G4RPGAntiXiMinusInelastic Class Reference

#include <G4RPGAntiXiMinusInelastic.hh>

Inheritance diagram for G4RPGAntiXiMinusInelastic:

Public Member Functions
	G4RPGAntiXiMinusInelastic ()
	~G4RPGAntiXiMinusInelastic ()
G4HadFinalState *	ApplyYourself (const G4HadProjectile &aTrack, G4Nucleus &targetNucleus)

---

Detailed Description

Definition at line 42 of file G4RPGAntiXiMinusInelastic.hh.

---

Constructor & Destructor Documentation

G4RPGAntiXiMinusInelastic::G4RPGAntiXiMinusInelastic

(

)

[inline]

Definition at line 46 of file G4RPGAntiXiMinusInelastic.hh.

References G4HadronicInteraction::SetMaxEnergy(), and G4HadronicInteraction::SetMinEnergy().

                                : G4RPGInelastic("G4RPGAntiXiMinusInelastic")
    {
      SetMinEnergy( 0.0 );
      SetMaxEnergy( 25.*CLHEP::GeV );
    }

G4RPGAntiXiMinusInelastic::~G4RPGAntiXiMinusInelastic

(

)

[inline]

Definition at line 52 of file G4RPGAntiXiMinusInelastic.hh.

    { }

---

Member Function Documentation

G4HadFinalState * G4RPGAntiXiMinusInelastic::ApplyYourself	(	const G4HadProjectile &	aTrack,
		G4Nucleus &	targetNucleus
	)			[virtual]

Implements G4HadronicInteraction.

Definition at line 39 of file G4RPGAntiXiMinusInelastic.cc.

References G4RPGInelastic::CalculateMomenta(), G4Nucleus::Cinema(), 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, G4InuclParticleNames::pp, G4Nucleus::ReturnTargetParticle(), G4HadFinalState::SetEnergyChange(), G4ReactionProduct::SetKineticEnergy(), G4ReactionProduct::SetMomentum(), G4HadFinalState::SetMomentumChange(), G4ReactionProduct::SetSide(), G4HadFinalState::SetStatusChange(), G4RPGInelastic::SetUpChange(), G4HadronicInteraction::theParticleChange, and G4HadronicInteraction::verboseLevel.

{ 
  const G4HadProjectile *originalIncident = &aTrack;
  if (originalIncident->GetKineticEnergy()<= 0.1*MeV)
  {
    theParticleChange.SetStatusChange(isAlive);
    theParticleChange.SetEnergyChange(aTrack.GetKineticEnergy());
    theParticleChange.SetMomentumChange(aTrack.Get4Momentum().vect().unit()); 
    return &theParticleChange;      
  }

  // create the target particle

  G4DynamicParticle *originalTarget = targetNucleus.ReturnTargetParticle();
    
    if( verboseLevel > 1 )
    {
      const G4Material *targetMaterial = aTrack.GetMaterial();
      G4cout << "G4RPGAntiXiMinusInelastic::ApplyYourself called" << G4endl;
      G4cout << "kinetic energy = " << originalIncident->GetKineticEnergy()/MeV << "MeV, ";
      G4cout << "target material = " << targetMaterial->GetName() << ", ";
      G4cout << "target particle = " << originalTarget->GetDefinition()->GetParticleName()
           << G4endl;
    }
    //
    // Fermi motion and evaporation
    // As of Geant3, the Fermi energy calculation had not been Done
    //
    G4double ek = originalIncident->GetKineticEnergy()/MeV;
    G4double amas = originalIncident->GetDefinition()->GetPDGMass()/MeV;
    G4ReactionProduct modifiedOriginal;
    modifiedOriginal = *originalIncident;
    
    G4double tkin = targetNucleus.Cinema( ek );
    ek += tkin;
    modifiedOriginal.SetKineticEnergy( ek*MeV );
    G4double et = ek + amas;
    G4double p = std::sqrt( std::abs((et-amas)*(et+amas)) );
    G4double pp = modifiedOriginal.GetMomentum().mag()/MeV;
    if( pp > 0.0 )
    {
      G4ThreeVector momentum = modifiedOriginal.GetMomentum();
      modifiedOriginal.SetMomentum( momentum * (p/pp) );
    }
    //
    // calculate black track energies
    //
    tkin = targetNucleus.EvaporationEffects( ek );
    ek -= tkin;
    modifiedOriginal.SetKineticEnergy( ek*MeV );
    et = ek + amas;
    p = std::sqrt( std::abs((et-amas)*(et+amas)) );
    pp = modifiedOriginal.GetMomentum().mag()/MeV;
    if( pp > 0.0 )
    {
      G4ThreeVector momentum = modifiedOriginal.GetMomentum();
      modifiedOriginal.SetMomentum( momentum * (p/pp) );
    }
    G4ReactionProduct currentParticle = modifiedOriginal;
    G4ReactionProduct targetParticle;
    targetParticle = *originalTarget;
    currentParticle.SetSide( 1 ); // incident always goes in forward hemisphere
    targetParticle.SetSide( -1 );  // target always goes in backward hemisphere
    G4bool incidentHasChanged = false;
    G4bool targetHasChanged = false;
    G4bool quasiElastic = false;
    G4FastVector<G4ReactionProduct,GHADLISTSIZE> vec;  // vec will contain the secondary particles
    G4int vecLen = 0;
    vec.Initialize( 0 );
    
    const G4double cutOff = 0.1;
    const G4double anni = std::min( 1.3*currentParticle.GetTotalMomentum()/GeV, 0.4 );
    if( (currentParticle.GetKineticEnergy()/MeV > cutOff) || (G4UniformRand() > anni) )
      Cascade( vec, vecLen,
               originalIncident, currentParticle, targetParticle,
               incidentHasChanged, targetHasChanged, quasiElastic );
    
    CalculateMomenta( vec, vecLen,
                      originalIncident, originalTarget, modifiedOriginal,
                      targetNucleus, currentParticle, targetParticle,
                      incidentHasChanged, targetHasChanged, quasiElastic );
    
    SetUpChange( vec, vecLen,
                 currentParticle, targetParticle,
                 incidentHasChanged );
    
  delete originalTarget;
  return &theParticleChange;
}

---

The documentation for this class was generated from the following files:

• G4RPGAntiXiMinusInelastic.hh
• G4RPGAntiXiMinusInelastic.cc

---