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0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 //
0027 // -------------------------------------------------------------------
0028 //
0029 // GEANT4 Class header file
0030 //
0031 //
0032 // File name:     G4eeToHadronsModel
0033 //
0034 // Author:        Vladimir Ivanchenko
0035 //
0036 // Creation date: 25.10.2003
0037 //
0038 // Modifications:
0039 // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
0040 // 18-05-05 Use optimized interfaces (V.Ivantchenko)
0041 //
0042 
0043 //
0044 // Class Description:
0045 //
0046 
0047 // -------------------------------------------------------------------
0048 //
0049 
0050 #ifndef G4eeToHadronsModel_h
0051 #define G4eeToHadronsModel_h 1
0052 
0053 #include "G4VEmModel.hh"
0054 
0055 class G4PhysicsVector;
0056 class G4Vee2hadrons;
0057 
0058 class G4eeToHadronsModel : public G4VEmModel
0059 {
0060 
0061 public:
0062 
0063   explicit G4eeToHadronsModel(G4Vee2hadrons*, G4int ver=0,
0064                               const G4String& nam = "eeToHadrons");
0065 
0066   ~G4eeToHadronsModel() override;
0067 
0068   void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
0069 
0070   G4double CrossSectionPerVolume(const G4Material*,
0071                  const G4ParticleDefinition*,
0072                  G4double kineticEnergy,
0073                  G4double cutEnergy,
0074                  G4double maxEnergy) override;
0075 
0076   G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
0077                                       G4double kineticEnergy,
0078                                       G4double Z, G4double A,
0079                                       G4double cutEnergy = 0.0,
0080                                       G4double maxEnergy = DBL_MAX) override;
0081 
0082   G4double ComputeCrossSectionPerElectron(const G4ParticleDefinition*,
0083                                           G4double kineticEnergy,
0084                                           G4double cutEnergy = 0.0,
0085                                           G4double maxEnergy = DBL_MAX);
0086 
0087   void SampleSecondaries(std::vector<G4DynamicParticle*>*,
0088              const G4MaterialCutsCouple*,
0089              const G4DynamicParticle*,
0090              G4double tmin = 0.0,
0091              G4double maxEnergy = DBL_MAX) override;
0092 
0093   G4DynamicParticle* GenerateCMPhoton(G4double);
0094 
0095   inline G4double PeakEnergy() const;
0096 
0097   // hide assignment operator
0098   G4eeToHadronsModel & operator=(const  G4eeToHadronsModel &right) = delete;
0099   G4eeToHadronsModel(const  G4eeToHadronsModel&) = delete;
0100 
0101 private:
0102 
0103   void ComputeCMCrossSectionPerElectron();
0104 
0105   const G4ParticleDefinition* theGamma;
0106 
0107   G4Vee2hadrons*        model;
0108   G4PhysicsVector*      crossPerElectron = nullptr;
0109   G4PhysicsVector*      crossBornPerElectron = nullptr;
0110 
0111   G4double              lowKinEnergy;
0112   G4double              peakKinEnergy;
0113   G4double              highKinEnergy;
0114 
0115   G4double              emin;
0116   G4double              epeak;
0117   G4double              emax;
0118 
0119   G4int                 nbins = 100;
0120   G4int                 verbose;
0121   G4bool                isInitialised = false;
0122 };
0123 
0124 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0125 
0126 inline G4double G4eeToHadronsModel::PeakEnergy() const
0127 {
0128   return peakKinEnergy;
0129 }
0130 
0131 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
0132 
0133 #endif