Overview of hadronic interaction studies at the Pierre Auger Observatory
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00635931" target="_blank" >RIV/68378271:_____/25:00635931 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15310/25:73633592
Result on the web
<a href="https://pos.sissa.it/484/034/pdf" target="_blank" >https://pos.sissa.it/484/034/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.484.0034" target="_blank" >10.22323/1.484.0034</a>
Alternative languages
Result language
angličtina
Original language name
Overview of hadronic interaction studies at the Pierre Auger Observatory
Original language description
The combination of fluorescence and surface detectors at the Pierre Auger Observatory offers unprecedented precision in testing models of hadronic interactions at center-of-mass energies around 70 TeV and beyond. However, for some time, discrepancies between model predictions and measured air-shower data have complicated efforts to accurately determine the mass composition of ultra-high-energy cosmic rays. A key inconsistency is the deficit of simulated signals compared to those measured with the surface detectors, typically interpreted as a deficit in the muon signal generated by the hadronic component of simulated showers. Recently, a new global method has been applied to the combined data from the surface and fluorescence detectors at the Pierre Auger Observatory. This method simultaneously determines the mass composition of cosmic rays and evaluates variations in the simulated depth of the shower maximum and hadronic signals on the ground. The findings reveal not only the alleviated muon problem but also show that all current models of hadronic interactions predict depths of the shower maximum that are too shallow, offering new insights into deficiencies in these models from a broader perspective.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of Science
ISBN
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ISSN
1824-8039
e-ISSN
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Number of pages
7
Pages from-to
034
Publisher name
Sissa Medilab srl
Place of publication
Trieste
Event location
Malargüe
Event date
Nov 17, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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