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Scaling behaviour of lateral distribution of electrons in EAS
Dey R.K., Bhadra A., Capdevielle J.-N.
Journal of Physics G: Nuclear and Particle Physics 39 (2012) 085201 - http://hal.in2p3.fr/in2p3-00730714
Planète et Univers/Astrophysique/Phénomènes cosmiques de haute energie
Physique/Astrophysique/Phénomènes cosmiques de haute energie
Scaling behaviour of lateral distribution of electrons in EAS
R.K. Dey, A. Bhadra, J.-N. Capdevielle1
1 :  APC - UMR 7164 - AstroParticule et Cosmologie
CNRS : UMR7164 – IN2P3 – Observatoire de Paris – Université Paris VII - Paris Diderot – CEA : DSM/IRFU
APC - UMR 7164, Université Paris Diderot, 10 rue Alice Domon et Léonie Duquet, case postale 7020, F-75205 Paris Cedex 13
From a Monte Carlo simulation study of cosmic ray air showers around the knee of the primary energy spectrum it is shown that, despite a strong radial dependence of the lateral shower age parameter, the lateral density distribution of electrons in cosmic ray EAS displays universality when expressed in terms of local age parameters. The nature of the radial variation of local age is found to depend on the choice of the effective Moliere radius, particularly for radial distances below about 400 m. The possible use of shower age parameters in a multi-parameter study of EAS for extracting information about the nature of the shower initiating particles, has been re-examined.

Articles dans des revues avec comité de lecture
Journal of Physics G: Nuclear and Particle Physics (J. Phys. G: Nucl. Part. Phys.)
Publisher Institute of Physics: Hybrid Open Access
ISSN 0954-3899 (eISSN : 1361-6471)