3.1. FCCee: Full Simulation of CLD, the CLID detector for FCC
An adaptation of the CLIC detector for FCC-ee has been implemented and made available for tests at the times of the CDR (see, for example, N. Bacchetta et al., CLD – A Detector Concept for the FCC-ee) The DD4hep description, initially implemented under iLCSoft/lcgeo, is now availble under FCCDetectors which serves as reference.
While it is possible to simulate the detector through k4SimGeant4
for the Geant4-based full simulation and produce a EDM4hep
output,
to use the iLCSoft reconstruction tools it is still required to go through the SLCIO
file format.
The easiest way to do that is to use DDSim
for the full simulation.
In this chapter we illustrate how to run this workflow.
3.1.1. Setting up the environment
The solution described in this chapter is still in preview mode. Therefore we need the latest version of the software
source /cvmfs/sw-nightlies.hsf.org/key4hep/setup.sh
3.1.2. Generate some signal to process: taus from the particle gun
To illustrate this workflow we use a simple but significat example: single taus generated with the particle gun.
We generate this with k4run
and we save the result in stdHEP
format for later processing in DDSim
.