| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
5 // * The Geant4 software is copyright of th
6 // * the Geant4 Collaboration. It is provided
7 // * conditions of the Geant4 Software License
8 // * LICENSE and available at http://cern.ch/
9 // * include a list of copyright holders.
10 // *
11 // * Neither the authors of this software syst
12 // * institutes,nor the agencies providing fin
13 // * work make any representation or warran
14 // * regarding this software system or assum
15 // * use. Please see the license in the file
16 // * for the full disclaimer and the limitatio
17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
20 // * By using, copying, modifying or distri
21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 // -------------------------------------------
27 // GEANT 4 class implementation file
28 //
29 // History: first implementation, based o
30 // 4th April 1996, G.Cosmo
31 // H.Kurashige 7 July
32 // *******************************************
33 // New impelemenataion as an utility class M
34 // -------------------------------------------
35
36 #include "G4AntiNeutron.hh"
37
38 #include "G4DecayTable.hh"
39 #include "G4NeutronBetaDecayChannel.hh"
40 #include "G4ParticleTable.hh"
41 #include "G4PhysicalConstants.hh"
42 #include "G4String.hh"
43 #include "G4SystemOfUnits.hh"
44 #include "G4Types.hh"
45 #include "G4VDecayChannel.hh"
46
47 G4AntiNeutron* G4AntiNeutron::theInstance = nu
48
49 G4AntiNeutron* G4AntiNeutron::Definition()
50 {
51 if (theInstance != nullptr) return theInstan
52 const G4String name = "anti_neutron";
53 // search in particle table]
54 G4ParticleTable* pTable = G4ParticleTable::G
55 G4ParticleDefinition* anInstance = pTable->F
56 if (anInstance == nullptr) {
57 // create particle
58 //
59 // Arguments for constructor are as fol
60 // name mass
61 // 2*spin parity C-
62 // 2*Isospin 2*Isospin3
63 // type lepton number ba
64 // stable lifetime
65 // shortlived subType
66 // use constants in CLHEP
67 // static const double neutron_mass_c2 =
68 // clang-format off
69 anInstance = new G4ParticleDefinition(
70 name, neutron_mass_c2, 7.478e
71 1, +1, 0,
72 1, +1, 0,
73 "baryon", 0, -
74 false, 880.2*second, nullptr,
75 false, "nucleon", 211
76 );
77 // clang-format on
78
79 // Magnetic Moment
80 G4double mN = eplus * hbar_Planck / 2. / (
81 anInstance->SetPDGMagneticMoment(1.9130427
82 // create Decay Table
83 auto table = new G4DecayTable();
84 // create a decay channel
85 G4VDecayChannel* mode = new G4NeutronBetaD
86 table->Insert(mode);
87 anInstance->SetDecayTable(table);
88 }
89 theInstance = static_cast<G4AntiNeutron*>(an
90 return theInstance;
91 }
92
93 G4AntiNeutron* G4AntiNeutron::AntiNeutronDefin
94 {
95 return Definition();
96 }
97
98 G4AntiNeutron* G4AntiNeutron::AntiNeutron()
99 {
100 return Definition();
101 }
102