include/Geant4/G4eplusAnnihilation.hh

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0025 //
0026 //
0027 // -------------------------------------------------------------------
0028 //
0029 // GEANT4 Class header file
0030 //
0031 //
0032 // File name:     G4eplusAnnihilation
0033 //
0034 // Author:        Vladimir Ivanchenko on base of Michel Maire code
0035 //
0036 // Creation date: 02.08.2004
0037 //
0038 // Modifications:
0039 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivanchenko)
0040 // 15-03-05 Update interface according to changings
0041 //           in G4VEmProcess (V.Ivanchenko)
0042 // 08-04-05 Major optimisation of internal interfaces (V.Ivanchenko)
0043 // 04-05-05 Make class to be default (V.Ivanchenko)
0044 // 04-12-05 SetProposedKineticEnergy(0.) for annihilated positron (mma)
0045 // 09-08-06 add SetModel(G4VEmModel*) (mma)
0046 // 12-09-06, move SetModel(G4VEmModel*) in G4VEmProcess (mma)
0047 //
0048 //
0049 // Class Description:
0050 //
0051 // This class manages the process of e+ annihilation at rest and on fly
0052 // It is possible to enable ApplyCuts and Entanglement options via
0053 // G4EmParameters class using UI commands or C++ interface.
0054 // EM splitting or Russian roulette are allowed is corresponding options
0055 // are enabled.
0056 //
0057 // -------------------------------------------------------------------
0058 //
0059
0060 #ifndef G4eplusAnnihilation_h
0061 #define G4eplusAnnihilation_h 1
0062
0063 #include "G4VEmProcess.hh"
0064
0065 class G4ParticleDefinition;
0066 class G4VPositronAtRestModel;
0067
0068 class G4eplusAnnihilation : public G4VEmProcess
0069 {
0070
0071 public:
0072
0073   explicit G4eplusAnnihilation(const G4String& name = "annihil");
0074
0075   ~G4eplusAnnihilation() override;
0076
0077   G4bool IsApplicable(const G4ParticleDefinition& p) final;
0078
0079   G4VParticleChange* AtRestDoIt(
0080                              const G4Track& track,
0081                              const G4Step& stepData) override;
0082
0083   G4double AtRestGetPhysicalInteractionLength(
0084                              const G4Track& track,
0085                              G4ForceCondition* condition
0086                             ) override;
0087
0088   // print documentation in html format
0089   void ProcessDescription(std::ostream&) const override;
0090
0091   G4eplusAnnihilation & operator=(const G4eplusAnnihilation &right) = delete;
0092   G4eplusAnnihilation(const G4eplusAnnihilation&) = delete;
0093
0094 protected:
0095
0096   void InitialiseProcess(const G4ParticleDefinition*) override;
0097
0098   // Print out of the class parameters
0099   void StreamProcessInfo(std::ostream& outFile) const override;
0100
0101 private:
0102
0103   G4VPositronAtRestModel* f2GammaAtRestModel{nullptr};
0104   G4VPositronAtRestModel* f3GammaAtRestModel{nullptr};
0105   G4int fEntanglementModelID;
0106   G4bool isInitialised{false};
0107   G4bool fEntangled{false};
0108   G4bool fApplyCuts{false};
0109 };
0110
0111 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0112
0113 #endif