Cosmic Ray Simulation with PYTHIA

Fuente: arXiv
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Main Authors: Lönnblad, Leif, Sjöstrand, Torbjörn
Format: Preprint
Published: 2025
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author Lönnblad, Leif
Sjöstrand, Torbjörn
author_facet Lönnblad, Leif
Sjöstrand, Torbjörn
contents We present recent developments in PYTHIA for the modelling of hadronic cascades in a medium. Several improvements have been made in the Angantyr model for collisions with nuclei, especially in the limit of low collision energies, allowing it to be used throughout the hadronic cascades. Also the simplified nuclear model in the PythiaCascade} module has been updated. We find that the two models give consistent results for cosmic ray air showers initiated by both high energy protons and nuclei.
format Preprint
id arxiv_https___arxiv_org_abs_2512_13326
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Cosmic Ray Simulation with PYTHIA
Lönnblad, Leif
Sjöstrand, Torbjörn
High Energy Physics - Phenomenology
We present recent developments in PYTHIA for the modelling of hadronic cascades in a medium. Several improvements have been made in the Angantyr model for collisions with nuclei, especially in the limit of low collision energies, allowing it to be used throughout the hadronic cascades. Also the simplified nuclear model in the PythiaCascade} module has been updated. We find that the two models give consistent results for cosmic ray air showers initiated by both high energy protons and nuclei.
title Cosmic Ray Simulation with PYTHIA
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2512.13326