G4CoulombBarrier Class Reference

#include <G4CoulombBarrier.hh>

Inheritance diagram for G4CoulombBarrier:

Collaboration diagram for G4CoulombBarrier:

Public Member Functions
	G4CoulombBarrier (G4int anA, G4int aZ)
virtual	~G4CoulombBarrier ()
G4double	GetCoulombBarrier (G4int ARes, G4int ZRes, G4double U) const
virtual G4double	BarrierPenetrationFactor (G4int Eexc) const
Public Member Functions inherited from G4VCoulombBarrier
	G4VCoulombBarrier (G4int anA, G4int aZ)
virtual	~G4VCoulombBarrier ()
void	SetParameters (G4double rho, G4double r0)
G4int	GetA (void) const
G4int	GetZ (void) const
G4double	GetRho (void) const
G4double	GetR0 (void) const

Protected Attributes
G4Pow *	g4calc

Detailed Description

Definition at line 43 of file G4CoulombBarrier.hh.

Constructor & Destructor Documentation

G4CoulombBarrier::G4CoulombBarrier ( G4int  anA, G4int  aZ  )

explicit

Definition at line 39 of file G4CoulombBarrier.cc.

  : G4VCoulombBarrier(A, Z) 
{
  g4calc = G4Pow::GetInstance();
  if(Z > 0) {
    G4double rho = 1.2*CLHEP::fermi; 
    G4double r0  = 1.5*CLHEP::fermi; 
    if(1 == A) {
      rho = 0.0;
    } else if(A <= 3) {
      rho = 0.8*CLHEP::fermi; 
      r0  = 1.7*CLHEP::fermi;
    } else {
      r0  = 1.7*CLHEP::fermi;
    }
    SetParameters(rho, r0);
  }
}

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G4CoulombBarrier::~G4CoulombBarrier ( )

virtual

Definition at line 58 of file G4CoulombBarrier.cc.

{}

Member Function Documentation

G4double G4CoulombBarrier::BarrierPenetrationFactor ( G4int  Eexc ) const

virtual

Implements G4VCoulombBarrier.

Definition at line 66 of file G4CoulombBarrier.cc.

{
  G4double res = 1.0;
  if(GetZ() == 1) {
    res = (aZ >= 70) ? 0.80 :
    (((0.2357e-5*aZ) - 0.42679e-3)*aZ + 0.27035e-1)*aZ + 0.19025;
    res += 0.06*(GetA() - 1);

  } else if(GetZ() == 2 && GetA() <= 4) {
    res = (aZ >= 70) ? 0.98 :
    (((0.23684e-5*aZ) - 0.42143e-3)*aZ + 0.25222e-1)*aZ + 0.46699;
    res += 0.12*(4 - GetA());
  }
  return res;
}

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G4double G4CoulombBarrier::GetCoulombBarrier ( G4int  ARes, G4int  ZRes, G4double  U  ) const

virtual

Implements G4VCoulombBarrier.

Definition at line 61 of file G4CoulombBarrier.cc.

{
  return CLHEP::elm_coupling*(GetZ()*ZRes)/(GetR0()*g4calc->Z13(ARes) + GetRho());
}

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Member Data Documentation

G4Pow* G4CoulombBarrier::g4calc

protected

Definition at line 64 of file G4CoulombBarrier.hh.

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

• geant4.10.03.p01/source/processes/hadronic/models/de_excitation/util/include/G4CoulombBarrier.hh
• geant4.10.03.p01/source/processes/hadronic/models/de_excitation/util/src/G4CoulombBarrier.cc