#include <G4LEPionPlusInelastic.hh>
Inheritance diagram for G4LEPionPlusInelastic:
Public Member Functions | |
G4LEPionPlusInelastic (const G4String &name="G4LEPionPlusInelastic") | |
~G4LEPionPlusInelastic () | |
G4HadFinalState * | ApplyYourself (const G4HadProjectile &aTrack, G4Nucleus &targetNucleus) |
virtual void | ModelDescription (std::ostream &outFile) const |
Definition at line 43 of file G4LEPionPlusInelastic.hh.
G4LEPionPlusInelastic::G4LEPionPlusInelastic | ( | const G4String & | name = "G4LEPionPlusInelastic" |
) |
Definition at line 41 of file G4LEPionPlusInelastic.cc.
References G4cout, G4endl, G4HadronicInteraction::SetMaxEnergy(), and G4HadronicInteraction::SetMinEnergy().
00042 :G4InelasticInteraction(name) 00043 { 00044 SetMinEnergy(0.0); 00045 SetMaxEnergy(55.*GeV); 00046 G4cout << "WARNING: model G4LEPionPlusInelastic is being deprecated and will\n" 00047 << "disappear in Geant4 version 10.0" << G4endl; 00048 }
G4LEPionPlusInelastic::~G4LEPionPlusInelastic | ( | ) | [inline] |
G4HadFinalState * G4LEPionPlusInelastic::ApplyYourself | ( | const G4HadProjectile & | aTrack, | |
G4Nucleus & | targetNucleus | |||
) | [virtual] |
Implements G4HadronicInteraction.
Definition at line 66 of file G4LEPionPlusInelastic.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.
00068 { 00069 const G4HadProjectile *originalIncident = &aTrack; 00070 if (originalIncident->GetKineticEnergy()<= 0.1*MeV) { 00071 theParticleChange.SetStatusChange(isAlive); 00072 theParticleChange.SetEnergyChange(aTrack.GetKineticEnergy()); 00073 theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit()); 00074 return &theParticleChange; 00075 } 00076 00077 // create the target particle 00078 00079 G4DynamicParticle *originalTarget = targetNucleus.ReturnTargetParticle(); 00080 G4ReactionProduct targetParticle( originalTarget->GetDefinition() ); 00081 00082 if (verboseLevel > 1) { 00083 const G4Material* targetMaterial = aTrack.GetMaterial(); 00084 G4cout << "G4LEPionPlusInelastic::ApplyYourself called" << G4endl; 00085 G4cout << "kinetic energy = " << originalIncident->GetKineticEnergy() << "MeV, "; 00086 G4cout << "target material = " << targetMaterial->GetName() << ", "; 00087 G4cout << "target particle = " << originalTarget->GetDefinition()->GetParticleName() 00088 << G4endl; 00089 } 00090 G4ReactionProduct currentParticle( 00091 const_cast<G4ParticleDefinition *>(originalIncident->GetDefinition() ) ); 00092 currentParticle.SetMomentum( originalIncident->Get4Momentum().vect() ); 00093 currentParticle.SetKineticEnergy( originalIncident->GetKineticEnergy() ); 00094 00095 // Fermi motion and evaporation 00096 // As of Geant3, the Fermi energy calculation had not been Done 00097 G4double ek = originalIncident->GetKineticEnergy(); 00098 G4double amas = originalIncident->GetDefinition()->GetPDGMass(); 00099 00100 G4double tkin = targetNucleus.Cinema(ek); 00101 ek += tkin; 00102 currentParticle.SetKineticEnergy(ek); 00103 G4double et = ek + amas; 00104 G4double p = std::sqrt( std::abs((et-amas)*(et+amas)) ); 00105 G4double pp = currentParticle.GetMomentum().mag(); 00106 if (pp > 0.0) { 00107 G4ThreeVector momentum = currentParticle.GetMomentum(); 00108 currentParticle.SetMomentum( momentum * (p/pp) ); 00109 } 00110 00111 // calculate black track energies 00112 tkin = targetNucleus.EvaporationEffects(ek); 00113 ek -= tkin; 00114 currentParticle.SetKineticEnergy(ek); 00115 et = ek + amas; 00116 p = std::sqrt( std::abs((et-amas)*(et+amas)) ); 00117 pp = currentParticle.GetMomentum().mag(); 00118 if (pp > 0.0) { 00119 G4ThreeVector momentum = currentParticle.GetMomentum(); 00120 currentParticle.SetMomentum( momentum * (p/pp) ); 00121 } 00122 00123 G4ReactionProduct modifiedOriginal = currentParticle; 00124 00125 currentParticle.SetSide(1); // incident always goes in forward hemisphere 00126 targetParticle.SetSide(-1); // target always goes in backward hemisphere 00127 G4bool incidentHasChanged = false; 00128 G4bool targetHasChanged = false; 00129 G4bool quasiElastic = false; 00130 G4FastVector<G4ReactionProduct,GHADLISTSIZE> vec; // vec will contain the secondary particles 00131 G4int vecLen = 0; 00132 vec.Initialize(0); 00133 00134 const G4double cutOff = 0.1*MeV; 00135 if (currentParticle.GetKineticEnergy() > cutOff) 00136 Cascade(vec, vecLen, originalIncident, currentParticle, targetParticle, 00137 incidentHasChanged, targetHasChanged, quasiElastic); 00138 00139 CalculateMomenta(vec, vecLen, 00140 originalIncident, originalTarget, modifiedOriginal, 00141 targetNucleus, currentParticle, targetParticle, 00142 incidentHasChanged, targetHasChanged, quasiElastic); 00143 00144 SetUpChange(vec, vecLen, currentParticle, targetParticle, incidentHasChanged); 00145 00146 if (isotopeProduction) DoIsotopeCounting(originalIncident, targetNucleus); 00147 00148 delete originalTarget; 00149 return &theParticleChange; 00150 }
void G4LEPionPlusInelastic::ModelDescription | ( | std::ostream & | outFile | ) | const [virtual] |
Reimplemented from G4HadronicInteraction.
Definition at line 51 of file G4LEPionPlusInelastic.cc.
00052 { 00053 outFile << "G4LEPionPlusInelastic is one of the Low Energy Parameterized\n" 00054 << "(LEP) models used to implement inelastic pi+ scattering\n" 00055 << "from nuclei. It is a re-engineered version of the GHEISHA\n" 00056 << "code of H. Fesefeldt. It divides the initial collision\n" 00057 << "products into backward- and forward-going clusters which are\n" 00058 << "then decayed into final state hadrons. The model does not\n" 00059 << "conserve energy on an event-by-event basis. It may be\n" 00060 << "applied to pions with initial energies between 0 and 25\n" 00061 << "GeV.\n"; 00062 }