| Geant4 Cross Reference |
1 // 1
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25 //
26 //
27 // Abstract base class for multibody "phase sp
28 // implement a specific algorithm, such as Kop
29 // NBody. Subclasses are used by G4HadPhaseSp
30 //
31 // Author: Michael Kelsey (SLAC) <kelsey@slac
32
33 #ifndef G4VHadDecayAlgorithm_HH
34 #define G4VHadDecayAlgorithm_HH 1
35
36 #include "globals.hh"
37 #include "G4LorentzVector.hh"
38 #include "G4ThreeVector.hh"
39 #include <vector>
40 #include <iosfwd>
41
42 class G4VHadDecayAlgorithm {
43 public:
44 G4VHadDecayAlgorithm(const G4String& algName
45 : name(algName), verboseLevel(verbose) {;}
46 virtual ~G4VHadDecayAlgorithm() {;}
47
48 // Initial state (rest mass) and list of fin
49 void Generate(G4double initialMass,
50 const std::vector<G4double>& masses,
51 std::vector<G4LorentzVector>& finalState);
52
53 // Enable (or disable if 0) diagnostic messa
54 virtual void SetVerboseLevel(G4int verbose)
55 G4int GetVerboseLevel() const { return verbo
56 const G4String& GetName() const { return nam
57
58 protected:
59 // Subclasses MUST implement these functions
60 virtual void GenerateTwoBody(G4double initia
61 const std::vector<G4double>& mass
62 std::vector<G4LorentzVector>& fin
63
64 virtual void GenerateMultiBody(G4double init
65 const std::vector<G4double>& masses,
66 std::vector<G4LorentzVector>& finalSt
67
68 // Validate kinematics (e.g., limit number o
69 // Subclasses may override or call back to t
70 virtual G4bool IsDecayAllowed(G4double initi
71 const std::vector<G4double>& masses) c
72
73 // Two-body momentum function (c.f. PDK from
74 G4double TwoBodyMomentum(G4double M0, G4doub
75
76 // Convenience functions for uniform angular
77 G4double UniformTheta() const;
78 G4double UniformPhi() const;
79
80 // Utility to dump vector contents to line o
81 void PrintVector(const std::vector<G4double>
82 std::ostream& os) const;
83
84 private:
85 G4String name;
86 G4int verboseLevel;
87 };
88
89 #endif /* G4VHadDecayAlgorithm_HH */
90