https://doi.org/10.1051/epjconf/202328305010
Pythia 8 as hadronic interaction model in air shower simulations
1 Karlsruher Institut für Technologie (KIT), Postfach 3640, 76021 Karlsruhe, Germany
2 Department of Physics, Lund University, Sölvegatan 14A, S-223 62 Lund, Sweden
3 University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
* full author list available at https://s.kit.edu/c8-authorlist-uhecr2022
** Corresponding author: reininghaus@kit.edu
Published online: 28 April 2023
Hadronic interaction models are a core ingredient of simulations of extensive air showers and pose the major source of uncertainties of predictions of air shower observables. Recently, Pythia 8, a hadronic interaction model popular in accelerator-based high-energy physics, became usable in air shower simulations as well. We have integrated Pythia 8 with its new capabilities into the air shower simulation framework CORSIKA 8. First results show significantly shallower shower development, which we attribute to higher cross-section predictions by the new simplified nuclear model of Pythia.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
