20.500.12556/RUNG-2140
Measurement of the muon content in air showers at the Pierre Auger Observatory
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.
Pierre Auger Observatory
ultra-high energy cosmic rays
muons
mass composition
hadronic interactions
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Angleški jezik
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2016-03-02 14:45:38
2016-03-03 09:12:28
2023-06-09 03:15:45
0000-00-00 00:00:00
2015
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4152315
URN:SI:UNG:REP:YTLATK6H
ICRC2015_336.pdf
ICRC2015_336.pdf
1
9AFFCF4AC5ACE90A8DC4DA7EF6692E71
eea63f4a4f773f4aa57bbeb27a0f02edd6937249c769785834c0b9a228feaa81
de1716bf-05cd-11ee-9c48-5ef991fed68f
https://repozitorij.ung.si/Dokument.php?lang=slv&id=3475
Univerza v Novi Gorici
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