| 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 *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
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 *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
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 *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
25 // 25 //
>> 26 //
>> 27 //
>> 28 //
26 // ------------------------------------------- 29 // ----------------------------------------------------------------------
27 // GEANT 4 class implementation file 30 // GEANT 4 class implementation file
28 // 31 //
29 // History: first implementation, based o 32 // History: first implementation, based on object model of
30 // 4th April 1996, G.Cosmo 33 // 4th April 1996, G.Cosmo
31 // H.Kurashige 34 // H.Kurashige 7 Jul 96
32 // ******************************************* 35 // **********************************************************************
33 // New impelemenataion as an utility class M 36 // New impelemenataion as an utility class M.Asai, 26 July 2004
34 // ------------------------------------------- 37 // ----------------------------------------------------------------------
35 // Update mass (PDG2006) Oct << 38 // Update mass (PDG2006) Oct. 11 2006 H.Kurashige
36 // 39 //
37 40
38 #include "G4Eta.hh" 41 #include "G4Eta.hh"
39 << 42 #include "G4SystemOfUnits.hh"
40 #include "G4DecayTable.hh" <<
41 #include "G4ParticleTable.hh" 43 #include "G4ParticleTable.hh"
>> 44
42 #include "G4PhaseSpaceDecayChannel.hh" 45 #include "G4PhaseSpaceDecayChannel.hh"
43 #include "G4String.hh" << 46 #include "G4DecayTable.hh"
44 #include "G4SystemOfUnits.hh" <<
45 #include "G4Types.hh" <<
46 #include "G4VDecayChannel.hh" <<
47 47
48 G4Eta* G4Eta::theInstance = nullptr; << 48 // ######################################################################
>> 49 // ### ETA ###
>> 50 // ######################################################################
>> 51
>> 52 G4Eta* G4Eta::theInstance = 0;
49 53
50 G4Eta* G4Eta::Definition() 54 G4Eta* G4Eta::Definition()
51 { 55 {
52 if (theInstance != nullptr) return theInstan << 56 if (theInstance !=0) return theInstance;
53 const G4String name = "eta"; 57 const G4String name = "eta";
54 // search in particle table] 58 // search in particle table]
55 G4ParticleTable* pTable = G4ParticleTable::G 59 G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
56 G4ParticleDefinition* anInstance = pTable->F 60 G4ParticleDefinition* anInstance = pTable->FindParticle(name);
57 if (anInstance == nullptr) { << 61 if (anInstance ==0)
58 // create particle << 62 {
59 // << 63 // create particle
60 // Arguments for constructor are as fol << 64 //
61 // name mass << 65 // Arguments for constructor are as follows
62 // 2*spin parity C- << 66 // name mass width charge
63 // 2*Isospin 2*Isospin3 << 67 // 2*spin parity C-conjugation
64 // type lepton number ba << 68 // 2*Isospin 2*Isospin3 G-parity
65 // stable lifetime << 69 // type lepton number baryon number PDG encoding
66 // shortlived subType << 70 // stable lifetime decay table
>> 71 // shortlived subType anti_encoding
67 72
68 // clang-format off <<
69 anInstance = new G4ParticleDefinition( 73 anInstance = new G4ParticleDefinition(
70 name, 0.547862*GeV, 1 74 name, 0.547862*GeV, 1.31*keV, 0.0,
71 0, -1, 75 0, -1, +1,
72 0, 0, 76 0, 0, +1,
73 "meson", 0, 77 "meson", 0, 0, 221,
74 false, 0.0*ns, << 78 false, 0.0*ns, NULL,
75 false, "eta", 79 false, "eta", 221);
76 // clang-format on << 80 //create Decay Table
>> 81 G4DecayTable* table = new G4DecayTable();
77 82
78 // create Decay Table << 83 // create decay channels
79 auto table = new G4DecayTable(); << 84 G4VDecayChannel** mode = new G4VDecayChannel*[4];
>> 85 // eta -> gamma + gamma
>> 86 mode[0] = new G4PhaseSpaceDecayChannel("eta",0.3942,2,"gamma","gamma");
>> 87 // eta -> pi0 + pi0 + pi0
>> 88 mode[1] = new G4PhaseSpaceDecayChannel("eta",0.3256,3,"pi0","pi0","pi0");
>> 89 // eta -> pi0 + pi+ + pi-
>> 90 mode[2] = new G4PhaseSpaceDecayChannel("eta",0.226,3,"pi0","pi+","pi-");
>> 91 // eta -> gamma + pi+ + pi-
>> 92 mode[3] = new G4PhaseSpaceDecayChannel("eta",0.0468,3,"gamma","pi+","pi-");
80 93
81 // create decay channels << 94 for (G4int index=0; index <4; index++ ) table->Insert(mode[index]);
82 auto mode = new G4VDecayChannel*[4]; << 95 delete [] mode;
83 // eta -> gamma + gamma <<
84 mode[0] = new G4PhaseSpaceDecayChannel("et <<
85 // eta -> pi0 + pi0 + pi0 <<
86 mode[1] = new G4PhaseSpaceDecayChannel("et <<
87 // eta -> pi0 + pi+ + pi- <<
88 mode[2] = new G4PhaseSpaceDecayChannel("et <<
89 // eta -> gamma + pi+ + pi- <<
90 mode[3] = new G4PhaseSpaceDecayChannel("et <<
91 <<
92 for (G4int index = 0; index < 4; index++) <<
93 table->Insert(mode[index]); <<
94 delete[] mode; <<
95 96
96 anInstance->SetDecayTable(table); << 97 anInstance->SetDecayTable(table);
97 } 98 }
98 theInstance = static_cast<G4Eta*>(anInstance << 99 theInstance = reinterpret_cast<G4Eta*>(anInstance);
99 return theInstance; 100 return theInstance;
100 } 101 }
101 102
102 G4Eta* G4Eta::EtaDefinition() << 103 G4Eta* G4Eta::EtaDefinition()
103 { 104 {
104 return Definition(); 105 return Definition();
105 } 106 }
106 107
107 G4Eta* G4Eta::Eta() << 108 G4Eta* G4Eta::Eta()
108 { 109 {
109 return Definition(); 110 return Definition();
110 } 111 }
>> 112
111 113