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Please see the license in the file << 14 // * use. * 16 // * for the full disclaimer and the limitatio << 17 // * 15 // * * 18 // * This code implementation is the result << 16 // * This code implementation is the intellectual property of the * 19 // * technical work of the GEANT4 collaboratio << 17 // * GEANT4 collaboration. * 20 // * By using, copying, modifying or distri << 18 // * By copying, distributing or modifying the Program (or any work * 21 // * any work based on the software) you ag << 19 // * based on the Program) you indicate your acceptance of this * 22 // * use in resulting scientific publicati << 20 // * statement, and all its terms. * 23 // * acceptance of all terms of the Geant4 Sof << 24 // ******************************************* 21 // ******************************************************************** 25 // 22 // 26 // 23 // 27 // ------------------------------------------- 24 // ------------------------------------------------------------------- 28 // GEANT 4 class implementation file 25 // GEANT 4 class implementation file 29 // 26 // 30 // CERN, Geneva, Switzerland 27 // CERN, Geneva, Switzerland 31 // 28 // 32 // File name: G4PionPlusField.cc 29 // File name: G4PionPlusField.cc 33 // 30 // 34 // Author: Alessandro Brunengo (Al 31 // Author: Alessandro Brunengo (Alessandro.Brunengo@ge.infn.it) 35 // 32 // 36 // Creation date: 5 June 2000 33 // Creation date: 5 June 2000 37 // ------------------------------------------- 34 // ------------------------------------------------------------------- 38 << 39 #include "G4PionPlusField.hh" 35 #include "G4PionPlusField.hh" 40 #include "G4PhysicalConstants.hh" << 36 #include "G4NucleiPropertiesTable.hh" 41 #include "G4SystemOfUnits.hh" << 42 #include "G4NucleiProperties.hh" << 43 #include "G4VNuclearDensity.hh" 37 #include "G4VNuclearDensity.hh" 44 #include "G4FermiMomentum.hh" 38 #include "G4FermiMomentum.hh" 45 #include "G4PionPlus.hh" 39 #include "G4PionPlus.hh" 46 #include "G4HadTmpUtil.hh" 40 #include "G4HadTmpUtil.hh" 47 #include "G4Pow.hh" << 41 48 42 49 G4PionPlusField::G4PionPlusField(G4V3DNucleus 43 G4PionPlusField::G4PionPlusField(G4V3DNucleus * nucleus, G4double coeff) 50 : G4VNuclearField(nucleus) 44 : G4VNuclearField(nucleus) 51 { 45 { 52 theCoeff = coeff; 46 theCoeff = coeff; 53 } 47 } 54 48 55 49 56 G4PionPlusField::~G4PionPlusField() 50 G4PionPlusField::~G4PionPlusField() 57 { } 51 { } 58 52 >> 53 >> 54 const G4PionPlusField & G4PionPlusField::operator=(const G4PionPlusField &) >> 55 { >> 56 throw G4HadronicException(__FILE__, __LINE__, "G4PionPlusField::operator= meant not to be accessible"); >> 57 return *this; >> 58 } >> 59 >> 60 >> 61 G4int G4PionPlusField::operator==(const G4PionPlusField &) const >> 62 { >> 63 throw G4HadronicException(__FILE__, __LINE__, "G4PionPlusField::operator== meant not to be accessible"); >> 64 return 0; >> 65 } >> 66 >> 67 >> 68 G4int G4PionPlusField::operator!=(const G4PionPlusField &) const >> 69 { >> 70 throw G4HadronicException(__FILE__, __LINE__, "G4PionPlusField::operator!= meant not to be accessible"); >> 71 return 1; >> 72 } >> 73 >> 74 59 G4double G4PionPlusField::GetField(const G4Thr 75 G4double G4PionPlusField::GetField(const G4ThreeVector & aPosition) 60 { 76 { 61 // Field is 0 out of the nucleus! 77 // Field is 0 out of the nucleus! 62 if(aPosition.mag() >= radius) return 0.0; 78 if(aPosition.mag() >= radius) return 0.0; 63 79 64 G4double pionPlusMass = G4PionPlus::PionPlus 80 G4double pionPlusMass = G4PionPlus::PionPlus()->GetPDGMass(); 65 81 66 G4int A = theNucleus->GetMassNumber(); << 82 G4double A = theNucleus->GetMassNumber(); 67 G4int Z = theNucleus->GetCharge(); << 83 G4double Z = theNucleus->GetCharge(); 68 G4double bindingEnergy = G4NucleiProperties: << 84 G4double bindingEnergy = G4NucleiPropertiesTable::GetBindingEnergy(G4lrint(Z), G4lrint(A)); 69 G4double nucleusMass = Z*proton_mass_c2+(A-Z 85 G4double nucleusMass = Z*proton_mass_c2+(A-Z)*neutron_mass_c2+bindingEnergy; 70 G4double reducedMass = pionPlusMass*nucleusM 86 G4double reducedMass = pionPlusMass*nucleusMass/(pionPlusMass+nucleusMass); 71 87 72 G4double density = A*theNucleus->GetNuclearD 88 G4double density = A*theNucleus->GetNuclearDensity()->GetDensity(aPosition); 73 G4double nucleonMass = (proton_mass_c2+neutr 89 G4double nucleonMass = (proton_mass_c2+neutron_mass_c2)/2; 74 90 75 return 2.*pi*hbarc*hbarc/reducedMass*(1+pion 91 return 2.*pi*hbarc*hbarc/reducedMass*(1+pionPlusMass/nucleonMass)*theCoeff*density + GetBarrier(); 76 } 92 } 77 93 78 94 79 G4double G4PionPlusField::GetBarrier() 95 G4double G4PionPlusField::GetBarrier() 80 { 96 { 81 G4int A = theNucleus->GetMassNumber(); << 97 G4double A = theNucleus->GetMassNumber(); 82 G4int Z = theNucleus->GetCharge(); << 98 G4double Z = theNucleus->GetCharge(); 83 G4double coulombBarrier = (1.44/1.14) * MeV << 99 G4double coulombBarrier = (1.44/1.14) * MeV * Z / (1.0 + std::pow(A,1./3.)); 84 return coulombBarrier; 100 return coulombBarrier; 85 } 101 } 86 102