A detailed comparison of REAS3 and MGMR simulations for radio emission from EAS

Abstract

In the last years, several models and simulations calculating the radio emission from cosmic ray air showers have been developed. However, a number of those made conflicting predictions on the pulse shapes and the amplitudes of the radio signal. In the scope of this paper, we discuss a detailed comparison of two independent and complementary theoretical approaches, namely MGMR and REAS3. Furthermore, we study the influence of the underlying air shower models on the predicted pulse shapes and amplitudes and show that remaining discrepancies between MGMR and REAS3 are mostly determined by the air shower models. With this general agreement, a breakthrough in the understanding of the modelling of radio emission from air showers has been achieved.