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1 //
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18 // * This code implementation is the result of the scientific and *
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24 // ********************************************************************
25 //
26 // ----------------------------------------------------------------------
27 // GEANT 4 class implementation file
28 //
29 // History: first implementation, based on object model of
30 // 4th April 1996, G.Cosmo
31 // **********************************************************************
32 // New impelemenataion as an utility class M.Asai, 26 July 2004
33 // ----------------------------------------------------------------------
34
35 #include "G4MuonMinus.hh"
36
37 #include "G4DecayTable.hh"
38 #include "G4MuonDecayChannel.hh"
39 #include "G4ParticleTable.hh"
40 #include "G4PhysicalConstants.hh"
41 #include "G4String.hh"
42 #include "G4SystemOfUnits.hh"
43 #include "G4Types.hh"
44 #include "G4VDecayChannel.hh"
45
46 G4MuonMinus* G4MuonMinus::theInstance = nullptr;
47
48 G4MuonMinus* G4MuonMinus::Definition()
49 {
50 if (theInstance != nullptr) return theInstance;
51 const G4String name = "mu-";
52 // search in particle table]
53 G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
54 G4ParticleDefinition* anInstance = pTable->FindParticle(name);
55 if (anInstance == nullptr) {
56 // create particle
57 //
58 // Arguments for constructor are as follows
59 // name mass width charge
60 // 2*spin parity C-conjugation
61 // 2*Isospin 2*Isospin3 G-parity
62 // type lepton number baryon number PDG encoding
63 // stable lifetime decay table
64 // shortlived subType anti_encoding
65
66 // clang-format off
67 anInstance = new G4ParticleDefinition(
68 name, 0.1056583715*GeV, 2.99598e-16*MeV, -1.*eplus,
69 1, 0, 0,
70 0, 0, 0,
71 "lepton", 1, 0, 13,
72 false, 2196.98*ns, nullptr,
73 false, "mu"
74 );
75 // clang-format on
76
77 // Bohr Magnetron
78 G4double muB = -0.5 * eplus * hbar_Planck / (anInstance->GetPDGMass() / c_squared);
79
80 anInstance->SetPDGMagneticMoment(muB * 1.0011659209);
81
82 // create Decay Table
83 auto table = new G4DecayTable();
84
85 // create a decay channel
86 G4VDecayChannel* mode = new G4MuonDecayChannel("mu-", 1.00);
87 table->Insert(mode);
88 anInstance->SetDecayTable(table);
89 }
90 theInstance = static_cast<G4MuonMinus*>(anInstance);
91 return theInstance;
92 }
93
94 G4MuonMinus* G4MuonMinus::MuonMinusDefinition()
95 {
96 return Definition();
97 }
98
99 G4MuonMinus* G4MuonMinus::MuonMinus()
100 {
101 return Definition();
102 }
103