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Core-corona hadronization model and its impact on muon content of extensive air showers

Perlin, Matias

Abstract (englisch):

Cosmic rays were discovered at the beginning of the 20th century and their study has contributed extensively to science areas such as Astrophysics and Particle Physics. However, there are still big open questions. The sources and the acceleration mechanisms of ultra-high energy cosmic rays yet remain elusive.
To improve both descriptions, an accurate measurement of mass composition is required.
Furthermore, mass composition is closely related to the so-called \emph{muon puzzle}, which states that the current understanding of hadronic interactions is not enough to explain the results of several cosmic-ray experiments.
The main problem is that the muon content in extensive air shower simulations is significantly less than the one measured. Several exotic mechanisms have been proposed but improvements in measurements at colliders make them unlikely to be viable processes.
In hadron collisions the fraction of energy going into electromagnetic particles has a large impact on the number of muons produced in air shower cascades.
Therefore, any proposed model needs to find a way to transfer energy from the electromagnetic cascade to the hadronic one to increase the muon production.
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Volltext §
DOI: 10.5445/IR/1000143163
Veröffentlicht am 18.02.2022
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Publikationstyp Hochschulschrift
Publikationsdatum 18.02.2022
Sprache Englisch
Identifikator KITopen-ID: 1000143163
HGF-Programm 51.13.03 (POF IV, LK 01) Kosmische Strahlung Auger
Verlag Karlsruher Institut für Technologie (KIT)
Umfang x, 113 S.
Art der Arbeit Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Institut für Astroteilchenphysik (IAP)
Prüfungsdatum 19.02.2021
Referent/Betreuer Sanchez, F. A.
Blümer, J.
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