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Title:Measurement of the muon content in air showers at the Pierre Auger Observatory
Authors:ID Collica, Laura (Author)
ID Filipčič, Andrej (Author)
ID Kukec Mezek, Gašper (Author)
ID Saleh, Ahmed (Author)
ID Stanič, Samo (Author)
ID Trini, Marta (Author)
ID Veberič, Darko (Author)
ID Vorobiov, Serguei (Author)
ID Yang, Lili (Author)
ID Zavrtanik, Danilo (Author)
ID Zavrtanik, Marko (Author), et al.
Files:.pdf ICRC2015_336.pdf (298,46 KB)
MD5: 9AFFCF4AC5ACE90A8DC4DA7EF6692E71
 
Language:English
Work type:Not categorized
Typology:1.08 - Published Scientific Conference Contribution
Organization:UNG - University of Nova Gorica
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.
Keywords:Pierre Auger Observatory, ultra-high energy cosmic rays, muons, mass composition, hadronic interactions
Publication status:Published
Year of publishing:2015
PID:20.500.12556/RUNG-2140 New window
COBISS.SI-ID:4152315 New window
NUK URN:URN:SI:UNG:REP:YTLATK6H
Publication date in RUNG:03.03.2016
Views:6008
Downloads:221
Metadata:XML DC-XML DC-RDF
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COLLICA, Laura, FILIPČIČ, Andrej, KUKEC MEZEK, Gašper, SALEH, Ahmed, STANIČ, Samo, TRINI, Marta, VEBERIČ, Darko, VOROBIOV, Serguei, YANG, Lili, ZAVRTANIK, Danilo and ZAVRTANIK, Marko, 2015, Measurement of the muon content in air showers at the Pierre Auger Observatory. In : The 34th International Cosmic Ray Conference [online]. Published Scientific Conference Contribution. 2015. [Accessed 7 April 2025]. Retrieved from: https://repozitorij.ung.si/IzpisGradiva.php?lang=eng&id=2140
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Record is a part of a monograph

Title:The 34th International Cosmic Ray Conference : ICRC 2015 (The Hague, Netherlands)
Publisher:PoS, http://pos.sissa.it/
Year of publishing:2015
Conference organizer:International Union of Pure and Applied Physics (IUPAP)
Collection title:Proceedings of ICRC 2015

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License:CC BY-NC-SA 4.0, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International
Link:http://creativecommons.org/licenses/by-nc-sa/4.0/
Description:A Creative Commons license that bans commercial use and requires the user to release any modified works under this license.
Licensing start date:02.03.2016

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