Journal of Research on Many-body Systems

Journal of Research on Many-body Systems

Investigation of longitudinal and lateral age parameter of extensive air showers

Document Type : Full length research Paper

Author
seyed jalil fatemi
scientific member-shahid bahonar kerman university
10.22055/jrmbs.2016.12442
Abstract
Colliding high energy cosmic rays to the earth atmosphere produces secondary particles which generate extensive air shower (EAS) that develops in lateral and longitudinal directions. It was found that electron density in two directions is related to the age parameter. Dai et. al. [1] clarified the difference between the lateral and longitudinal age parameters in 1990. However, some scientists believe that the lateral age parameter from NKG model is not sufficient to describe the electro lateral dispersion. In the current study, given the experimental and simulation data and also given the results of Dai et. al. work, the dependence of the lateral and longitudinal age parameter to core distance is investigated. Finally, contrary to NKG theory, at Linsley theory, the age parameter is not a constant parameter, so it increases with an increase in core distance.
Keywords
cosmic rays
electromagnetic cascade
extensive air shower
lateral and longitudinal age parameter
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Journal of Research on Many-body Systems
Volume 6, Issue 12
Autumn 2017
Pages 67-71

  • Receive Date 01 August 2015
  • Revise Date 15 June 2016
  • Accept Date 19 June 2016