This packages provides tools to run a fast track simulation on top of the core
library. The fast track simulation (Fatras) uses the actor plug-in mechanism of
the Acts::Propagator and its predictive navigation to simulate particle
trajectories through the tracking detector.
As a fast track simulation, it uses the surface-based reconstruction geometry
description, i.e. Acts::TrackingGeometry, as a simulation geometry instead of
a detailed volumetric description. Interactions and material effects are
simulated using parametrized models:
- Multiple Coulomb scattering is simulated by Gaussian (mixture) approximations.
- Ionisation loss is simulated using the Bethe-Bloch formalism.
- Radiation loss is simulated using the Bethe-Heitler formalism.