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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 // INCL++ intra-nuclear cascade model 26 // INCL++ intra-nuclear cascade model 27 // Alain Boudard, CEA-Saclay, France 27 // Alain Boudard, CEA-Saclay, France 28 // Joseph Cugnon, University of Liege, Belgium 28 // Joseph Cugnon, University of Liege, Belgium 29 // Jean-Christophe David, CEA-Saclay, France 29 // Jean-Christophe David, CEA-Saclay, France 30 // Pekka Kaitaniemi, CEA-Saclay, France, and H 30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland 31 // Sylvie Leray, CEA-Saclay, France 31 // Sylvie Leray, CEA-Saclay, France 32 // Davide Mancusi, CEA-Saclay, France 32 // Davide Mancusi, CEA-Saclay, France 33 // 33 // 34 #define INCLXX_IN_GEANT4_MODE 1 34 #define INCLXX_IN_GEANT4_MODE 1 35 35 36 #include "globals.hh" 36 #include "globals.hh" 37 37 38 /** \file G4INCLNuclearPotentialIsospin.cc 38 /** \file G4INCLNuclearPotentialIsospin.cc 39 * \brief Isospin-dependent nuclear potential. 39 * \brief Isospin-dependent nuclear potential. 40 * 40 * 41 * Provides an isospin-dependent nuclear poten 41 * Provides an isospin-dependent nuclear potential. 42 * 42 * 43 * \date 28 February 2011 43 * \date 28 February 2011 44 * \author Davide Mancusi 44 * \author Davide Mancusi 45 */ 45 */ 46 46 47 #include "G4INCLNuclearPotentialIsospin.hh" 47 #include "G4INCLNuclearPotentialIsospin.hh" 48 #include "G4INCLNuclearPotentialConstant.hh" 48 #include "G4INCLNuclearPotentialConstant.hh" 49 #include "G4INCLParticleTable.hh" 49 #include "G4INCLParticleTable.hh" 50 #include "G4INCLGlobals.hh" 50 #include "G4INCLGlobals.hh" 51 51 52 namespace G4INCL { 52 namespace G4INCL { 53 53 54 namespace NuclearPotential { 54 namespace NuclearPotential { 55 55 56 // Constructors 56 // Constructors 57 NuclearPotentialIsospin::NuclearPotentialI 57 NuclearPotentialIsospin::NuclearPotentialIsospin(const G4int A, const G4int Z, const G4bool aPionPotential) 58 : INuclearPotential(A, Z, aPionPotential 58 : INuclearPotential(A, Z, aPionPotential) 59 { 59 { 60 initialize(); 60 initialize(); 61 } 61 } 62 62 63 // Destructor 63 // Destructor 64 NuclearPotentialIsospin::~NuclearPotential 64 NuclearPotentialIsospin::~NuclearPotentialIsospin() {} 65 65 66 void NuclearPotentialIsospin::initialize() 66 void NuclearPotentialIsospin::initialize() { 67 const G4double ZOverA = ((G4double) theZ 67 const G4double ZOverA = ((G4double) theZ) / ((G4double) theA); 68 68 69 const G4double mp = ParticleTable::getIN 69 const G4double mp = ParticleTable::getINCLMass(Proton); 70 const G4double mn = ParticleTable::getIN 70 const G4double mn = ParticleTable::getINCLMass(Neutron); 71 const G4double ml = ParticleTable::getIN << 72 71 73 const G4double theFermiMomentum = Partic 72 const G4double theFermiMomentum = ParticleTable::getFermiMomentum(theA,theZ); 74 73 75 fermiMomentum[Proton] = theFermiMomentum 74 fermiMomentum[Proton] = theFermiMomentum * Math::pow13(2.*ZOverA); 76 const G4double theProtonFermiEnergy = st 75 const G4double theProtonFermiEnergy = std::sqrt(fermiMomentum[Proton]*fermiMomentum[Proton] + mp*mp) - mp; 77 fermiEnergy[Proton] = theProtonFermiEner 76 fermiEnergy[Proton] = theProtonFermiEnergy; 78 // Use separation energies from the Part 77 // Use separation energies from the ParticleTable 79 const G4double theProtonSeparationEnergy 78 const G4double theProtonSeparationEnergy = ParticleTable::getSeparationEnergy(Proton,theA,theZ); 80 separationEnergy[Proton] = theProtonSepa 79 separationEnergy[Proton] = theProtonSeparationEnergy; 81 vProton = theProtonFermiEnergy + theProt 80 vProton = theProtonFermiEnergy + theProtonSeparationEnergy; 82 81 83 fermiMomentum[Neutron] = theFermiMomentu 82 fermiMomentum[Neutron] = theFermiMomentum * Math::pow13(2.*(1.-ZOverA)); 84 const G4double theNeutronFermiEnergy = s 83 const G4double theNeutronFermiEnergy = std::sqrt(fermiMomentum[Neutron]*fermiMomentum[Neutron] + mn*mn) - mn; 85 fermiEnergy[Neutron] = theNeutronFermiEn 84 fermiEnergy[Neutron] = theNeutronFermiEnergy; 86 // Use separation energies from the Part 85 // Use separation energies from the ParticleTable 87 const G4double theNeutronSeparationEnerg 86 const G4double theNeutronSeparationEnergy = ParticleTable::getSeparationEnergy(Neutron,theA,theZ); 88 separationEnergy[Neutron] = theNeutronSe 87 separationEnergy[Neutron] = theNeutronSeparationEnergy; 89 vNeutron = theNeutronFermiEnergy + theNe 88 vNeutron = theNeutronFermiEnergy + theNeutronSeparationEnergy; 90 89 91 const G4double separationEnergyDeltaPlus 90 const G4double separationEnergyDeltaPlusPlus = 2.*theProtonSeparationEnergy - theNeutronSeparationEnergy; 92 separationEnergy[DeltaPlusPlus] = separa 91 separationEnergy[DeltaPlusPlus] = separationEnergyDeltaPlusPlus; 93 separationEnergy[DeltaPlus] = theProtonS 92 separationEnergy[DeltaPlus] = theProtonSeparationEnergy; 94 separationEnergy[DeltaZero] = theNeutron 93 separationEnergy[DeltaZero] = theNeutronSeparationEnergy; 95 const G4double separationEnergyDeltaMinu 94 const G4double separationEnergyDeltaMinus = 2.*theNeutronSeparationEnergy - theProtonSeparationEnergy; 96 separationEnergy[DeltaMinus] = separatio 95 separationEnergy[DeltaMinus] = separationEnergyDeltaMinus; 97 96 98 const G4double tinyMargin = 1E-7; 97 const G4double tinyMargin = 1E-7; 99 vDeltaPlus = vProton; 98 vDeltaPlus = vProton; 100 vDeltaZero = vNeutron; 99 vDeltaZero = vNeutron; 101 vDeltaPlusPlus = std::max(separationEner 100 vDeltaPlusPlus = std::max(separationEnergyDeltaPlusPlus + tinyMargin, 2.*vDeltaPlus - vDeltaZero); 102 vDeltaMinus = std::max(separationEnergyD 101 vDeltaMinus = std::max(separationEnergyDeltaMinus + tinyMargin, 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 << 118 102 119 separationEnergy[PiPlus] = theProtonSepa 103 separationEnergy[PiPlus] = theProtonSeparationEnergy - theNeutronSeparationEnergy; 120 separationEnergy[PiZero] = 0.; 104 separationEnergy[PiZero] = 0.; 121 separationEnergy[PiMinus] = theNeutronSe 105 separationEnergy[PiMinus] = theNeutronSeparationEnergy - theProtonSeparationEnergy; 122 106 123 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 << 138 separationEnergy[KShort] = (theNeutro << 139 separationEnergy[KLong] = (theNeutronS << 140 << 141 separationEnergy[antiProton] = theant << 142 << 143 fermiEnergy[DeltaPlusPlus] = vDeltaPlusP 107 fermiEnergy[DeltaPlusPlus] = vDeltaPlusPlus - separationEnergy[DeltaPlusPlus]; 144 fermiEnergy[DeltaPlus] = vDeltaPlus - se 108 fermiEnergy[DeltaPlus] = vDeltaPlus - separationEnergy[DeltaPlus]; 145 fermiEnergy[DeltaZero] = vDeltaZero - se 109 fermiEnergy[DeltaZero] = vDeltaZero - separationEnergy[DeltaZero]; 146 fermiEnergy[DeltaMinus] = vDeltaMinus - 110 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 - << 159 111 160 INCL_DEBUG("Table of separation energies 112 INCL_DEBUG("Table of separation energies [MeV] for A=" << theA << ", Z=" << theZ << ":" << '\n' 161 << " proton: " << separationEner 113 << " proton: " << separationEnergy[Proton] << '\n' 162 << " neutron: " << separationEner 114 << " neutron: " << separationEnergy[Neutron] << '\n' 163 << " delta++: " << separationEner 115 << " delta++: " << separationEnergy[DeltaPlusPlus] << '\n' 164 << " delta+: " << separationEner 116 << " delta+: " << separationEnergy[DeltaPlus] << '\n' 165 << " delta0: " << separationEner 117 << " delta0: " << separationEnergy[DeltaZero] << '\n' 166 << " delta-: " << separationEner 118 << " delta-: " << separationEnergy[DeltaMinus] << '\n' 167 << " pi+: " << separationEner 119 << " pi+: " << separationEnergy[PiPlus] << '\n' 168 << " pi0: " << separationEner 120 << " pi0: " << separationEnergy[PiZero] << '\n' 169 << " pi-: " << separationEner 121 << " pi-: " << separationEnergy[PiMinus] << '\n' 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 ); 122 ); 185 123 186 INCL_DEBUG("Table of Fermi energies [MeV 124 INCL_DEBUG("Table of Fermi energies [MeV] for A=" << theA << ", Z=" << theZ << ":" << '\n' 187 << " proton: " << fermiEnergy[Pr 125 << " proton: " << fermiEnergy[Proton] << '\n' 188 << " neutron: " << fermiEnergy[Ne 126 << " neutron: " << fermiEnergy[Neutron] << '\n' 189 << " delta++: " << fermiEnergy[De 127 << " delta++: " << fermiEnergy[DeltaPlusPlus] << '\n' 190 << " delta+: " << fermiEnergy[De 128 << " delta+: " << fermiEnergy[DeltaPlus] << '\n' 191 << " delta0: " << fermiEnergy[De 129 << " delta0: " << fermiEnergy[DeltaZero] << '\n' 192 << " delta-: " << fermiEnergy[De 130 << " delta-: " << fermiEnergy[DeltaMinus] << '\n' 193 << " lambda: " << fermiEnergy[La << 194 << " sigma+: " << fermiEnergy[Si << 195 << " sigma0: " << fermiEnergy[Si << 196 << " sigma-: " << fermiEnergy[Si << 197 ); 131 ); 198 132 199 INCL_DEBUG("Table of Fermi momenta [MeV/ 133 INCL_DEBUG("Table of Fermi momenta [MeV/c] for A=" << theA << ", Z=" << theZ << ":" << '\n' 200 << " proton: " << fermiMomentum[ 134 << " proton: " << fermiMomentum[Proton] << '\n' 201 << " neutron: " << fermiMomentum[ 135 << " neutron: " << fermiMomentum[Neutron] << '\n' 202 ); 136 ); 203 } 137 } 204 138 205 G4double NuclearPotentialIsospin::computeP 139 G4double NuclearPotentialIsospin::computePotentialEnergy(const Particle *particle) const { 206 140 207 switch( particle->getType() ) 141 switch( particle->getType() ) 208 { 142 { 209 case Proton: 143 case Proton: 210 return vProton; 144 return vProton; 211 break; 145 break; 212 case Neutron: 146 case Neutron: 213 return vNeutron; 147 return vNeutron; 214 break; 148 break; 215 149 216 case PiPlus: 150 case PiPlus: 217 case PiZero: 151 case PiZero: 218 case PiMinus: 152 case PiMinus: 219 return computePionPotentialEnergy(pa 153 return computePionPotentialEnergy(particle); 220 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; 154 break; 284 155 285 case DeltaPlusPlus: 156 case DeltaPlusPlus: 286 return vDeltaPlusPlus; 157 return vDeltaPlusPlus; 287 break; 158 break; 288 case DeltaPlus: 159 case DeltaPlus: 289 return vDeltaPlus; 160 return vDeltaPlus; 290 break; 161 break; 291 case DeltaZero: 162 case DeltaZero: 292 return vDeltaZero; 163 return vDeltaZero; 293 break; 164 break; 294 case DeltaMinus: 165 case DeltaMinus: 295 return vDeltaMinus; 166 return vDeltaMinus; 296 break; 167 break; 297 case Composite: 168 case Composite: 298 INCL_ERROR("No potential computed for partic 169 INCL_ERROR("No potential computed for particle of type Cluster."); 299 return 0.0; 170 return 0.0; 300 break; 171 break; 301 case UnknownParticle: 172 case UnknownParticle: 302 INCL_ERROR("Trying to compute potential ener 173 INCL_ERROR("Trying to compute potential energy for an unknown particle."); 303 return 0.0; 174 return 0.0; 304 break; 175 break; 305 } 176 } 306 177 307 INCL_ERROR("There is no potential for th 178 INCL_ERROR("There is no potential for this type of particle."); 308 return 0.0; 179 return 0.0; 309 } 180 } 310 181 311 } 182 } 312 } 183 } 313 184 314 185