G4double condition(const G4ErrorSymMatrix &m)
static G4Neutron * NeutronDefinition()
G4VParticleChange * PostStepDoIt(const G4Track &aTrack, const G4Step &aStep)
G4bool IsApplicable(const G4ParticleDefinition &aParticleType)
G4double GetMeanFreePath(const G4Track &aTrack, G4double, G4ForceCondition *condition)