Features of the lateral particle distributions in the core of high-energy extensive air showers from a multifractal moments analysis

The central detector of the KASCADE (KArlsruhe Shower Core and Array Detector) experiment is able to observe the density distributions of the main extensive air shower (EAS) components in the shower core. In particular, the muon component is measured precisely by large-area position-sensitive multiwire proportional chambers (MWPC), installed below the hadron calorimeter (≈1000 g/cm2 Fe). Using the method of multifractal moments analysis, applied to simulated data as “observed” by the MWPC, differences of the EAS lateral distributions for different type of primaries are revealed. First results from data measured with the MWPC are reported.