Electromagnetic interactions are a key component in air shower simulations. In CORSIKA 8, the calculation of electromagnetic interactions is carried out by the propagation library PROPOSAL (PRopagator with Optimal Precision and Optimized Speed for All Leptons), which was originally designed for the propagation of high-energy muons and has been considerably expanded to take over the calculation...
To simulate electromagnetic showers in CORSIKA 8, an interface to the lepton and photon propagator PROPOSAL has been written.
Thereby, PROPOSAL provides interaction cross sections, continuous energy losses, a description of multiple scattering, and the production of secondary particles in stochastic interactions for both the electromagnetic and the muonic shower component.
This contribution...