#include <G4PionPlusField.hh>
Inheritance diagram for G4PionPlusField:
Public Member Functions | |
G4PionPlusField (G4V3DNucleus *nucleus, G4double coeff=0.042 *CLHEP::fermi) | |
virtual | ~G4PionPlusField () |
virtual G4double | GetField (const G4ThreeVector &aPosition) |
virtual G4double | GetBarrier () |
virtual G4double | GetCoeff () |
Definition at line 47 of file G4PionPlusField.hh.
G4PionPlusField::G4PionPlusField | ( | G4V3DNucleus * | nucleus, | |
G4double | coeff = 0.042 *CLHEP::fermi | |||
) |
Definition at line 48 of file G4PionPlusField.cc.
00049 : G4VNuclearField(nucleus) 00050 { 00051 theCoeff = coeff; 00052 }
G4PionPlusField::~G4PionPlusField | ( | ) | [virtual] |
G4double G4PionPlusField::GetBarrier | ( | ) | [virtual] |
Implements G4VNuclearField.
Definition at line 78 of file G4PionPlusField.cc.
References G4V3DNucleus::GetCharge(), G4V3DNucleus::GetMassNumber(), and G4VNuclearField::theNucleus.
Referenced by GetField().
00079 { 00080 G4int A = theNucleus->GetMassNumber(); 00081 G4int Z = theNucleus->GetCharge(); 00082 G4double coulombBarrier = (1.44/1.14) * MeV * Z / (1.0 + std::pow(A,1./3.)); 00083 return coulombBarrier; 00084 }
virtual G4double G4PionPlusField::GetCoeff | ( | ) | [inline, virtual] |
G4double G4PionPlusField::GetField | ( | const G4ThreeVector & | aPosition | ) | [virtual] |
Implements G4VNuclearField.
Definition at line 58 of file G4PionPlusField.cc.
References G4InuclSpecialFunctions::bindingEnergy(), GetBarrier(), G4NucleiProperties::GetBindingEnergy(), G4V3DNucleus::GetCharge(), G4VNuclearDensity::GetDensity(), G4V3DNucleus::GetMassNumber(), G4V3DNucleus::GetNuclearDensity(), G4ParticleDefinition::GetPDGMass(), G4INCL::Math::pi, G4PionPlus::PionPlus(), G4VNuclearField::radius, and G4VNuclearField::theNucleus.
00059 { 00060 // Field is 0 out of the nucleus! 00061 if(aPosition.mag() >= radius) return 0.0; 00062 00063 G4double pionPlusMass = G4PionPlus::PionPlus()->GetPDGMass(); 00064 00065 G4int A = theNucleus->GetMassNumber(); 00066 G4int Z = theNucleus->GetCharge(); 00067 G4double bindingEnergy = G4NucleiProperties::GetBindingEnergy(A, Z); 00068 G4double nucleusMass = Z*proton_mass_c2+(A-Z)*neutron_mass_c2+bindingEnergy; 00069 G4double reducedMass = pionPlusMass*nucleusMass/(pionPlusMass+nucleusMass); 00070 00071 G4double density = A*theNucleus->GetNuclearDensity()->GetDensity(aPosition); 00072 G4double nucleonMass = (proton_mass_c2+neutron_mass_c2)/2; 00073 00074 return 2.*pi*hbarc*hbarc/reducedMass*(1+pionPlusMass/nucleonMass)*theCoeff*density + GetBarrier(); 00075 }