#include <G4SigmaMinusField.hh>
Inheritance diagram for G4SigmaMinusField:
Public Member Functions | |
G4SigmaMinusField (G4V3DNucleus *nucleus, G4double coeff=0.36 *CLHEP::fermi) | |
virtual | ~G4SigmaMinusField () |
virtual G4double | GetField (const G4ThreeVector &aPosition) |
virtual G4double | GetBarrier () |
virtual G4double | GetCoeff () |
Definition at line 46 of file G4SigmaMinusField.hh.
G4SigmaMinusField::G4SigmaMinusField | ( | G4V3DNucleus * | nucleus, | |
G4double | coeff = 0.36 *CLHEP::fermi | |||
) |
Definition at line 48 of file G4SigmaMinusField.cc.
00049 : G4VNuclearField(nucleus) 00050 { 00051 theCoeff = coeff; 00052 }
G4SigmaMinusField::~G4SigmaMinusField | ( | ) | [virtual] |
G4double G4SigmaMinusField::GetBarrier | ( | ) | [virtual] |
Implements G4VNuclearField.
Definition at line 76 of file G4SigmaMinusField.cc.
References G4V3DNucleus::GetCharge(), G4V3DNucleus::GetMassNumber(), and G4VNuclearField::theNucleus.
Referenced by GetField().
00077 { 00078 G4double A = theNucleus->GetMassNumber(); 00079 G4double Z = theNucleus->GetCharge(); 00080 G4double coulombBarrier = (1.44/1.14) * MeV * Z / (1.0 + std::pow(A,1./3.)); 00081 return -coulombBarrier; 00082 }
virtual G4double G4SigmaMinusField::GetCoeff | ( | ) | [inline, virtual] |
G4double G4SigmaMinusField::GetField | ( | const G4ThreeVector & | aPosition | ) | [virtual] |
Implements G4VNuclearField.
Definition at line 57 of file G4SigmaMinusField.cc.
References G4InuclSpecialFunctions::bindingEnergy(), GetBarrier(), G4NucleiProperties::GetBindingEnergy(), G4V3DNucleus::GetCharge(), G4VNuclearDensity::GetDensity(), G4V3DNucleus::GetMassNumber(), G4V3DNucleus::GetNuclearDensity(), G4ParticleDefinition::GetPDGMass(), G4INCL::Math::pi, G4VNuclearField::radius, G4SigmaMinus::SigmaMinus(), and G4VNuclearField::theNucleus.
00058 { 00059 // Field is 0 out of the nucleus! 00060 if(aPosition.mag() >= radius) return 0.0; 00061 00062 G4double sigmaMinusMass = G4SigmaMinus::SigmaMinus()->GetPDGMass(); 00063 00064 G4int A = theNucleus->GetMassNumber(); 00065 G4int Z = theNucleus->GetCharge(); 00066 G4double bindingEnergy = G4NucleiProperties::GetBindingEnergy(A, Z); 00067 G4double nucleusMass = Z*proton_mass_c2+(A-Z)*neutron_mass_c2+bindingEnergy; 00068 G4double reducedMass = sigmaMinusMass*nucleusMass/(sigmaMinusMass+nucleusMass); 00069 00070 const G4VNuclearDensity * nuclearDensity=theNucleus->GetNuclearDensity(); 00071 G4double density = nuclearDensity->GetDensity(aPosition); 00072 00073 return -2.*pi*hbarc*hbarc/reducedMass*(2.0)*theCoeff*density+GetBarrier(); 00074 }