Geant4-11
G4AntiSigmaZero.cc
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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 "G4AntiSigmaZero.hh"
39#include "G4SystemOfUnits.hh"
41#include "G4ParticleTable.hh"
42
44#include "G4DecayTable.hh"
45
46// ######################################################################
47// ### AntiSigmaZero ###
48// ######################################################################
49
51
53{
54 if (theInstance !=0) return theInstance;
55 const G4String name = "anti_sigma0";
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, 1.192642*GeV, 8.9e-3*MeV, 0.0,
73 1, +1, 0,
74 2, 0, 0,
75 "baryon", 0, -1, -3212,
76 false, 7.4e-11*ns, NULL,
77 false, "sigma");
78
79 // Life time is given from width
80 anInstance->SetPDGLifeTime( hbar_Planck/(anInstance->GetPDGWidth()) );
81
82 //create Decay Table
83 G4DecayTable* table = new G4DecayTable();
84
85 // create decay channels
86 // anti_sigma0 -> anti_lambda + gamma
87 G4VDecayChannel* mode = new G4PhaseSpaceDecayChannel("anti_sigma0",1.000,2,"anti_lambda","gamma");
88
89 table->Insert(mode);
90
91 anInstance->SetDecayTable(table);
92 }
93 theInstance = reinterpret_cast<G4AntiSigmaZero*>(anInstance);
94 return theInstance;
95}
96
98{
99 return Definition();
100}
101
103{
104 return Definition();
105}
106
static constexpr double GeV
Definition: G4SIunits.hh:203
static constexpr double MeV
Definition: G4SIunits.hh:200
static G4AntiSigmaZero * AntiSigmaZero()
static G4AntiSigmaZero * AntiSigmaZeroDefinition()
static G4AntiSigmaZero * theInstance
static G4AntiSigmaZero * Definition()
void Insert(G4VDecayChannel *aChannel)
Definition: G4DecayTable.cc:53
G4double GetPDGWidth() const
void SetPDGLifeTime(G4double aLifeTime)
void SetDecayTable(G4DecayTable *aDecayTable)
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
static G4ParticleTable * GetParticleTable()
const char * name(G4int ptype)
float hbar_Planck
Definition: hepunit.py:263
#define ns
Definition: xmlparse.cc:614