Photoproduction in general-purpose event generators

[2406.08026] Photoproduction in general-purpose event generators Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search High Energy Physics - Phenomenology arXiv:2406.08026 (hep-ph) [Submitted on 12 Jun 2024 ( v1 ), last revised 9 Apr 2026 (this version, v3)] Title: Photoproduction in general-purpose event generators Authors: Ilkka Helenius , Peter Meinzinger , Simon Plätzer , Peter Richardson View a PDF of the paper titled Photoproduction in general-purpose event generators, by Ilkka Helenius and 3 other authors View PDF HTML (experimental) Abstract: 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 sensitive to non-perturbative corrections. In a systematic analysis we disentangle and quantify the differences between the generators in these processes, i.e. contributions from beam remnants, parton showers, multiparton interactions (MPIs), and hadronisation modelling. We outline the default inputs and implementation differences and compare the computations with experimental data from LEP and HERA. We find that all generators provide a decent description of the data within the uncertainties, with particularly good descriptions by the LO-accurate PYTHIA and the NLO-accurate SHERPA. Finally, we also present predictions for the upcoming EIC for jet observables and event shapes and conclude that a modern global refit of the photon parton distributions and dedicated experimental measurements ported to the RIVET framework to constrain non-perturbative parameters are the key prerequisites for precision photoproduction phenomenology at the EIC. Comments: 21 pages, 15 figures; accepted version Subjects: High Energy Physics - Phenomenology (hep-ph) Report number: IPPP/24/30 Cite as: arXiv:2406.08026 [hep-ph] (or arXiv:2406.08026v3 [hep-ph] for this version) https://doi.org/10.48550/arXiv.2406.08026 Focus to learn more arXiv-issued DOI via DataCite Journal reference: SciPost Phys. Comm. Rep. 23 (2026) Related DOI : https://doi.org/10.21468/SciPostPhysCommRep.23 Focus to learn more DOI(s) linking to related resources Submission history From: Peter Meinzinger [ view email ] [v1] Wed, 12 Jun 2024 09:24:53 UTC (818 KB) [v2] Mon, 1 Jul 2024 09:32:43 UTC (851 KB) [v3] Thu, 9 Apr 2026 20:46:45 UTC (1,076 KB) Full-text links: Access Paper: View a PDF of the paper titled Photoproduction in general-purpose event generators, by Ilkka Helenius and 3 other authors View PDF HTML (experimental) TeX Source view license Current browse context: hep-ph < prev | next > new | recent | 2024-06 References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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