Geant4 Cross Reference |
1 // 1 // 2 // ******************************************* 2 // ******************************************************************** 3 // * License and Disclaimer 3 // * License and Disclaimer * 4 // * 4 // * * 5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of * 6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and * 7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file * 8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These * 9 // * include a list of copyright holders. 9 // * include a list of copyright holders. * 10 // * 10 // * * 11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing * 12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this * 13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, * 14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its * 15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // >> 26 // >> 27 // >> 28 // 26 // ------------------------------------------- 29 // ---------------------------------------------------------------------- 27 // GEANT 4 class implementation file 30 // GEANT 4 class implementation file 28 // 31 // 29 // History: first implementation, based o 32 // History: first implementation, based on object model of 30 // 4th April 1996, G.Cosmo 33 // 4th April 1996, G.Cosmo 31 // 7 July 1996 H.Kurash << 34 // 7 July 1996 H.Kurashige 32 // ******************************************* 35 // ********************************************************************** 33 // New impelemenataion as an utility class M 36 // New impelemenataion as an utility class M.Asai, 26 July 2004 34 // ------------------------------------------- 37 // ---------------------------------------------------------------------- 35 38 36 #include "G4TauPlus.hh" 39 #include "G4TauPlus.hh" 37 << 38 #include "G4DecayTable.hh" << 39 #include "G4ParticleTable.hh" << 40 #include "G4PhaseSpaceDecayChannel.hh" << 41 #include "G4PhysicalConstants.hh" 40 #include "G4PhysicalConstants.hh" 42 #include "G4String.hh" << 43 #include "G4SystemOfUnits.hh" 41 #include "G4SystemOfUnits.hh" >> 42 #include "G4ParticleTable.hh" >> 43 >> 44 #include "G4PhaseSpaceDecayChannel.hh" 44 #include "G4TauLeptonicDecayChannel.hh" 45 #include "G4TauLeptonicDecayChannel.hh" 45 #include "G4Types.hh" << 46 #include "G4DecayTable.hh" 46 #include "G4VDecayChannel.hh" << 47 47 48 G4TauPlus* G4TauPlus::theInstance = nullptr; << 48 // ###################################################################### >> 49 // ### TAPLUS ### >> 50 // ###################################################################### >> 51 G4TauPlus* G4TauPlus::theInstance = 0; 49 52 50 G4TauPlus* G4TauPlus::Definition() 53 G4TauPlus* G4TauPlus::Definition() 51 { 54 { 52 if (theInstance != nullptr) return theInstan << 55 if (theInstance !=0) return theInstance; 53 const G4String name = "tau+"; 56 const G4String name = "tau+"; 54 // search in particle table] 57 // search in particle table] 55 G4ParticleTable* pTable = G4ParticleTable::G 58 G4ParticleTable* pTable = G4ParticleTable::GetParticleTable(); 56 G4ParticleDefinition* anInstance = pTable->F 59 G4ParticleDefinition* anInstance = pTable->FindParticle(name); 57 if (anInstance == nullptr) { << 60 if (anInstance ==0) 58 // create particle << 61 { 59 // << 62 // create particle 60 // Arguments for constructor are as fol << 63 // 61 // name mass << 64 // Arguments for constructor are as follows 62 // 2*spin parity C- << 65 // name mass width charge 63 // 2*Isospin 2*Isospin3 << 66 // 2*spin parity C-conjugation 64 // type lepton number ba << 67 // 2*Isospin 2*Isospin3 G-parity 65 // stable lifetime << 68 // type lepton number baryon number PDG encoding 66 // shortlived subType << 69 // stable lifetime decay table 67 << 70 // shortlived subType anti_encoding 68 // clang-format off << 69 anInstance = new G4ParticleDefinition( 71 anInstance = new G4ParticleDefinition( 70 name, 1.77686*GeV, 2.267 72 name, 1.77686*GeV, 2.267e-9*MeV, 1.*eplus, 71 1, 0, 0, 73 1, 0, 0, 72 0, 0, 0, 74 0, 0, 0, 73 "lepton", -1, 75 "lepton", -1, 0, -15, 74 false, 290.3e-6*ns, nullptr, << 76 false, 290.3e-6*ns, NULL, 75 false, "tau" 77 false, "tau" 76 ); 78 ); 77 // clang-format on << 79 // Bohr Magnetron 78 << 80 G4double muB = 0.5*eplus*hbar_Planck/(anInstance->GetPDGMass()/c_squared) ; 79 // Bohr Magnetron << 81 80 G4double muB = 0.5 * eplus * hbar_Planck / << 82 anInstance->SetPDGMagneticMoment( muB * 1.00118); >> 83 >> 84 //create Decay Table >> 85 G4DecayTable* table = new G4DecayTable(); >> 86 >> 87 // create decay channels >> 88 G4VDecayChannel* mode; >> 89 // tau+ -> mu+ + nu_mu + anti_nu_tau >> 90 mode = new G4TauLeptonicDecayChannel("tau+",0.1736,"mu+"); >> 91 table->Insert(mode); >> 92 // tau+ -> e+ + nu_e + anti_nu_tau >> 93 mode = new G4TauLeptonicDecayChannel("tau+",0.1784,"e+"); >> 94 table->Insert(mode); >> 95 // tau+ -> pi+ + anti_nu_tau >> 96 mode = new G4PhaseSpaceDecayChannel("tau+",0.1106,2,"pi+","anti_nu_tau"); >> 97 table->Insert(mode); >> 98 // tau+ -> pi0 + pi0 + pi+ + anti_nu_tau >> 99 mode = new G4PhaseSpaceDecayChannel("tau+",0.2541,3,"pi0","pi+","anti_nu_tau"); >> 100 table->Insert(mode); >> 101 // tau+ -> pi0 + pi0 + pi+ + anti_nu_tau >> 102 mode = new G4PhaseSpaceDecayChannel(); >> 103 mode->SetParent("tau+"); >> 104 mode->SetBR(0.0917); >> 105 mode->SetNumberOfDaughters(4); >> 106 mode->SetDaughter(0,"pi0"); >> 107 mode->SetDaughter(1,"pi0"); >> 108 mode->SetDaughter(2,"pi+"); >> 109 mode->SetDaughter(3,"anti_nu_tau"); >> 110 table->Insert(mode); >> 111 // tau+ -> pi+ + pi+ + pi- + anti_nu_tau >> 112 mode = new G4PhaseSpaceDecayChannel(); >> 113 mode->SetParent("tau+"); >> 114 mode->SetBR(0.0946); >> 115 mode->SetNumberOfDaughters(4); >> 116 mode->SetDaughter(0,"pi+"); >> 117 mode->SetDaughter(1,"pi+"); >> 118 mode->SetDaughter(2,"pi-"); >> 119 mode->SetDaughter(3,"anti_nu_tau"); >> 120 table->Insert(mode); 81 121 82 anInstance->SetPDGMagneticMoment(muB * 1.0 << 122 anInstance->SetDecayTable(table); 83 << 84 // create Decay Table << 85 auto table = new G4DecayTable(); << 86 << 87 // create decay channels << 88 G4VDecayChannel* mode; << 89 // tau+ -> mu+ + nu_mu + anti_nu_tau << 90 mode = new G4TauLeptonicDecayChannel("tau+ << 91 table->Insert(mode); << 92 // tau+ -> e+ + nu_e + anti_nu_tau << 93 mode = new G4TauLeptonicDecayChannel("tau+ << 94 table->Insert(mode); << 95 // tau+ -> pi+ + anti_nu_tau << 96 mode = new G4PhaseSpaceDecayChannel("tau+" << 97 table->Insert(mode); << 98 // tau+ -> pi0 + pi0 + pi+ + anti_nu_tau << 99 mode = new G4PhaseSpaceDecayChannel("tau+" << 100 table->Insert(mode); << 101 // tau+ -> pi0 + pi0 + pi+ + anti_nu_tau << 102 mode = new G4PhaseSpaceDecayChannel(); << 103 mode->SetParent("tau+"); << 104 mode->SetBR(0.0917); << 105 mode->SetNumberOfDaughters(4); << 106 mode->SetDaughter(0, "pi0"); << 107 mode->SetDaughter(1, "pi0"); << 108 mode->SetDaughter(2, "pi+"); << 109 mode->SetDaughter(3, "anti_nu_tau"); << 110 table->Insert(mode); << 111 // tau+ -> pi+ + pi+ + pi- + anti_nu_tau << 112 mode = new G4PhaseSpaceDecayChannel(); << 113 mode->SetParent("tau+"); << 114 mode->SetBR(0.0946); << 115 mode->SetNumberOfDaughters(4); << 116 mode->SetDaughter(0, "pi+"); << 117 mode->SetDaughter(1, "pi+"); << 118 mode->SetDaughter(2, "pi-"); << 119 mode->SetDaughter(3, "anti_nu_tau"); << 120 table->Insert(mode); << 121 << 122 anInstance->SetDecayTable(table); << 123 } 123 } 124 theInstance = static_cast<G4TauPlus*>(anInst 124 theInstance = static_cast<G4TauPlus*>(anInstance); 125 return theInstance; 125 return theInstance; 126 } 126 } 127 127 128 G4TauPlus* G4TauPlus::TauPlusDefinition() << 128 G4TauPlus* G4TauPlus::TauPlusDefinition() 129 { 129 { 130 return Definition(); 130 return Definition(); 131 } 131 } 132 132 133 G4TauPlus* G4TauPlus::TauPlus() << 133 G4TauPlus* G4TauPlus::TauPlus() 134 { 134 { 135 return Definition(); 135 return Definition(); 136 } 136 } >> 137 137 138