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24 // ********************************************************************
25 //
26 // ------------------------------------------------------------
27 // GEANT 4 class header file
28 //
29 // History:
30 // 1st March 2007 creation by L. Desorgher based on a modification of G4Electron
31 // 06 Nov. 2008 modified for Geant4-09-02 by Hisaya Kurashige
32 //
33 //-------------------------------------------------------------
34 //
35
36 #include "G4AdjointElectron.hh"
37
38 #include "G4ParticleTable.hh"
39 #include "G4PhysicalConstants.hh"
40 #include "G4String.hh"
41 #include "G4SystemOfUnits.hh"
42 #include "G4Types.hh"
43
44 G4AdjointElectron* G4AdjointElectron::theInstance = nullptr;
45
46 G4AdjointElectron* G4AdjointElectron::Definition()
47 {
48 if (theInstance != nullptr) return theInstance;
49 const G4String name = "adj_e-";
50 // search in particle table]
51 G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
52 G4ParticleDefinition* anInstance = pTable->FindParticle(name);
53 if (anInstance == nullptr) {
54 // create particle
55 //
56 // Arguments for constructor are as follows
57 // name mass width charge
58 // 2*spin parity C-conjugation
59 // 2*Isospin 2*Isospin3 G-parity
60 // type lepton number baryon number PDG encoding
61 // stable lifetime decay table
62 // shortlived subType anti_encoding
63
64 // use constants in CLHEP
65 // static const double electron_mass_c2 = 0.51099906 * MeV;
66
67 // NOTE : electric charge and magnetic moment is opposite
68 // compared with real electron, because adjoint particles
69 // are used to back-trace
70 // clang-format off
71 anInstance = new G4ParticleDefinition(
72 name, electron_mass_c2, 0.0*MeV, 1.*eplus,
73 1, 0, 0,
74 0, 0, 0,
75 "adjoint", 1, 0, 10000011,
76 true, -1.0, nullptr,
77 false, "adj_lepton"
78 );
79 // clang-format on
80 // Bohr Magnetron
81 G4double muB = 0.5 * eplus * hbar_Planck / (electron_mass_c2 / c_squared);
82 anInstance->SetPDGMagneticMoment(muB * 2. * 1.0011596521859);
83 }
84 theInstance = static_cast<G4AdjointElectron*>(anInstance);
85 return theInstance;
86 }
87
88 G4AdjointElectron* G4AdjointElectron::AdjointElectronDefinition()
89 {
90 return Definition();
91 }
92
93 G4AdjointElectron* G4AdjointElectron::AdjointElectron()
94 {
95 return Definition();
96 }
97