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Behaviour of the EAS Age Parameter in the Knee Energy Region

R.K. Dey A. Bhadra J.-N. Capdevielle 1
1 APC - AHE - APC - Astrophysique des Hautes Energies
APC (UMR_7164) - AstroParticule et Cosmologie, Dipartimento di Astronomia, Universita degli Studi di Bologna
Abstract : Analyzing simulated EAS events generated with the CORSIKA code, the characteristics of lateral distribution of electrons in EAS around the knee energy region of the primary energy spectrum have been studied and compared with experimental observations. The differences between the EGS4 and the NKG output of CORSIKA in respect to electron radial density distribution have been investigated. The relation between lateral and longitudinal age parameters has been studied after introducing the notion of the local age parameter that reflects the profile of the lateral distribution of electrons in EAS. The present analysis motivates the inclusion of the lateral shower age in a multiparameter study of EAS to extract information on hadronic interactions and primary composition.
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Submitted on : Tuesday, September 11, 2012 - 2:08:42 AM
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R.K. Dey, A. Bhadra, J.-N. Capdevielle. Behaviour of the EAS Age Parameter in the Knee Energy Region. XVI International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2010), Jul 2010, Batavia, United States. pp.5396. ⟨in2p3-00730716⟩



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