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26 #ifndef G4QGSMSplitableHadron_h
27 #define G4QGSMSplitableHadron_h 1
28
29 #include "G4VSplitableHadron.hh"
30 #include "G4PartonVector.hh"
31 #include "G4MesonSplitter.hh"
32 #include "G4BaryonSplitter.hh"
33 #include "Randomize.hh"
34 #include <deque>
35
36 // based on prototype by Maxim Komogorov
37 // Splitting into methods, and centralizing of model parameters HPW Feb 1999
38 // continued clean-up of interfaces and algorithms HPW 1999.
39 // Redesign of data structures and algorithms HPW Feb 1999
40
41 class G4QGSMSplitableHadron : public G4VSplitableHadron
42 {
43 public:
44 G4QGSMSplitableHadron();
45 G4QGSMSplitableHadron(const G4ReactionProduct & aPrimary);
46 G4QGSMSplitableHadron(const G4ReactionProduct & aPrimary, G4bool Direction);
47 G4QGSMSplitableHadron(const G4Nucleon & aNucleon);
48 G4QGSMSplitableHadron(const G4Nucleon & aNucleon, G4bool Direction);
49
50 virtual ~G4QGSMSplitableHadron();
51
52 private:
53 const G4QGSMSplitableHadron & operator=(const G4QGSMSplitableHadron &right);
54
55 public:
56 virtual void SplitUp();
57 virtual void SetFirstParton(G4int PDGcode);
58 virtual void SetSecondParton(G4int PDGcode);
59 virtual G4Parton * GetNextParton();
60 virtual G4Parton * GetNextAntiParton();
61
62 private:
63 void InitParameters();
64 void DiffractiveSplitUp();
65 void SoftSplitUp();
66
67 G4ThreeVector GaussianPt(G4double widthSquare, G4double maxPtSquare);
68 void GetValenceQuarkFlavors(const G4ParticleDefinition * aPart,
69 G4Parton *& Parton1, G4Parton *& Parton2);
70 G4Parton * BuildSeaQuark(G4bool isAntiQuark, G4int aPDGCode, G4int nSeaPair);
71 G4double SampleX(G4double anXmin, G4int nSea, G4int theTotalSea, G4double aBeta);
72
73 private:
74 // aggregated data
75 G4bool Direction; // FALSE is target. - candidate for more detailed design.
76
77 std::deque<G4Parton *> Color;
78 std::deque<G4Parton *> AntiColor;
79 unsigned int iP;
80 unsigned int iAP;
81
82 private:
83 // associated classes
84 G4MesonSplitter theMesonSplitter;
85 G4BaryonSplitter theBaryonSplitter;
86
87 private:
88 // model parameters
89 G4double alpha;
90 G4double beta;
91 G4double theMinPz;
92 G4double StrangeSuppress;
93 G4double sigmaPt;
94 G4double widthOfPtSquare;
95 G4double minTransverseMass;
96 };
97
98 inline G4Parton* G4QGSMSplitableHadron::GetNextParton()
99 {
100 if(Color.size()==0) return 0;
101
102 G4Parton * result = Color.operator[](iP);
103 iP++; if(iP == Color.size()) iP=0;
104 return result;
105 }
106
107 inline G4Parton* G4QGSMSplitableHadron::GetNextAntiParton()
108 {
109 if(AntiColor.size() == 0) return 0;
110
111 G4Parton * result = AntiColor.operator[](iAP);
112 iAP++; if(iAP == AntiColor.size()) iAP=0;
113 return result;
114 }
115
116 inline void G4QGSMSplitableHadron::SetFirstParton(G4int)
117 {}
118 inline void G4QGSMSplitableHadron::SetSecondParton(G4int)
119 {}
120 #endif
121
122