Reconstruction of air-shower parameters for large-scale radio detectors using the lateral distribution

Understand

We investigate features of the lateral distribution function (LDF) of the radio signal emitted by cosmic ray air-showers with primary energies $> 0.1$~EeV and its connection to air-shower parameters such as energy and shower maximum using CoREAS simulations made for the configuration of the Tunka-Rex antenna array.

• Taking into account all significant contributions to the total radio emission, such as by the geomagnetic effect, the charge excess, and the atmospheric refraction we parameterize the radio LDF.
• This parameterization is two-dimensional and has several free parameters.
• The large number of free parameters is not suitable for experiments of sparse arrays operating at low SNR (signal-to-noise ratios).