G4INCL::RecombinationChannel Class Reference

#include <G4INCLRecombinationChannel.hh>

Inheritance diagram for G4INCL::RecombinationChannel:

Public Member Functions
	RecombinationChannel (Nucleus *n, Particle *p1, Particle *p2)
virtual	~RecombinationChannel ()
FinalState *	getFinalState ()

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Detailed Description

Definition at line 53 of file G4INCLRecombinationChannel.hh.

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Constructor & Destructor Documentation

G4INCL::RecombinationChannel::RecombinationChannel	(	Nucleus *	n,
		Particle *	p1,
		Particle *	p2
	)

Definition at line 55 of file G4INCLRecombinationChannel.cc.

References G4INCL::Particle::isDelta().

    :theNucleus(n)
  {
    if(p1->isDelta()) {
// assert(p2->isNucleon());
      theDelta = p1;
      theNucleon = p2;
    } else {
// assert(p1->isNucleon());
      theDelta = p2;
      theNucleon = p1;
    }
  }

G4INCL::RecombinationChannel::~RecombinationChannel

(

)

[virtual]

Definition at line 69 of file G4INCLRecombinationChannel.cc.

  {
  }

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Member Function Documentation

FinalState * G4INCL::RecombinationChannel::getFinalState

(

)

[virtual]

Implements G4INCL::IChannel.

Definition at line 73 of file G4INCLRecombinationChannel.cc.

References G4INCL::FinalState::addModifiedParticle(), G4INCL::Particle::adjustEnergyFromMomentum(), G4INCL::DeltaMinus, G4INCL::DeltaPlus, G4INCL::DeltaPlusPlus, G4INCL::DeltaZero, ERROR, G4INCL::Particle::getMass(), G4INCL::Particle::getType(), G4INCL::KinematicsUtils::momentumInCM(), G4INCL::Neutron, G4INCL::Random::normVector(), G4INCL::Proton, G4INCL::Particle::setMomentum(), G4INCL::Particle::setType(), and G4INCL::KinematicsUtils::totalEnergyInCM().

  {
    // Compute the total available energy in the CM
    const G4double sqrts = KinematicsUtils::totalEnergyInCM(theDelta, theNucleon);

    // Assign the types of the final-state particles
    switch(theDelta->getType()) {
      case DeltaPlusPlus:
// assert(theNucleon->getType()!=Proton);
        theDelta->setType(Proton);
        theNucleon->setType(Proton);
        break;
      case DeltaPlus:
        theDelta->setType(Proton);
        break;
      case DeltaZero:
        theDelta->setType(Neutron);
        break;
      case DeltaMinus:
// assert(theNucleon->getType()!=Neutron);
        theDelta->setType(Neutron);
        theNucleon->setType(Neutron);
        break;
      default:
        ERROR("Unknown particle type in RecombinationChannel" << std::endl);
        break;
    }

    // Calculate the momenta of the nucleons in the final state
    const G4double pCM = KinematicsUtils::momentumInCM(sqrts, theDelta->getMass(), theNucleon->getMass());

    // The angular distribution of final-state nucleons is isotropic
    ThreeVector momentum = Random::normVector(pCM);

    // Assign the momenta
    theDelta->setMomentum(momentum);
    theNucleon->setMomentum(-momentum);

    // Update the kinetic energies
    theDelta->adjustEnergyFromMomentum();
    theNucleon->adjustEnergyFromMomentum();

    // Create the final state
    FinalState *fs = new FinalState();
    fs->addModifiedParticle(theDelta);
    fs->addModifiedParticle(theNucleon);

    return fs;

  }

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

• G4INCLRecombinationChannel.hh
• G4INCLRecombinationChannel.cc

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