#include <G4LESigmaPlusInelastic.hh>
Inheritance diagram for G4LESigmaPlusInelastic:
Public Member Functions | |
G4LESigmaPlusInelastic () | |
~G4LESigmaPlusInelastic () | |
G4HadFinalState * | ApplyYourself (const G4HadProjectile &aTrack, G4Nucleus &targetNucleus) |
virtual void | ModelDescription (std::ostream &outFile) const |
Definition at line 45 of file G4LESigmaPlusInelastic.hh.
G4LESigmaPlusInelastic::G4LESigmaPlusInelastic | ( | ) | [inline] |
Definition at line 49 of file G4LESigmaPlusInelastic.hh.
References G4cout, G4endl, G4HadronicInteraction::SetMaxEnergy(), and G4HadronicInteraction::SetMinEnergy().
00049 : G4InelasticInteraction("G4LESigmaPlusInelastic") 00050 { 00051 SetMinEnergy( 0.0 ); 00052 SetMaxEnergy( 25.*CLHEP::GeV ); 00053 G4cout << "WARNING: model G4LESigmaPlusInelastic is being deprecated and will\n" 00054 << "disappear in Geant4 version 10.0" << G4endl; 00055 }
G4LESigmaPlusInelastic::~G4LESigmaPlusInelastic | ( | ) | [inline] |
G4HadFinalState * G4LESigmaPlusInelastic::ApplyYourself | ( | const G4HadProjectile & | aTrack, | |
G4Nucleus & | targetNucleus | |||
) | [virtual] |
Implements G4HadronicInteraction.
Definition at line 51 of file G4LESigmaPlusInelastic.cc.
References G4InelasticInteraction::CalculateMomenta(), G4Nucleus::Cinema(), G4InelasticInteraction::DoIsotopeCounting(), G4Nucleus::EvaporationEffects(), G4cout, G4endl, G4HadProjectile::Get4Momentum(), G4HadProjectile::GetDefinition(), G4DynamicParticle::GetDefinition(), G4ReactionProduct::GetKineticEnergy(), G4HadProjectile::GetKineticEnergy(), G4HadProjectile::GetMaterial(), G4ReactionProduct::GetMomentum(), G4Material::GetName(), G4ParticleDefinition::GetParticleName(), G4ParticleDefinition::GetPDGMass(), G4FastVector< Type, N >::Initialize(), isAlive, G4InelasticInteraction::isotopeProduction, G4InuclParticleNames::pp, G4Nucleus::ReturnTargetParticle(), G4HadFinalState::SetEnergyChange(), G4ReactionProduct::SetKineticEnergy(), G4ReactionProduct::SetMomentum(), G4HadFinalState::SetMomentumChange(), G4ReactionProduct::SetSide(), G4HadFinalState::SetStatusChange(), G4InelasticInteraction::SetUpChange(), G4HadronicInteraction::theParticleChange, and G4HadronicInteraction::verboseLevel.
00053 { 00054 const G4HadProjectile *originalIncident = &aTrack; 00055 if (originalIncident->GetKineticEnergy()<= 0.1*MeV) { 00056 theParticleChange.SetStatusChange(isAlive); 00057 theParticleChange.SetEnergyChange(aTrack.GetKineticEnergy()); 00058 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit()); 00059 return &theParticleChange; 00060 } 00061 00062 // create the target particle 00063 G4DynamicParticle* originalTarget = targetNucleus.ReturnTargetParticle(); 00064 00065 if (verboseLevel > 1) { 00066 const G4Material* targetMaterial = aTrack.GetMaterial(); 00067 G4cout << "G4LESigmaPlusInelastic::ApplyYourself called" << G4endl; 00068 G4cout << "kinetic energy = " << originalIncident->GetKineticEnergy()/MeV << "MeV, "; 00069 G4cout << "target material = " << targetMaterial->GetName() << ", "; 00070 G4cout << "target particle = " << originalTarget->GetDefinition()->GetParticleName() 00071 << G4endl; 00072 } 00073 00074 // Fermi motion and evaporation 00075 // As of Geant3, the Fermi energy calculation had not been Done 00076 G4double ek = originalIncident->GetKineticEnergy()/MeV; 00077 G4double amas = originalIncident->GetDefinition()->GetPDGMass()/MeV; 00078 G4ReactionProduct modifiedOriginal; 00079 modifiedOriginal = *originalIncident; 00080 00081 G4double tkin = targetNucleus.Cinema(ek); 00082 ek += tkin; 00083 modifiedOriginal.SetKineticEnergy(ek*MeV); 00084 G4double et = ek + amas; 00085 G4double p = std::sqrt( std::abs((et-amas)*(et+amas)) ); 00086 G4double pp = modifiedOriginal.GetMomentum().mag()/MeV; 00087 if (pp > 0.0) { 00088 G4ThreeVector momentum = modifiedOriginal.GetMomentum(); 00089 modifiedOriginal.SetMomentum( momentum * (p/pp) ); 00090 } 00091 00092 // calculate black track energies 00093 tkin = targetNucleus.EvaporationEffects( ek ); 00094 ek -= tkin; 00095 modifiedOriginal.SetKineticEnergy( ek*MeV ); 00096 et = ek + amas; 00097 p = std::sqrt( std::abs((et-amas)*(et+amas)) ); 00098 pp = modifiedOriginal.GetMomentum().mag()/MeV; 00099 if (pp > 0.0) { 00100 G4ThreeVector momentum = modifiedOriginal.GetMomentum(); 00101 modifiedOriginal.SetMomentum( momentum * (p/pp) ); 00102 } 00103 G4ReactionProduct currentParticle = modifiedOriginal; 00104 G4ReactionProduct targetParticle; 00105 targetParticle = *originalTarget; 00106 currentParticle.SetSide( 1 ); // incident always goes in forward hemisphere 00107 targetParticle.SetSide( -1 ); // target always goes in backward hemisphere 00108 G4bool incidentHasChanged = false; 00109 G4bool targetHasChanged = false; 00110 G4bool quasiElastic = false; 00111 G4FastVector<G4ReactionProduct,GHADLISTSIZE> vec; // vec will contain the secondary particles 00112 G4int vecLen = 0; 00113 vec.Initialize(0); 00114 00115 const G4double cutOff = 0.1; 00116 if (currentParticle.GetKineticEnergy()/MeV > cutOff) 00117 Cascade(vec, vecLen, originalIncident, currentParticle, targetParticle, 00118 incidentHasChanged, targetHasChanged, quasiElastic); 00119 00120 CalculateMomenta(vec, vecLen, originalIncident, originalTarget, 00121 modifiedOriginal, targetNucleus, currentParticle, 00122 targetParticle, incidentHasChanged, targetHasChanged, 00123 quasiElastic); 00124 00125 SetUpChange(vec, vecLen, currentParticle, targetParticle, incidentHasChanged); 00126 00127 if (isotopeProduction) DoIsotopeCounting(originalIncident, targetNucleus); 00128 00129 delete originalTarget; 00130 return &theParticleChange; 00131 }
void G4LESigmaPlusInelastic::ModelDescription | ( | std::ostream & | outFile | ) | const [virtual] |
Reimplemented from G4HadronicInteraction.
Definition at line 37 of file G4LESigmaPlusInelastic.cc.
00038 { 00039 outFile << "G4LESigmaPlusInelastic is one of the Low Energy Parameterized\n" 00040 << "(LEP) models used to implement inelastic Sigma+ scattering\n" 00041 << "from nuclei. It is a re-engineered version of the GHEISHA\n" 00042 << "code of H. Fesefeldt. It divides the initial collision\n" 00043 << "products into backward- and forward-going clusters which are\n" 00044 << "then decayed into final state hadrons. The model does not\n" 00045 << "conserve energy on an event-by-event basis. It may be\n" 00046 << "applied to Sigma+ with initial energies between 0 and 25\n" 00047 << "GeV.\n"; 00048 }