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Since 2006, EPOS hadronic interaction model is being used for very high energy cosmic ray analysis. Designed for minimum bias particle physics and used for having a precise description of SPS and RHIC heavy ion collisions, EPOS brought more…

High Energy Astrophysical Phenomena · Physics 2010-11-17 T. Pierog , Iu. Karpenko , S. Porteboeuf , K. Werner

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…

High Energy Physics - Phenomenology · Physics 2022-01-26 Torbjörn Sjöstrand , Marius Utheim

We present a fast one dimensional hybrid method to efficiently simulate extensive air showers up to the highest observed energies. Based on precalculated pion showers and a bootstrap technique, our method predicts the average shower…

Astrophysics · Physics 2011-05-12 Jaime Alvarez-Muñiz , Ralph Engel , T. K. Gaisser , Jeferson A. Ortiz , Todor Stanev

Different interaction models treating hadronic collisions below E_lab < 100 GeV in air shower simulations are compared within the frame of the CORSIKA program. Their behaviour is studied in isolated collisions of protons or pions with…

Astrophysics · Physics 2015-06-24 D. Heck

Current and future neutrino oscillation experiments utilize information of hadronic final states to improve sensitivities on oscillation parameters measurements. Among the physics of hadronic systems in neutrino interactions, the…

High Energy Physics - Phenomenology · Physics 2016-12-21 Teppei Katori , Pierre Lasorak , Shivesh Mandalia , Ryan Terri

Interpretation of EAS measurements strongly depends on detailed air shower simulations. The uncertainty in the prediction of shower observables for different primary particles and energies is currently dominated by differences between…

Astrophysics · Physics 2008-02-12 T. Pierog , R. Engel , D. Heck , S. Ostapchenko , K. Werner

We evaluate the consistency of hadronic interaction models in the CORSIKA simulation package with publicly available fluorescence telescope data from the Pierre Auger Observatory. By comparing the first few central moments of the extended…

High Energy Astrophysical Phenomena · Physics 2024-11-18 Blaž Bortolato , Jernej F. Kamenik , Michele Tammaro

Using the large hadron calorimeter of the KASCADE experiment, hadronic cores of extensive air showers have been studied. The hadron lateral and energy distributions have been investigated in order to study the reliability of the shower…

Astrophysics · Physics 2009-10-31 T. Antoni , J. R. Hoerandel

Studies of the influence of different hadronic models on extensive air showers at ultra-high energies are presented. The hadronic models considered are those implemented in the well-known QGSJET and SIBYLL event generators. The different…

High Energy Physics - Phenomenology · Physics 2009-10-31 L. A. Anchordoqui , M. T. Dova , L. N. Epele , S. J. Sciutto

Several models of minimum-bias hadronic interactions at ultra-high energy that have been used for calculations of air showers share essential common features. In this talk I review these common elements and discuss some consequences. I…

High Energy Physics - Phenomenology · Physics 2011-05-12 T. K. Gaisser

Measurements of the muon content of extensive air showers at the highest energies show discrepancies compared to simulations as large as the differences between proton and iron. This so-called muon puzzle is commonly attributed to a lack of…

High Energy Astrophysical Phenomena · Physics 2022-09-21 Maximilian Reininghaus , Ralf Ulrich , Tanguy Pierog

Predictions of the hadronic interaction model EPOS~1.61 as implemented in the air shower simulation program CORSIKA are compared to observations with the KASCADE experiment. The investigations reveal that the predictions of EPOS are not…

High Energy Astrophysical Phenomena · Physics 2012-08-27 Grande Collaboration , W. D. Apel

Interpretation of extensive air showers (EAS) experiments results is strongly based on air shower simulations. The latter being based on hadronic interaction models, any new model can help for the understanding of the nature of cosmic rays.…

High Energy Physics - Phenomenology · Physics 2009-12-08 T. Pierog , K. Werner

The CORSIKA 8 project aims to develop a versatile and modern framework for particle shower simulations that meets the new needs of experiments and addresses the caveats of existing codes. Of particular relevance is the ability to compute…

Instrumentation and Methods for Astrophysics · Physics 2023-09-13 Juan Ammerman-Yebra , Uzair Abdul Latif , Nikolaos Karastathis , Tim Huege , Simon de Kockere

The CORSIKA program, usually used to simulate extensive cosmic ray air showers, has been adapted to work in a water or ice medium. The adapted CORSIKA code was used to simulate hadronic showers produced by neutrino interactions. The…

Astrophysics · Physics 2009-06-23 S. Bevan , S. Danaher , J. Perkin , S. Ralph , C. Rhodes , L. Thompson , T. Sloan , D. Waters

Modelling multiple partonic interactions in hadronic events is vital for understanding minimum-bias physics, as well as the underlying event of hard processes. A brief overview of the current Pythia 8 multiple interactions (MI) model is…

High Energy Physics - Phenomenology · Physics 2009-01-20 Richard Corke

Contemporary models of hadronic interactions are reviewed. Basic phenomenological approaches are compared, with an emphasizes on the predicted air shower characteristics. Special attention is payed to the remaining discrepancies between…

High Energy Physics - Phenomenology · Physics 2015-06-25 S. Ostapchenko

In the sub-TeV regime, the most widely used hadronic interaction models disagree significantly in their predictions of particle spectra from cosmic ray induced air showers. We investigate the nature and impact of model uncertainties,…

High Energy Astrophysical Phenomena · Physics 2022-12-12 M. Schmelling , Á. Pastor-Gutiérrez , H. Schorlemmer , R. D. Parsons

The particle showers produced in the atmosphere due to the interactions of primary cosmic particles require a thorough understanding in the backdrop of searches for rare interactions. In this work, we made a comprehensive study of air…

High Energy Physics - Phenomenology · Physics 2024-02-15 Hariom Sogarwal , Prashant Shukla

Data from multiple experiments suggest that the current interaction models used in Monte Carlo simulations do not correctly reproduce the hadronic interactions in air showers produced by ultra-high-energy cosmic rays (UHECR). We have…

High Energy Astrophysical Phenomena · Physics 2025-05-06 Jan Ebr , Jiří Blažek , Jakub Vícha , Tanguy Pierog , Eva Santos , Petr Trávníček , Nikolas Denner , Ralf Ulrich