G4UA::AthenaDebugStackingAction Node1 G4UA::AthenaDebugStacking Action + AthenaDebugStackingAction() + ClassifyNewTrack() Node2 G4UA::AthenaStackingAction # m_config # m_oneOverWeightNeutron # m_oneOverWeightPhoton + AthenaStackingAction() + ClassifyNewTrack() # isNeutrino() # isGamma() # isNeutron() # getPrimaryParticleInformation() Node2->Node1 Node3 G4UserStackingAction Node3->Node2