Sub-TeV hadronic interaction model differences and their impact on air showers
In the sub-TeV regime, the most widely used hadronic interaction models disagree significant lying their predictions for post-first interaction and ground-level particle spectra from cosmic ray induced air showers. These differences generate an important source of systematic uncertainty in their exp...
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| description | In the sub-TeV regime, the most widely used hadronic interaction models disagree significant lying their predictions for post-first interaction and ground-level particle spectra from cosmic ray induced air showers. These differences generate an important source of systematic uncertainty in their experimental use. We investigate the nature and impact of model uncertainties through a simultaneous analysis of ground level particles and first interaction scenarios. We focus on air shower primaries with energies close to the transition between high and low energy hadronic interaction models, where the dissimilarities have been shown to be the largest and well within the range of accelerator measurements. Interaction models are shown to diverge as several shower scenarios are compared, reflecting intrinsic differences in the model theoretical frameworks. Finally, we discuss the importance of interactions in the energy regime where the switching between models occurs ( |
| doi_str_mv | 10.48550/arxiv.2104.11034 |
| format | Article |
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| subjects | Cosmic ray showers Cosmic rays Ground level Interaction models Physics - High Energy Astrophysical Phenomena Physics - High Energy Physics - Phenomenology Uncertainty |
| title | Sub-TeV hadronic interaction model differences and their impact on air showers |
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