source: trunk/source/processes/electromagnetic/highenergy/include/G4hPairProduction.hh @ 1007

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// $Id: G4hPairProduction.hh,v 1.1 2008/03/06 11:47:11 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-02 $
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4hPairProduction
//
// Author:        Vladimir Ivanchenko on base of model for muons
//
// Creation date: 01.03.2008
//
// Modifications:
//
//
// Class Description:
//
// This class manages the PairProduction process for hadrons
// it inherites from G4VContinuousDiscreteProcess via G4VEnergyLossProcess.
//

// -------------------------------------------------------------------
//

#ifndef G4hPairProduction_h
#define G4hPairProduction_h 1

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#include "globals.hh"
#include "G4VEnergyLossProcess.hh"
#include "G4VEmModel.hh"

class G4ParticleChangeForLoss;

class G4hPairProduction : public G4VEnergyLossProcess
{
public:

  G4hPairProduction(const G4String& processName = "hPairProd");

  virtual ~G4hPairProduction();

  G4bool IsApplicable(const G4ParticleDefinition& p);

  G4double MinPrimaryEnergy(const G4ParticleDefinition* p,
                            const G4Material*, G4double cut);

  // Print out of the class parameters
  void PrintInfo();

protected:

  void InitialiseEnergyLossProcess(const G4ParticleDefinition*,
                                   const G4ParticleDefinition*);

private:

  G4hPairProduction & operator=(const G4hPairProduction &right);
  G4hPairProduction(const G4hPairProduction&);

  const G4ParticleDefinition* theParticle;
  const G4ParticleDefinition* theBaseParticle;

  G4ParticleChangeForLoss*    fParticleChange;

  G4double                    lowestKinEnergy;
  G4bool                      isInitialised;

};

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inline 
G4bool G4hPairProduction::IsApplicable(const G4ParticleDefinition& p)
{
  return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 110.0*MeV);
}

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inline 
G4double G4hPairProduction::MinPrimaryEnergy(const G4ParticleDefinition*,
                                              const G4Material*,
                                              G4double)
{
  return lowestKinEnergy;
}

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#endif