Geant4  10.00.p01
G4EtaPrime.cc
Go to the documentation of this file.
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
25 //
26 //
27 // $Id: G4EtaPrime.cc 67971 2013-03-13 10:13:24Z gcosmo $
28 //
29 //
30 // ----------------------------------------------------------------
31 // GEANT 4 class implementation file
32 //
33 // History: first implementation, 8 June 1998 Hisaya Kurashige
34 // **********************************************************************
35 // New impelemenataion as an utility class M.Asai, 26 July 2004
36 // ----------------------------------------------------------------------
37 // Update mass (PDG2006) Oct. 11 2006 H.Kurashige
38 //
39 
40 #include "G4EtaPrime.hh"
41 #include "G4SystemOfUnits.hh"
42 #include "G4ParticleTable.hh"
43 
45 #include "G4DecayTable.hh"
46 
47 // ######################################################################
48 // ### EtaPrime ###
49 // ######################################################################
50 
52 
54 {
55  if (theInstance !=0) return theInstance;
56  const G4String name = "eta_prime";
57  // search in particle table]
59  G4ParticleDefinition* anInstance = pTable->FindParticle(name);
60  if (anInstance ==0)
61  {
62  // create particle
63  //
64  // Arguments for constructor are as follows
65  // name mass width charge
66  // 2*spin parity C-conjugation
67  // 2*Isospin 2*Isospin3 G-parity
68  // type lepton number baryon number PDG encoding
69  // stable lifetime decay table
70  // shortlived subType anti_encoding
71 
72  anInstance = new G4ParticleDefinition(
73  name, 0.95778*GeV, 0.199*MeV, 0.0,
74  0, -1, +1,
75  0, 0, +1,
76  "meson", 0, 0, 331,
77  false, 0.0*ns, NULL,
78  false, "eta_prime", 331);
79  //create Decay Table
80  G4DecayTable* table = new G4DecayTable();
81 
82  // create decay channels
83  G4VDecayChannel** mode = new G4VDecayChannel*[3];
84  // EtaPrime -> eta + pi+ + pi-
85  mode[0] = new G4PhaseSpaceDecayChannel("eta_prime",0.437,3,"eta","pi+","pi-");
86  // EtaPrime -> eta + pi0 + pi0
87  mode[1] = new G4PhaseSpaceDecayChannel("eta_prime",0.208,3,"eta","pi0","pi0");
88  // EtaPrime -> rho0 + gamma
89  mode[2] = new G4PhaseSpaceDecayChannel("eta_prime",0.302,2,"rho0","gamma");
90 
91  for (G4int index=0; index <3; index++ ) table->Insert(mode[index]);
92  delete [] mode;
93 
94  anInstance->SetDecayTable(table);
95  }
96  theInstance = reinterpret_cast<G4EtaPrime*>(anInstance);
97  return theInstance;
98 }
99 
101 {
102  return Definition();
103 }
104 
106 {
107  return Definition();
108 }
109 
void SetDecayTable(G4DecayTable *aDecayTable)
static const double MeV
Definition: G4SIunits.hh:193
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
G4String name
Definition: TRTMaterials.hh:40
static G4EtaPrime * Definition()
Definition: G4EtaPrime.cc:53
int G4int
Definition: G4Types.hh:78
static G4EtaPrime * theInstance
Definition: G4EtaPrime.hh:52
static G4EtaPrime * EtaPrime()
Definition: G4EtaPrime.cc:105
static const double GeV
Definition: G4SIunits.hh:196
void Insert(G4VDecayChannel *aChannel)
Definition: G4DecayTable.cc:60
static G4EtaPrime * EtaPrimeDefinition()
Definition: G4EtaPrime.cc:100
static G4ParticleTable * GetParticleTable()
#define ns
Definition: xmlparse.cc:597