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G4XNNElasticLowE.cc
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26 #include "globals.hh"
27 #include "G4ios.hh"
28 #include "G4Exp.hh"
29 #include "G4Log.hh"
30 #include "G4SystemOfUnits.hh"
31 #include "G4XNNElasticLowE.hh"
32 #include "G4KineticTrack.hh"
33 #include "G4ParticleDefinition.hh"
34 #include "G4PhysicsVector.hh"
35 #include "G4PhysicsLnVector.hh"
36 #include "G4Proton.hh"
37 #include "G4Neutron.hh"
38 
41 
42 // Low energy limit of the cross-section table (in GeV)
43 // Units are assigned when filling the PhysicsVector
44 const G4double G4XNNElasticLowE::_eMinTable = 1.8964808;
46 
47 // Cross-sections in mb
48 // Units are assigned when filling the PhysicsVector
49 
51 
53 {
54  60.00, //was 0.
55  33.48, 26.76, 25.26, 24.55, 23.94, 23.77, 23.72, 23.98,
56  25.48, 27.52, 27.72, 27.21, 25.80, 26.00, 24.32, 23.81,
57  24.37, 24.36, 23.13, 22.43, 21.71, 21.01, 20.83, 20.74,
58  20.25, 20.10, 20.59, 20.04, 20.83, 20.84, 21.07, 20.83,
59  20.79, 21.88, 21.15, 20.92, 19.00, 18.60, 17.30, 17.00,
60  16.70, 16.50, 16.20, 15.80, 15.57, 15.20, 15.00, 14.60,
61  14.20, 14.00, 13.80, 13.60, 13.40, 13.20, 13.00, 12.85,
62  12.70, 12.60, 12.50, 12.40, 12.30, 12.20, 12.10, 12.00,
63  11.90, 11.80, 11.75, 11.70, 11.64, 11.53, 11.41, 11.31,
64  11.22, 11.13, 11.05, 10.97, 10.89, 10.82, 10.75, 10.68,
65  10.61, 10.54, 10.48, 10.41, 10.35, 10.28, 10.22, 10.16,
66  10.13, 10.10, 10.08, 10.05, 10.02, 9.99, 9.96, 9.93,
67  9.90, 9.87, 9.84, 9.80
68 };
69 
71 {
72  1500.00, // was 0.
73  248.20, 93.38, 55.26, 44.50, 41.33, 38.48, 37.20, 35.98,
74  35.02, 34.47, 32.48, 30.76, 29.46, 28.53, 27.84, 27.20,
75  26.53, 25.95, 25.59, 25.46, 25.00, 24.49, 24.08, 23.86,
76  23.17, 22.70, 21.88, 21.48, 20.22, 19.75, 18.97, 18.39,
77  17.98, 17.63, 17.21, 16.72, 16.68, 16.58, 16.42, 16.22,
78  15.98, 15.71, 15.42, 15.14, 14.87, 14.65, 14.44, 14.26,
79  14.10, 13.95, 13.80, 13.64, 13.47, 13.29, 13.09, 12.89,
80  12.68, 12.47, 12.27, 12.06, 11.84, 11.76, 11.69, 11.60,
81  11.50, 11.41, 11.29, 11.17, 11.06, 10.93, 10.81, 10.68,
82  10.56, 10.44, 10.33, 10.21, 10.12, 10.03, 9.96, 9.89,
83  9.83, 9.80, 9.77, 9.75, 9.74, 9.74, 9.74, 9.76,
84  9.73, 9.70, 9.68, 9.65, 9.63, 9.60, 9.57, 9.55,
85  9.52, 9.49, 9.46, 9.43
86 };
87 
88 
90 {
91  // Cross-sections are available in the range (_eMin,_eMax)
92 
93  _eMin = _eMinTable * GeV;
95  if (_eMin < _lowLimit)
96  throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - Low energy limit not valid");
97  if (_highLimit > _eMax)
98  throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - High energy limit not valid");
100 
101  _eMin = G4Exp(G4Log(_eMinTable)-_eStepLog)*GeV;
102  if (_eMin < _lowLimit)
103  throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - Low energy limit not valid");
105 
106  G4int i;
107  for (i=0; i<tableSize; i++)
108  {
110  pp->PutValue(i,value);
111  value = npTable[i] * millibarn;
112  np->PutValue(i,value);
113  }
116 }
117 
118 
120 {
123 }
124 
125 
127 {
128  return (this == (G4XNNElasticLowE *) &right);
129 }
130 
131 
133 {
134 
135  return (this != (G4XNNElasticLowE *) &right);
136 }
137 
138 
140 {
141  G4double sigma = 0.;
142  G4double sqrtS = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag();
143  G4bool dummy = false;
144 
145  const G4ParticleDefinition * key = FindKeyParticle(trk1,trk2);
146 
147  typedef std::map <const G4ParticleDefinition *, G4PhysicsVector*, std::less<const G4ParticleDefinition *> > StringPhysMap;
148 
149  if (xMap.find(key)!= xMap.end())
150  {
151 
152  StringPhysMap::const_iterator iter;
153  for (iter = xMap.begin(); iter != xMap.end(); ++iter)
154  {
155  const G4ParticleDefinition * str = (*iter).first;
156  if (str == key)
157  {
158  G4PhysicsVector* physVector = (*iter).second;
159  // G4PhysicsVector* physVector = xMap[key];
160  if (sqrtS >= _eMin && sqrtS <= _eMax)
161  {
162  sigma = physVector->GetValue(sqrtS,dummy);
163  } else if ( sqrtS < _eMin )
164  {
165  sigma = physVector->GetValue(_eMin,dummy);
166  }
167  //G4cout << " sqrtS / sigma " << sqrtS/GeV << " / " <<
168  // sigma/millibarn << G4endl;
169  }
170  }
171  }
172  return sigma;
173 }
174 
175 
177 {
178  // Dump the pp cross-section table
179 
180  G4cout << Name() << ", pp cross-section: " << G4endl;
181 
182  G4bool dummy = false;
183  G4int i;
185  G4PhysicsVector* pp = 0;
186 
187  typedef std::map <const G4ParticleDefinition *, G4PhysicsVector*, std::less<const G4ParticleDefinition *> > StringPhysMap;
188  StringPhysMap::const_iterator iter;
189 
190  for (iter = xMap.begin(); iter != xMap.end(); ++iter)
191  {
192  const G4ParticleDefinition * str = (*iter).first;
193  if (str == key)
194  {
195  pp = (*iter).second;
196  }
197  }
198 
199  if (pp != 0)
200  {
201  for (i=0; i<tableSize; i++)
202  {
203  G4double e = pp->GetLowEdgeEnergy(i);
204  G4double sigma = pp->GetValue(e,dummy) / millibarn;
205  G4cout << i << ") e = " << e / GeV << " GeV ---- Cross section = " << sigma << " mb " << G4endl;
206  }
207  }
208 
209  // Dump the np cross-section table
210 
211  G4cout << Name() << ", np cross-section: " << G4endl;
212 
214  G4PhysicsVector* np = 0;
215  for (iter = xMap.begin(); iter != xMap.end(); ++iter)
216  {
217  const G4ParticleDefinition * str = (*iter).first;
218  if (str == key)
219  {
220  np = (*iter).second;
221  }
222  }
223 
224  // G4PhysicsVector* np = xMap[G4Neutron::NeutronDefinition()->GetParticleName()];
225 
226  if (np != 0)
227  {
228  for (i=0; i<tableSize; i++)
229  {
230  G4double e = np->GetLowEdgeEnergy(i);
231  G4double sigma = np->GetValue(e,dummy) / millibarn;
232  G4cout << i << ") e = " << e / GeV << " GeV ---- Cross section = " << sigma << " mb " << G4endl;
233  }
234  }
236 }
237 
238 
240 {
241  G4String name("NNElasticLowE");
242  return name;
243 }
244 
245 
246 
248 {
249  G4bool answer = InLimits(e,_lowLimit,_highLimit);
250 
251  return answer;
252 }
253 
254