Multifractal characterisation of fluctuations in simulated Extensive Air Showers
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
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