonne (main)) ; Mattelaer, Olivier (Cathol. U. Louvain (main)) ; Nichols, Nathan (Argonne (main)) ; Roiser, Stefan (CERN) ; Teig, Jørgen (CERN) ; Valassi, Andrea (CERN) ; Vuosalo, Carl (U. Wisconsin, Madison (main)) ; Wettersten, Zenny (CERN)
Madgraph5_aMC@NLO is one of the most-frequently used Monte-Carlo event generators at the LHC, and an important consumer of compute resources. The software has been reengineered to maintain the overall look and feel of the user interface while speeding up event generation on CPUs and GPUs. [...]
arXiv:2312.02898.-
2024 - 8 p.
- Published in : EPJ Web Conf. 295 (2024) 11013
Fulltext: document - PDF; 2312.02898 - PDF;
In : 26th International Conference on Computing in High Energy & Nuclear Physics, Norfolk, Virginia, Us, 8 - 12 May 2023, pp.11013
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LHC EFT WG Note: SMEFT predictions, event reweighting, and simulation
/ Schoefbeck, Robert (Austrian Academy of Sciences (AT)) ; Belvedere, Alberto (Deutsches Elektronen-Synchrotron (DE)) ; Bhattacharya, Saptaparna (Wayne State University (US)) ; Chatterjee, Suman (Austrian Academy of Sciences (AT)) ; Calandri, Alessandro (ETH Zurich (CH)) ; Sanchez Cruz, Sergio (CERN) ; Dickinson, Jennet Elizabeth (Fermi National Accelerator Lab. (US)) ; Glessgen, Franz Jacob (ETH Zurich (CH)) ; Goldouzian, Reza (University of Notre Dame (US)) ; Grohsjean, Alexander (Hamburg University (DE)) et al.
This note gives an overview of the tools for predicting expectations in the Standard Model effective field theory (SMEFT) at the tree level and one loop available through event generators. Methods of event reweighting, the separate simulation of squared matrix elements, and the simulation of the full SMEFT process are compared in terms of statistical efficacy and potential biases..
arXiv:2406.14620; CERN-LHCEFTWG-2024-001; CERN-LPCC-2024-001; CERN-LPCC-2024-001.-
Geneva : CERN, 2024 - 42 p.
Fulltext: da0a86c213c0c72b823f69c0b79b403b - PDF; 2406.14620 - PDF; Updated draft: PDF; External link: Fermilab Library Server
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The Effective Vector Boson Approximation in high-energy muon collisions
/ Ruiz, Richard (Cracow, INP) ; Costantini, Antonio (Louvain U., CP3) ; Maltoni, Fabio (Louvain U., CP3 ; INFN, Bologna) ; Mattelaer, Olivier (Louvain U., CP3)
Due to the inclination for forward gauge radiation, lepton colliders beyond a few TeV are effectively electroweak (EW) boson colliders, suggesting the treatment of EW bosons as constituents of high-energy leptons. In the context of a muon collider, we revisit the validity of W and Z parton distribution functions (PDFs) at leading order in 2 → n process. [...]
arXiv:2111.02442; CP3-21-59; IFJPAN-IV-2021-17; MCNET-21-13; VBSCAN-PUB-07-21.-
2022
- Published in : JHEP 06 (2022) 114
Fulltext: PDF;
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Vector boson fusion at multi-TeV muon colliders
/ Costantini, Antonio (INFN, Bologna) ; De Lillo, Federico (Louvain U., CP3) ; Maltoni, Fabio (Louvain U., CP3 ; Bologna U. ; INFN, Bologna) ; Mantani, Luca (Louvain U., CP3 ; U. Heidelberg, ITP) ; Mattelaer, Olivier (Louvain U., CP3) ; Ruiz, Richard (Louvain U., CP3) ; Zhao, Xiaoran (Louvain U., CP3)
High-energy lepton colliders with a centre-of-mass energy in the multi-TeV range are currently considered among the most challenging and far-reaching future accelerator projects. Studies performed so far have mostly focused on the reach for new phenomena in lepton-antilepton annihilation channels. [...]
arXiv:2005.10289; CP3-20-20; MCNET-20-12; VBSCAN-PUB-03-20.-
2020 - 59 p.
- Published in : JHEP 2009 (2020) 080
Fulltext: Publication - PDF; 2005.10289 - PDF;
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.080
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Developments in Performance and Portability for MadGraph5_aMC@NLO
/ Valassi, Andrea (CERN) ; Childers, Taylor (Argonne (main)) ; Field, Laurence (CERN) ; Hageboeck, Stefan (CERN) ; Hopkins, Walter (Argonne (main)) ; Mattelaer, Olivier (Cathol. U. Louvain (main)) ; Nichols, Nathan (Argonne (main)) ; Roiser, Stefan (CERN) ; Smith, David (CERN)
Event generators simulate particle interactions using Monte Carlo techniques, providing the primary connection between experiment and theory in experimental high energy physics. These software packages, which are the first step in the simulation worflow of collider experiments, represent approximately 5 to 20% of the annual WLCG usage for the ATLAS and CMS experiments. [...]
arXiv:2210.11122.-
2022-10-20 - 6 p.
- Published in : PoS: ICHEP2022 (2022) , pp. 212
Fulltext: document - PDF; 2210.11122 - PDF;
In : 41st International Conference on High Energy Physics (ICHEP 2022), Bologna, Italy, 6 - 13 Jul 2022, pp.212
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Event Generators for High-Energy Physics Experiments
/ Campbell, J.M. (Fermilab) ; Diefenthaler, M. (Jefferson Lab) ; Hobbs, T.J. (Fermilab ; IIT, Chicago) ; Höche, Stefan (Fermilab) ; Isaacson, Joshua (Fermilab) ; Kling, Felix (DESY) ; Mrenna, Stephen (Fermilab) ; Reuter, J. (DESY) ; Alioli, S. (Milan Bicocca U. ; INFN, Milan Bicocca) ; Andersen, J.R. (Durham U., IPPP) et al.
We provide an overview of the status of Monte-Carlo event generators for high-energy particle physics. Guided by the experimental needs and requirements, we highlight areas of active development, and opportunities for future improvements. [...]
arXiv:2203.11110; CP3-22-12; DESY-22-042; FERMILAB-PUB-22-116-SCD-T; IPPP/21/51,
JLAB-PHY-22-3576; KA-TP-04-2022; LA-UR-22-22126; LU-TP-22-12; MCNET-22-04,
OUTP-22-03P; P3H-22-024; PITT-PACC 2207; UCI-TR-2022-02.-
2024-05-24 - 225 p.
- Published in : 10.21468/SciPostPhys.16.5.130
Fulltext: jt - PDF; 2203.11110 - PDF; Fulltext from Publisher: PDF; External links: JLab Document Server; Fermilab Library Server; eConf
In : 2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.
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Design and engineering of a simplified workflow execution for the MG5aMC event generator on GPUs and vector CPUs
/ Valassi, Andrea (CERN) ; Roiser, Stefan (CERN) ; Mattelaer, Olivier (Louvain U.) ; Hageboeck, Stephan (CERN)
Physics event generators are essential components of the data analysis software chain of high energy physics experiments, and important consumers of their CPU resources. Improving the software performance of these packages on modern hardware architectures, such as those deployed at HPC centers, is essential in view of the upcoming HL-LHC physics programme. [...]
arXiv:2106.12631.-
2021 - 17 p.
- Published in : EPJ Web Conf. 251 (2021) 03045
Fulltext: 2106.12631 - PDF; document - PDF;
In : 25th International Conference on Computing in High-Energy and Nuclear Physics (CHEP), Online, Online, 17 - 21 May 2021, pp.03045
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