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// $Id: G4mplIonisationModel.hh 66996 2013-01-29 14:50:52Z gcosmo $
//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4mplIonisationModel
//
// Author:        Vladimir Ivanchenko 
//
// Creation date: 06.09.2005
//
// Modifications:
// 12.08.2007 ComputeDEDXAhlen function added (M. Vladymyrov)
//
// Class Description:
//
// Implementation of model of energy loss of the magnetic monopole

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

#ifndef G4mplIonisationModel_h
#define G4mplIonisationModel_h 1

#include "G4VEmModel.hh"
#include "G4VEmFluctuationModel.hh"

class G4ParticleChangeForLoss;

class G4mplIonisationModel : public G4VEmModel, public G4VEmFluctuationModel
{

public:

  G4mplIonisationModel(G4double mCharge,
		       const G4String& nam = "mplIonisation");

  virtual ~G4mplIonisationModel();

  virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);

  virtual G4double ComputeDEDXPerVolume(const G4Material*,
					const G4ParticleDefinition*,
					G4double kineticEnergy,
					G4double cutEnergy);

  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
				 const G4MaterialCutsCouple*,
				 const G4DynamicParticle*,
				 G4double tmin,
				 G4double maxEnergy);


  virtual G4double SampleFluctuations(const G4Material*,
                                      const G4DynamicParticle*,
                                      G4double& tmax,
                                      G4double& length,
                                      G4double& meanLoss);

  virtual G4double Dispersion(const G4Material*,
                              const G4DynamicParticle*,
                              G4double& tmax,
                              G4double& length);

  void SetParticle(const G4ParticleDefinition* p);

private:

  G4double ComputeDEDXAhlen(const G4Material* material, G4double bg2);

  // hide assignment operator
  G4mplIonisationModel & operator=(const  G4mplIonisationModel &right);
  G4mplIonisationModel(const  G4mplIonisationModel&);

  const G4ParticleDefinition* monopole;
  G4ParticleChangeForLoss*    fParticleChange;

  G4double mass;
  G4double magCharge;
  G4double twoln10;
  G4double betalow;
  G4double betalim;
  G4double beta2lim;
  G4double bg2lim;
  G4double chargeSquare;
  G4double dedxlim;
  G4int    nmpl;
  G4double pi_hbarc2_over_mc2;
};

#endif

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