#include <G4Parton.hh>

Public Member Functions
void	DefineMomentumInZ (G4double aLightConeMomentum, G4bool aDirection)

void	DefineMomentumInZ (G4double aLightConeMomentum, G4double aLightConeE, G4bool aDirection)

	G4Parton ()

	G4Parton (const G4Parton &right)

	G4Parton (G4int PDGencoding)

const G4LorentzVector &	Get4Momentum () const

G4int	GetColour ()

G4ParticleDefinition *	GetDefinition ()

G4double	GetIsoSpinZ ()

G4int	GetPDGcode () const

const G4ThreeVector &	GetPosition () const

G4double	GetSpinZ ()

G4double	GetX ()

G4bool	operator!= (const G4Parton &right) const

G4Parton &	operator= (const G4Parton &right)

G4bool	operator== (const G4Parton &right) const

void	Set4Momentum (const G4LorentzVector &aMomentum)

void	SetColour (G4int aColour)

void	SetDefinition (G4ParticleDefinition *aDefinition)

void	SetIsoSpinZ (G4double anIsoSpinZ)

void	SetPosition (const G4ThreeVector &aPosition)

void	SetSpinZ (G4double aSpinZ)

void	SetX (G4double anX)

	~G4Parton ()

Data Fields
G4int	PDGencoding

G4ParticleDefinition *	theDefinition

Private Member Functions
G4double	GetMass ()

Private Attributes
G4int	theColour

G4double	theIsoSpinZ

G4LorentzVector	theMomentum

G4ThreeVector	thePosition

G4double	theSpinZ

G4double	theX

Detailed Description

Definition at line 47 of file G4Parton.hh.

Constructor & Destructor Documentation

◆ G4Parton() [1/3]

G4Parton::G4Parton ( )

inline

Definition at line 50 of file G4Parton.hh.

      {
        // CAUTION: 
        // this is a preliminary definition yielding u and d quarks only!
        //
        PDGencoding=(G4int)(2.*G4UniformRand()); 
        theColour = (G4int)(3.*G4UniformRand())+1;
        theIsoSpinZ = ((G4int)(G4UniformRand()))-0.5;
        theSpinZ = ((G4int)(G4UniformRand()))-0.5;
      }

References G4UniformRand, PDGencoding, theColour, theIsoSpinZ, and theSpinZ.

◆ G4Parton() [2/3]

G4Parton::G4Parton ( G4int PDGencoding )

Definition at line 39 of file G4Parton.cc.

{
    PDGencoding=PDGcode;
    theX = 0;
    theDefinition=G4ParticleTable::GetParticleTable()->FindParticle(PDGencoding);
    if (theDefinition == NULL)
    {
      G4cout << "Encoding = "<<PDGencoding<<G4endl;
      G4String text = "G4Parton::GetDefinition(): Encoding not in particle table";
      throw G4HadronicException(__FILE__, __LINE__, text);
    }
    //
    // colour by random in (1,2,3)=(R,G,B) for quarks and 
    //                  in (-1,-2,-3)=(Rbar,Gbar,Bbar) for anti-quarks:
  //
    if (theDefinition->GetParticleType() == "quarks") {
        theColour = ((G4int)(3.*G4UniformRand())+1)*(std::abs(PDGencoding)/PDGencoding) ;
    }
    //
    // colour by random in (-1,-2,-3)=(Rbar,Gbar,Bbar)=(GB,RB,RG) for di-quarks and
    //                  in (1,2,3)=(R,G,B)=(GB,RB,RG) for anti-di-quarks:
  //
    else if (theDefinition->GetParticleType() == "diquarks") {
        theColour = -((G4int)(3.*G4UniformRand())+1)*(std::abs(PDGencoding)/PDGencoding);
    }
    //
    // colour by random in (-11,-12,...,-33)=(RRbar,RGbar,RBbar,...,BBbar) for gluons:
  //
    else if (theDefinition->GetParticleType() == "gluons") {
        theColour = -(((G4int)(3.*G4UniformRand())+1)*10 + ((G4int)(3.*G4UniformRand())+1));
    }
    else {
      G4cout << "Encoding = "<<PDGencoding<<G4endl;
      G4String text = "G4Parton::GetDefinition(): Particle is not a parton";
      throw G4HadronicException(__FILE__, __LINE__, text);
    }
    //  
    // isospin-z from PDG-encoded isospin-z for 
    // quarks, anti-quarks, di-quarks, and anti-di-quarks:
  //
    if ((theDefinition->GetParticleType() == "quarks") || (theDefinition->GetParticleType() == "diquarks")){
        theIsoSpinZ = theDefinition->GetPDGIsospin3();
    }
    //
  // isospin-z choosen at random from PDG-encoded isospin for gluons (should be zero):
    //
    else {
        G4int thisPDGiIsospin=theDefinition->GetPDGiIsospin();
        if (thisPDGiIsospin == 0) {
            theIsoSpinZ = 0;
        }
        else {
            theIsoSpinZ = ((G4int)((thisPDGiIsospin+1)*G4UniformRand()))-thisPDGiIsospin*0.5;
        }
    }
    //
    // spin-z choosen at random from PDG-encoded spin:
    //
    G4int thisPDGiSpin=theDefinition->GetPDGiSpin();
    if (thisPDGiSpin == 0) {
        theSpinZ = 0;
    }
    else {
        G4int rand=((G4int)((thisPDGiSpin+1)*G4UniformRand()));
        theSpinZ = rand-thisPDGiSpin*0.5;;
    }
}

References G4ParticleTable::FindParticle(), G4cout, G4endl, G4UniformRand, G4ParticleTable::GetParticleTable(), G4ParticleDefinition::GetParticleType(), G4ParticleDefinition::GetPDGiIsospin(), G4ParticleDefinition::GetPDGIsospin3(), G4ParticleDefinition::GetPDGiSpin(), PDGencoding, theColour, theDefinition, theIsoSpinZ, theSpinZ, and theX.

◆ G4Parton() [3/3]

G4Parton::G4Parton ( const G4Parton & right )

Definition at line 107 of file G4Parton.cc.

{
    PDGencoding = right.PDGencoding;
    theMomentum = right.theMomentum;
    thePosition = right.thePosition;
    theX = right.theX;
    theDefinition = right.theDefinition;
    theColour = right.theColour;
    theIsoSpinZ = right.theIsoSpinZ;
    theSpinZ = right.theSpinZ;
}

References PDGencoding, theColour, theDefinition, theIsoSpinZ, theMomentum, thePosition, theSpinZ, and theX.

◆ ~G4Parton()

G4Parton::~G4Parton ( )

Definition at line 136 of file G4Parton.cc.

{
//  cout << "G4Parton::~G4Parton(): this = "<<this <<endl;
//  cout << "break here"<<this <<endl;
}

Member Function Documentation

◆ DefineMomentumInZ() [1/2]

void G4Parton::DefineMomentumInZ	(	G4double	aLightConeMomentum,
		G4bool	aDirection
	)

Definition at line 142 of file G4Parton.cc.

{
    G4double Mass = GetMass();
    G4LorentzVector a4Momentum = Get4Momentum();
    aLightConeMomentum*=theX;
    G4double TransverseMass2 = sqr(a4Momentum.px()) + sqr(a4Momentum.py()) + sqr(Mass);
    a4Momentum.setPz(0.5*(aLightConeMomentum - TransverseMass2/aLightConeMomentum)*(aDirection? 1: -1)); 
    a4Momentum.setE( 0.5*(aLightConeMomentum + TransverseMass2/aLightConeMomentum));
    Set4Momentum(a4Momentum);
}  

References Get4Momentum(), GetMass(), CLHEP::HepLorentzVector::px(), CLHEP::HepLorentzVector::py(), Set4Momentum(), CLHEP::HepLorentzVector::setE(), CLHEP::HepLorentzVector::setPz(), sqr(), and theX.

◆ DefineMomentumInZ() [2/2]

void G4Parton::DefineMomentumInZ	(	G4double	aLightConeMomentum,
		G4double	aLightConeE,
		G4bool	aDirection
	)

Definition at line 153 of file G4Parton.cc.

{
    G4double Mass = GetMass();
    G4LorentzVector a4Momentum = Get4Momentum();
    aLightConeMomentum*=theX;
    aLightConeE*=theX;
    G4double TransverseMass2 = sqr(a4Momentum.px()) + sqr(a4Momentum.py()) + sqr(Mass);
    a4Momentum.setPz(0.5*(aLightConeMomentum - aLightConeE - TransverseMass2/aLightConeMomentum)*(aDirection? 1: -1)); 
    a4Momentum.setE( 0.5*(aLightConeMomentum + aLightConeE + TransverseMass2/aLightConeMomentum));
    Set4Momentum(a4Momentum);
}  

References Get4Momentum(), GetMass(), CLHEP::HepLorentzVector::px(), CLHEP::HepLorentzVector::py(), Set4Momentum(), CLHEP::HepLorentzVector::setE(), CLHEP::HepLorentzVector::setPz(), sqr(), and theX.

◆ Get4Momentum()

const G4LorentzVector & G4Parton::Get4Momentum ( ) const

inline

Definition at line 143 of file G4Parton.hh.

{
    return theMomentum;
}

References theMomentum.

Referenced by G4SoftStringBuilder::BuildString(), G4QGSParticipants::CreateStrings(), G4DiffractiveExcitation::CreateStrings(), DefineMomentumInZ(), G4QGSParticipants::DeterminePartonMomenta(), G4LundStringFragmentation::FragmentString(), G4QGSMFragmentation::FragmentString(), G4FragmentingString::G4FragmentingString(), G4LundStringFragmentation::Loop_toFragmentString(), operator=(), G4QGSParticipants::PerformSoftCollisions(), and G4QGSDiffractiveExcitation::String().

◆ GetColour()

G4int G4Parton::GetColour ( )

inline

Definition at line 90 of file G4Parton.hh.

90{return theColour;}

References theColour.

Referenced by G4QGSMSplitableHadron::GetValenceQuarkFlavors(), and G4QGSMSplitableHadron::SoftSplitUp().

◆ GetDefinition()

G4ParticleDefinition * G4Parton::GetDefinition ( )

inline

Definition at line 161 of file G4Parton.hh.

{
    return theDefinition;
}

References theDefinition.

Referenced by G4DiffractiveExcitation::CreateStrings(), G4QGSParticipants::DeterminePartonMomenta(), G4QuarkExchange::ExciteParticipants(), and G4FragmentingString::G4FragmentingString().

◆ GetIsoSpinZ()

G4double G4Parton::GetIsoSpinZ ( )

inline

Definition at line 93 of file G4Parton.hh.

93{return theIsoSpinZ;}

References theIsoSpinZ.

◆ GetMass()

G4double G4Parton::GetMass ( )

inlineprivate

Definition at line 155 of file G4Parton.hh.

{
    return theDefinition->GetPDGMass();
}

References G4ParticleDefinition::GetPDGMass(), and theDefinition.

Referenced by DefineMomentumInZ().

◆ GetPDGcode()

G4int G4Parton::GetPDGcode ( ) const

inline

Definition at line 127 of file G4Parton.hh.

{
    return PDGencoding;
}

References PDGencoding.

Referenced by G4SoftStringBuilder::BuildString(), G4FTFModel::BuildStrings(), G4QGSParticipants::CreateStrings(), G4DiffractiveExcitation::CreateStrings(), G4LundStringFragmentation::FragmentString(), G4QGSMFragmentation::FragmentString(), G4ExcitedString::GetAntiColorParton(), G4ExcitedString::GetColorParton(), G4LundStringFragmentation::Loop_toFragmentString(), operator=(), G4QGSParticipants::PerformSoftCollisions(), and G4QGSDiffractiveExcitation::String().

◆ GetPosition()

const G4ThreeVector & G4Parton::GetPosition ( void ) const

inline

Definition at line 132 of file G4Parton.hh.

{
    return thePosition;
}

References thePosition.

Referenced by G4ExcitedString::G4ExcitedString(), and operator=().

◆ GetSpinZ()

G4double G4Parton::GetSpinZ ( )

inline

Definition at line 96 of file G4Parton.hh.

96{return theSpinZ;}

References theSpinZ.

Referenced by G4QGSMSplitableHadron::GetValenceQuarkFlavors(), and G4QGSMSplitableHadron::SoftSplitUp().

◆ GetX()

G4double G4Parton::GetX ( )

inline

Definition at line 87 of file G4Parton.hh.

87{return theX;}

References theX.

Referenced by G4SoftStringBuilder::BuildString(), G4QGSParticipants::CreateStrings(), and G4QGSParticipants::PerformSoftCollisions().

◆ operator!=()

G4bool G4Parton::operator!= ( const G4Parton & right ) const

inline

Definition at line 122 of file G4Parton.hh.

{
    return this!=&right;
}

◆ operator=()

G4Parton & G4Parton::operator= ( const G4Parton & right )

Definition at line 119 of file G4Parton.cc.

{
   if (this != &right)
   {
      PDGencoding=right.GetPDGcode();
      theMomentum=right.Get4Momentum();
      thePosition=right.GetPosition();
      theX = right.theX;
      theDefinition = right.theDefinition;
      theColour = right.theColour;
      theIsoSpinZ = right.theIsoSpinZ;
      theSpinZ = right.theSpinZ;
   }
 
    return *this;
}

References Get4Momentum(), GetPDGcode(), GetPosition(), PDGencoding, theColour, theDefinition, theIsoSpinZ, theMomentum, thePosition, theSpinZ, and theX.

◆ operator==()

G4bool G4Parton::operator== ( const G4Parton & right ) const

inline

Definition at line 117 of file G4Parton.hh.

{
    return this==&right;
}   

◆ Set4Momentum()

void G4Parton::Set4Momentum ( const G4LorentzVector & aMomentum )

inline

Definition at line 148 of file G4Parton.hh.

{
    theMomentum=aMomentum;
}

References theMomentum.

Referenced by G4QGSMSplitableHadron::BuildSeaQuark(), G4FTFAnnihilation::Create1DiquarkAntiDiquarkString(), G4FTFAnnihilation::Create1QuarkAntiQuarkString(), G4DiffractiveExcitation::CreateStrings(), DefineMomentumInZ(), G4QGSParticipants::DeterminePartonMomenta(), G4QGSMSplitableHadron::DiffractiveSplitUp(), G4DiffractiveSplitableHadron::G4DiffractiveSplitableHadron(), G4DiffractiveSplitableHadron::SetFirstParton(), G4DiffractiveSplitableHadron::SetSecondParton(), G4QGSMSplitableHadron::SoftSplitUp(), G4DiffractiveSplitableHadron::SplitUp(), and G4QGSDiffractiveExcitation::String().

◆ SetColour()

void G4Parton::SetColour ( G4int aColour )

inline

Definition at line 89 of file G4Parton.hh.

89{theColour = aColour;}

References theColour.

Referenced by G4QGSMSplitableHadron::GetValenceQuarkFlavors(), and G4QGSMSplitableHadron::SoftSplitUp().

◆ SetDefinition()

void G4Parton::SetDefinition ( G4ParticleDefinition * aDefinition )

inline

Definition at line 166 of file G4Parton.hh.

{
    theDefinition = aDefinition;
    PDGencoding = theDefinition->GetPDGEncoding();
}

References G4ParticleDefinition::GetPDGEncoding(), PDGencoding, and theDefinition.

Referenced by G4QuarkExchange::ExciteParticipants().

◆ SetIsoSpinZ()

void G4Parton::SetIsoSpinZ ( G4double anIsoSpinZ )

inline

Definition at line 92 of file G4Parton.hh.

92{theIsoSpinZ = anIsoSpinZ;}

References theIsoSpinZ.

◆ SetPosition()

void G4Parton::SetPosition ( const G4ThreeVector & aPosition )

inline

Definition at line 137 of file G4Parton.hh.

{
    thePosition=aPosition;
}

References thePosition.

Referenced by G4QGSMSplitableHadron::BuildSeaQuark(), G4QGSMSplitableHadron::DiffractiveSplitUp(), and G4QGSMSplitableHadron::GetValenceQuarkFlavors().

◆ SetSpinZ()

void G4Parton::SetSpinZ ( G4double aSpinZ )

inline

Definition at line 95 of file G4Parton.hh.

95{theSpinZ = aSpinZ;}

References theSpinZ.

Referenced by G4QGSMSplitableHadron::GetValenceQuarkFlavors(), and G4QGSMSplitableHadron::SoftSplitUp().

◆ SetX()

void G4Parton::SetX ( G4double anX )

inline

Definition at line 86 of file G4Parton.hh.

86{ theX = anX; }

References theX.

Field Documentation

◆ PDGencoding

G4int G4Parton::PDGencoding

Definition at line 102 of file G4Parton.hh.

Referenced by G4Parton(), GetPDGcode(), operator=(), and SetDefinition().

◆ theColour

G4int G4Parton::theColour

private

Definition at line 109 of file G4Parton.hh.

Referenced by G4Parton(), GetColour(), operator=(), and SetColour().

◆ theDefinition

G4ParticleDefinition* G4Parton::theDefinition

Definition at line 103 of file G4Parton.hh.

Referenced by G4Parton(), GetDefinition(), GetMass(), operator=(), and SetDefinition().

◆ theIsoSpinZ

G4double G4Parton::theIsoSpinZ

private

Definition at line 110 of file G4Parton.hh.

Referenced by G4Parton(), GetIsoSpinZ(), operator=(), and SetIsoSpinZ().

◆ theMomentum

G4LorentzVector G4Parton::theMomentum

private

Definition at line 106 of file G4Parton.hh.

Referenced by G4Parton(), Get4Momentum(), operator=(), and Set4Momentum().

◆ thePosition

G4ThreeVector G4Parton::thePosition

private

Definition at line 107 of file G4Parton.hh.

Referenced by G4Parton(), GetPosition(), operator=(), and SetPosition().

◆ theSpinZ

G4double G4Parton::theSpinZ

private

Definition at line 111 of file G4Parton.hh.

Referenced by G4Parton(), GetSpinZ(), operator=(), and SetSpinZ().

◆ theX

G4double G4Parton::theX

private

Definition at line 113 of file G4Parton.hh.

Referenced by DefineMomentumInZ(), G4Parton(), GetX(), operator=(), and SetX().

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

source/processes/hadronic/util/include/G4Parton.hh
source/processes/hadronic/util/src/G4Parton.cc

Public Member Functions

Data Fields

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ G4Parton() [1/3]

◆ G4Parton() [2/3]

◆ G4Parton() [3/3]

◆ ~G4Parton()

Member Function Documentation

◆ DefineMomentumInZ() [1/2]

◆ DefineMomentumInZ() [2/2]

◆ Get4Momentum()

◆ GetColour()

◆ GetDefinition()

◆ GetIsoSpinZ()

◆ GetMass()

◆ GetPDGcode()

◆ GetPosition()

◆ GetSpinZ()

◆ GetX()

◆ operator!=()

◆ operator=()

◆ operator==()

◆ Set4Momentum()

◆ SetColour()

◆ SetDefinition()

◆ SetIsoSpinZ()

◆ SetPosition()

◆ SetSpinZ()

◆ SetX()

Field Documentation

◆ PDGencoding

◆ theColour

◆ theDefinition

◆ theIsoSpinZ

◆ theMomentum

◆ thePosition

◆ theSpinZ

◆ theX