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G4LundStringFragmentation.hh
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27 // $Id: G4LundStringFragmentation.hh 100828 2016-11-02 15:25:59Z gcosmo $
28 //
29 // -----------------------------------------------------------------------------
30 // GEANT 4 class implementation file
31 //
32 // History: first implementation, Maxim Komogorov, 10-Jul-1998
33 // -----------------------------------------------------------------------------
34 
35 #ifndef G4LundStringFragmentation_h
36 #define G4LundStringFragmentation_h 1
37 
39 
40 //**************************************************************************************************************
41 
43 {
44  public:
45 
48 
49  virtual G4KineticTrackVector* FragmentString(const G4ExcitedString& theString);
50 
51  private:
52  // not implemented to protect/forbid use
54  const G4LundStringFragmentation & operator=(const G4LundStringFragmentation &right);
55  int operator==(const G4LundStringFragmentation &right) const;
56  int operator!=(const G4LundStringFragmentation &right) const;
57 
58  private:
59  void SetMinimalStringMass(const G4FragmentingString * const string);
60  void SetMinimalStringMass2(const G4double aValue);
61 
62  virtual G4bool StopFragmenting(const G4FragmentingString * const string);
63  virtual G4bool IsFragmentable(const G4FragmentingString * const string);
64 
65  virtual G4bool SplitLast(G4FragmentingString * string,
66  G4KineticTrackVector * LeftVector,
67  G4KineticTrackVector * RightVector);
68 
69  virtual void Sample4Momentum(G4LorentzVector* Mom, G4double Mass,
70  G4LorentzVector* AntiMom, G4double AntiMass,
71  G4double InitialMass);
72 
73  virtual G4LorentzVector * SplitEandP(G4ParticleDefinition * pHadron,
74  G4FragmentingString * string,
75  G4FragmentingString * newString);
76 
77  virtual G4double GetLightConeZ(G4double zmin, G4double zmax,
78  G4int PartonEncoding,
79  G4ParticleDefinition* pHadron,
80  G4double Px, G4double Py);
81 
82  G4double lambda(G4double s, G4double m1_Sqr, G4double m2_Sqr);
83 
84  virtual G4ParticleDefinition * DiQuarkSplitup(G4ParticleDefinition* decay,
85  G4ParticleDefinition *&created);
86 
87  private:
88  // Internal methods introduced to improve the code structure (AR Nov 2011)
89 
90  G4bool Loop_toFragmentString(G4ExcitedString * & theStringInCMS,
91  G4KineticTrackVector * & LeftVector,
92  G4KineticTrackVector * & RightVector);
93 
94  G4bool Diquark_AntiDiquark_belowThreshold_lastSplitting(G4FragmentingString * & string,
95  G4ParticleDefinition * & LeftHadron,
96  G4ParticleDefinition * & RightHadron);
97 
98  G4bool Diquark_AntiDiquark_aboveThreshold_lastSplitting(G4FragmentingString * & string,
99  G4ParticleDefinition * & LeftHadron,
100  G4ParticleDefinition * & RightHadron);
101 
102  G4bool Quark_AntiQuark_lastSplitting(G4FragmentingString * & string,
103  G4ParticleDefinition * & LeftHadron,
104  G4ParticleDefinition * & RightHadron);
105 
106  G4bool Quark_Diquark_lastSplitting(G4FragmentingString * & string,
107  G4ParticleDefinition * & LeftHadron,
108  G4ParticleDefinition * & RightHadron );
109 
110  G4int SampleState(void);
111 
112  private:
113  // ------ For estimation of a minimal string mass ---------------
114  G4double Mass_of_light_quark;
115  G4double Mass_of_heavy_quark;
116  G4double Mass_of_string_junction;
117  // ------ An estimated minimal string mass ----------------------
118  G4double MinimalStringMass;
119  G4double MinimalStringMass2;
120  // ------ Minimal invariant mass used at a string fragmentation -
121  G4double WminLUND;
122 
123  G4int Meson[3][3][6];
124  G4double MesonWeight[3][3][6];
125 
126  G4int Baryon[3][3][3][4];
127  G4double BaryonWeight[3][3][3][4];
128 
129  G4double Prob_QQbar[3];
130 
131  // ------ To improve the code structure
132  G4ParticleDefinition * FS_LeftHadron[35], * FS_RightHadron[35];
133  G4double FS_Weight[35];
134  G4int NumberOf_FS;
135 };
136 
137 //**************************************************************************************************************
138 // Class G4LundStringFragmentation
139 
140 #endif
141 
virtual G4KineticTrackVector * FragmentString(const G4ExcitedString &theString)
int G4int
Definition: G4Types.hh:78
const XML_Char * s
Definition: expat.h:262
ParticleList decay(Cluster *const c)
Carries out a cluster decay.
bool G4bool
Definition: G4Types.hh:79
double G4double
Definition: G4Types.hh:76