- Timestamp:
- Dec 22, 2010, 3:52:27 PM (14 years ago)
- File:
-
- 1 edited
Legend:
- Unmodified
- Added
- Removed
-
trunk/source/processes/hadronic/models/high_energy/src/G4HEKaonPlusInelastic.cc
r1340 r1347 24 24 // ******************************************************************** 25 25 // 26 // 27 // $Id: G4HEKaonPlusInelastic.cc,v 1.14 2008/03/17 20:49:17 dennis Exp $ 28 // GEANT4 tag $Name: geant4-09-03-ref-09 $ 29 // 26 // $Id: G4HEKaonPlusInelastic.cc,v 1.16 2010/11/29 05:44:44 dennis Exp $ 27 // GEANT4 tag $Name: geant4-09-04-ref-00 $ 30 28 // 31 29 … … 33 31 #include "G4ios.hh" 34 32 35 //36 33 // G4 Process: Gheisha High Energy Collision model. 37 34 // This includes the high energy cascading model, the two-body-resonance model 38 // and the low energy two-body model. Not included are the low energy stuff like39 // nuclear reactions, nuclear fission without any cascading and all processes for40 // p articles at rest.35 // and the low energy two-body model. Not included are the low energy stuff 36 // like nuclear reactions, nuclear fission without any cascading and all 37 // processes for particles at rest. 41 38 // First work done by J.L.Chuma and F.W.Jones, TRIUMF, June 96. 42 39 // H. Fesefeldt, RWTH-Aachen, 23-October-1996 … … 45 42 #include "G4HEKaonPlusInelastic.hh" 46 43 47 G4HadFinalState * G4HEKaonPlusInelastic::48 ApplyYourself( const G4HadProjectile &aTrack, G4Nucleus &targetNucleus ) 49 {50 G4HEVector * pv = new G4HEVector[MAXPART]; 51 const G4HadProjectile *aParticle = &aTrack;52 // G4DynamicParticle *originalTarget = targetNucleus.ReturnTargetParticle();53 54 55 44 G4HadFinalState* 45 G4HEKaonPlusInelastic::ApplyYourself(const G4HadProjectile& aTrack, 46 G4Nucleus& targetNucleus) 47 { 48 G4HEVector* pv = new G4HEVector[MAXPART]; 49 const G4HadProjectile* aParticle = &aTrack; 50 const G4double A = targetNucleus.GetN(); 51 const G4double Z = targetNucleus.GetZ(); 52 G4HEVector incidentParticle(aParticle); 56 53 57 G4double atomicNumber = Z; 58 G4double atomicWeight = A; 59 60 G4int incidentCode = incidentParticle.getCode(); 61 G4double incidentMass = incidentParticle.getMass(); 62 G4double incidentTotalEnergy = incidentParticle.getEnergy(); 63 G4double incidentTotalMomentum = incidentParticle.getTotalMomentum(); 64 G4double incidentKineticEnergy = incidentTotalEnergy - incidentMass; 65 66 if(incidentKineticEnergy < 1.) 67 { 68 G4cout << "GHEKaonPlusInelastic: incident energy < 1 GeV" << G4endl; 69 } 70 if(verboseLevel > 1) 71 { 72 G4cout << "G4HEKaonPlusInelastic::ApplyYourself" << G4endl; 73 G4cout << "incident particle " << incidentParticle.getName() 74 << "mass " << incidentMass 75 << "kinetic energy " << incidentKineticEnergy 76 << G4endl; 77 G4cout << "target material with (A,Z) = (" 78 << atomicWeight << "," << atomicNumber << ")" << G4endl; 79 } 80 81 G4double inelasticity = NuclearInelasticity(incidentKineticEnergy, 82 atomicWeight, atomicNumber); 83 if(verboseLevel > 1) 84 G4cout << "nuclear inelasticity = " << inelasticity << G4endl; 54 G4double atomicNumber = Z; 55 G4double atomicWeight = A; 56 57 G4int incidentCode = incidentParticle.getCode(); 58 G4double incidentMass = incidentParticle.getMass(); 59 G4double incidentTotalEnergy = incidentParticle.getEnergy(); 60 G4double incidentTotalMomentum = incidentParticle.getTotalMomentum(); 61 G4double incidentKineticEnergy = incidentTotalEnergy - incidentMass; 62 63 if (incidentKineticEnergy < 1.) 64 G4cout << "GHEKaonPlusInelastic: incident energy < 1 GeV" << G4endl; 65 66 if (verboseLevel > 1) { 67 G4cout << "G4HEKaonPlusInelastic::ApplyYourself" << G4endl; 68 G4cout << "incident particle " << incidentParticle.getName() 69 << "mass " << incidentMass 70 << "kinetic energy " << incidentKineticEnergy 71 << G4endl; 72 G4cout << "target material with (A,Z) = (" 73 << atomicWeight << "," << atomicNumber << ")" << G4endl; 74 } 75 76 G4double inelasticity = NuclearInelasticity(incidentKineticEnergy, 77 atomicWeight, atomicNumber); 78 if (verboseLevel > 1) 79 G4cout << "nuclear inelasticity = " << inelasticity << G4endl; 85 80 86 81 incidentKineticEnergy -= inelasticity; 87 82 88 89 90 91 G4double excitation= NuclearExcitation(incidentKineticEnergy,92 93 94 95 if(verboseLevel > 1)96 83 G4double excitationEnergyGNP = 0.; 84 G4double excitationEnergyDTA = 0.; 85 86 G4double excitation = NuclearExcitation(incidentKineticEnergy, 87 atomicWeight, atomicNumber, 88 excitationEnergyGNP, 89 excitationEnergyDTA); 90 if (verboseLevel > 1) 91 G4cout << "nuclear excitation = " << excitation << excitationEnergyGNP 97 92 << excitationEnergyDTA << G4endl; 98 93 99 100 incidentKineticEnergy -= excitation; 101 incidentTotalEnergy = incidentKineticEnergy + incidentMass; 102 incidentTotalMomentum = std::sqrt( (incidentTotalEnergy-incidentMass) 103 *(incidentTotalEnergy+incidentMass)); 104 105 106 G4HEVector targetParticle; 107 108 if(G4UniformRand() < atomicNumber/atomicWeight) 109 { 110 targetParticle.setDefinition("Proton"); 111 } 112 else 113 { 114 targetParticle.setDefinition("Neutron"); 115 } 116 117 G4double targetMass = targetParticle.getMass(); 118 G4double centerOfMassEnergy = std::sqrt( incidentMass*incidentMass + targetMass*targetMass 119 + 2.0*targetMass*incidentTotalEnergy); 120 G4double availableEnergy = centerOfMassEnergy - targetMass - incidentMass; 121 122 // this was the meaning of inElastic in the 123 // original Gheisha stand-alone version. 124 // G4bool inElastic = InElasticCrossSectionInFirstInt 125 // (availableEnergy, incidentCode, incidentTotalMomentum); 126 // by unknown reasons, it has been replaced 127 // to the following code in Geant??? 128 G4bool inElastic = true; 129 // if (G4UniformRand() < elasticCrossSection/totalCrossSection) inElastic = false; 130 131 vecLength = 0; 94 incidentKineticEnergy -= excitation; 95 incidentTotalEnergy = incidentKineticEnergy + incidentMass; 96 incidentTotalMomentum = std::sqrt( (incidentTotalEnergy-incidentMass) 97 *(incidentTotalEnergy+incidentMass)); 98 99 G4HEVector targetParticle; 100 101 if (G4UniformRand() < atomicNumber/atomicWeight) { 102 targetParticle.setDefinition("Proton"); 103 } else { 104 targetParticle.setDefinition("Neutron"); 105 } 106 107 G4double targetMass = targetParticle.getMass(); 108 G4double centerOfMassEnergy = std::sqrt(incidentMass*incidentMass 109 + targetMass*targetMass 110 + 2.0*targetMass*incidentTotalEnergy); 111 G4double availableEnergy = centerOfMassEnergy - targetMass - incidentMass; 112 113 G4bool inElastic = true; 114 vecLength = 0; 132 115 133 if(verboseLevel > 1)134 116 if (verboseLevel > 1) 117 G4cout << "ApplyYourself: CallFirstIntInCascade for particle " 135 118 << incidentCode << G4endl; 136 119 137 120 G4bool successful = false; 138 121 139 if(inElastic || (!inElastic && atomicWeight < 1.5)) 140 { 141 FirstIntInCasKaonPlus(inElastic, availableEnergy, pv, vecLength, 142 incidentParticle, targetParticle, atomicWeight); 143 144 if(verboseLevel > 1) 145 G4cout << "ApplyYourself::StrangeParticlePairProduction" << G4endl; 146 147 148 149 if ((vecLength > 0) && (availableEnergy > 1.)) 150 StrangeParticlePairProduction( availableEnergy, centerOfMassEnergy, 151 pv, vecLength, 152 incidentParticle, targetParticle); 153 HighEnergyCascading( successful, pv, vecLength, 154 excitationEnergyGNP, excitationEnergyDTA, 155 incidentParticle, targetParticle, 156 atomicWeight, atomicNumber); 157 if (!successful) 158 HighEnergyClusterProduction( successful, pv, vecLength, 159 excitationEnergyGNP, excitationEnergyDTA, 160 incidentParticle, targetParticle, 161 atomicWeight, atomicNumber); 162 if (!successful) 163 MediumEnergyCascading( successful, pv, vecLength, 164 excitationEnergyGNP, excitationEnergyDTA, 165 incidentParticle, targetParticle, 166 atomicWeight, atomicNumber); 167 168 if (!successful) 169 MediumEnergyClusterProduction( successful, pv, vecLength, 170 excitationEnergyGNP, excitationEnergyDTA, 171 incidentParticle, targetParticle, 172 atomicWeight, atomicNumber); 173 if (!successful) 174 QuasiElasticScattering( successful, pv, vecLength, 175 excitationEnergyGNP, excitationEnergyDTA, 176 incidentParticle, targetParticle, 177 atomicWeight, atomicNumber); 178 } 179 if (!successful) 180 { 181 ElasticScattering( successful, pv, vecLength, 182 incidentParticle, 183 atomicWeight, atomicNumber); 184 } 185 186 if (!successful) 187 { 188 G4cout << "GHEInelasticInteraction::ApplyYourself fails to produce final state particles" << G4endl; 189 } 190 FillParticleChange(pv, vecLength); 191 delete [] pv; 192 theParticleChange.SetStatusChange(stopAndKill); 193 return & theParticleChange; 194 } 122 FirstIntInCasKaonPlus(inElastic, availableEnergy, pv, vecLength, 123 incidentParticle, targetParticle, atomicWeight); 124 125 if (verboseLevel > 1) 126 G4cout << "ApplyYourself::StrangeParticlePairProduction" << G4endl; 127 128 if ((vecLength > 0) && (availableEnergy > 1.)) 129 StrangeParticlePairProduction(availableEnergy, centerOfMassEnergy, 130 pv, vecLength, 131 incidentParticle, targetParticle); 132 133 HighEnergyCascading(successful, pv, vecLength, 134 excitationEnergyGNP, excitationEnergyDTA, 135 incidentParticle, targetParticle, 136 atomicWeight, atomicNumber); 137 if (!successful) 138 HighEnergyClusterProduction(successful, pv, vecLength, 139 excitationEnergyGNP, excitationEnergyDTA, 140 incidentParticle, targetParticle, 141 atomicWeight, atomicNumber); 142 if (!successful) 143 MediumEnergyCascading(successful, pv, vecLength, 144 excitationEnergyGNP, excitationEnergyDTA, 145 incidentParticle, targetParticle, 146 atomicWeight, atomicNumber); 147 148 if (!successful) 149 MediumEnergyClusterProduction(successful, pv, vecLength, 150 excitationEnergyGNP, excitationEnergyDTA, 151 incidentParticle, targetParticle, 152 atomicWeight, atomicNumber); 153 if (!successful) 154 QuasiElasticScattering(successful, pv, vecLength, 155 excitationEnergyGNP, excitationEnergyDTA, 156 incidentParticle, targetParticle, 157 atomicWeight, atomicNumber); 158 if (!successful) 159 ElasticScattering(successful, pv, vecLength, 160 incidentParticle, 161 atomicWeight, atomicNumber); 162 163 if (!successful) 164 G4cout << "GHEInelasticInteraction::ApplyYourself fails to produce final state particles" 165 << G4endl; 166 167 FillParticleChange(pv, vecLength); 168 delete [] pv; 169 theParticleChange.SetStatusChange(stopAndKill); 170 return &theParticleChange; 171 } 172 195 173 196 174 void 197 G4HEKaonPlusInelastic::FirstIntInCasKaonPlus( G4bool &inElastic,198 199 200 G4int &vecLen,201 G4HEVectorincidentParticle,202 G4HEVectortargetParticle,203 175 G4HEKaonPlusInelastic::FirstIntInCasKaonPlus(G4bool& inElastic, 176 const G4double availableEnergy, 177 G4HEVector pv[], 178 G4int& vecLen, 179 const G4HEVector& incidentParticle, 180 const G4HEVector& targetParticle, 181 const G4double atomicWeight) 204 182 205 183 // Kaon+ undergoes interaction with nucleon within a nucleus. Check if it is … … 210 188 // protons/neutrons by kaons or strange baryons according to the average 211 189 // multiplicity per inelastic reaction. 212 213 { 214 static const G4double expxu = std::log(MAXFLOAT); // upper bound for arg. of exp 215 static const G4double expxl = -expxu; // lower bound for arg. of exp 216 217 static const G4double protb = 0.7; 218 static const G4double neutb = 0.7; 219 static const G4double c = 1.25; 220 221 static const G4int numMul = 1200; 222 static const G4int numSec = 60; 223 224 G4int neutronCode = Neutron.getCode(); 225 G4int protonCode = Proton.getCode(); 226 227 G4int targetCode = targetParticle.getCode(); 228 // G4double incidentMass = incidentParticle.getMass(); 229 // G4double incidentEnergy = incidentParticle.getEnergy(); 230 G4double incidentTotalMomentum = incidentParticle.getTotalMomentum(); 231 232 static G4bool first = true; 233 static G4double protmul[numMul], protnorm[numSec]; // proton constants 234 static G4double neutmul[numMul], neutnorm[numSec]; // neutron constants 235 236 // misc. local variables 237 // np = number of pi+, nm = number of pi-, nz = number of pi0 238 239 G4int i, counter, nt, np, nm, nz; 190 { 191 static const G4double expxu = std::log(MAXFLOAT); // upper bound for arg. of exp 192 static const G4double expxl = -expxu; // lower bound for arg. of exp 193 194 static const G4double protb = 0.7; 195 static const G4double neutb = 0.7; 196 static const G4double c = 1.25; 197 198 static const G4int numMul = 1200; 199 static const G4int numSec = 60; 200 201 G4int neutronCode = Neutron.getCode(); 202 G4int protonCode = Proton.getCode(); 203 204 G4int targetCode = targetParticle.getCode(); 205 G4double incidentTotalMomentum = incidentParticle.getTotalMomentum(); 206 207 static G4bool first = true; 208 static G4double protmul[numMul], protnorm[numSec]; // proton constants 209 static G4double neutmul[numMul], neutnorm[numSec]; // neutron constants 210 211 // misc. local variables 212 // np = number of pi+, nm = number of pi-, nz = number of pi0 213 214 G4int i, counter, nt, np, nm, nz; 240 215 241 216 if( first ) 242 { 217 { // compute normalization constants, this will only be done once 243 218 first = false; 244 219 for( i=0; i<numMul; i++ )protmul[i] = 0.0;
Note: See TracChangeset
for help on using the changeset viewer.