G4eeToPGammaModel Class Reference

#include <G4eeToPGammaModel.hh>

Inheritance diagram for G4eeToPGammaModel:

Public Member Functions
G4double	ComputeCrossSection (G4double) const override
	G4eeToPGammaModel (const G4eeToPGammaModel &)=delete
	G4eeToPGammaModel (G4eeCrossSections *, const G4String &, G4double, G4double)
G4double	HighEnergy () const
G4double	LowEnergy () const
G4eeToPGammaModel &	operator= (const G4eeToPGammaModel &right)=delete
G4double	PeakEnergy () const override
G4PhysicsVector *	PhysicsVector () const
void	SampleSecondaries (std::vector< G4DynamicParticle * > *, G4double, const G4ThreeVector &) override
	~G4eeToPGammaModel () override

Protected Attributes
G4eeCrossSections *	cross

Private Attributes
G4double	delta
G4double	highEnergy
G4double	lowEnergy
G4double	massP
G4double	massR
const G4ParticleDefinition *	particle
const G4ParticleDefinition *	pi0

Detailed Description

Definition at line 59 of file G4eeToPGammaModel.hh.

Constructor & Destructor Documentation

G4eeToPGammaModel() [1/2]

G4eeToPGammaModel::G4eeToPGammaModel ( G4eeCrossSections *  cr, const G4String &  npart, G4double  maxkinEnergy, G4double  binWidth  )

explicit

Definition at line 64 of file G4eeToPGammaModel.cc.

: G4Vee2hadrons(cr,
        npart=="pi0" ? 782.62*MeV:1019.46*MeV,  
        maxkinEnergy,
        binWidth)
{
  G4cout << "####G4eeToPGammaModel & particle:" << npart 
     << "####" << G4endl; 
 
  pi0 = G4PionZero::PionZero();
  if(npart == "pi0") {
    massR = 782.62*MeV;
    particle = pi0;
  } else {
    massR = 1019.46*MeV;
    particle = G4Eta::Eta();
  }
  massP = particle->GetPDGMass();
}

References G4Eta::Eta(), G4cout, G4endl, G4ParticleDefinition::GetPDGMass(), massP, massR, MeV, particle, pi0, and G4PionZero::PionZero().

~G4eeToPGammaModel()

G4eeToPGammaModel::~G4eeToPGammaModel ( )

override

Definition at line 89 of file G4eeToPGammaModel.cc.

{}

G4eeToPGammaModel() [2/2]

G4eeToPGammaModel::G4eeToPGammaModel ( const G4eeToPGammaModel &  )

delete

Member Function Documentation

ComputeCrossSection()

G4double G4eeToPGammaModel::ComputeCrossSection ( G4double  e ) const

overridevirtual

Implements G4Vee2hadrons.

Definition at line 101 of file G4eeToPGammaModel.cc.

{
  G4double xs;
  if(particle == pi0) xs = cross->CrossSectionPi0G(e);
  else                xs = cross->CrossSectionEtaG(e);
  return xs;
}

References G4Vee2hadrons::cross, G4eeCrossSections::CrossSectionEtaG(), G4eeCrossSections::CrossSectionPi0G(), particle, and pi0.

HighEnergy()

G4double G4Vee2hadrons::HighEnergy ( ) const

inlineinherited

Definition at line 95 of file G4Vee2hadrons.hh.

{return highEnergy;};

References G4Vee2hadrons::highEnergy.

Referenced by G4eeToHadronsMultiModel::AddEEModel(), G4eeToHadronsModel::Initialise(), and G4eeTo3PiModel::PeakEnergy().

LowEnergy()

G4double G4Vee2hadrons::LowEnergy ( ) const

inlineinherited

Definition at line 93 of file G4Vee2hadrons.hh.

{return lowEnergy;};

References G4Vee2hadrons::lowEnergy.

Referenced by G4eeToHadronsMultiModel::AddEEModel(), and G4eeToHadronsModel::Initialise().

operator=()

G4eeToPGammaModel & G4eeToPGammaModel::operator= ( const G4eeToPGammaModel &  right )

delete

PeakEnergy()

G4double G4eeToPGammaModel::PeakEnergy ( ) const

overridevirtual

Implements G4Vee2hadrons.

Definition at line 94 of file G4eeToPGammaModel.cc.

{
  return massR;
}

References massR.

PhysicsVector()

G4PhysicsVector * G4Vee2hadrons::PhysicsVector ( ) const

inlineinherited

Definition at line 83 of file G4Vee2hadrons.hh.

  {
    G4int nbins = std::max(3, G4int((highEnergy - lowEnergy)/delta) );
    G4PhysicsVector* pp = new G4PhysicsLinearVector(lowEnergy,highEnergy,nbins);
    return pp;
  };

References G4Vee2hadrons::delta, G4Vee2hadrons::highEnergy, G4Vee2hadrons::lowEnergy, G4INCL::Math::max(), and G4InuclParticleNames::pp.

Referenced by G4eeToHadronsModel::Initialise().

SampleSecondaries()

void G4eeToPGammaModel::SampleSecondaries ( std::vector< G4DynamicParticle * > *  newp, G4double  e, const G4ThreeVector &  direction  )

overridevirtual

Implements G4Vee2hadrons.

Definition at line 111 of file G4eeToPGammaModel.cc.

{
  G4double egam = 0.5*e*(1.0 - massP*massP/(massR*massR));
  G4double tkin = e - egam - massP;
  if(tkin < 0.0) tkin = 0.0;
  G4double cost;
  do {
    cost = 2.0*G4UniformRand() - 1.0;
    // Loop checking, 07-Aug-2015, Vladimir Ivanchenko
  } while( 2.0*G4UniformRand() > 1.0 + cost*cost );
 
  G4double sint = sqrt(1.0 - cost*cost);
  G4double phi  = twopi * G4UniformRand();
 
  G4ThreeVector dir(sint*cos(phi),sint*sin(phi), cost);
  dir.rotateUz(direction);
 
  // create G4DynamicParticle objects
  G4DynamicParticle* p1 = 
     new G4DynamicParticle(particle,dir,tkin);
  G4DynamicParticle* p2 = 
     new G4DynamicParticle(G4Gamma::Gamma(),-dir,egam);
  newp->push_back(p1);
  newp->push_back(p2);
}

References G4UniformRand, G4Gamma::Gamma(), massP, massR, particle, CLHEP::Hep3Vector::rotateUz(), and twopi.

Field Documentation

cross

G4eeCrossSections* G4Vee2hadrons::cross

protectedinherited

Definition at line 110 of file G4Vee2hadrons.hh.

Referenced by G4ee2KChargedModel::ComputeCrossSection(), G4ee2KNeutralModel::ComputeCrossSection(), G4eeTo3PiModel::ComputeCrossSection(), ComputeCrossSection(), G4eeToTwoPiModel::ComputeCrossSection(), and G4eeTo3PiModel::SampleSecondaries().

delta

G4double G4Vee2hadrons::delta

privateinherited

Definition at line 106 of file G4Vee2hadrons.hh.

Referenced by G4Vee2hadrons::G4Vee2hadrons(), and G4Vee2hadrons::PhysicsVector().

highEnergy

G4double G4Vee2hadrons::highEnergy

privateinherited

Definition at line 105 of file G4Vee2hadrons.hh.

Referenced by G4Vee2hadrons::G4Vee2hadrons(), G4Vee2hadrons::HighEnergy(), and G4Vee2hadrons::PhysicsVector().

lowEnergy

G4double G4Vee2hadrons::lowEnergy

privateinherited

Definition at line 104 of file G4Vee2hadrons.hh.

Referenced by G4Vee2hadrons::G4Vee2hadrons(), G4Vee2hadrons::LowEnergy(), and G4Vee2hadrons::PhysicsVector().

massP

G4double G4eeToPGammaModel::massP

private

Definition at line 85 of file G4eeToPGammaModel.hh.

Referenced by G4eeToPGammaModel(), and SampleSecondaries().

massR

G4double G4eeToPGammaModel::massR

private

Definition at line 86 of file G4eeToPGammaModel.hh.

Referenced by G4eeToPGammaModel(), PeakEnergy(), and SampleSecondaries().

particle

const G4ParticleDefinition* G4eeToPGammaModel::particle

private

Definition at line 82 of file G4eeToPGammaModel.hh.

Referenced by emcalc_gui.MainWindow::cb_select_particle(), emcalc_gui.MainWindow::cb_show_plot(), ComputeCrossSection(), G4eeToPGammaModel(), and SampleSecondaries().

pi0

const G4ParticleDefinition* G4eeToPGammaModel::pi0

private

Definition at line 83 of file G4eeToPGammaModel.hh.

Referenced by ComputeCrossSection(), and G4eeToPGammaModel().

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

• source/processes/electromagnetic/highenergy/include/G4eeToPGammaModel.hh
• source/processes/electromagnetic/highenergy/src/G4eeToPGammaModel.cc