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59 initialize(); 61 } 60 } 62 61 63 // Destructor 62 // Destructor 64 NuclearPotentialIsospin::~NuclearPotential 63 NuclearPotentialIsospin::~NuclearPotentialIsospin() {} 65 64 66 void NuclearPotentialIsospin::initialize() 65 void NuclearPotentialIsospin::initialize() { 67 const G4double ZOverA = ((G4double) theZ 66 const G4double ZOverA = ((G4double) theZ) / ((G4double) theA); 68 67 69 const G4double mp = ParticleTable::getIN 68 const G4double mp = ParticleTable::getINCLMass(Proton); 70 const G4double mn = ParticleTable::getIN 69 const G4double mn = ParticleTable::getINCLMass(Neutron); 71 const G4double ml = ParticleTable::getIN << 72 70 73 const G4double theFermiMomentum = Partic << 71 G4double theFermiMomentum; >> 72 if(theA<ParticleTable::clusterTableASize && theZ<ParticleTable::clusterTableZSize) >> 73 // Use momentum RMS from tables to define the Fermi momentum for light >> 74 // nuclei >> 75 theFermiMomentum = Math::sqrtFiveThirds * ParticleTable::getMomentumRMS(theA,theZ); >> 76 else >> 77 theFermiMomentum = PhysicalConstants::Pf; 74 78 75 fermiMomentum[Proton] = theFermiMomentum 79 fermiMomentum[Proton] = theFermiMomentum * Math::pow13(2.*ZOverA); 76 const G4double theProtonFermiEnergy = st 80 const G4double theProtonFermiEnergy = std::sqrt(fermiMomentum[Proton]*fermiMomentum[Proton] + mp*mp) - mp; 77 fermiEnergy[Proton] = theProtonFermiEner 81 fermiEnergy[Proton] = theProtonFermiEnergy; 78 // Use separation energies from the Part 82 // Use separation energies from the ParticleTable 79 const G4double theProtonSeparationEnergy 83 const G4double theProtonSeparationEnergy = ParticleTable::getSeparationEnergy(Proton,theA,theZ); 80 separationEnergy[Proton] = theProtonSepa 84 separationEnergy[Proton] = theProtonSeparationEnergy; 81 vProton = theProtonFermiEnergy + theProt 85 vProton = theProtonFermiEnergy + theProtonSeparationEnergy; 82 86 83 fermiMomentum[Neutron] = theFermiMomentu 87 fermiMomentum[Neutron] = theFermiMomentum * Math::pow13(2.*(1.-ZOverA)); 84 const G4double theNeutronFermiEnergy = s 88 const G4double theNeutronFermiEnergy = std::sqrt(fermiMomentum[Neutron]*fermiMomentum[Neutron] + mn*mn) - mn; 85 fermiEnergy[Neutron] = theNeutronFermiEn 89 fermiEnergy[Neutron] = theNeutronFermiEnergy; 86 // Use separation energies from the Part 90 // Use separation energies from the ParticleTable 87 const G4double theNeutronSeparationEnerg 91 const G4double theNeutronSeparationEnergy = ParticleTable::getSeparationEnergy(Neutron,theA,theZ); 88 separationEnergy[Neutron] = theNeutronSe 92 separationEnergy[Neutron] = theNeutronSeparationEnergy; 89 vNeutron = theNeutronFermiEnergy + theNe 93 vNeutron = theNeutronFermiEnergy + theNeutronSeparationEnergy; 90 94 91 const G4double separationEnergyDeltaPlus << 92 separationEnergy[DeltaPlusPlus] = separa << 93 separationEnergy[DeltaPlus] = theProtonS << 94 separationEnergy[DeltaZero] = theNeutron << 95 const G4double separationEnergyDeltaMinu << 96 separationEnergy[DeltaMinus] = separatio << 97 << 98 const G4double tinyMargin = 1E-7; << 99 vDeltaPlus = vProton; 95 vDeltaPlus = vProton; 100 vDeltaZero = vNeutron; 96 vDeltaZero = vNeutron; 101 vDeltaPlusPlus = std::max(separationEner << 97 vDeltaPlusPlus = 2.*vDeltaPlus - vDeltaZero; 102 vDeltaMinus = std::max(separationEnergyD << 98 vDeltaMinus = 2.*vDeltaZero - vDeltaPlus; 103 << 104 vSigmaMinus = -16.; // Repulsive potenti << 105 vSigmaZero = -16.; // hypothesis: same << 106 vSigmaPlus = -16.; << 107 << 108 vLambda = 30.; << 109 vantiProton = 100.; << 110 << 111 const G4double asy = (theA - 2.*theZ)/th << 112 // Jose Luis Rodriguez-Sanchez et al., R << 113 if (asy > 0.236) vLambda = 40.91; << 114 else if (asy > 0.133) vLambda = 56.549 - << 115 << 116 const G4double theLambdaSeparationEnergy << 117 const G4double theantiProtonSeparationEn << 118 << 119 separationEnergy[PiPlus] = theProtonSepa << 120 separationEnergy[PiZero] = 0.; << 121 separationEnergy[PiMinus] = theNeutronSe << 122 << 123 separationEnergy[Eta] = 0.; << 124 separationEnergy[Omega] = 0.; << 125 separationEnergy[EtaPrime] = 0.; << 126 separationEnergy[Photon] = 0.; << 127 << 128 separationEnergy[Lambda] = theLambdaS << 129 separationEnergy[SigmaPlus] = theProtonS << 130 separationEnergy[SigmaZero] = theLambdaS << 131 separationEnergy[SigmaMinus] = theNeutr << 132 << 133 separationEnergy[KPlus] = theProtonSep << 134 separationEnergy[KZero] = (theNeutronS << 135 separationEnergy[KZeroBar] = (theLambda << 136 separationEnergy[KMinus] = 2.*theNeut << 137 99 138 separationEnergy[KShort] = (theNeutro << 100 separationEnergy[DeltaPlusPlus] = 2.*theProtonSeparationEnergy - theNeutronSeparationEnergy; 139 separationEnergy[KLong] = (theNeutronS << 101 separationEnergy[DeltaPlus] = theProtonSeparationEnergy; 140 << 102 separationEnergy[DeltaZero] = theNeutronSeparationEnergy; 141 separationEnergy[antiProton] = theant << 103 separationEnergy[DeltaMinus] = 2.*theNeutronSeparationEnergy - theProtonSeparationEnergy; 142 104 143 fermiEnergy[DeltaPlusPlus] = vDeltaPlusP 105 fermiEnergy[DeltaPlusPlus] = vDeltaPlusPlus - separationEnergy[DeltaPlusPlus]; 144 fermiEnergy[DeltaPlus] = vDeltaPlus - se 106 fermiEnergy[DeltaPlus] = vDeltaPlus - separationEnergy[DeltaPlus]; 145 fermiEnergy[DeltaZero] = vDeltaZero - se 107 fermiEnergy[DeltaZero] = vDeltaZero - separationEnergy[DeltaZero]; 146 fermiEnergy[DeltaMinus] = vDeltaMinus - 108 fermiEnergy[DeltaMinus] = vDeltaMinus - separationEnergy[DeltaMinus]; 147 << 148 fermiEnergy[Lambda] = vLambda - separati << 149 if (fermiEnergy[Lambda] <= 0.) << 150 fermiMomentum[Lambda]=0.; << 151 else << 152 fermiMomentum[Lambda]=std::sqrt(std:: << 153 << 154 fermiEnergy[SigmaPlus] = vSigmaPlus - se << 155 fermiEnergy[SigmaZero] = vSigmaZero - se << 156 fermiEnergy[SigmaMinus] = vSigmaMinus - << 157 << 158 fermiEnergy[antiProton] = vantiProton - << 159 << 160 INCL_DEBUG("Table of separation energies << 161 << " proton: " << separationEner << 162 << " neutron: " << separationEner << 163 << " delta++: " << separationEner << 164 << " delta+: " << separationEner << 165 << " delta0: " << separationEner << 166 << " delta-: " << separationEner << 167 << " pi+: " << separationEner << 168 << " pi0: " << separationEner << 169 << " pi-: " << separationEner << 170 << " eta: " << separationEner << 171 << " omega: " << separationEner << 172 << " etaprime:" << separationEner << 173 << " photon: " << separationEner << 174 << " lambda: " << separationEner << 175 << " sigmaplus: " << separationE << 176 << " sigmazero: " << separationE << 177 << " sigmaminus: " << separation << 178 << " kplus: " << separationEnerg << 179 << " kzero: " << separationEnerg << 180 << " kzerobar: " << separationEn << 181 << " kminus: " << separationEner << 182 << " kshort: " << separationEner << 183 << " klong: " << separationEnerg << 184 ); << 185 << 186 INCL_DEBUG("Table of Fermi energies [MeV << 187 << " proton: " << fermiEnergy[Pr << 188 << " neutron: " << fermiEnergy[Ne << 189 << " delta++: " << fermiEnergy[De << 190 << " delta+: " << fermiEnergy[De << 191 << " delta0: " << fermiEnergy[De << 192 << " delta-: " << fermiEnergy[De << 193 << " lambda: " << fermiEnergy[La << 194 << " sigma+: " << fermiEnergy[Si << 195 << " sigma0: " << fermiEnergy[Si << 196 << " sigma-: " << fermiEnergy[Si << 197 ); << 198 << 199 INCL_DEBUG("Table of Fermi momenta [MeV/ << 200 << " proton: " << fermiMomentum[ << 201 << " neutron: " << fermiMomentum[ << 202 ); << 203 } 109 } 204 110 205 G4double NuclearPotentialIsospin::computeP 111 G4double NuclearPotentialIsospin::computePotentialEnergy(const Particle *particle) const { 206 112 207 switch( particle->getType() ) 113 switch( particle->getType() ) 208 { 114 { 209 case Proton: 115 case Proton: 210 return vProton; 116 return vProton; 211 break; 117 break; 212 case Neutron: 118 case Neutron: 213 return vNeutron; 119 return vNeutron; 214 break; 120 break; 215 121 216 case PiPlus: 122 case PiPlus: 217 case PiZero: 123 case PiZero: 218 case PiMinus: 124 case PiMinus: 219 return computePionPotentialEnergy(pa 125 return computePionPotentialEnergy(particle); 220 break; 126 break; 221 << 222 case SigmaPlus: << 223 return vSigmaPlus; << 224 break; << 225 case SigmaZero: << 226 return vSigmaZero; << 227 break; << 228 case Lambda: << 229 return vLambda; << 230 break; << 231 case SigmaMinus: << 232 return vSigmaMinus; << 233 break; << 234 << 235 case Eta: << 236 case Omega: << 237 case EtaPrime: << 238 return computePionResonancePotential << 239 break; << 240 << 241 case KPlus: << 242 case KZero: << 243 case KZeroBar: << 244 case KMinus: << 245 case KShort: << 246 case KLong: << 247 return computeKaonPotentialEnergy(pa << 248 break; << 249 << 250 case Photon: << 251 return 0.0; << 252 break; << 253 << 254 case antiProton: << 255 return vantiProton; << 256 break; << 257 case antiNeutron: << 258 return vantiProton; << 259 break; << 260 case antiLambda: << 261 return 0.0; << 262 break; << 263 case antiSigmaMinus: << 264 return 0.0; << 265 break; << 266 case antiSigmaPlus: << 267 return 0.0; << 268 break; << 269 case antiSigmaZero: << 270 return 0.0; << 271 break; << 272 case antiXiMinus: << 273 return 0.0; << 274 break; << 275 case antiXiZero: << 276 return 0.0; << 277 break; << 278 case XiMinus: << 279 return 0.0; << 280 break; << 281 case XiZero: << 282 return 0.0; << 283 break; << 284 127 285 case DeltaPlusPlus: 128 case DeltaPlusPlus: 286 return vDeltaPlusPlus; 129 return vDeltaPlusPlus; 287 break; 130 break; 288 case DeltaPlus: 131 case DeltaPlus: 289 return vDeltaPlus; 132 return vDeltaPlus; 290 break; 133 break; 291 case DeltaZero: 134 case DeltaZero: 292 return vDeltaZero; 135 return vDeltaZero; 293 break; 136 break; 294 case DeltaMinus: 137 case DeltaMinus: 295 return vDeltaMinus; 138 return vDeltaMinus; 296 break; 139 break; 297 case Composite: 140 case Composite: 298 INCL_ERROR("No potential computed for partic << 141 ERROR("No potential computed for particle of type Cluster."); 299 return 0.0; 142 return 0.0; 300 break; 143 break; 301 case UnknownParticle: 144 case UnknownParticle: 302 INCL_ERROR("Trying to compute potential ener << 145 ERROR("Trying to compute potential energy for an unknown particle."); 303 return 0.0; 146 return 0.0; 304 break; 147 break; 305 } 148 } 306 149 307 INCL_ERROR("There is no potential for th << 150 ERROR("There is no potential for this type of particle."); 308 return 0.0; 151 return 0.0; 309 } 152 } 310 153 311 } 154 } 312 } 155 } 313 156 314 157