My understanding is that the G4PhotonEvaporation class handles the nuclear deexcitation (Hauf, et al., Radioactive Decays in Geant4, IEEE Transactions on Nuclear Science 60(4), 2013). However, in the rdecay01 example (/extended/radioactivedecay), the G4DeexPrecoParameters class is used, which I guess is what the manual also suggests to use (no mention about G4PhotonEvaporation):
“Options are available for steering of the pre-compound model and the de-excitation module. These options may be invoked by the new C++ interface class G4DeexPrecoParameters.”
Could anyone please tell how G4PhotonEvaporation and G4DeexPrecoParameters are related?