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Please see the license in the file << 14 // * use. * 16 // * for the full disclaimer and the limitatio << 17 // * 15 // * * 18 // * This code implementation is the result << 16 // * This code implementation is the intellectual property of the * 19 // * technical work of the GEANT4 collaboratio << 17 // * GEANT4 collaboration. * 20 // * By using, copying, modifying or distri << 18 // * By copying, distributing or modifying the Program (or any work * 21 // * any work based on the software) you ag << 19 // * based on the Program) you indicate your acceptance of this * 22 // * use in resulting scientific publicati << 20 // * statement, and all its terms. * 23 // * acceptance of all terms of the Geant4 Sof << 24 // ******************************************* 21 // ******************************************************************** 25 // 22 // >> 23 // >> 24 // $Id: G4TauMinus.cc,v 1.9 2003/06/16 16:58:00 gunter Exp $ >> 25 // GEANT4 tag $Name: geant4-05-02-patch-01 $ >> 26 // >> 27 // 26 // ------------------------------------------- 28 // ---------------------------------------------------------------------- 27 // GEANT 4 class implementation file 29 // GEANT 4 class implementation file 28 // 30 // 29 // History: first implementation, based o 31 // History: first implementation, based on object model of 30 // 4th April 1996, G.Cosmo 32 // 4th April 1996, G.Cosmo 31 // 7 July 1996 H.Kurash << 33 // 7 July 1996 H.Kurashige 32 // ******************************************* 34 // ********************************************************************** 33 // New impelemenataion as an utility class M << 35 34 // ------------------------------------------- << 36 #include <fstream> >> 37 #include <iomanip> 35 38 36 #include "G4TauMinus.hh" 39 #include "G4TauMinus.hh" 37 40 38 #include "G4DecayTable.hh" << 39 #include "G4ParticleTable.hh" << 40 #include "G4PhaseSpaceDecayChannel.hh" 41 #include "G4PhaseSpaceDecayChannel.hh" 41 #include "G4PhysicalConstants.hh" << 42 #include "G4String.hh" << 43 #include "G4SystemOfUnits.hh" << 44 #include "G4TauLeptonicDecayChannel.hh" 42 #include "G4TauLeptonicDecayChannel.hh" 45 #include "G4Types.hh" << 43 #include "G4DecayTable.hh" 46 #include "G4VDecayChannel.hh" << 47 << 48 G4TauMinus* G4TauMinus::theInstance = nullptr; << 49 44 50 G4TauMinus* G4TauMinus::Definition() << 45 // ###################################################################### >> 46 // ### TAUMINUS ### >> 47 // ###################################################################### >> 48 >> 49 G4TauMinus::G4TauMinus( >> 50 const G4String& aName, G4double mass, >> 51 G4double width, G4double charge, >> 52 G4int iSpin, G4int iParity, >> 53 G4int iConjugation, G4int iIsospin, >> 54 G4int iIsospin3, G4int gParity, >> 55 const G4String& pType, G4int lepton, >> 56 G4int baryon, G4int encoding, >> 57 G4bool stable, G4double lifetime, >> 58 G4DecayTable *decaytable ) >> 59 : G4VLepton( aName,mass,width,charge,iSpin,iParity, >> 60 iConjugation,iIsospin,iIsospin3,gParity,pType, >> 61 lepton,baryon,encoding,stable,lifetime,decaytable ) 51 { 62 { 52 if (theInstance != nullptr) return theInstan << 63 SetParticleSubType("tau"); 53 const G4String name = "tau-"; << 64 SetPDGStable(false); 54 // search in particle table] << 65 55 G4ParticleTable* pTable = G4ParticleTable::G << 66 //create Decay Table 56 G4ParticleDefinition* anInstance = pTable->F << 67 G4DecayTable* table = GetDecayTable(); 57 if (anInstance == nullptr) { << 68 if (table!=NULL) delete table; 58 // create particle << 69 table = new G4DecayTable(); 59 // << 70 60 // Arguments for constructor are as fol << 71 // create decay channels 61 // name mass << 72 G4VDecayChannel** mode = new G4VDecayChannel*[6]; 62 // 2*spin parity C- << 73 // tau- -> mu- + anti_nu_mu + nu_tau 63 // 2*Isospin 2*Isospin3 << 74 mode[0] = new G4TauLeptonicDecayChannel("tau-",0.174,"mu-"); 64 // type lepton number ba << 75 // tau- -> e- + anti_nu_e + nu_tau 65 // stable lifetime << 76 mode[1] = new G4TauLeptonicDecayChannel("tau-",0.178,"e-"); 66 // shortlived subType << 77 // tau- -> pi- + nu_tau 67 << 78 mode[2] = new G4PhaseSpaceDecayChannel("tau-",0.113,2,"pi-","nu_tau"); 68 // clang-format off << 79 // tau- -> pi0 + pi0 + pi- + nu_tau 69 anInstance = new G4ParticleDefinition( << 80 mode[3] = new G4PhaseSpaceDecayChannel("tau-",0.252,3,"pi0","pi-","nu_tau"); 70 name, 1.77686*GeV, 2.267 << 81 // tau- -> pi0 + pi0 + pi- + nu_tau >> 82 mode[4] = new G4PhaseSpaceDecayChannel(); >> 83 mode[4]->SetParent("tau-"); >> 84 mode[4]->SetBR(0.093); >> 85 mode[4]->SetNumberOfDaughters(4); >> 86 mode[4]->SetDaughter(0,"pi0"); >> 87 mode[4]->SetDaughter(1,"pi0"); >> 88 mode[4]->SetDaughter(2,"pi-"); >> 89 mode[4]->SetDaughter(3,"nu_tau"); >> 90 // tau- -> pi- + pi- + pi+ + nu_tau >> 91 mode[5] = new G4PhaseSpaceDecayChannel(); >> 92 mode[5]->SetParent("tau-"); >> 93 mode[5]->SetBR(0.098); >> 94 mode[5]->SetNumberOfDaughters(4); >> 95 mode[5]->SetDaughter(0,"pi-"); >> 96 mode[5]->SetDaughter(1,"pi-"); >> 97 mode[5]->SetDaughter(2,"pi+"); >> 98 mode[5]->SetDaughter(3,"nu_tau"); >> 99 >> 100 for (G4int index=0; index <6; index++ ) table->Insert(mode[index]); >> 101 delete [] mode; >> 102 >> 103 SetDecayTable(table); >> 104 } >> 105 >> 106 // ...................................................................... >> 107 // ... static member definitions ... >> 108 // ...................................................................... >> 109 // >> 110 // Arguments for constructor are as follows >> 111 // name mass width charge >> 112 // 2*spin parity C-conjugation >> 113 // 2*Isospin 2*Isospin3 G-parity >> 114 // type lepton number baryon number PDG encoding >> 115 // stable lifetime decay table >> 116 >> 117 G4TauMinus G4TauMinus::theTauMinus( >> 118 "tau-", 1.77705*GeV, 2.27e-9*MeV, -1.*eplus, 71 1, 0, 0, 119 1, 0, 0, 72 0, 0, 0, 120 0, 0, 0, 73 "lepton", 1, 121 "lepton", 1, 0, 15, 74 false, 290.3e-6*ns, nullptr, << 122 true, 295.6e-6*ns, NULL 75 false, "tau" << 123 ); 76 ); << 77 // clang-format on << 78 << 79 // Bohr Magnetron << 80 G4double muB = -0.5 * eplus * hbar_Planck << 81 << 82 anInstance->SetPDGMagneticMoment(muB * 1.0 << 83 << 84 // create Decay Table << 85 auto table = new G4DecayTable(); << 86 << 87 // create decay channels << 88 G4VDecayChannel* mode; << 89 // tau- -> mu- + anti_nu_mu + nu_tau << 90 mode = new G4TauLeptonicDecayChannel("tau- << 91 table->Insert(mode); << 92 // tau- -> e- + anti_nu_e + nu_tau << 93 mode = new G4TauLeptonicDecayChannel("tau- << 94 table->Insert(mode); << 95 // tau- -> pi- + nu_tau << 96 mode = new G4PhaseSpaceDecayChannel("tau-" << 97 table->Insert(mode); << 98 // tau- -> pi0 + pi- + nu_tau << 99 mode = new G4PhaseSpaceDecayChannel("tau-" << 100 table->Insert(mode); << 101 // tau- -> pi0 + pi0 + pi- + 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, "nu_tau"); << 110 table->Insert(mode); << 111 // tau- -> pi- + pi- + pi+ + 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, "nu_tau"); << 120 table->Insert(mode); << 121 << 122 anInstance->SetDecayTable(table); << 123 } << 124 theInstance = static_cast<G4TauMinus*>(anIns << 125 return theInstance; << 126 } << 127 124 128 G4TauMinus* G4TauMinus::TauMinusDefinition() << 125 G4TauMinus* G4TauMinus::TauMinusDefinition() {return &theTauMinus;} 129 { << 130 return Definition(); << 131 } << 132 126 133 G4TauMinus* G4TauMinus::TauMinus() << 127 G4TauMinus* G4TauMinus::TauMinus() 134 { << 128 { 135 return Definition(); << 129 return &theTauMinus; 136 } 130 } >> 131 >> 132 137 133