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From collider to cosmic rays: Pythia 8/Angantyr for air shower simulations in CORSIKA 8

Chloé GauduBergische Universität Wuppertal , Department of Physics , Wuppertal , GermanyJean-Marco AlameddineTechnische Universität Dortmund ( TU) , Department of Physics , Dortmund , GermanyJ. AlbrechtTechnische Universität Dortmund ( TU) , Department of Physics , Dortmund , GermanyA. A. AlvesKarlsruhe Institute of Technology (KIT) , Institute for Astroparticle Physics (IAP) , Karlsruhe , GermanyJuan Ammerman YebraIMAPP , Radboud University Nĳmegen , Nĳmegen , The NetherlandsLuisa ArrabitoLaboratoire Univers et Particules de MontpellierDominik BaackLamarr Institute for Machine Learning and Artificial Intelligence , Dortmund , GermanyRui CesistaLaboratoire Univers & Particules de Montpellier , CNRS & Université de Montpellier ( UMR- 5299) , 34095 Montpellier , FranceAlan ColemanUppsala University , Department of Physics and Astronomy , Uppsala , SwedenCosmin DeaconuDepartment of Physics , Enrico Fermi Institute , Kavli Institute for Cosmological Physics ,H.-P. DembinskiLamarr Institute for Machine Learning and Artificial Intelligence , Dortmund , GermanyDominik ElsässerTechnische Universität Dortmund ( TU) , Department of Physics , Dortmund , GermanyRalph EngelKarlsruhe Institute of Technology (KIT) , Institute for Astroparticle Physics (IAP) , Karlsruhe , GermanyAlice FaureLaboratoire Univers et Particules de MontpellierAlfredo FerrariKarlsruhe Institute of Technology (KIT) , Institute for Astroparticle Physics (IAP) , Karlsruhe , GermanyChristian GläserTechnische Universität Dortmund ( TU) , Department of Physics , Dortmund , GermanyMarvin GottowikKarlsruhe Institute of Technology (KIT) , Institute for Astroparticle Physics (IAP) , Karlsruhe , GermanyDieter HeckKarlsruhe Institute of Technology (KIT) , Institute for Astroparticle Physics (IAP) , Karlsruhe , GermanyT. HuegeVrĳe Universiteit Brussel , Astrophysical Institute , Brussels , BelgiumK.‐H. KampertBergische Universität Wuppertal , Department of Physics , Wuppertal , GermanyN. KarastathisKarlsruhe Institute of Technology (KIT) , Institute for Astroparticle Physics (IAP) , Karlsruhe , GermanyL. NellenUniversidad Nacional Autónoma de México (UNAM) , Instituto de Ciencias Nucleares , Méx- ico , MéxicoDavid ParelloLaboratoire d'Informatique, de Robotique et de Microélectronique de MontpellierT. PierogKarlsruhe Institute of Technology (KIT) , Institute for Astroparticle Physics (IAP) , Karlsruhe , GermanyRemy PrecheltUniversity of Hawai'i at Manoa , Department of Physics and Astronomy , Honolulu , USAMaximilian ReininghausW. RhodeTechnische Universität Dortmund ( TU) , Department of Physics , Dortmund , GermanyFelix RiehnTechnische Universität Dortmund ( TU) , Department of Physics , Dortmund , GermanyMaximilian SackelTechnische Universität Dortmund ( TU) , Department of Physics , Dortmund , GermanyPranav SampathkumarKarlsruhe Institute of Technology (KIT) , Institute for Astroparticle Physics (IAP) , Karlsruhe , GermanyAlexander SandrockBergische Universität Wuppertal , Department of Physics , Wuppertal , GermanyJan SoedingreksoLamarr Institute for Machine Learning and Artificial Intelligence , Dortmund , GermanyR. UlrichKarlsruhe Institute of Technology (KIT) , Institute for Astroparticle Physics (IAP) , Karlsruhe , GermanyP. J. WindischhoferDepartment of Physics , Enrico Fermi Institute , Kavli Institute for Cosmological Physics ,Bin YueBergische Universität Wuppertal , Department of Physics , Wuppertal , Germany

2025en

ABI

Abstract

The simulation of extensive air showers is pivotal for advancing our understanding of high-energy cosmic ray interactions in Earth's atmosphere. The CORSIKA 8 framework is being developed as a modern, flexible, and efficient tool for simulating these interactions with a variety of high-energy hadronic models. We present the ongoing implementation and validation of Pythia 8/Angantyr within CORSIKA 8. Pythia 8, successfully used in collider physics, provides a detailed and well-tested treatment of hadronic interactions, while the Angantyr model extends its capabilities to describe heavy-ion collisions in a consistent manner. With the inclusion of Pythia 8, the CORSIKA 8 suite now enables further tuning possibilities, improving the exploration of hadronic interactions in air showers. In this contribution, we compare the capability of Pythia 8/Angantyr to reproduce fundamental observables of high-energy particle collisions -- inelastic cross-sections and multiplicities -- to that of several established high-energy interaction models in air shower simulations. We further compare the predictions for key air shower properties, including longitudinal shower development and muon content, for iron-induced shower.

Identifiers

DOI: 10.22323/1.501.0267

Citations and references

Cited by 00 references