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1 // 1 //
2 // ******************************************* 2 // ********************************************************************
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
>> 26 //
>> 27 // $Id: G4AntiNeutron.cc 83749 2014-09-12 12:14:59Z gcosmo $
>> 28 // GEANT4 tag $Name: geant4-09-04-ref-00 $
>> 29 //
>> 30 //
26 // ------------------------------------------- 31 // ----------------------------------------------------------------------
27 // GEANT 4 class implementation file 32 // GEANT 4 class implementation file
28 // 33 //
29 // History: first implementation, based o 34 // History: first implementation, based on object model of
30 // 4th April 1996, G.Cosmo 35 // 4th April 1996, G.Cosmo
31 // H.Kurashige 7 July 36 // H.Kurashige 7 July 1996
32 // ******************************************* 37 // **********************************************************************
33 // New impelemenataion as an utility class M 38 // New impelemenataion as an utility class M.Asai, 26 July 2004
34 // ------------------------------------------- 39 // ----------------------------------------------------------------------
35 40
36 #include "G4AntiNeutron.hh" 41 #include "G4AntiNeutron.hh"
37 <<
38 #include "G4DecayTable.hh" <<
39 #include "G4NeutronBetaDecayChannel.hh" <<
40 #include "G4ParticleTable.hh" <<
41 #include "G4PhysicalConstants.hh" 42 #include "G4PhysicalConstants.hh"
42 #include "G4String.hh" <<
43 #include "G4SystemOfUnits.hh" 43 #include "G4SystemOfUnits.hh"
44 #include "G4Types.hh" << 44 #include "G4ParticleTable.hh"
45 #include "G4VDecayChannel.hh" <<
46 45
47 G4AntiNeutron* G4AntiNeutron::theInstance = nu << 46 #include "G4NeutronBetaDecayChannel.hh"
>> 47 #include "G4DecayTable.hh"
>> 48
>> 49 // ######################################################################
>> 50 // ### ANTI NEUTRON ###
>> 51 // ######################################################################
>> 52 G4AntiNeutron* G4AntiNeutron::theInstance = 0;
48 53
49 G4AntiNeutron* G4AntiNeutron::Definition() 54 G4AntiNeutron* G4AntiNeutron::Definition()
50 { 55 {
51 if (theInstance != nullptr) return theInstan << 56 if (theInstance !=0) return theInstance;
52 const G4String name = "anti_neutron"; 57 const G4String name = "anti_neutron";
53 // search in particle table] 58 // search in particle table]
54 G4ParticleTable* pTable = G4ParticleTable::G 59 G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
55 G4ParticleDefinition* anInstance = pTable->F 60 G4ParticleDefinition* anInstance = pTable->FindParticle(name);
56 if (anInstance == nullptr) { << 61 if (anInstance ==0)
57 // create particle << 62 {
58 // << 63 // create particle
59 // Arguments for constructor are as fol << 64 //
60 // name mass << 65 // Arguments for constructor are as follows
61 // 2*spin parity C- << 66 // name mass width charge
62 // 2*Isospin 2*Isospin3 << 67 // 2*spin parity C-conjugation
63 // type lepton number ba << 68 // 2*Isospin 2*Isospin3 G-parity
64 // stable lifetime << 69 // type lepton number baryon number PDG encoding
65 // shortlived subType << 70 // stable lifetime decay table
66 // use constants in CLHEP << 71 // shortlived subType anti_encoding
67 // static const double neutron_mass_c2 = << 72 // use constants in CLHEP
68 // clang-format off << 73 // static const double neutron_mass_c2 = 939.56563 * MeV;
>> 74
69 anInstance = new G4ParticleDefinition( 75 anInstance = new G4ParticleDefinition(
70 name, neutron_mass_c2, 7.478e << 76 name, neutron_mass_c2, 7.477e-28*GeV, 0.0,
71 1, +1, 0, 77 1, +1, 0,
72 1, +1, 0, 78 1, +1, 0,
73 "baryon", 0, - 79 "baryon", 0, -1, -2112,
74 false, 880.2*second, nullptr, << 80 true, 880.3*second, NULL,
75 false, "nucleon", 211 81 false, "nucleon", 2112
76 ); 82 );
77 // clang-format on <<
78 <<
79 // Magnetic Moment 83 // Magnetic Moment
80 G4double mN = eplus * hbar_Planck / 2. / ( << 84 G4double mN = eplus*hbar_Planck/2./(proton_mass_c2 /c_squared);
81 anInstance->SetPDGMagneticMoment(1.9130427 << 85 anInstance->SetPDGMagneticMoment( 1.9130427 * mN);
82 // create Decay Table << 86 //create Decay Table
83 auto table = new G4DecayTable(); << 87 G4DecayTable* table = new G4DecayTable();
84 // create a decay channel 88 // create a decay channel
85 G4VDecayChannel* mode = new G4NeutronBetaD << 89 G4VDecayChannel* mode = new G4NeutronBetaDecayChannel("anti_neutron",1.00);
86 table->Insert(mode); 90 table->Insert(mode);
87 anInstance->SetDecayTable(table); 91 anInstance->SetDecayTable(table);
>> 92
88 } 93 }
89 theInstance = static_cast<G4AntiNeutron*>(an << 94 theInstance = reinterpret_cast<G4AntiNeutron*>(anInstance);
90 return theInstance; 95 return theInstance;
91 } 96 }
92 97
93 G4AntiNeutron* G4AntiNeutron::AntiNeutronDefin << 98 G4AntiNeutron* G4AntiNeutron::AntiNeutronDefinition()
94 { 99 {
95 return Definition(); 100 return Definition();
96 } 101 }
97 102
98 G4AntiNeutron* G4AntiNeutron::AntiNeutron() << 103 G4AntiNeutron* G4AntiNeutron::AntiNeutron()
99 { 104 {
100 return Definition(); 105 return Definition();
101 } 106 }
>> 107
>> 108
102 109