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Title:Extension of the measurement of the proton-air cross section with the Pierre Auger Observatory
Authors:Ulrich, Ralf (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.
Files:.pdf ICRC2015_401.pdf (114,02 KB)
 
Language:English
Work type:Not categorized (r6)
Tipology:1.08 - Published Scientific Conference Contribution
Organization:UNG - University of Nova Gorica
Abstract:With hybrid data of the Pierre Auger Observatory it is possible to measure the cross section of proton-air collisions at energies far beyond the reach of the LHC. Since the first measurement by the Pierre Auger Collaboration the event statistics has increased significantly. The proton-air cross section is now estimated in the two energy intervals in lg(E/eV) from 17.8 to 18 and from 18 to 18.5. These energies are chosen so that they maximise the available event statistics and at the same time lie in the region most compatible with a significant primary proton fraction. Of these data, only the 20% of most proton-like events are considered for the measurement. Furthermore, with a new generation of hadronic interaction models which have been tuned to LHC data, the model-dependent uncertainties of the measurement are re-visited.
Keywords:Pierre Auger Observatory, extensive air showers, proton-air cross section, hadronic interaction models
Year of publishing:2015
COBISS_ID:4152571 Link is opened in a new window
URN:URN:SI:UNG:REP:08PXOBFA
License:CC BY-NC-SA 4.0
This work is available under this license: Creative Commons Attribution Non-Commercial Share Alike 4.0 International
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Record is a part of a monograph

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

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