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arXiv · 2303.02792

Pythia 8 as hadronic interaction model in air shower simulations

Maximilian Reininghaus·Torbjörn Sjöstrand·Marius Utheim
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Abstract

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.

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Maximilian Reininghaus, Torbjörn Sjöstrand, Marius Utheim. 2023-03-05. Pythia 8 as hadronic interaction model in air shower simulations. https://doi.org/10.1051/epjconf/202328305010

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