Template synthesis approach for radio emission from extensive air showers

TL;DR

This paper introduces a hybrid template synthesis method for radio emission from extensive air showers, enabling efficient reconstruction of signals across various shower parameters with high accuracy.

Contribution

It presents a novel hybrid approach combining Monte-Carlo simulations and semi-analytical relations for radio emission synthesis from air showers.

Findings

Achieves 5-10% accuracy in radio emission reconstruction.

Validates the method against CoREAS simulations.

Demonstrates applicability across a range of energies.

Abstract

We present a novel way to synthesise the radio emission from extensive air showers. It is a hybrid approach which uses a single microscopic Monte-Carlo simulation to generate the radio emission from a shower with a different longitudinal evolution, primary particle type and energy. The method employs semi-analytical relations which only depend on the shower parameters to transform the radio signal in the simulated antennas. We apply this method to vertical air showers with energies ranging from $10^{17}$ eV to $10^{19}$ eV and compare the results with CoREAS using two different metrics. In order to gauge the performance over our simulation set, we subsequently use every shower in the set as a template to synthesise the emission from the other showers. Depending on the scoring metric, template synthesis reconstructs the radio emission with an accuracy of 5 to 10%.