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1.
Measurement of the muon content in air showers at the Pierre Auger Observatory
Marko Zavrtanik, Danilo Zavrtanik, Lili Yang, Serguei Vorobiov, Darko Veberič, Marta Trini, Samo Stanič, Ahmed Saleh, Gašper Kukec Mezek, Andrej Filipčič, Laura Collica, 2015, published scientific conference contribution

Abstract: The muon content of extensive air showers is an observable sensitive to the primary composition and to the hadronic interaction properties. We present here different methods which allow us to estimate the muon number at the ground level and the muon production depth by exploiting the measurement of the longitudinal, lateral and temporal distribution of particles in air showers recorded at the Pierre Auger Observatory. The results, obtained at about 10[sup]19 eV (E[inf]CM ∼ 140 TeV center-of-mass energy for proton primaries), are compared to the predictions of LHC-tuned hadronic interaction models with different primary masses and suggest a deficit in the muon content at the ground predicted by simulations. The Pierre Auger Observatory uses water-Cherenkov detectors to measure particle densities at the ground and therefore has a good sensitivity to the muon content of air showers. Moreover, due to its hybrid design, the combination of muon measurements with other independent mass composition analyses such as Xmax provides additional constraints on hadronic interaction models.
Found in: ključnih besedah
Summary of found: ...composition and to the hadronic interaction properties. We ...
Keywords: Pierre Auger Observatory, ultra-high energy cosmic rays, muons, mass composition, hadronic interactions
Published: 03.03.2016; Views: 1511; Downloads: 121
.pdf Fulltext (298,46 KB)

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Particle physics at the Pierre Auger Observatory
Marko Zavrtanik, Danilo Zavrtanik, Serguei Vorobiov, Darko Veberič, Samo Stanič, Ahmed Saleh, Andrej Filipčič, Jan Ebr, 2014, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory, extensive air showers, hadronic interactions, proton-air cross section...
Keywords: Pierre Auger Observatory, extensive air showers, hadronic interactions, proton-air cross section
Published: 20.06.2017; Views: 1339; Downloads: 91
.pdf Fulltext (1,02 MB)

4.
Particle Physics with the Pierre Auger Observatory
Marko Zavrtanik, Danilo Zavrtanik, Darko Veberič, Samo Stanič, Andrej Filipčič, Tanguy Pierog, 2014, published scientific conference contribution

Found in: ključnih besedah
Summary of found: ...Pierre Auger Observatory, extensive air showers, hadronic interactions, proton-air inelastic cross-section...
Keywords: Pierre Auger Observatory, extensive air showers, hadronic interactions, proton-air inelastic cross-section
Published: 27.06.2017; Views: 1265; Downloads: 0
.pdf Fulltext (4,90 MB)

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