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G4PionMinus.cc
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27 // $Id: G4PionMinus.cc 67971 2013-03-13 10:13:24Z gcosmo $
28 //
29 //
30 // ----------------------------------------------------------------------
31 // GEANT 4 class implementation file
32 //
33 // History: first implementation, based on object model of
34 // 4th April 1996, G.Cosmo
35 // **********************************************************************
36 // New impelemenataion as an utility class M.Asai, 26 July 2004
37 // ----------------------------------------------------------------------
38 
39 #include "G4PionMinus.hh"
40 #include "G4SystemOfUnits.hh"
41 #include "G4ParticleTable.hh"
42 
44 #include "G4DecayTable.hh"
45 
46 // ######################################################################
47 // ### PIONMINUS ###
48 // ######################################################################
49 
51 
53 {
54  if (theInstance !=0) return theInstance;
55  const G4String name = "pi-";
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, 0.1395701*GeV, 2.5284e-14*MeV, -1.*eplus,
73  0, -1, 0,
74  2, -2, -1,
75  "meson", 0, 0, -211,
76  false, 26.033*ns, NULL,
77  false, "pi");
78 
79  //create Decay Table
80  G4DecayTable* table = new G4DecayTable();
81 
82  // create a decay channel
83  // pi- -> mu- + anti_nu_mu
84  G4VDecayChannel* mode = new G4PhaseSpaceDecayChannel("pi-",1.00,2,"mu-","anti_nu_mu");
85  table->Insert(mode);
86 
87  anInstance->SetDecayTable(table);
88  }
89  theInstance = reinterpret_cast<G4PionMinus*>(anInstance);
90  return theInstance;
91 }
92 
94 {
95  return Definition();
96 }
97 
99 {
100  return Definition();
101 }
102 
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
static G4PionMinus * PionMinus()
Definition: G4PionMinus.cc:98
const XML_Char * name
Definition: expat.h:151
static G4ParticleTable * GetParticleTable()
static constexpr double MeV
Definition: G4SIunits.hh:214
void SetDecayTable(G4DecayTable *aDecayTable)
void Insert(G4VDecayChannel *aChannel)
Definition: G4DecayTable.cc:62
static G4PionMinus * Definition()
Definition: G4PionMinus.cc:52
static G4PionMinus * theInstance
Definition: G4PionMinus.hh:53
static G4PionMinus * PionMinusDefinition()
Definition: G4PionMinus.cc:93
static constexpr double eplus
Definition: G4SIunits.hh:199
static constexpr double GeV
Definition: G4SIunits.hh:217
#define ns
Definition: xmlparse.cc:614