#include <G4INCLPiNToDeltaChannel.hh>

Inheritance diagram for G4INCL::PiNToDeltaChannel:

Public Member Functions
	PiNToDeltaChannel (Particle , Particle )

virtual	~PiNToDeltaChannel ()

void	fillFinalState (FinalState *fs)

Public Member Functions inherited from G4INCL::IChannel
	IChannel ()

virtual	~IChannel ()

FinalState *	getFinalState ()

virtual void	fillFinalState (FinalState *fs)=0

Detailed Description

Definition at line 47 of file G4INCLPiNToDeltaChannel.hh.

Constructor & Destructor Documentation

◆ PiNToDeltaChannel()

G4INCL::PiNToDeltaChannel::PiNToDeltaChannel	(	Particle *	p1,
		Particle *	p2
	)

Definition at line 47 of file G4INCLPiNToDeltaChannel.cc.

    : particle1(p1), particle2(p2)
  {
 
  }

◆ ~PiNToDeltaChannel()

G4INCL::PiNToDeltaChannel::~PiNToDeltaChannel ( )

virtual

Definition at line 53 of file G4INCLPiNToDeltaChannel.cc.

                                       {
 
  }

Member Function Documentation

◆ fillFinalState()

void G4INCL::PiNToDeltaChannel::fillFinalState ( FinalState * fs )

virtual

Implements G4INCL::IChannel.

Definition at line 57 of file G4INCLPiNToDeltaChannel.cc.

                                                       {
    Particle * nucleon;
    Particle * pion;
    if(particle1->isNucleon()) {
      nucleon = particle1;
      pion = particle2;
    } else {
      nucleon = particle2;
      pion = particle1;
    }
 
    ParticleType deltaType = DeltaZero;
    if(ParticleConfig::isPair(particle1, particle2, Proton, PiPlus)) {
      deltaType = DeltaPlusPlus;
    } else if(ParticleConfig::isPair(particle1, particle2, Neutron, PiPlus)) {
      deltaType = DeltaPlus;
    } else if(ParticleConfig::isPair(particle1, particle2, Proton, PiZero)) {
      deltaType = DeltaPlus;
    } else if(ParticleConfig::isPair(particle1, particle2, Neutron, PiZero)) {
      deltaType = DeltaZero;
    } else if(ParticleConfig::isPair(particle1, particle2, Proton, PiMinus)) {
      deltaType = DeltaZero;
    } else if(ParticleConfig::isPair(particle1, particle2, Neutron, PiMinus)) {
      deltaType = DeltaMinus;
    } else {
      INCL_ERROR("Unknown particle pair in Pi-N collision." << '\n');
    }
 
    G4double deltaEnergy = nucleon->getEnergy()+ pion->getEnergy();
 
    nucleon->setType(deltaType); // nucleon becomes the delta
    nucleon->setEnergy(deltaEnergy); // set the energy of the delta
 
    // Erase the parent resonance information of the nucleon and pion
    nucleon->setParentResonancePDGCode(0);
    nucleon->setParentResonanceID(0);
    pion->setParentResonancePDGCode(0);
    pion->setParentResonanceID(0);
    
    ThreeVector deltaMomentum = nucleon->getMomentum() + pion->getMomentum();
    nucleon->setMomentum(deltaMomentum);
 
    const G4double deltaMass = std::sqrt(deltaEnergy*deltaEnergy - deltaMomentum.mag2());
    nucleon->setMass(deltaMass);
 
    fs->addModifiedParticle(nucleon); // nucleon became a delta
    fs->addDestroyedParticle(pion);  // pion was removed
  }