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25 // 25 //
26 // 26 //
27 // 27 //
28 // by V. Lara 28 // by V. Lara
29 // ------------------------------------------- 29 // --------------------------------------------------------------------
30 30
31 #include "G4StatMFMicroPartition.hh" 31 #include "G4StatMFMicroPartition.hh"
32 #include "G4PhysicalConstants.hh" 32 #include "G4PhysicalConstants.hh"
33 #include "G4SystemOfUnits.hh" 33 #include "G4SystemOfUnits.hh"
34 #include "G4HadronicException.hh" 34 #include "G4HadronicException.hh"
35 #include "Randomize.hh" 35 #include "Randomize.hh"
36 #include "G4Log.hh" 36 #include "G4Log.hh"
37 #include "G4Exp.hh" 37 #include "G4Exp.hh"
38 #include "G4Pow.hh" 38 #include "G4Pow.hh"
39 39
40 // Copy constructor 40 // Copy constructor
41 G4StatMFMicroPartition::G4StatMFMicroPartition 41 G4StatMFMicroPartition::G4StatMFMicroPartition(const G4StatMFMicroPartition & )
42 { 42 {
43 throw G4HadronicException(__FILE__, __LINE__ 43 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMicroPartition::copy_constructor meant to not be accessible");
44 } 44 }
45 45
46 // Operators 46 // Operators
47 47
48 G4StatMFMicroPartition & G4StatMFMicroPartitio 48 G4StatMFMicroPartition & G4StatMFMicroPartition::
49 operator=(const G4StatMFMicroPartition & ) 49 operator=(const G4StatMFMicroPartition & )
50 { 50 {
51 throw G4HadronicException(__FILE__, __LINE__ 51 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMicroPartition::operator= meant to not be accessible");
52 return *this; 52 return *this;
53 } 53 }
54 54
55 55
56 G4bool G4StatMFMicroPartition::operator==(cons 56 G4bool G4StatMFMicroPartition::operator==(const G4StatMFMicroPartition & ) const
57 { 57 {
58 //throw G4HadronicException(__FILE__, __LINE 58 //throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMicroPartition::operator== meant to not be accessible");
59 return false; 59 return false;
60 } 60 }
61 61
62 62
63 G4bool G4StatMFMicroPartition::operator!=(cons 63 G4bool G4StatMFMicroPartition::operator!=(const G4StatMFMicroPartition & ) const
64 { 64 {
65 //throw G4HadronicException(__FILE__, __LINE 65 //throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMicroPartition::operator!= meant to not be accessible");
66 return true; 66 return true;
67 } 67 }
68 68
69 void G4StatMFMicroPartition::CoulombFreeEnergy 69 void G4StatMFMicroPartition::CoulombFreeEnergy(G4int anA)
70 { 70 {
71 // This Z independent factor in the Coulomb 71 // This Z independent factor in the Coulomb free energy
72 G4double CoulombConstFactor = G4StatMFParam 72 G4double CoulombConstFactor = G4StatMFParameters::GetCoulomb();
73 73
74 // We use the aproximation Z_f ~ Z/A * A_f 74 // We use the aproximation Z_f ~ Z/A * A_f
75 75
76 G4double ZA = G4double(theZ)/G4double(theA); 76 G4double ZA = G4double(theZ)/G4double(theA);
77 77
78 if (anA == 0 || anA == 1) 78 if (anA == 0 || anA == 1)
79 { 79 {
80 _theCoulombFreeEnergy.push_back(CoulombC 80 _theCoulombFreeEnergy.push_back(CoulombConstFactor*ZA*ZA);
81 } 81 }
82 else if (anA == 2 || anA == 3 || anA == 4) 82 else if (anA == 2 || anA == 3 || anA == 4)
83 { 83 {
84 // Z/A ~ 1/2 84 // Z/A ~ 1/2
85 _theCoulombFreeEnergy.push_back(CoulombC 85 _theCoulombFreeEnergy.push_back(CoulombConstFactor*0.5
86 *anA*G4Pow::GetInstance()->Z23(a 86 *anA*G4Pow::GetInstance()->Z23(anA));
87 } 87 }
88 else // anA > 4 88 else // anA > 4
89 { 89 {
90 _theCoulombFreeEnergy.push_back(CoulombC 90 _theCoulombFreeEnergy.push_back(CoulombConstFactor*ZA*ZA
91 *anA*G4Pow::GetInstance()->Z23(a 91 *anA*G4Pow::GetInstance()->Z23(anA));
92 } 92 }
93 } 93 }
94 94
95 G4double G4StatMFMicroPartition::GetCoulombEne 95 G4double G4StatMFMicroPartition::GetCoulombEnergy(void)
96 { 96 {
97 G4Pow* g4calc = G4Pow::GetInstance(); 97 G4Pow* g4calc = G4Pow::GetInstance();
98 G4double CoulombFactor = 1.0/g4calc->A13(1. 98 G4double CoulombFactor = 1.0/g4calc->A13(1.0+G4StatMFParameters::GetKappaCoulomb());
99 99
100 G4double CoulombEnergy = elm_coupling*0.6*th 100 G4double CoulombEnergy = elm_coupling*0.6*theZ*theZ*CoulombFactor/
101 (G4StatMFParameters::Getr0()*g4calc->Z13(t 101 (G4StatMFParameters::Getr0()*g4calc->Z13(theA));
102 102
103 G4double ZA = G4double(theZ)/G4double(theA); 103 G4double ZA = G4double(theZ)/G4double(theA);
104 for (unsigned int i = 0; i < _thePartition.s 104 for (unsigned int i = 0; i < _thePartition.size(); i++)
105 CoulombEnergy += _theCoulombFreeEnergy[i] 105 CoulombEnergy += _theCoulombFreeEnergy[i] - elm_coupling*0.6*
106 ZA*ZA*_thePartition[i]*g4calc->Z23(_theP 106 ZA*ZA*_thePartition[i]*g4calc->Z23(_thePartition[i])/
107 G4StatMFParameters::Getr0(); 107 G4StatMFParameters::Getr0();
108 108
109 return CoulombEnergy; 109 return CoulombEnergy;
110 } 110 }
111 111
112 G4double G4StatMFMicroPartition::GetPartitionE 112 G4double G4StatMFMicroPartition::GetPartitionEnergy(G4double T)
113 { 113 {
114 G4Pow* g4calc = G4Pow::GetInstance(); 114 G4Pow* g4calc = G4Pow::GetInstance();
115 G4double CoulombFactor = 1.0/g4calc->A13(1. 115 G4double CoulombFactor = 1.0/g4calc->A13(1.0+G4StatMFParameters::GetKappaCoulomb());
116 116
117 G4double PartitionEnergy = 0.0; 117 G4double PartitionEnergy = 0.0;
118 118
119 // We use the aprox that Z_f ~ Z/A * A_f 119 // We use the aprox that Z_f ~ Z/A * A_f
120 for (unsigned int i = 0; i < _thePartition.s 120 for (unsigned int i = 0; i < _thePartition.size(); i++)
121 { 121 {
122 if (_thePartition[i] == 0 || _thePartiti 122 if (_thePartition[i] == 0 || _thePartition[i] == 1)
123 { 123 {
124 PartitionEnergy += _theCoulombFreeEn 124 PartitionEnergy += _theCoulombFreeEnergy[i];
125 } 125 }
126 else if (_thePartition[i] == 2) 126 else if (_thePartition[i] == 2)
127 { 127 {
128 PartitionEnergy += 128 PartitionEnergy +=
129 -2.796 // Binding Energy of deuter 129 -2.796 // Binding Energy of deuteron ??????
130 + _theCoulombFreeEnergy[i]; 130 + _theCoulombFreeEnergy[i];
131 } 131 }
132 else if (_thePartition[i] == 3) 132 else if (_thePartition[i] == 3)
133 { 133 {
134 PartitionEnergy += 134 PartitionEnergy +=
135 -9.224 // Binding Energy of trtion 135 -9.224 // Binding Energy of trtion/He3 ??????
136 + _theCoulombFreeEnergy[i]; 136 + _theCoulombFreeEnergy[i];
137 } 137 }
138 else if (_thePartition[i] == 4) 138 else if (_thePartition[i] == 4)
139 { 139 {
140 PartitionEnergy += 140 PartitionEnergy +=
141 -30.11 // Binding Energy of ALPHA 141 -30.11 // Binding Energy of ALPHA ??????
142 + _theCoulombFreeEnergy[i] 142 + _theCoulombFreeEnergy[i]
143 + 4.*T*T/InvLevelDensity(4.); 143 + 4.*T*T/InvLevelDensity(4.);
144 } 144 }
145 else 145 else
146 { 146 {
147 PartitionEnergy += 147 PartitionEnergy +=
148 //Volume term 148 //Volume term
149 (- G4StatMFParameters::GetE0() + 149 (- G4StatMFParameters::GetE0() +
150 T*T/InvLevelDensity(_thePartition 150 T*T/InvLevelDensity(_thePartition[i]))
151 *_thePartition[i] + 151 *_thePartition[i] +
152 152
153 // Symmetry term 153 // Symmetry term
154 G4StatMFParameters::GetGamma0()* 154 G4StatMFParameters::GetGamma0()*
155 (1.0-2.0*theZ/theA)*(1.0-2.0*theZ/ 155 (1.0-2.0*theZ/theA)*(1.0-2.0*theZ/theA)*_thePartition[i] +
156 156
157 // Surface term 157 // Surface term
158 (G4StatMFParameters::Beta(T) - T*G 158 (G4StatMFParameters::Beta(T) - T*G4StatMFParameters::DBetaDT(T))*
159 g4calc->Z23(_thePartition[i]) + 159 g4calc->Z23(_thePartition[i]) +
160 160
161 // Coulomb term 161 // Coulomb term
162 _theCoulombFreeEnergy[i]; 162 _theCoulombFreeEnergy[i];
163 } 163 }
164 } 164 }
165 165
166 PartitionEnergy += elm_coupling*0.6*theZ*the 166 PartitionEnergy += elm_coupling*0.6*theZ*theZ*CoulombFactor/
167 (G4StatMFParameters::Getr0()*g4calc->Z13(t 167 (G4StatMFParameters::Getr0()*g4calc->Z13(theA))
168 + 1.5*T*(_thePartition.size()-1); 168 + 1.5*T*(_thePartition.size()-1);
169 169
170 return PartitionEnergy; 170 return PartitionEnergy;
171 } 171 }
172 172
173 G4double G4StatMFMicroPartition::CalcPartition 173 G4double G4StatMFMicroPartition::CalcPartitionTemperature(G4double U,
174 G4double FreeInternalE0) 174 G4double FreeInternalE0)
175 { 175 {
176 G4double PartitionEnergy = GetPartitionEnerg 176 G4double PartitionEnergy = GetPartitionEnergy(0.0);
177 177
178 // If this happens, T = 0 MeV, which means t 178 // If this happens, T = 0 MeV, which means that probability for this
179 // partition will be 0 179 // partition will be 0
180 if (std::fabs(U + FreeInternalE0 - Partition 180 if (std::fabs(U + FreeInternalE0 - PartitionEnergy) < 0.003) return -1.0;
181 181
182 // Calculate temperature by midpoint method 182 // Calculate temperature by midpoint method
183 183
184 // Bracketing the solution 184 // Bracketing the solution
185 G4double Ta = 0.001; 185 G4double Ta = 0.001;
186 G4double Tb = std::max(std::sqrt(8.0*U/theA) 186 G4double Tb = std::max(std::sqrt(8.0*U/theA),0.0012*MeV);
187 G4double Tmid = 0.0; 187 G4double Tmid = 0.0;
188 188
189 G4double Da = (U + FreeInternalE0 - GetParti 189 G4double Da = (U + FreeInternalE0 - GetPartitionEnergy(Ta))/U;
190 G4double Db = (U + FreeInternalE0 - GetParti 190 G4double Db = (U + FreeInternalE0 - GetPartitionEnergy(Tb))/U;
191 191
192 G4int maxit = 0; 192 G4int maxit = 0;
193 // Loop checking, 05-Aug-2015, Vladimir Ivan 193 // Loop checking, 05-Aug-2015, Vladimir Ivanchenko
194 while (Da*Db > 0.0 && maxit < 1000) 194 while (Da*Db > 0.0 && maxit < 1000)
195 { 195 {
196 ++maxit; 196 ++maxit;
197 Tb += 0.5*Tb; 197 Tb += 0.5*Tb;
198 Db = (U + FreeInternalE0 - GetPartitionE 198 Db = (U + FreeInternalE0 - GetPartitionEnergy(Tb))/U;
199 } 199 }
200 200
201 G4double eps = 1.0e-14*std::abs(Ta-Tb); 201 G4double eps = 1.0e-14*std::abs(Ta-Tb);
202 202
203 for (G4int i = 0; i < 1000; i++) 203 for (G4int i = 0; i < 1000; i++)
204 { 204 {
205 Tmid = (Ta+Tb)/2.0; 205 Tmid = (Ta+Tb)/2.0;
206 if (std::fabs(Ta-Tb) <= eps) return Tmid 206 if (std::fabs(Ta-Tb) <= eps) return Tmid;
207 G4double Dmid = (U + FreeInternalE0 - Ge 207 G4double Dmid = (U + FreeInternalE0 - GetPartitionEnergy(Tmid))/U;
208 if (std::fabs(Dmid) < 0.003) return Tmid 208 if (std::fabs(Dmid) < 0.003) return Tmid;
209 if (Da*Dmid < 0.0) 209 if (Da*Dmid < 0.0)
210 { 210 {
211 Tb = Tmid; 211 Tb = Tmid;
212 Db = Dmid; 212 Db = Dmid;
213 } 213 }
214 else 214 else
215 { 215 {
216 Ta = Tmid; 216 Ta = Tmid;
217 Da = Dmid; 217 Da = Dmid;
218 } 218 }
219 } 219 }
220 // if we arrive here the temperature could n 220 // if we arrive here the temperature could not be calculated
221 G4cout << "G4StatMFMicroPartition::CalcParti 221 G4cout << "G4StatMFMicroPartition::CalcPartitionTemperature: I can't calculate the temperature"
222 << G4endl; 222 << G4endl;
223 // and set probability to 0 returning T < 0 223 // and set probability to 0 returning T < 0
224 return -1.0; 224 return -1.0;
225 225
226 } 226 }
227 227
228 G4double G4StatMFMicroPartition::CalcPartition 228 G4double G4StatMFMicroPartition::CalcPartitionProbability(G4double U,
229 G4double FreeInternalE0, 229 G4double FreeInternalE0,
230 G4double SCompound) 230 G4double SCompound)
231 { 231 {
232 G4double T = CalcPartitionTemperature(U,Free 232 G4double T = CalcPartitionTemperature(U,FreeInternalE0);
233 if ( T <= 0.0) return _Probability = 0.0; 233 if ( T <= 0.0) return _Probability = 0.0;
234 _Temperature = T; 234 _Temperature = T;
235 235
236 G4Pow* g4calc = G4Pow::GetInstance(); 236 G4Pow* g4calc = G4Pow::GetInstance();
237 237
238 // Factorial of fragment multiplicity 238 // Factorial of fragment multiplicity
239 G4double Fact = 1.0; 239 G4double Fact = 1.0;
240 unsigned int i; 240 unsigned int i;
241 for (i = 0; i < _thePartition.size() - 1; i+ 241 for (i = 0; i < _thePartition.size() - 1; i++)
242 { 242 {
243 G4double f = 1.0; 243 G4double f = 1.0;
244 for (unsigned int ii = i+1; i< _theParti 244 for (unsigned int ii = i+1; i< _thePartition.size(); i++)
245 { 245 {
246 if (_thePartition[i] == _thePartitio 246 if (_thePartition[i] == _thePartition[ii]) f++;
247 } 247 }
248 Fact *= f; 248 Fact *= f;
249 } 249 }
250 250
251 G4double ProbDegeneracy = 1.0; 251 G4double ProbDegeneracy = 1.0;
252 G4double ProbA32 = 1.0; 252 G4double ProbA32 = 1.0;
253 253
254 for (i = 0; i < _thePartition.size(); i++) 254 for (i = 0; i < _thePartition.size(); i++)
255 { 255 {
256 ProbDegeneracy *= GetDegeneracyFactor(_t 256 ProbDegeneracy *= GetDegeneracyFactor(_thePartition[i]);
257 ProbA32 *= _thePartition[i]*std::sqrt((G 257 ProbA32 *= _thePartition[i]*std::sqrt((G4double)_thePartition[i]);
258 } 258 }
259 259
260 // Compute entropy 260 // Compute entropy
261 G4double PartitionEntropy = 0.0; 261 G4double PartitionEntropy = 0.0;
262 for (i = 0; i < _thePartition.size(); i++) 262 for (i = 0; i < _thePartition.size(); i++)
263 { 263 {
264 // interaction entropy for alpha 264 // interaction entropy for alpha
265 if (_thePartition[i] == 4) 265 if (_thePartition[i] == 4)
266 { 266 {
267 PartitionEntropy += 267 PartitionEntropy +=
268 2.0*T*_thePartition[i]/InvLevelDen 268 2.0*T*_thePartition[i]/InvLevelDensity(_thePartition[i]);
269 } 269 }
270 // interaction entropy for Af > 4 270 // interaction entropy for Af > 4
271 else if (_thePartition[i] > 4) 271 else if (_thePartition[i] > 4)
272 { 272 {
273 PartitionEntropy += 273 PartitionEntropy +=
274 2.0*T*_thePartition[i]/InvLevelDen 274 2.0*T*_thePartition[i]/InvLevelDensity(_thePartition[i])
275 - G4StatMFParameters::DBetaDT(T) * 275 - G4StatMFParameters::DBetaDT(T) * g4calc->Z23(_thePartition[i]);
276 } 276 }
277 } 277 }
278 278
279 // Thermal Wave Lenght = std::sqrt(2 pi hbar 279 // Thermal Wave Lenght = std::sqrt(2 pi hbar^2 / nucleon_mass T)
280 G4double ThermalWaveLenght3 = 16.15*fermi/st 280 G4double ThermalWaveLenght3 = 16.15*fermi/std::sqrt(T);
281 ThermalWaveLenght3 = ThermalWaveLenght3*Ther 281 ThermalWaveLenght3 = ThermalWaveLenght3*ThermalWaveLenght3*ThermalWaveLenght3;
282 282
283 // Translational Entropy 283 // Translational Entropy
284 G4double kappa = 1. + elm_coupling*(g4calc-> << 284 G4double kappa = 1. + elm_coupling*(g4calc->Z13(_thePartition.size())-1.0)
285 /(G4StatMFParameters::Getr 285 /(G4StatMFParameters::Getr0()*g4calc->Z13(theA));
286 kappa = kappa*kappa*kappa; 286 kappa = kappa*kappa*kappa;
287 kappa -= 1.; 287 kappa -= 1.;
288 G4double V0 = (4./3.)*pi*theA*G4StatMFParame 288 G4double V0 = (4./3.)*pi*theA*G4StatMFParameters::Getr0()*G4StatMFParameters::Getr0()*
289 G4StatMFParameters::Getr0(); 289 G4StatMFParameters::Getr0();
290 G4double FreeVolume = kappa*V0; 290 G4double FreeVolume = kappa*V0;
291 G4double TranslationalS = std::max(0.0, G4Lo 291 G4double TranslationalS = std::max(0.0, G4Log(ProbA32/Fact) +
292 (_thePartition.size()-1.0)*G4Log(FreeVol 292 (_thePartition.size()-1.0)*G4Log(FreeVolume/ThermalWaveLenght3) +
293 1.5*(_thePartition.size()-1.0) - 1.5*g4c 293 1.5*(_thePartition.size()-1.0) - 1.5*g4calc->logZ(theA));
294 294
295 PartitionEntropy += G4Log(ProbDegeneracy) + 295 PartitionEntropy += G4Log(ProbDegeneracy) + TranslationalS;
296 _Entropy = PartitionEntropy; 296 _Entropy = PartitionEntropy;
297 297
298 // And finally compute probability of fragme 298 // And finally compute probability of fragment configuration
299 G4double exponent = PartitionEntropy-SCompou 299 G4double exponent = PartitionEntropy-SCompound;
300 if (exponent > 300.0) exponent = 300.0; 300 if (exponent > 300.0) exponent = 300.0;
301 return _Probability = G4Exp(exponent); 301 return _Probability = G4Exp(exponent);
302 } 302 }
303 303
304 G4double G4StatMFMicroPartition::GetDegeneracy 304 G4double G4StatMFMicroPartition::GetDegeneracyFactor(G4int A)
305 { 305 {
306 // Degeneracy factors are statistical factor 306 // Degeneracy factors are statistical factors
307 // DegeneracyFactor for nucleon is (2S_n + 1 307 // DegeneracyFactor for nucleon is (2S_n + 1)(2I_n + 1) = 4
308 G4double DegFactor = 0; 308 G4double DegFactor = 0;
309 if (A > 4) DegFactor = 1.0; 309 if (A > 4) DegFactor = 1.0;
310 else if (A == 1) DegFactor = 4.0; // nuc 310 else if (A == 1) DegFactor = 4.0; // nucleon
311 else if (A == 2) DegFactor = 3.0; // Deu 311 else if (A == 2) DegFactor = 3.0; // Deuteron
312 else if (A == 3) DegFactor = 4.0; // Tri 312 else if (A == 3) DegFactor = 4.0; // Triton + He3
313 else if (A == 4) DegFactor = 1.0; // alp 313 else if (A == 4) DegFactor = 1.0; // alpha
314 return DegFactor; 314 return DegFactor;
315 } 315 }
316 316
317 G4StatMFChannel * G4StatMFMicroPartition::Choo 317 G4StatMFChannel * G4StatMFMicroPartition::ChooseZ(G4int A0, G4int Z0, G4double MeanT)
318 // Gives fragments charges 318 // Gives fragments charges
319 { 319 {
320 std::vector<G4int> FragmentsZ; 320 std::vector<G4int> FragmentsZ;
321 321
322 G4int ZBalance = 0; 322 G4int ZBalance = 0;
323 do 323 do
324 { 324 {
325 G4double CC = G4StatMFParameters::GetGam 325 G4double CC = G4StatMFParameters::GetGamma0()*8.0;
326 G4int SumZ = 0; 326 G4int SumZ = 0;
327 for (unsigned int i = 0; i < _thePartiti 327 for (unsigned int i = 0; i < _thePartition.size(); i++)
328 { 328 {
329 G4double ZMean; 329 G4double ZMean;
330 G4double Af = _thePartition[i]; 330 G4double Af = _thePartition[i];
331 if (Af > 1.5 && Af < 4.5) ZMean = 0. 331 if (Af > 1.5 && Af < 4.5) ZMean = 0.5*Af;
332 else ZMean = Af*Z0/A0; 332 else ZMean = Af*Z0/A0;
333 G4double ZDispersion = std::sqrt(Af 333 G4double ZDispersion = std::sqrt(Af * MeanT/CC);
334 G4int Zf; 334 G4int Zf;
335 do 335 do
336 { 336 {
337 Zf = static_cast<G4int>(G4RandGa 337 Zf = static_cast<G4int>(G4RandGauss::shoot(ZMean,ZDispersion));
338 } 338 }
339 // Loop checking, 05-Aug-2015, Vladi 339 // Loop checking, 05-Aug-2015, Vladimir Ivanchenko
340 while (Zf < 0 || Zf > Af); 340 while (Zf < 0 || Zf > Af);
341 FragmentsZ.push_back(Zf); 341 FragmentsZ.push_back(Zf);
342 SumZ += Zf; 342 SumZ += Zf;
343 } 343 }
344 ZBalance = Z0 - SumZ; 344 ZBalance = Z0 - SumZ;
345 } 345 }
346 // Loop checking, 05-Aug-2015, Vladimir Ivan 346 // Loop checking, 05-Aug-2015, Vladimir Ivanchenko
347 while (std::abs(ZBalance) > 1); 347 while (std::abs(ZBalance) > 1);
348 FragmentsZ[0] += ZBalance; 348 FragmentsZ[0] += ZBalance;
349 349
350 G4StatMFChannel * theChannel = new G4StatMFC 350 G4StatMFChannel * theChannel = new G4StatMFChannel;
351 for (unsigned int i = 0; i < _thePartition.s 351 for (unsigned int i = 0; i < _thePartition.size(); i++)
352 { 352 {
353 theChannel->CreateFragment(_thePartition 353 theChannel->CreateFragment(_thePartition[i],FragmentsZ[i]);
354 } 354 }
355 355
356 return theChannel; 356 return theChannel;
357 } 357 }
358 358