ParticleHP package uses several environment variables to define physics options.
USE_ONLY_PHOTON_EVAPORATION force ParticleHP to use PhotonEvaporation data set instead of its own deexcitation scheme.
I am unable to give a detailed description of all env variables (maybe in Geant4 doc ? …)
A list of env variables pertinent for users is included in examples hadronic :
- in Geant4 10.6 and earlier, see envHadronic.sh (or .csh)
- in Geant4 10.7, env variables have been replaced by C++ statements to be put in the main; see Hadr03.cc