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//-----------------------------------------------------------------------------
// File and Version Information:
// $Id: BgsGentleGenocide.hh,v 1.1 2007/10/12 07:30:20 caogf Exp $
//
// Description:
//      Class BgsGentleGenocide
//
//      A process that prevents the associated particle from being tracked
//      if it has traveled more than the specified number of steps and
//      falls below the specified kinetic energy.
//
//      To fix an apparent "loophole" in hadronic ionization for tritium
//
// Environment:
//      Software developed for the BaBar Detector at the SLAC B-Factory.
//
// Author List:
//      David Williams
//
// Copyright Information:
//      Copyright (C) 2001         SLAC
//
//-----------------------------------------------------------------------------

#ifndef BgsGentleGenocide_hh
#define BgsGentleGenocide_hh

#include "BgsGenocide.hh"

class BgsGentleGenocide : public BgsGenocide {
        public:
        BgsGentleGenocide( G4double theMaxKineticEnergy,
                           G4int theMinNumberSteps,
                           const G4String &name="BgsGentleGenocide",
                           G4ProcessType type=fUserDefined           );
        virtual ~BgsGentleGenocide();

        //
        // Derived methods
        //
        virtual G4double
        PostStepGetPhysicalInteractionLength( const G4Track& track,
                                              G4double   previousStepSize,
                                              G4ForceCondition* condition );

        protected:
        G4double maxKineticEnergy;
        G4int minNumberSteps;
};


#endif

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