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1 // 1 //
2 // ******************************************* 2 // ********************************************************************
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4 // * 4 // * *
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15 // * use. Please see the license in the file << 14 // * use. *
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17 // * 15 // * *
18 // * This code implementation is the result << 16 // * This code implementation is the intellectual property of the *
19 // * technical work of the GEANT4 collaboratio << 17 // * GEANT4 collaboration. *
20 // * By using, copying, modifying or distri << 18 // * By copying, distributing or modifying the Program (or any work *
21 // * any work based on the software) you ag << 19 // * based on the Program) you indicate your acceptance of this *
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24 // ******************************************* 21 // ********************************************************************
25 // 22 //
>> 23 //
>> 24 // $Id: G4Neutron.cc,v 1.15 2003/06/16 16:57:07 gunter Exp $
>> 25 // GEANT4 tag $Name: geant4-05-02-patch-01 $
>> 26 //
>> 27 //
26 // ------------------------------------------- 28 // ----------------------------------------------------------------------
27 // GEANT 4 class implementation file 29 // GEANT 4 class implementation file
28 // 30 //
29 // History: first implementation, based o 31 // History: first implementation, based on object model of
30 // 4th April 1996, G.Cosmo 32 // 4th April 1996, G.Cosmo
31 // H.Kurashige 7 July 33 // H.Kurashige 7 July 1996
32 // add neutron life time Oct 17 2000 << 34 // add neutron life time Oct 17 2000
33 // ******************************************* 35 // **********************************************************************
34 // New impelemenataion as an utility class M << 36 #include <fstream>
35 // ------------------------------------------- << 37 #include <iomanip>
36 38
37 #include "G4Neutron.hh" 39 #include "G4Neutron.hh"
38 <<
39 #include "G4DecayTable.hh" <<
40 #include "G4NeutronBetaDecayChannel.hh" 40 #include "G4NeutronBetaDecayChannel.hh"
41 #include "G4ParticleTable.hh" << 41 #include "G4DecayTable.hh"
42 #include "G4PhysicalConstants.hh" <<
43 #include "G4String.hh" <<
44 #include "G4SystemOfUnits.hh" <<
45 #include "G4Types.hh" <<
46 #include "G4VDecayChannel.hh" <<
47 <<
48 G4Neutron* G4Neutron::theInstance = nullptr; <<
49 42
50 G4Neutron* G4Neutron::Definition() << 43 // ######################################################################
>> 44 // ### NEUTRON ###
>> 45 // ######################################################################
>> 46
>> 47 G4Neutron::G4Neutron(
>> 48 const G4String& aName, G4double mass,
>> 49 G4double width, G4double charge,
>> 50 G4int iSpin, G4int iParity,
>> 51 G4int iConjugation, G4int iIsospin,
>> 52 G4int iIsospin3, G4int gParity,
>> 53 const G4String& pType, G4int lepton,
>> 54 G4int baryon, G4int encoding,
>> 55 G4bool stable, G4double lifetime,
>> 56 G4DecayTable *decaytable )
>> 57 : G4VBaryon( aName,mass,width,charge,iSpin,iParity,
>> 58 iConjugation,iIsospin,iIsospin3,gParity,pType,
>> 59 lepton,baryon,encoding,stable,lifetime,decaytable )
51 { 60 {
52 if (theInstance != nullptr) return theInstan << 61 SetParticleSubType("nucleon");
53 const G4String name = "neutron"; << 62
54 // search in particle table] << 63 //create Decay Table
55 G4ParticleTable* pTable = G4ParticleTable::G << 64 G4DecayTable* table = GetDecayTable();
56 auto anInstance = static_cast<G4Ions*>(pTabl << 65 if (table!=NULL) delete table;
57 if (anInstance == nullptr) { << 66 table = new G4DecayTable();
58 // create particle << 67
59 // << 68 // create a decay channel
60 // Arguments for constructor are as fol << 69 G4VDecayChannel* mode = new G4NeutronBetaDecayChannel("neutron",1.00);
61 // name mass << 70 table->Insert(mode);
62 // 2*spin parity C- << 71
63 // 2*Isospin 2*Isospin3 << 72 SetDecayTable(table);
64 // type lepton number ba << 73 }
65 // stable lifetime << 74
66 // shortlived subType << 75 // ......................................................................
67 // use constants in CLHEP << 76 // ... static member definitions ...
68 // static const double neutron_mass_c2 = << 77 // ......................................................................
69 << 78 //
70 // clang-format off << 79 // Arguments for constructor are as follows
71 anInstance = new G4Ions( << 80 // name mass width charge
72 name, neutron_mass_c2, 7.478e << 81 // 2*spin parity C-conjugation
>> 82 // 2*Isospin 2*Isospin3 G-parity
>> 83 // type lepton number baryon number PDG encoding
>> 84 // stable lifetime decay table
>> 85
>> 86 G4Neutron G4Neutron::theNeutron(
>> 87 "neutron", 0.93956563*GeV, 0.0*MeV, 0.0,
73 1, +1, 0, 88 1, +1, 0,
74 1, -1, 0, 89 1, -1, 0,
75 "baryon", 0, + 90 "baryon", 0, +1, 2112,
76 false, 880.2*second, nullptr, << 91 true, 886.7*second, NULL
77 false, "nucleon", -2112, << 92 );
78 0.0, 0 <<
79 ); <<
80 // clang-format on <<
81 <<
82 // Magnetic Moment <<
83 G4double mN = eplus * hbar_Planck / 2. / ( <<
84 anInstance->SetPDGMagneticMoment(-1.913042 <<
85 // create Decay Table <<
86 auto table = new G4DecayTable(); <<
87 // create a decay channel <<
88 G4VDecayChannel* mode = new G4NeutronBetaD <<
89 table->Insert(mode); <<
90 anInstance->SetDecayTable(table); <<
91 } <<
92 theInstance = static_cast<G4Neutron*>(anInst <<
93 return theInstance; <<
94 } <<
95 93
96 G4Neutron* G4Neutron::NeutronDefinition() << 94 G4Neutron* G4Neutron::NeutronDefinition(){return &theNeutron;}
97 { << 95 G4Neutron* G4Neutron::Neutron(){return &theNeutron;}
98 return Definition(); <<
99 } <<
100 96
101 G4Neutron* G4Neutron::Neutron() <<
102 { <<
103 return Definition(); <<
104 } <<
105 97