include/Geant4/G4MuonToMuonPairProductionModel.hh

0001 //
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0024 // ********************************************************************
0025 //
0026 //
0027 // -------------------------------------------------------------------
0028 //
0029 // GEANT4 Class header file
0030 //
0031 //
0032 // File name:     G4MuonToMuonPairProductionModel
0033 //
0034 // Author:        Siddharth Yajaman on the base of Vladimir Ivantchenko code
0035 //
0036 // Creation date: 12.07.2022
0037 //
0038 // Modifications:
0039 //
0040
0041 //
0042 // Class Description:
0043 //
0044 // Implementation of mu+mu- pair production by muons
0045 // R. P. Kokoulin, S. R. Kelner, and A. A. Petrukhin,
0046 // in Proceedings of the International Cosmic Ray Conference,
0047 // Salt Lake City, 1999, edited by D. Kieda et al.
0048 // (American Institute of Physics, Melville, NY, 2000), Vol. 2, p. 20
0049 //
0050 // It inherits from G4MuPairProductionModel
0051 //
0052 // -------------------------------------------------------------------
0053 //
0054
0055 #ifndef G4MuonToMuonPairProductionModel_h
0056 #define G4MuonToMuonPairProductionModel_h 1
0057
0058 #include "G4MuPairProductionModel.hh"
0059 #include <vector>
0060
0061 class G4MuonToMuonPairProductionModel : public G4MuPairProductionModel
0062 {
0063 public:
0064
0065   explicit G4MuonToMuonPairProductionModel(const G4ParticleDefinition* p = nullptr,
0066                                            const G4String& nam = "muToMuonPairProd");
0067
0068   ~G4MuonToMuonPairProductionModel() = default;
0069
0070   // hide assignment operator and copy constructor
0071   G4MuonToMuonPairProductionModel & operator=
0072   (const G4MuonToMuonPairProductionModel &right) = delete;
0073   G4MuonToMuonPairProductionModel(const G4MuonToMuonPairProductionModel&) = delete;
0074
0075   G4double
0076   ComputeDMicroscopicCrossSection(G4double tkin, G4double Z,
0077                   G4double pairEnergy) override;
0078
0079   void SampleSecondaries(std::vector<G4DynamicParticle*>*,
0080              const G4MaterialCutsCouple*,
0081              const G4DynamicParticle*,
0082              G4double tmin,
0083              G4double maxEnergy) override;
0084
0085   G4double U_func(G4double Z, G4double rho2, G4double xi,
0086           G4double Y, G4double pairEnergy, const G4double B=183);
0087
0088 protected:
0089
0090   void DataCorrupted(G4int Z, G4double logTkin) const override;
0091
0092   G4ParticleDefinition* theMuonMinus = nullptr;
0093   G4ParticleDefinition* theMuonPlus = nullptr;
0094
0095   G4double factorForCross;
0096   G4double minPairEnergy;
0097   G4double muonMass;
0098   G4double mueRatio;
0099 };
0100
0101 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0102
0103 #endif