Geant4-11
G4Gamma.cc
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29// ----------------------------------------------------------------------
30// GEANT 4 class implementation file
31//
32// History: first implementation, based on object model of
33// 4-th April 1996, G.Cosmo
34// ****************************************************************
35// New impelemenataion as an utility class H.Kurashige, 14 July 2004
36// ----------------------------------------------------------------
37
38#include "G4Gamma.hh"
39#include "G4SystemOfUnits.hh"
40#include "G4ParticleTable.hh"
41
42// ######################################################################
43// ### GAMMA ###
44// ######################################################################
46
47
49{
50 if (theInstance !=0) return theInstance;
51
52 const G4String name = "gamma";
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 anInstance = new G4ParticleDefinition(
68 name, 0.0*MeV, 0.0*MeV, 0.0,
69 2, -1, -1,
70 0, 0, 0,
71 "gamma", 0, 0, 22,
72 true, -1.0, NULL,
73 false, "photon", 22
74 );
75 }
76 theInstance = reinterpret_cast<G4Gamma*>(anInstance);
77 return theInstance;
78}
79
81{
82 return Definition();
83}
84
86{
87 return Definition();
88}
static constexpr double MeV
Definition: G4SIunits.hh:200
static G4Gamma * GammaDefinition()
Definition: G4Gamma.cc:80
static G4Gamma * Gamma()
Definition: G4Gamma.cc:85
static G4Gamma * Definition()
Definition: G4Gamma.cc:48
static G4Gamma * theInstance
Definition: G4Gamma.hh:52
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
static G4ParticleTable * GetParticleTable()
const char * name(G4int ptype)