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G4Positron.cc
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26 //
27 // $Id: G4Positron.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 "G4Positron.hh"
40 #include "G4PhysicalConstants.hh"
41 #include "G4SystemOfUnits.hh"
42 #include "G4ParticleTable.hh"
43 
44 // ######################################################################
45 // ### POSITRON ###
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  // use constants in CLHEP
68  // static const double electron_mass_c2 = 0.51099906 * MeV;
69 
70  anInstance = new G4ParticleDefinition(
71  name, electron_mass_c2, 0.0*MeV, +1.*eplus,
72  1, 0, 0,
73  0, 0, 0,
74  "lepton", -1, 0, -11,
75  true, -1.0, NULL,
76  false, "e"
77  );
78 
79  // Bohr Magnetron
81 
82  anInstance->SetPDGMagneticMoment( muB * 1.00115965218076 );
83 
84  }
85  theInstance = reinterpret_cast<G4Positron*>(anInstance);
86  return theInstance;
87 }
88 
90 {
91  return Definition();
92 }
93 
95 {
96  return Definition();
97 }
98 
99 
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
static G4Positron * theInstance
Definition: G4Positron.hh:54
const XML_Char * name
Definition: expat.h:151
static constexpr double hbar_Planck
static G4ParticleTable * GetParticleTable()
static constexpr double MeV
Definition: G4SIunits.hh:214
static constexpr double c_squared
double G4double
Definition: G4Types.hh:76
static constexpr double electron_mass_c2
static G4Positron * Positron()
Definition: G4Positron.cc:94
static constexpr double eplus
Definition: G4SIunits.hh:199
static G4Positron * PositronDefinition()
Definition: G4Positron.cc:89
void SetPDGMagneticMoment(G4double mageticMoment)
static G4Positron * Definition()
Definition: G4Positron.cc:49