| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
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8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
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10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
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17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
>> 26 //
>> 27 // $Id: G4Lambda.cc,v 1.17 2006/06/29 19:16:59 gunter Exp $
>> 28 // GEANT4 tag $Name: geant4-08-01-patch-01 $
>> 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 // ******************************************* 36 // **********************************************************************
32 // New impelemenataion as an utility class M 37 // New impelemenataion as an utility class M.Asai, 26 July 2004
33 // ------------------------------------------- 38 // ----------------------------------------------------------------------
34 39
35 #include "G4Lambda.hh" 40 #include "G4Lambda.hh"
36 <<
37 #include "G4DecayTable.hh" <<
38 #include "G4ParticleTable.hh" 41 #include "G4ParticleTable.hh"
>> 42
39 #include "G4PhaseSpaceDecayChannel.hh" 43 #include "G4PhaseSpaceDecayChannel.hh"
40 #include "G4PhysicalConstants.hh" << 44 #include "G4DecayTable.hh"
41 #include "G4String.hh" << 45
42 #include "G4SystemOfUnits.hh" << 46 // ######################################################################
43 #include "G4Types.hh" << 47 // ### Lambda ###
44 #include "G4VDecayChannel.hh" << 48 // ######################################################################
45 49
46 G4Lambda* G4Lambda::theInstance = nullptr; << 50 G4Lambda* G4Lambda::theInstance = 0;
47 51
48 G4Lambda* G4Lambda::Definition() 52 G4Lambda* G4Lambda::Definition()
49 { 53 {
50 if (theInstance != nullptr) return theInstan << 54 if (theInstance !=0) return theInstance;
51 const G4String name = "lambda"; 55 const G4String name = "lambda";
52 // search in particle table] 56 // search in particle table]
53 G4ParticleTable* pTable = G4ParticleTable::G 57 G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
54 G4ParticleDefinition* anInstance = pTable->F 58 G4ParticleDefinition* anInstance = pTable->FindParticle(name);
55 if (anInstance == nullptr) { << 59 if (anInstance ==0)
56 // create particle << 60 {
57 // << 61 // create particle
58 // Arguments for constructor are as fol << 62 //
59 // name mass << 63 // Arguments for constructor are as follows
60 // 2*spin parity C- << 64 // name mass width charge
61 // 2*Isospin 2*Isospin3 << 65 // 2*spin parity C-conjugation
62 // type lepton number ba << 66 // 2*Isospin 2*Isospin3 G-parity
63 // stable lifetime << 67 // type lepton number baryon number PDG encoding
64 // shortlived subType << 68 // stable lifetime decay table
65 << 69 // shortlived subType anti_encoding
66 // clang-format off << 70
67 anInstance = new G4ParticleDefinition( << 71 anInstance = new G4ParticleDefinition(
68 name, 1.115683*GeV, 2.501 << 72 name, 1.115684*GeV, 2.501e-12*MeV, 0.0,
69 1, +1, 73 1, +1, 0,
70 0, 0, 74 0, 0, 0,
71 "baryon", 0, 75 "baryon", 0, +1, 3122,
72 false, 0.2631*ns, << 76 false, 0.2632*ns, NULL,
73 false, "lambda"); 77 false, "lambda");
74 // clang-format on << 78 //create Decay Table
75 << 79 G4DecayTable* table = new G4DecayTable();
76 // Magnetic Moment << 80
77 G4double mN = eplus * hbar_Planck / 2. / ( << 81 // create decay channels
78 anInstance->SetPDGMagneticMoment(-0.613 * << 82 G4VDecayChannel** mode = new G4VDecayChannel*[2];
79 << 83 // lambda -> proton + pi-
80 // create Decay Table << 84 mode[0] = new G4PhaseSpaceDecayChannel("lambda",0.639,2,"proton","pi-");
81 auto table = new G4DecayTable(); << 85 // lambda -> neutron + pi0
82 << 86 mode[1] = new G4PhaseSpaceDecayChannel("lambda",0.358,2,"neutron","pi0");
83 // create decay channels << 87
84 auto mode = new G4VDecayChannel*[2]; << 88 for (G4int index=0; index <2; index++ ) table->Insert(mode[index]);
85 // lambda -> proton + pi- << 89 delete [] mode;
86 mode[0] = new G4PhaseSpaceDecayChannel("la << 90
87 // lambda -> neutron + pi0 << 91 anInstance->SetDecayTable(table);
88 mode[1] = new G4PhaseSpaceDecayChannel("la <<
89 <<
90 for (G4int index = 0; index < 2; index++) <<
91 table->Insert(mode[index]); <<
92 delete[] mode; <<
93 <<
94 anInstance->SetDecayTable(table); <<
95 } 92 }
96 theInstance = static_cast<G4Lambda*>(anInsta << 93 theInstance = reinterpret_cast<G4Lambda*>(anInstance);
97 return theInstance; 94 return theInstance;
98 } 95 }
99 96
100 G4Lambda* G4Lambda::LambdaDefinition() << 97 G4Lambda* G4Lambda::LambdaDefinition()
101 { << 98 {
102 return Definition(); 99 return Definition();
103 } 100 }
104 101
105 G4Lambda* G4Lambda::Lambda() << 102 G4Lambda* G4Lambda::Lambda()
106 { << 103 {
107 return Definition(); 104 return Definition();
108 } 105 }
>> 106
>> 107
109 108