Direct measurement of the muonic content of extensive air showers between 2x 1017 and 2x 1018 eV at the Pierre Auger Observatory

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73602180" target="_blank" >RIV/61989592:15310/20:73602180 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/20:10421869
Result on the web
<a href="https://link.springer.com/article/10.1140/epjc/s10052-020-8055-y" target="_blank" >https://link.springer.com/article/10.1140/epjc/s10052-020-8055-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1140/epjc/s10052-020-8055-y" target="_blank" >10.1140/epjc/s10052-020-8055-y</a>

Result language
angličtina
Original language name
Direct measurement of the muonic content of extensive air showers between 2x 1017 and 2x 1018 eV at the Pierre Auger Observatory
Original language description
The hybrid design of the Pierre Auger Observatory allows for the measurement of the properties of extensive air showers initiated by ultra-high energy cosmic rays with unprecedented precision. By using an array of prototype underground muon detectors, we have performed the first direct measurement, by the Auger Collaboration, of the muon content of air showers between 2x1017 and 2x1018 eV. We have studied the energy evolution of the attenuation-corrected muon density, and compared it to predictions from air shower simulations. The observed densities are found to be larger than those predicted by models. We quantify this discrepancy by combining the measurements from the muon detector with those from the Auger fluorescence detector at 1017.5 eV and 1018 eV. We find that, for the models to explain the data, an increase in the muon density of 38%+/- 4%(12%)+/- 18%21% for EPOS-LHC, and of 50%(53%)+/- 4%(13%)+/- 20%23% for QGSJetII-04, is respectively needed.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10303 - Particles and field physics

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)