| Title: | Measurement of the muon content in air showers at the Pierre Auger Observatory |
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| Authors: | Collica, Laura (Author)
Filipčič, Andrej (Author)
Kukec Mezek, Gašper (Author)
Saleh, Ahmed (Author)
Stanič, Samo (Author)
Trini, Marta (Author)
Veberič, Darko (Author)
Vorobiov, Serguei (Author)
Yang, Lili (Author)
Zavrtanik, Danilo (Author)
Zavrtanik, Marko (Author)
et al. |
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| Files: |  ICRC2015_336.pdf (298,46 KB)
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| Language: | English |
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| Work type: | Not categorized (r6) |
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| Tipology: | 1.08 - Published Scientific Conference Contribution |
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| Organization: | UNG - University of Nova Gorica |
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| 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. |
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| Keywords: | Pierre Auger Observatory, ultra-high energy cosmic rays, muons, mass composition, hadronic interactions |
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| Year of publishing: | 2015 |
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| COBISS_ID: | 4152315  |
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| URN: | URN:SI:UNG:REP:YTLATK6H |
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| License: | 
This work is available under this license: Creative Commons Attribution Non-Commercial Share Alike 4.0 International |
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| Views: | 3926 |
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| Downloads: | 212 |
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| Metadata: |     |
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| Categories: | Document is not linked to any category. |
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