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: G4AntiSigmaPlus.cc,v 1.15 2008/09/18 08:37:27 kurasige Exp $ |
---|
28 | // GEANT4 tag $Name: geant4-09-02-cand-01 $ |
---|
29 | // |
---|
30 | // |
---|
31 | // ---------------------------------------------------------------------- |
---|
32 | // GEANT 4 class implementation file |
---|
33 | // |
---|
34 | // History: first implementation, based on object model of |
---|
35 | // 4th April 1996, G.Cosmo |
---|
36 | // ********************************************************************** |
---|
37 | // New impelemenataion as an utility class M.Asai, 26 July 2004 |
---|
38 | // ---------------------------------------------------------------------- |
---|
39 | |
---|
40 | #include "G4AntiSigmaPlus.hh" |
---|
41 | #include "G4ParticleTable.hh" |
---|
42 | |
---|
43 | #include "G4PhaseSpaceDecayChannel.hh" |
---|
44 | #include "G4DecayTable.hh" |
---|
45 | |
---|
46 | // ###################################################################### |
---|
47 | // ### AntiSigmaPlus #### |
---|
48 | // ###################################################################### |
---|
49 | |
---|
50 | G4AntiSigmaPlus* G4AntiSigmaPlus::theInstance = 0; |
---|
51 | |
---|
52 | G4AntiSigmaPlus* G4AntiSigmaPlus::Definition() |
---|
53 | { |
---|
54 | if (theInstance !=0) return theInstance; |
---|
55 | const G4String name = "anti_sigma+"; |
---|
56 | // search in particle table] |
---|
57 | G4ParticleTable* pTable = G4ParticleTable::GetParticleTable(); |
---|
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, 1.18937*GeV, 8.264e-12*MeV, -1.*eplus, |
---|
73 | 1, +1, 0, |
---|
74 | 2, -2, 0, |
---|
75 | "baryon", 0, -1, -3222, |
---|
76 | false, 0.08018*ns, NULL, |
---|
77 | false, "sigma"); |
---|
78 | |
---|
79 | // Magnetic Moment |
---|
80 | G4double mN = eplus*hbar_Planck/2./(proton_mass_c2 /c_squared); |
---|
81 | anInstance->SetPDGMagneticMoment( -2.458 * mN); |
---|
82 | |
---|
83 | //create Decay Table |
---|
84 | G4DecayTable* table = new G4DecayTable(); |
---|
85 | |
---|
86 | // create decay channels |
---|
87 | G4VDecayChannel** mode = new G4VDecayChannel*[2]; |
---|
88 | // anti_sigma+ -> anti_proton + pi0 |
---|
89 | mode[0] = new G4PhaseSpaceDecayChannel("anti_sigma+",0.516,2,"anti_proton","pi0"); |
---|
90 | // anti_sigma+ -> anti_neutron + pi+ |
---|
91 | mode[1] = new G4PhaseSpaceDecayChannel("anti_sigma+",0.483,2,"anti_neutron","pi-"); |
---|
92 | |
---|
93 | for (G4int index=0; index <2; index++ ) table->Insert(mode[index]); |
---|
94 | delete [] mode; |
---|
95 | |
---|
96 | anInstance->SetDecayTable(table); |
---|
97 | } |
---|
98 | theInstance = reinterpret_cast<G4AntiSigmaPlus*>(anInstance); |
---|
99 | return theInstance; |
---|
100 | } |
---|
101 | |
---|
102 | G4AntiSigmaPlus* G4AntiSigmaPlus::AntiSigmaPlusDefinition() |
---|
103 | { |
---|
104 | return Definition(); |
---|
105 | } |
---|
106 | |
---|
107 | G4AntiSigmaPlus* G4AntiSigmaPlus::AntiSigmaPlus() |
---|
108 | { |
---|
109 | return Definition(); |
---|
110 | } |
---|
111 | |
---|