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De-excitation of the projectile and target nuclear pre-fragments by standard Geant4 de-excitation physics

Unless specified otherwise, G4WilsonAbrasionModel will instantiate the following de-excitation models to treat subsequent particle emission of the excited nuclear pre-fragments (from both the projectile and the target):

1 G4Evaporation, which will perform nuclear evaporation of ( $\alpha$ -particles, He, H, H, protons and neutrons, in competition with photo-evaporation and nuclear fission (if the nucleus has sufficiently high A).

2 G4FermiBreakUp, for nuclei with $A \le$ 12 and $Z \le$ 6.

3 G4StatMF, for multi-fragmentation of the nucleus (minimum energy for this process set to 5 MeV).

As an alternative to using this de-excitation scheme, the user may provide to the G4WilsonAbrasionModel a pointer to her own de-excitation handler, or invoke instantiation of the ablation model (G4WilsonAblationModel).