G4INCLTransmissionChannel.cc

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//
// INCL++ intra-nuclear cascade model
// Pekka Kaitaniemi, CEA and Helsinki Institute of Physics
// Davide Mancusi, CEA
// Alain Boudard, CEA
// Sylvie Leray, CEA
// Joseph Cugnon, University of Liege
//
#define INCLXX_IN_GEANT4_MODE 1

#include "globals.hh"

#include "G4INCLTransmissionChannel.hh"

namespace G4INCL {

  TransmissionChannel::TransmissionChannel(Nucleus *nucleus, Particle *particle)
    : theNucleus(nucleus), theParticle(particle)
  {}

  TransmissionChannel::~TransmissionChannel() {}

  G4double TransmissionChannel::particleLeaves() {

    // \todo{this is the place to add refraction}

    // The particle energy outside the nucleus. Subtract the nuclear
    // potential from the kinetic energy when leaving the nucleus
    G4double kineticEnergyOutside = theParticle->getEnergy()
      - theParticle->getPotentialEnergy()
      - theParticle->getMass();

    // Correction for real masses
    const G4int AParent = theNucleus->getA();
    const G4int ZParent = theNucleus->getZ();
    const G4double theQValueCorrection = theParticle->getEmissionQValueCorrection(AParent,ZParent);
    kineticEnergyOutside += theQValueCorrection;
    theParticle->setTableMass();

    // Scaling factor for the particle momentum
    theParticle->setEnergy(kineticEnergyOutside + theParticle->getMass());
    theParticle->adjustMomentumFromEnergy();
    theParticle->setPotentialEnergy(0.);

    return theQValueCorrection;
  }

  FinalState* TransmissionChannel::getFinalState() {
    FinalState *fs = new FinalState;
    G4double initialEnergy = 0.0;
    initialEnergy = theParticle->getEnergy() - theParticle->getPotentialEnergy();

    // Correction for real masses
    initialEnergy += theParticle->getTableMass() - theParticle->getMass();

    const G4double theQValueCorrection = particleLeaves();
    fs->setTotalEnergyBeforeInteraction(initialEnergy + theQValueCorrection);
    fs->addOutgoingParticle(theParticle); // We write the particle down as outgoing
    return fs;
  }
}

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