| Issue |
Europhys. Lett.
Volume 45, Number 4, February II 1999
|
|
|---|---|---|
| Page(s) | 437 - 443 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i1999-00185-0 | |
| Published online | 01 September 2002 | |
Multifractal characterisation of fluctuations in simulated Extensive Air Showers
1
Departamento de Fizsica Aplicada e I.S., E.U.I.T. Industrial
Universidad Politezcnica de Madrid - E-28012 Madrid, Spain
2
Departamento de Fzsica Atzmica, Molecular y Nuclear, Facultad
de Ciencias Fzsicas
Universidad Complutense de Madrid - E-28040 Madrid, Spain
Received:
17
July
1998
Accepted:
10
December
1998
High-energy interactions of gamma rays and protons with the Earth atmosphere have been simulated by means of the CORSIKA Monte Carlo code, and the secondary-particle density distributions in the resulting extensive air showers, at ground level, have been studied. It is shown that the fluctuations of the density distributions as a function of the polar angle have features typical of a 1/f noise. The sample is then analysed in order to study its scaling behaviour and we find that it can be parametrized by means of a universal multifractal approach.
PACS: 05.40.+j – Fluctuation phenomena, random processes, and Brownian motion / 98.70.Sa – Cosmic rays (including sources, origin, acceleration, and interactions)
© EDP Sciences, 1999
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