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G4ExcitedDeltaConstructor.hh
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27 // $Id$
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30 // --------------------------------------------------------------
31 // GEANT 4 class implementation file
32 //
33 // History: first implementation, based on object model of
34 // 10 oct 1998 H.Kurashige
35 // ---------------------------------------------------------------
36 #ifndef G4ExcitedDeltaConstructor_h
37 #define G4ExcitedDeltaConstructor_h 1
38 
39 #include "globals.hh"
40 #include "G4ios.hh"
42 
44 {
45  //This class is a utility class for construction
46  //short lived particles
47 
48  public:
51 
52  protected:
53  virtual G4int GetEncoding(G4int iIsoSpin3, G4int idxState);
54 
55  protected:
56  virtual G4bool Exist( G4int ){return true;}
57 
59  virtual G4String GetName(G4int iIso3, G4int iState);
60  virtual G4String GetMultipletName(G4int iState);
61 
62  virtual G4double GetMass( G4int state, G4int iso);
63  virtual G4double GetWidth( G4int state, G4int iso);
64  virtual G4int GetiSpin(G4int iState);
65  virtual G4int GetiParity(G4int iState);
66  virtual G4int GetEncodingOffset(G4int iState);
67 
69  G4int iIso3, G4int iState,
70  G4bool fAnti = false);
71  private:
72  G4DecayTable* AddNGammaMode( G4DecayTable* table, const G4String& name,
73  G4double br, G4int iIso3, G4bool fAnti);
74  G4DecayTable* AddNPiMode( G4DecayTable* table, const G4String& name,
75  G4double br, G4int iIso3, G4bool fAnti);
76  G4DecayTable* AddNRhoMode( G4DecayTable* table, const G4String& name,
77  G4double br, G4int iIso3, G4bool fAnti);
78  G4DecayTable* AddDeltaPiMode( G4DecayTable* table, const G4String& name,
79  G4double br, G4int iIso3, G4bool fAnti);
80  G4DecayTable* AddNStarPiMode( G4DecayTable* table, const G4String& name,
81  G4double br, G4int iIso3, G4bool fAnti);
82 
83  public:
84  enum { NStates = 9 };
85  private:
86  enum { DeltaIsoSpin = 3 };
87 
88  private:
89  static const char* name[ NStates ];
90  static const G4double mass[ NStates ];
91  static const G4double width[ NStates ];
92  static const G4int iSpin[ NStates ];
93  static const G4int iParity[ NStates ];
94  static const G4int encodingOffset[ NStates ];
95 
96  public:
97  enum { NumberOfDecayModes = 5};
98  private:
99  enum { NGamma=0, NPi=1, NRho=2, DeltaPi=3, NStarPi=4 };
100  private:
101  static const G4double bRatio[ NStates ][ NumberOfDecayModes];
102 };
103 
104 inline
106 {
107  return mass[iState];
108 }
109 
110 inline
112 {
113  return width[iState];
114 }
115 
116 inline
118 {
119  return iSpin[iState];
120 }
121 
122 inline
124 {
125  return iParity[iState];
126 }
127 
128 inline
130 {
131  return encodingOffset[iState];
132 }
133 
134 inline
136 {
137  // Quark contents
138  // iIso3 = +3 : uuu
139  // iIso3 = +1 : uud
140  // iIso3 = -1 : udd
141  // iIso3 = -3 : ddd
142  G4int quark=0;
143  if ( iQ == 0 ){
144  if ( iIso3 == -3 ){
145  // d-quark
146  quark = 1;
147  } else {
148  // u-quark
149  quark = 2;
150  }
151  } else if ( iQ == 2 ){
152  if ( iIso3 == +3 ){
153  // u-quark
154  quark = 2;
155  } else {
156  // d-quark
157  quark = 1;
158  }
159  } else {
160  if (( iIso3 == -1 )||( iIso3 == -3 )) {
161  // d-quark
162  quark = 1;
163  } else {
164  // u-quark
165  quark = 2;
166  }
167  }
168  return quark;
169 }
170 
171 inline
173 {
174  return name[iState];
175 }
176 
177 inline
179 {
180  G4String particle = name[iState];
181  if ( iIso3 == -3 ){
182  particle += "-";
183  } else if ( iIso3 == -1 ){
184  particle += "0";
185  } else if ( iIso3 == +1 ){
186  particle += "+";
187  } else {
188  particle += "++";
189  }
190  return particle;
191 }
192 #endif
193 
194 
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200 
201 
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