Geant4 Cross Reference |
1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 // 27 // ------------------------------------------- 28 // GEANT 4 class implementation file 29 // 30 // CERN, Geneva, Switzerland 31 // 32 // File name: G4AntiProtonField.cc 33 // 34 // Author: Alessandro Brunengo (Al 35 // 36 // Creation date: 5 June 2000 37 // ------------------------------------------- 38 39 #include "G4AntiProtonField.hh" 40 #include "G4PhysicalConstants.hh" 41 #include "G4SystemOfUnits.hh" 42 #include "G4NucleiProperties.hh" 43 #include "G4VNuclearDensity.hh" 44 #include "G4FermiMomentum.hh" 45 #include "G4ParticleDefinition.hh" 46 #include "G4AntiProton.hh" 47 #include "G4HadTmpUtil.hh" 48 #include "G4Pow.hh" 49 50 G4AntiProtonField::G4AntiProtonField(G4V3DNucl 51 : G4VNuclearField(nucleus) 52 { 53 theCoeff = coeff; 54 } 55 56 57 G4AntiProtonField::~G4AntiProtonField() 58 { } 59 60 61 62 63 G4double G4AntiProtonField::GetField(const G4T 64 { 65 // Field is 0 out of the nucleus! 66 if(aPosition.mag() >= radius) return 0.0; 67 68 const G4ParticleDefinition *anAntiProton = G 69 G4double antiProtonMass = anAntiProton->GetP 70 71 G4int A = theNucleus->GetMassNumber(); 72 G4int Z = theNucleus->GetCharge(); 73 G4double bindingEnergy = G4NucleiProperties: 74 G4double nucleusMass = Z*proton_mass_c2+(A-Z 75 G4double reducedMass = antiProtonMass*nucleu 76 77 G4double density = theNucleus->GetNuclearDen 78 79 return -2.*pi*hbarc*hbarc/reducedMass*(2.0)* 80 } 81 82 83 G4double G4AntiProtonField::GetBarrier() 84 { 85 G4int A = theNucleus->GetMassNumber(); 86 G4int Z = theNucleus->GetCharge(); 87 G4double coulombBarrier = (1.44/1.14) * MeV 88 return -coulombBarrier; 89 } 90 91 92 93 94 95 96 97