### Simulating radio emission from air showers with CORSIKA 8
### Simulating radio emission from air showers with CORSIKA 8
CORSIKA 8 (C8) is a new framework for air shower simulations implemented in modern C++17, based on past experience with existing codes like CORSIKA 7 (C7). The flexible and modular structure of the project allows the development of independent modules that can produce a fully customizable air shower simulation. The radio module in particular, is designed to filter relevant particle properties from the simulated particle showers, treat the signal propagation and electric field calculation to each antenna in an autonomous and flexible way. Our module provides the possibility to simulate simultaneously the radio emission calculated with two independent formalisms, namely the “Endpoints” and “ZHS”. The key feature of the module’s design is the fact that it sets the standard on how to take advantage of C8’s novel environment and geometry and provides a straightforward interface for one to expand upon and simulate specific physical scenarios. In this work, we will present an air shower simulation comparison study of comparable showers generated with C8, C7 and ZHAireS.
CORSIKA 8 is a new framework for air shower simulations implemented in modern C++17, based on past experience with existing codes like CORSIKA 7. The flexible and modular structure of the project allows the development of independent modules that can produce a fully customizable air shower simulation. The radio module in particular is designed to treat the signal propagation and electric field calculation to each antenna in an autonomous and flexible way. It provides the possibility to simulate simultaneously the radio emission calculated with two independent time-domain formalisms, the “Endpoint formalism” as implemented in CoREAS and the “ZHS” algorithm as ported from ZHAireS. Future development for the simulation of radio emission from particle showers in complex scenarios, for example cross-media showers penetrating from air into ice, can build on the existing radio module, re-using the established interfaces.
In this work, we will present the design and implementation of the radio module in CORSIKA 8, and show a direct comparison of radio emission from air showers simulated with CORSIKA 8, CORSIKA 7 and ZHAireS.
