Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/particles/management/include/G4PhaseSpaceDecayChannel.hh

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 25 //
 26 // G4PhaseSpaceDecayChannel
 27 //
 28 // Class description:
 29 //
 30 // Concrete decay channel for a particle.
 31 
 32 // Author: H.Kurashige, 27 July 1996
 33 // --------------------------------------------------------------------
 34 #ifndef G4PhaseSpaceDecayChannel_hh
 35 #define G4PhaseSpaceDecayChannel_hh 1
 36 
 37 #include "G4Cache.hh"
 38 #include "G4VDecayChannel.hh"
 39 #include "G4ios.hh"
 40 #include "globals.hh"
 41 
 42 class G4PhaseSpaceDecayChannel : public G4VDecayChannel
 43 {
 44   public:
 45     enum
 46     {
 47       MAX_N_DAUGHTERS = 5
 48     };
 49 
 50     // Constructors
 51     G4PhaseSpaceDecayChannel(G4int Verbose = 1);
 52     G4PhaseSpaceDecayChannel(const G4String& theParentName, G4double theBR,
 53                              G4int theNumberOfDaughters, const G4String& theDaughterName1,
 54                              const G4String& theDaughterName2 = "",
 55                              const G4String& theDaughterName3 = "",
 56                              const G4String& theDaughterName4 = "",
 57                              const G4String& theDaughterName5 = "");
 58 
 59     // Destructor
 60     ~G4PhaseSpaceDecayChannel() override = default;
 61 
 62     // Give daughter masses instead of sampling masses
 63     // according to PDG mass and width
 64     G4bool SetDaughterMasses(G4double masses[]);
 65 
 66     G4bool SampleDaughterMasses();
 67 
 68     G4DecayProducts* DecayIt(G4double) override;
 69     G4bool IsOKWithParentMass(G4double parentMass) override;
 70 
 71     static G4double Pmx(G4double e, G4double p1, G4double p2);
 72 
 73   private:
 74     G4DecayProducts* OneBodyDecayIt();
 75     G4DecayProducts* TwoBodyDecayIt();
 76     G4DecayProducts* ThreeBodyDecayIt();
 77     G4DecayProducts* ManyBodyDecayIt();
 78 
 79     G4Cache<G4double> current_parent_mass;  // A thread-local object
 80     G4double givenDaughterMasses[MAX_N_DAUGHTERS];
 81     G4bool useGivenDaughterMass = false;
 82 };
 83 
 84 #endif
 85