#include <G4LEAntiSigmaMinusInelastic.hh>
Inheritance diagram for G4LEAntiSigmaMinusInelastic:
Public Member Functions | |
G4LEAntiSigmaMinusInelastic () | |
~G4LEAntiSigmaMinusInelastic () | |
G4HadFinalState * | ApplyYourself (const G4HadProjectile &aTrack, G4Nucleus &targetNucleus) |
virtual void | ModelDescription (std::ostream &outFile) const |
Definition at line 45 of file G4LEAntiSigmaMinusInelastic.hh.
G4LEAntiSigmaMinusInelastic::G4LEAntiSigmaMinusInelastic | ( | ) | [inline] |
Definition at line 49 of file G4LEAntiSigmaMinusInelastic.hh.
References G4cout, G4endl, G4HadronicInteraction::SetMaxEnergy(), and G4HadronicInteraction::SetMinEnergy().
00049 : G4InelasticInteraction("G4LEAntiSigmaMinusInelastic") 00050 { 00051 SetMinEnergy(0.0); 00052 SetMaxEnergy(25.*CLHEP::GeV); 00053 G4cout << "WARNING: model G4LEAntiSigmaMinusInelastic is being deprecated and will\n" 00054 << "disappear in Geant4 version 10.0" << G4endl; 00055 }
G4LEAntiSigmaMinusInelastic::~G4LEAntiSigmaMinusInelastic | ( | ) | [inline] |
G4HadFinalState * G4LEAntiSigmaMinusInelastic::ApplyYourself | ( | const G4HadProjectile & | aTrack, | |
G4Nucleus & | targetNucleus | |||
) | [virtual] |
Implements G4HadronicInteraction.
Definition at line 53 of file G4LEAntiSigmaMinusInelastic.cc.
References G4InelasticInteraction::CalculateMomenta(), G4Nucleus::Cinema(), G4InelasticInteraction::DoIsotopeCounting(), G4Nucleus::EvaporationEffects(), G4cout, G4endl, G4UniformRand, G4HadProjectile::Get4Momentum(), G4HadProjectile::GetDefinition(), G4DynamicParticle::GetDefinition(), G4ReactionProduct::GetKineticEnergy(), G4HadProjectile::GetKineticEnergy(), G4HadProjectile::GetMaterial(), G4ReactionProduct::GetMomentum(), G4Material::GetName(), G4ParticleDefinition::GetParticleName(), G4ParticleDefinition::GetPDGMass(), G4ReactionProduct::GetTotalMomentum(), 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.
00055 { 00056 const G4HadProjectile *originalIncident = &aTrack; 00057 if (originalIncident->GetKineticEnergy()<= 0.1*MeV) { 00058 theParticleChange.SetStatusChange(isAlive); 00059 theParticleChange.SetEnergyChange(aTrack.GetKineticEnergy()); 00060 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit()); 00061 return &theParticleChange; 00062 } 00063 00064 // create the target particle 00065 G4DynamicParticle* originalTarget = targetNucleus.ReturnTargetParticle(); 00066 00067 if (verboseLevel > 1) { 00068 const G4Material *targetMaterial = aTrack.GetMaterial(); 00069 G4cout << "G4LEAntiSigmaMinusInelastic::ApplyYourself called" << G4endl; 00070 G4cout << "kinetic energy = " << originalIncident->GetKineticEnergy()/MeV << "MeV, "; 00071 G4cout << "target material = " << targetMaterial->GetName() << ", "; 00072 G4cout << "target particle = " << originalTarget->GetDefinition()->GetParticleName() 00073 << G4endl; 00074 } 00075 00076 // Fermi motion and evaporation 00077 // As of Geant3, the Fermi energy calculation had not been Done 00078 G4double ek = originalIncident->GetKineticEnergy()/MeV; 00079 G4double amas = originalIncident->GetDefinition()->GetPDGMass()/MeV; 00080 G4ReactionProduct modifiedOriginal; 00081 modifiedOriginal = *originalIncident; 00082 00083 G4double tkin = targetNucleus.Cinema( ek ); 00084 ek += tkin; 00085 modifiedOriginal.SetKineticEnergy( ek*MeV ); 00086 G4double et = ek + amas; 00087 G4double p = std::sqrt( std::abs((et-amas)*(et+amas)) ); 00088 G4double pp = modifiedOriginal.GetMomentum().mag()/MeV; 00089 if (pp > 0.0) { 00090 G4ThreeVector momentum = modifiedOriginal.GetMomentum(); 00091 modifiedOriginal.SetMomentum( momentum * (p/pp) ); 00092 } 00093 00094 // calculate black track energies 00095 tkin = targetNucleus.EvaporationEffects( ek ); 00096 ek -= tkin; 00097 modifiedOriginal.SetKineticEnergy( ek*MeV ); 00098 et = ek + amas; 00099 p = std::sqrt( std::abs((et-amas)*(et+amas)) ); 00100 pp = modifiedOriginal.GetMomentum().mag()/MeV; 00101 if (pp > 0.0) { 00102 G4ThreeVector momentum = modifiedOriginal.GetMomentum(); 00103 modifiedOriginal.SetMomentum( momentum * (p/pp) ); 00104 } 00105 G4ReactionProduct currentParticle = modifiedOriginal; 00106 G4ReactionProduct targetParticle; 00107 targetParticle = *originalTarget; 00108 currentParticle.SetSide( 1 ); // incident always goes in forward hemisphere 00109 targetParticle.SetSide( -1 ); // target always goes in backward hemisphere 00110 G4bool incidentHasChanged = false; 00111 G4bool targetHasChanged = false; 00112 G4bool quasiElastic = false; 00113 G4FastVector<G4ReactionProduct,GHADLISTSIZE> vec; // vec will contain the secondary particles 00114 G4int vecLen = 0; 00115 vec.Initialize(0); 00116 00117 const G4double cutOff = 0.1; 00118 const G4double anni = std::min( 1.3*currentParticle.GetTotalMomentum()/GeV, 0.4 ); 00119 if ((currentParticle.GetKineticEnergy()/MeV > cutOff) || 00120 (G4UniformRand() > anni) ) 00121 Cascade(vec, vecLen, originalIncident, currentParticle, targetParticle, 00122 incidentHasChanged, targetHasChanged, quasiElastic); 00123 00124 CalculateMomenta(vec, vecLen, originalIncident, originalTarget, 00125 modifiedOriginal, targetNucleus, currentParticle, 00126 targetParticle, incidentHasChanged, targetHasChanged, 00127 quasiElastic); 00128 00129 SetUpChange(vec, vecLen, currentParticle, targetParticle, incidentHasChanged); 00130 00131 if (isotopeProduction) DoIsotopeCounting(originalIncident, targetNucleus); 00132 00133 delete originalTarget; 00134 return &theParticleChange; 00135 }
void G4LEAntiSigmaMinusInelastic::ModelDescription | ( | std::ostream & | outFile | ) | const [virtual] |
Reimplemented from G4HadronicInteraction.
Definition at line 38 of file G4LEAntiSigmaMinusInelastic.cc.
00039 { 00040 outFile << "G4LEAntiSigmaMinusInelastic is one of the Low Energy\n" 00041 << "Parameterized (LEP) models used to implement inelastic\n" 00042 << "antiSigma- scattering from nuclei. It is a re-engineered\n" 00043 << "version of the GHEISHA code of H. Fesefeldt. It divides the\n" 00044 << "initial collision products into backward- and forward-going\n" 00045 << "clusters which are then decayed into final state hadrons. The\n" 00046 << "model does not conserve energy on an event-by-event basis. It\n" 00047 << "may be applied to antiSigma- with initial energies between 0\n" 00048 << "and 25 GeV.\n"; 00049 }