G4CrossSectionBuffer Class Reference

#include <G4CrossSectionBuffer.hh>

Public Member Functions
	G4CrossSectionBuffer (const G4ParticleDefinition *aA, const G4ParticleDefinition *aB)
G4bool	InCharge (const G4ParticleDefinition *aA, const G4ParticleDefinition *aB) const
void	push_back (G4double S, G4double x)
G4double	CrossSection (const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
void	Print ()

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Detailed Description

Definition at line 36 of file G4CrossSectionBuffer.hh.

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Constructor & Destructor Documentation

G4CrossSectionBuffer::G4CrossSectionBuffer	(	const G4ParticleDefinition *	aA,
		const G4ParticleDefinition *	aB
	)			[inline]

Definition at line 40 of file G4CrossSectionBuffer.hh.

    : theA(aA), theB(aB) {}

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Member Function Documentation

G4double G4CrossSectionBuffer::CrossSection	(	const G4KineticTrack &	trk1,
		const G4KineticTrack &	trk2
	)			const [inline]

Definition at line 64 of file G4CrossSectionBuffer.hh.

References G4KineticTrack::Get4Momentum().

    {
      G4double sqrts = (trk1.Get4Momentum()+trk2.Get4Momentum()).mag();
      G4double x1(1), y1(0);
      G4double x2(2), y2(0);
      
      if(theData.size()==1) return theData[theData.size()-1].second;
      
      for(size_t i=0; i<theData.size(); i++)
      {
        if(theData[i].first>sqrts)
        {
          if(0==i)
          {
            x1 = theData[i].first;
            y1 = theData[i].second;
            x2 = theData[i+1].first;
            y2 = theData[i+1].second;
          }
          else if(theData.size()-1==i)
          {
            x1 = theData[theData.size()-2].first;
            y1 = theData[theData.size()-2].second;
            x2 = theData[theData.size()-1].first;
            y2 = theData[theData.size()-1].second;
          }
          else
          {
            x1 = theData[i-1].first;
            y1 = theData[i-1].second;
            x2 = theData[i].first;
            y2 = theData[i].second;
          }
          break;
        }
      }
      // LINLIN interpolation
      // G4cerr << "!!!!!! "<<sqrts<<" "<<x1<<" "<<x2<<" "<<y1<<" "<<y2<<" "<<i<<G4endl;
      G4double result = y1 + (sqrts-x1) * (y2-y1)/(x2-x1);
      if(result<0) result = 0;
      if(y1<0.01*CLHEP::millibarn) result = 0;
      return result;
    }

G4bool G4CrossSectionBuffer::InCharge	(	const G4ParticleDefinition *	aA,
		const G4ParticleDefinition *	aB
	)			const [inline]

Definition at line 43 of file G4CrossSectionBuffer.hh.

    {
      G4bool result = false;
      if(aA == theA)
      {
        if(aB == theB) result = true;
      }
      else if(aA == theB)
      {
        if(aB == theA) result = true;
      }
      return result;
    }

void G4CrossSectionBuffer::Print

(

)

[inline]

Definition at line 108 of file G4CrossSectionBuffer.hh.

References G4cerr, and G4endl.

    {
      for(size_t i=0;i<theData.size(); i++)
      {
        G4cerr << "sqrts = "<<theData[i].first<<", X = "<<theData[i].second/CLHEP::millibarn<<G4endl;
      }
    }

void G4CrossSectionBuffer::push_back	(	G4double	S,
		G4double	x
	)			[inline]

Definition at line 57 of file G4CrossSectionBuffer.hh.

    {
      std::pair<G4double, G4double> aNew;
      aNew.first = S;
      aNew.second = x;
      theData.push_back(aNew);
    }

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

• G4CrossSectionBuffer.hh

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