G4INCL::NKToNK2piChannel Class Reference

#include <G4INCLNKToNK2piChannel.hh>

Inheritance diagram for G4INCL::NKToNK2piChannel:

Public Member Functions
	NKToNK2piChannel (Particle *, Particle *)
virtual	~NKToNK2piChannel ()
void	fillFinalState (FinalState *fs)
Public Member Functions inherited from G4INCL::IChannel
	IChannel ()
virtual	~IChannel ()
FinalState *	getFinalState ()

Detailed Description

Definition at line 47 of file G4INCLNKToNK2piChannel.hh.

Constructor & Destructor Documentation

NKToNK2piChannel()

G4INCL::NKToNK2piChannel::NKToNK2piChannel	(	Particle *	p1,
		Particle *	p2 )

Definition at line 51 of file G4INCLNKToNK2piChannel.cc.

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

~NKToNK2piChannel()

G4INCL::NKToNK2piChannel::~NKToNK2piChannel ( )

virtual

Definition at line 55 of file G4INCLNKToNK2piChannel.cc.

{}

Member Function Documentation

fillFinalState()

void G4INCL::NKToNK2piChannel::fillFinalState ( FinalState * fs )

virtual

Implements G4INCL::IChannel.

Definition at line 57 of file G4INCLNKToNK2piChannel.cc.

                                                        {
        
        // p K+ -> p K+ pi+ pi- (1)
        // p K+ -> p K+ pi0 pi0 (1/8)
        // p K+ -> p K0 pi+ pi0 (1)
        // p K+ -> n K+ pi+ pi0 (1/2)
        // p K+ -> n K0 pi+ pi+ (1/4)
        //
        // p K0 -> p K0 pi+ pi- (1)
        // p K0 -> p K0 pi0 pi0 (1/8)
        // p K0 -> p K+ pi0 pi- (1)
        // p K0 -> n K+ pi+ pi- (1/4)
        // p K0 -> n K+ pi0 pi0 (1/4)
        // p K0 -> n K0 pi+ pi0 (1/2)
        
        Particle *nucleon;
        Particle *kaon;
                
        if(particle1->isNucleon()){
            nucleon = particle1;
            kaon = particle2;
        }
        else{
            nucleon = particle2;
            kaon = particle1;
        }
        
        const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, kaon);
        
        const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(kaon->getType());
        const G4int iso_n = ParticleTable::getIsospin(nucleon->getType());
        G4double rdm = Random::shoot();
        
        ParticleType Pion1Type;
        ParticleType Pion2Type;
        
        if(iso == 2 || iso == -2){
            if(rdm*23. < 8.){
                Pion1Type = PiPlus;
                Pion2Type = PiMinus;
            }
            else if(rdm*23. < 9.){
                Pion1Type = PiZero;
                Pion2Type = PiZero;
            }
            else if(rdm*23. < 17.){
                Pion1Type = ParticleTable::getPionType(iso);
                Pion2Type = PiZero;
                kaon->setType(ParticleTable::getKaonType(-iso/2));
            }
            else if(rdm*23. < 21.){
                Pion1Type = ParticleTable::getPionType(iso);
                Pion2Type = PiZero;
                nucleon->setType(ParticleTable::getNucleonType(-iso/2));
            }
            else{
                Pion1Type = ParticleTable::getPionType(iso);
                Pion2Type = ParticleTable::getPionType(iso);
                kaon->setType(ParticleTable::getKaonType(-iso/2));
                nucleon->setType(ParticleTable::getNucleonType(-iso/2));
            }
        }
        else{
            if(rdm*25. < 8.){
                Pion1Type = PiPlus;
                Pion2Type = PiMinus;
            }
            else if(rdm*25. < 9.){
                Pion1Type = PiZero;
                Pion2Type = PiZero;
            }
            else if(rdm*25. < 17.){
                Pion1Type = ParticleTable::getPionType(-2*iso_n);
                Pion2Type = PiZero;
                kaon->setType(ParticleTable::getKaonType(iso_n));
            }
            else if(rdm*25. < 19.){
                Pion1Type = PiPlus;
                Pion2Type = PiMinus;
                kaon->setType(ParticleTable::getKaonType(iso_n));
                nucleon->setType(ParticleTable::getNucleonType(-iso_n));
            }
            else if(rdm*25. < 21.){
                Pion1Type = PiZero;
                Pion2Type = PiZero;
                kaon->setType(ParticleTable::getKaonType(iso_n));
                nucleon->setType(ParticleTable::getNucleonType(-iso_n));
            }
            else{
                Pion1Type = ParticleTable::getPionType(2*iso_n);
                Pion2Type = PiZero;
                nucleon->setType(ParticleTable::getNucleonType(-iso_n));
            }
        }
        
        ParticleList list;
        list.push_back(nucleon);
        list.push_back(kaon);
        const ThreeVector &rcol1 = nucleon->getPosition();
        const ThreeVector &rcol2 = kaon->getPosition();
        const ThreeVector zero;
        Particle *pion1 = new Particle(Pion1Type,zero,rcol1);
        Particle *pion2 = new Particle(Pion2Type,zero,rcol2);
        list.push_back(pion1);
        list.push_back(pion2);
        
        PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
        
        fs->addModifiedParticle(nucleon);
        fs->addModifiedParticle(kaon);
        fs->addCreatedParticle(pion1);
        fs->addCreatedParticle(pion2);
        
    }

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

• G4INCLNKToNK2piChannel.hh
• G4INCLNKToNK2piChannel.cc