Import Geant4 5.0.0 source tree

2016-06-08 16:57:27 +02:00
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+//
+// ********************************************************************
+// * DISCLAIMER                                                       *
+// *                                                                  *
+// * The following disclaimer summarizes all the specific disclaimers *
+// * of contributors to this software. The specific disclaimers,which *
+// * govern, are listed with their locations in:                      *
+// *   http://cern.ch/geant4/license                                  *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.                                                             *
+// *                                                                  *
+// * This  code  implementation is the  intellectual property  of the *
+// * GEANT4 collaboration.                                            *
+// * By copying,  distributing  or modifying the Program (or any work *
+// * based  on  the Program)  you indicate  your  acceptance of  this *
+// * statement, and all its terms.                                    *
+// ********************************************************************
+//
+//
+// -------------------------------------------------------------------
+//
+// GEANT4 Class header file
+//
+//
+// File name:     G4MuPairProductionModel
+//
+// Author:        Vladimir Ivanchenko on base of Laszlo Urban code
+// 
+// Creation date: 18.05.2002
+//
+// Modifications: 
+
+//
+// Class Description: 
+//
+// Implementation of e+e- pair production by muons
+// 
+
+// -------------------------------------------------------------------
+//
+
+#ifndef G4MuPairProductionModel_h
+#define G4MuPairProductionModel_h 1
+
+#include "G4VEmModel.hh"
+
+class G4MuPairProductionModel : public G4VEmModel
+{
+
+public:
+
+  G4MuPairProductionModel(const G4ParticleDefinition* p = 0);
+
+  ~G4MuPairProductionModel();
+
+  G4double HighEnergyLimit(const G4ParticleDefinition* p,
+                           const G4Material*);
+ 
+  G4double LowEnergyLimit(const G4ParticleDefinition* p,
+                          const G4Material*);
+
+  void SetHighEnergyLimit(const G4Material*, G4double e) {highKinEnergy = e;};
+ 
+  void SetLowEnergyLimit(const G4Material*, G4double e) {lowKinEnergy = e;};
+
+  G4double MinEnergyCut(const G4ParticleDefinition*,
+                        const G4Material*);
+ 
+  G4bool IsInCharge(const G4ParticleDefinition*,
+	            const G4Material*);
+
+  G4double ComputeDEDX(const G4Material*,
+                       const G4ParticleDefinition*,
+                             G4double kineticEnergy,
+                             G4double cutEnergy);
+
+  G4double CrossSection(const G4Material*,
+                        const G4ParticleDefinition*,
+                              G4double kineticEnergy,
+                              G4double cutEnergy,
+                              G4double maxEnergy);
+
+  G4std::vector<G4DynamicParticle*>* SampleSecondary(
+                                const G4Material*,
+                                const G4DynamicParticle*,
+                                      G4double tmin,
+                                      G4double maxEnergy);
+
+  virtual G4double MaxSecondaryEnergy(
+				const G4DynamicParticle* dynParticle); 
+protected:
+
+  virtual G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
+    				            G4double kineticEnergy); 
+
+private:
+
+  G4double ComputMuPairLoss(G4double Z, G4double tkin, G4double cut);  
+
+  G4double ComputeMicroscopicCrossSection(G4double tkin,
+                                          G4double Z,
+                                          G4double A,   
+                                          G4double cut);
+
+  G4double ComputeDMicroscopicCrossSection(G4double tkin,
+                                           G4double Z,
+                                           G4double pairEnergy);                                    
+
+  G4double ComputeDDMicroscopicCrossSection(G4double tkin,
+                                           G4double Z,
+                                           G4double pairEnergy,
+                                           G4double asymmetry);                                    
+
+  void ComputePartialSumSigma(const G4Material* material, G4double tkin, G4double cut);
+
+  const G4Element* SelectRandomAtom(const G4Material* material) const;
+
+  void MakeSamplingTables();
+
+  // hide assignment operator 
+  G4MuPairProductionModel & operator=(const  G4MuPairProductionModel &right);
+  G4MuPairProductionModel(const  G4MuPairProductionModel&);
+
+  G4double minPairEnergy;
+  G4double highKinEnergy;
+  G4double lowKinEnergy;
+  G4double minThreshold;
+
+  // tables for sampling 
+  G4int nzdat,ntdat,NBIN;
+  static G4double zdat[5],adat[5],tdat[8];
+  G4double ya[1001],proba[5][8][1001];
+
+  const G4Material* oldMaterial;
+  G4std::vector<G4DataVector*> partialSumSigma;
+  G4bool  samplingTablesAreFilled;
+};
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+inline 
+G4double G4MuPairProductionModel::MaxSecondaryEnergy(
+				 const G4DynamicParticle* dynParticle)
+{
+  return dynParticle->GetKineticEnergy();
+} 
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+inline 
+G4double G4MuPairProductionModel::MaxSecondaryEnergy(
+                                 const G4ParticleDefinition*,
+    				       G4double kineticEnergy)
+{
+  return kineticEnergy;
+}
+
+//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
+
+#endif