Geant4  10.02.p01
G4Electron.cc
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27 // $Id: G4Electron.cc 69015 2013-04-15 09:46:48Z gcosmo $
28 //
29 //
30 // ----------------------------------------------------------------------
31 // GEANT 4 class implementation file
32 //
33 // History: first implementation, based on object model of
34 // 4th April 1996, G.Cosmo
35 // **********************************************************************
36 // New impelemenataion as an utility class M.Asai, 26 July 2004
37 // ----------------------------------------------------------------------
38 
39 #include "G4Electron.hh"
40 #include "G4PhysicalConstants.hh"
41 #include "G4SystemOfUnits.hh"
42 #include "G4ParticleTable.hh"
43 
44 // ######################################################################
45 // ### ELECTRON ###
46 // ######################################################################
48 
50 {
51  if (theInstance !=0) return theInstance;
52  const G4String name = "e-";
53  // search in particle table]
55  G4ParticleDefinition* anInstance = pTable->FindParticle(name);
56  if (anInstance ==0)
57  {
58  // create particle
59  //
60  // Arguments for constructor are as follows
61  // name mass width charge
62  // 2*spin parity C-conjugation
63  // 2*Isospin 2*Isospin3 G-parity
64  // type lepton number baryon number PDG encoding
65  // stable lifetime decay table
66  // shortlived subType anti_encoding
67 
68  // use constants in CLHEP
69  // static const double electron_mass_c2 = 0.51099906 * MeV;
70 
71  anInstance = new G4ParticleDefinition(
72  name, electron_mass_c2, 0.0*MeV, -1.*eplus,
73  1, 0, 0,
74  0, 0, 0,
75  "lepton", 1, 0, 11,
76  true, -1.0, NULL,
77  false, "e"
78  );
79  // Bohr Magnetron
80  G4double muB = -0.5*eplus*hbar_Planck/(electron_mass_c2/c_squared) ;
81 
82  anInstance->SetPDGMagneticMoment( muB * 1.00115965218076 );
83 
84  }
85  theInstance = reinterpret_cast<G4Electron*>(anInstance);
86  return theInstance;
87 }
88 
90 {
91  return Definition();
92 }
93 
95 {
96  return Definition();
97 }
98 
99 
static G4Electron * ElectronDefinition()
Definition: G4Electron.cc:89
static const double MeV
Definition: G4SIunits.hh:211
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
G4String name
Definition: TRTMaterials.hh:40
static G4Electron * Definition()
Definition: G4Electron.cc:49
static G4Electron * theInstance
Definition: G4Electron.hh:53
static G4ParticleTable * GetParticleTable()
static G4Electron * Electron()
Definition: G4Electron.cc:94
double G4double
Definition: G4Types.hh:76
static const double eplus
Definition: G4SIunits.hh:196
void SetPDGMagneticMoment(G4double mageticMoment)