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G4SigmaMinus.cc
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28 //
29 // ----------------------------------------------------------------------
30 // GEANT 4 class implementation file
31 //
32 // History: first implementation, based on object model of
33 // 4th April 1996, G.Cosmo
34 // **********************************************************************
35 // New impelemenataion as an utility class M.Asai, 26 July 2004
36 // ----------------------------------------------------------------------
37 
38 #include "G4SigmaMinus.hh"
39 #include "G4PhysicalConstants.hh"
40 #include "G4SystemOfUnits.hh"
41 #include "G4ParticleTable.hh"
42 
44 #include "G4DecayTable.hh"
45 
46 // ######################################################################
47 // ### SigmaMinus ###
48 // ######################################################################
49 
51 
53 {
54  if (theInstance !=0) return theInstance;
55  const G4String name = "sigma-";
56  // search in particle table]
58  G4ParticleDefinition* anInstance = pTable->FindParticle(name);
59  if (anInstance ==0)
60  {
61  // create particle
62  //
63  // Arguments for constructor are as follows
64  // name mass width charge
65  // 2*spin parity C-conjugation
66  // 2*Isospin 2*Isospin3 G-parity
67  // type lepton number baryon number PDG encoding
68  // stable lifetime decay table
69  // shortlived subType anti_encoding
70 
71  anInstance = new G4ParticleDefinition(
72  name, 1.197449*GeV, 4.45e-12*MeV, -1*eplus,
73  1, +1, 0,
74  2, -2, 0,
75  "baryon", 0, +1, 3112,
76  false, 0.1479*ns, NULL,
77  false, "sigma");
78 
79  // Magnetic Moment
81  anInstance->SetPDGMagneticMoment( -1.160 * mN);
82 
83  //create Decay Table
84  G4DecayTable* table = new G4DecayTable();
85 
86  // create decay channels
87  G4VDecayChannel** mode = new G4VDecayChannel*[1];
88  // sigma- -> neutron + pi-
89  mode[0] = new G4PhaseSpaceDecayChannel("sigma-",1.00,2,"neutron","pi-");
90 
91  for (G4int index=0; index <1; index++ ) table->Insert(mode[index]);
92  delete [] mode;
93 
94  anInstance->SetDecayTable(table);
95  }
96  theInstance = reinterpret_cast<G4SigmaMinus*>(anInstance);
97  return theInstance;
98 }
99 
101 {
102  return Definition();
103 }
104 
106 {
107  return Definition();
108 }
109