G4XnpTotalLowE Class Reference

#include <G4XnpTotalLowE.hh>

Inheritance diagram for G4XnpTotalLowE:

Public Member Functions
	G4XnpTotalLowE ()
virtual	~G4XnpTotalLowE ()
G4bool	operator== (const G4XnpTotalLowE &right) const
G4bool	operator!= (const G4XnpTotalLowE &right) const
virtual G4double	CrossSection (const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
virtual const G4CrossSectionVector *	GetComponents () const
virtual G4bool	IsValid (G4double e) const
virtual void	Print () const
virtual G4String	Name () const
virtual G4double	HighLimit () const
Public Member Functions inherited from G4VCrossSectionSource
	G4VCrossSectionSource ()
virtual	~G4VCrossSectionSource ()
G4bool	operator== (const G4VCrossSectionSource &right) const
G4bool	operator!= (const G4VCrossSectionSource &right) const
virtual void	PrintAll (const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
virtual G4double	LowLimit () const

Additional Inherited Members
Protected Member Functions inherited from G4VCrossSectionSource
G4bool	InLimits (G4double e, G4double eLow, G4double eHigh) const
const G4ParticleDefinition *	FindLightParticle (const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
G4double	FcrossX (G4double e, G4double e0, G4double sigma, G4double eParam, G4double power) const
G4ParticleDefinition *	FindKeyParticle (const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
G4double	GetTransversePionMass () const
G4double	GetMinStringMass () const

Detailed Description

Definition at line 51 of file G4XnpTotalLowE.hh.

Constructor & Destructor Documentation

G4XnpTotalLowE::G4XnpTotalLowE

(

)

Definition at line 87 of file G4XnpTotalLowE.cc.

References python.hepunit::GeV, python.hepunit::millibarn, and G4PhysicsVector::PutValue().

{ 
  // Cross-sections are available in the range (_eMin,_eMax)

  _eMin = _eMinTable * GeV;
  _eMin = std::exp(std::log(_eMinTable)-_eStepLog)*GeV;
  _eMax = std::exp(std::log(_eMinTable) + _tableSize * _eStepLog) * GeV;

  // Protections: validity limits must be compatible with available data
//  @@GF  this ought to be _lowLimit < _eMin
  if (_eMin < _lowLimit)
    throw G4HadronicException(__FILE__, __LINE__, "G4XnpTotalLowE::G4XnpTotalLowE - Low energy limit not valid");
    
  if (_highLimit > _eMax)
    throw G4HadronicException(__FILE__, __LINE__, "G4XnpTotalLowE::G4XnpTotalLowE - High energy limit not valid");
    
  _sigma = new G4PhysicsLnVector(_eMin,_eMax,_tableSize);
  G4int i;
  for (i=0; i<_tableSize; i++)
    {
      G4double value = _sigmaTable[i] * millibarn;
      _sigma->PutValue(i,value);
    }
}

G4XnpTotalLowE::~G4XnpTotalLowE ( )

virtual

Definition at line 113 of file G4XnpTotalLowE.cc.

{
  delete _sigma;
}

Member Function Documentation

G4double G4XnpTotalLowE::CrossSection ( const G4KineticTrack &  trk1, const G4KineticTrack &  trk2  ) const

virtual

Implements G4VCrossSectionSource.

Definition at line 131 of file G4XnpTotalLowE.cc.

References G4KineticTrack::Get4Momentum(), G4KineticTrack::GetDefinition(), G4PhysicsVector::GetValue(), neutron, G4Neutron::NeutronDefinition(), G4InuclParticleNames::proton, and G4Proton::ProtonDefinition().

{
  G4double sigma = 0.;
  G4double sqrtS = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag();
  G4bool dummy = false;

  G4ParticleDefinition* proton = G4Proton::ProtonDefinition();
  G4ParticleDefinition* neutron = G4Neutron::NeutronDefinition();   

  G4ParticleDefinition* def1 = trk1.GetDefinition();
  G4ParticleDefinition* def2 = trk2.GetDefinition();
  if ( (def1 == proton && def2 == neutron) ||
       (def1 == neutron && def2 == proton) )
    {
      if (sqrtS >= _eMin && sqrtS <= _eMax)
    {
      sigma = _sigma->GetValue(sqrtS,dummy);
    } else if ( sqrtS < _eMin )
        {
          sigma = _sigma->GetValue(_eMin,dummy);
        }
    }

  return sigma;
}

virtual const G4CrossSectionVector* G4XnpTotalLowE::GetComponents ( ) const

inlinevirtual

Implements G4VCrossSectionSource.

Definition at line 65 of file G4XnpTotalLowE.hh.

{return 0; }

virtual G4double G4XnpTotalLowE::HighLimit ( ) const

inlinevirtual

Reimplemented from G4VCrossSectionSource.

Definition at line 73 of file G4XnpTotalLowE.hh.

{ return _highLimit; }

G4bool G4XnpTotalLowE::IsValid ( G4double  e ) const

virtual

Reimplemented from G4VCrossSectionSource.

Definition at line 183 of file G4XnpTotalLowE.cc.

References G4VCrossSectionSource::InLimits().

{
  G4bool answer = InLimits(e,_lowLimit,_highLimit);

  return answer;
}

G4String G4XnpTotalLowE::Name ( ) const

virtual

Implements G4VCrossSectionSource.

Definition at line 176 of file G4XnpTotalLowE.cc.

Referenced by Print().

{
  G4String name("NNTotalLowE");
  return name;
}

G4bool G4XnpTotalLowE::operator!=

(

const G4XnpTotalLowE &

right

)

const

Definition at line 125 of file G4XnpTotalLowE.cc.

{
  return (this != (G4XnpTotalLowE *) &right);
}

G4bool G4XnpTotalLowE::operator==

(

const G4XnpTotalLowE &

right

)

const

Definition at line 119 of file G4XnpTotalLowE.cc.

{
  return (this == (G4XnpTotalLowE *) &right);
}

void G4XnpTotalLowE::Print ( void  ) const

virtual

Reimplemented from G4VCrossSectionSource.

Definition at line 157 of file G4XnpTotalLowE.cc.

References G4cout, G4endl, G4PhysicsVector::GetLowEdgeEnergy(), G4PhysicsVector::GetValue(), python.hepunit::GeV, python.hepunit::millibarn, Name(), and G4VCrossSectionSource::Print().

{
  // Dump the cross-section table

  G4cout << Name() << "Cross-section table: " << G4endl;
  G4bool dummy = false;
  G4int i;

  for (i=0; i<_tableSize; i++)
    {
      G4double e = _sigma->GetLowEdgeEnergy(i) / GeV;
      G4double sigma = _sigma->GetValue(e,dummy) / millibarn;
      G4cout << i << ") e = " << e << " GeV ---- Cross section = " << sigma << " mb " << G4endl;
    }

  G4VCrossSectionSource::Print();
}

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

• G4XnpTotalLowE.hh
• G4XnpTotalLowE.cc