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High Energy Physics - Phenomenology

arXiv:2108.03481 (hep-ph)
[Submitted on 7 Aug 2021]

Title:Hadron Interactions for Arbitrary Energies and Species, with Applications to Cosmic rays

Authors:Torbjörn Sjöstrand, Marius Utheim
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Abstract:The Pythia event generator is used in several contexts to study hadron and lepton interactions, notably $pp$ and $p\bar{p}$ collisions. In this article we extend the hadronic modelling to encompass the collision of a wide range of hadrons $h$ with either a proton or a neutron, or with a simplified model of nuclear matter. To this end we model $hp$ total and partial cross sections as a function of energy, and introduce new parton distribution functions for a wide range of hadrons, as required for a proper modelling of multiparton interactions. The potential usefulness of the framework is illustrated by a simple study of the evolution of cosmic rays in the atmosphere, and by an even simpler one of shower evolution in a solid detector material. The new code will be made available for future applications.
Comments: 45 pages, 15 figures
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Astrophysical Phenomena (astro-ph.HE)
Report number: LU TP 21-32, MCnet-21-14
Cite as: arXiv:2108.03481 [hep-ph]
  (or arXiv:2108.03481v1 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.2108.03481
Related DOI: https://doi.org/10.1140/epjc/s10052-021-09953-5

Submission history

From: Marius Utheim [view email]
[v1] Sat, 7 Aug 2021 16:25:12 UTC (450 KB)
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