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M. Kobal,
Pierre Auger Collaboration1Argentina: CNEA, CONAE-IAFE, CRICyT, IAR, TANDAR-CNEA-FCEyN, UNLP; Armenia: YPI; Australia: University of Adelaide; Bolivia: University of La Paz; Brazil: CBPF-LAFEX, Federal University Physics Institute, UNICAMP, University of Sao Paulo; China: IHEP; Czech Republic: ASU,FZU; France: BLTF l'Observatoire de Besanon, CDF-LPCC Collge de France, DARC, ENST, LPNHE Universit Paris 6; Germany: FZK-HPE, FZK-IK, Universität karlsruhe; Greece: NTU Athens; Italy: INFNSC Catania, University of Milano, University of Roma 2, University of Torino; Japan: ICRR; Mexico: BUAP, CINVESTAV-IPN, UNAM, UMSNH; Poland: INP Jagiellonian University Krakow, University of Lodz; Russia: MEPhI; Slovenia: IJS, PNG; UK: University of Leeds; USA: Colorado State University, EFI University of Chicago, Fermilab, Louisiana State University, Michigan Technological University, Northeastern University, Pennsylvania State University, UCLA, University of Colorado University, University of New Mexico, University of Utah; Vietnam: DNRI-VAEC Dalat, HINCST-VAEC, Hanoi.
The maximum number of particles in a 10 20 eV proton air shower exceeds 10 11 . Full simulations are no longer feasible and tracking of a representative sub-sample of particles (so-called ''thinning'') has to be introduced. The paper describes the physical and mathematical basis of the thinning algorithms and demonstrates how different thinning methods can be compared. A...
P. Auger Collaboration1CRICyT Mendoza, Fisica & Ingeneria Universidad Nacional de La Plata, IAFE Buenos Aires, Argentina; IAR Villa Elisa, Instituto Balseiro-CNEA Bariloche, Tandar-CNEA Buenos Aires, Argentina; UTN Mendoza and San Rafael, Argentina; Yerevan Physics Institute, Armenia; University of Adelaide, Australia; University of La Paz, Bolivia; University of Campinas, University of Sao Paulo, CBPF-Lafex Rio de Janeiro, Federal University Rio de Janeiro, Brazil; IHEP Beijing, China; ENST Paris, LTF Observatoire de Besancon, Collège de France, LPNHE Université Paris 6, France; FZK-HPE and FZK-IK Karlshruhe, Universitat Karlsruhe, Germany; NTU Athens, Greece; INFN Catania, University of Milano, University of Roma 2, University of Torino, Italy; ICRR Tokyo, Japan; BUAP Puebla, CINVESTAV-IPN, UNAM, UMSNH Morelia, Mexico; INP Jagiellonian University Krakow, University of Lodz, Poland; MEPhI Moscow, Russian Federation; Nova Gorica Polytechnic, Slovenia; University of Leeds, UK; University of Colorado Boulder, USA; EFI University of Chicago, USA; FNAL, Louisiana State University, USA; Michigan Technological University, USA; University of New Mexico, USA; Northeastern University, USA; Pennsylvania State University, USA; University of Utah, USA; DNRI-VAEC Dalat, HINCST-VAEC, Hanoi, Vietnam.,
Bertou,
Billoir,
Dagoret-Campagne
The presence of photons in the cosmic rays of highest energy (above 10 20 eV) would be a strong indication of a ''top-down'' production mechanism, e.g. the decay of topological defects. The Pierre Auger Observatory is aimed to detect cosmic rays in this energy range with a large statistics. The pair production in the magnetic field of the Earth, followed by hard synchrotron radiation,...
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