# The age parameter in giant EAS

Abstract : The age parameter from the longitudinal development can be used to describe the lateral distribution in giant EAS up to 5km from the axis, even if the scaling properties of Approximation B in cascade theory fail after $3.5$ Moliere radii. A set of analytic descriptions is proposed under the gaussian hypergeometric formalism replacing the Eulerian formalism of the classical NKG distribution, valid for electrons, muons and vertical equivalent muons (v.e.m.).
Document type :
Conference papers
19th European Cosmic Ray Symposium, Aug 2004, Florence, Italy. 20, No. 29, pp.6793-6795, 2004, <10.1142/S0217751X05030107>

http://hal.in2p3.fr/in2p3-00024819
Contributor : Simone Lantz <>
Submitted on : Thursday, October 6, 2005 - 3:19:32 PM
Last modification on : Wednesday, February 22, 2006 - 3:28:48 PM

### Citation

J.N. Capdevielle, F. Cohen, K. Sanosyan. The age parameter in giant EAS. 19th European Cosmic Ray Symposium, Aug 2004, Florence, Italy. 20, No. 29, pp.6793-6795, 2004, <10.1142/S0217751X05030107>. <in2p3-00024819>

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