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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 
39 const G4double G4XNNElasticLowE::_lowLimit = 0.;
40 const G4double G4XNNElasticLowE::_highLimit = 3.*GeV;
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;
45 const G4double G4XNNElasticLowE::_eStepLog = 0.01;
46 
47 // Cross-sections in mb
48 // Units are assigned when filling the PhysicsVector
49 
50 const G4int G4XNNElasticLowE::tableSize = 101;
51 
52 const G4double G4XNNElasticLowE::ppTable[101] =
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 
70 const G4double G4XNNElasticLowE::npTable[101] =
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;
94  _eMax = G4Exp(G4Log(_eMinTable) + tableSize * _eStepLog) * 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");
99  G4PhysicsVector* pp = new G4PhysicsLnVector(_eMin,_eMax,tableSize);
100 
101  _eMin = G4Exp(G4Log(_eMinTable)-_eStepLog)*GeV;
102  if (_eMin < _lowLimit)
103  throw G4HadronicException(__FILE__, __LINE__, "G4XNNElasticLowE::G4XNNElasticLowE - Low energy limit not valid");
104  G4PhysicsVector* np = new G4PhysicsLnVector(_eMin,_eMax,tableSize);
105 
106  G4int i;
107  for (i=0; i<tableSize; i++)
108  {
109  G4double value = ppTable[i] * millibarn;
110  pp->PutValue(i,value);
111  value = npTable[i] * millibarn;
112  np->PutValue(i,value);
113  }
114  xMap[G4Proton::ProtonDefinition()] = pp;
115  xMap[G4Neutron::NeutronDefinition()] = np;
116 }
117 
118 
120 {
121  delete xMap[G4Proton::ProtonDefinition()];
122  delete xMap[G4Neutron::NeutronDefinition()];
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 
const XML_Char * name
Definition: expat.h:151
const G4ParticleDefinition * FindKeyParticle(const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
G4double GetValue(G4double theEnergy, G4bool &isOutRange) const
G4bool operator==(const G4XNNElasticLowE &right) const
virtual G4double CrossSection(const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
static G4Proton * ProtonDefinition()
Definition: G4Proton.cc:88
G4double GetLowEdgeEnergy(size_t binNumber) const
int G4int
Definition: G4Types.hh:78
virtual ~G4XNNElasticLowE()
G4GLOB_DLL std::ostream G4cout
const XML_Char int const XML_Char * value
Definition: expat.h:331
bool G4bool
Definition: G4Types.hh:79
void PutValue(size_t index, G4double theValue)
G4double G4Log(G4double x)
Definition: G4Log.hh:230
G4double G4Exp(G4double initial_x)
Exponential Function double precision.
Definition: G4Exp.hh:183
virtual void Print() const
virtual G4bool IsValid(G4double e) const
virtual void Print() const
static constexpr double GeV
Definition: G4SIunits.hh:217
#define G4endl
Definition: G4ios.hh:61
virtual G4String Name() const
double G4double
Definition: G4Types.hh:76
G4bool operator!=(const G4XNNElasticLowE &right) const
const G4LorentzVector & Get4Momentum() const
static G4Neutron * NeutronDefinition()
Definition: G4Neutron.cc:99
G4PhysicsLogVector G4PhysicsLnVector
static constexpr double millibarn
Definition: G4SIunits.hh:106
G4bool InLimits(G4double e, G4double eLow, G4double eHigh) const