1 | // |
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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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4 | // * * |
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5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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7 | // * conditions of the Geant4 Software License, included in the file * |
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8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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9 | // * include a list of copyright holders. * |
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10 | // * * |
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11 | // * Neither the authors of this software system, nor their employing * |
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12 | // * institutes,nor the agencies providing financial support for this * |
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13 | // * work make any representation or warranty, express or implied, * |
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14 | // * regarding this software system or assume any liability for its * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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16 | // * for the full disclaimer and the limitation of liability. * |
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17 | // * * |
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18 | // * This code implementation is the result of the scientific and * |
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19 | // * technical work of the GEANT4 collaboration. * |
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20 | // * By using, copying, modifying or distributing the software (or * |
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21 | // * any work based on the software) you agree to acknowledge its * |
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22 | // * use in resulting scientific publications, and indicate your * |
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23 | // * acceptance of all terms of the Geant4 Software license. * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // $Id: G4AdjointPositron.cc,v 1.3 2008/11/13 08:23:12 kurasige Exp $ |
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28 | // GEANT4 tag $Name: geant4-09-03-cand-01 $ |
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29 | // |
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30 | // |
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31 | // ------------------------------------------------------------ |
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32 | // GEANT 4 class header file |
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33 | // |
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34 | // History: |
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35 | // 1st March 2007 creation by L. Desorgher based on a modification of G4Positron |
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36 | // 06 Nov. 2008 modified for Geant4-09-02 by Hisaya Kurashige |
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37 | // |
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38 | //------------------------------------------------------------- |
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39 | // |
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40 | |
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41 | #include "G4AdjointPositron.hh" |
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42 | #include "G4ParticleTable.hh" |
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43 | |
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44 | // ###################################################################### |
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45 | // ### ADJOINT ELECTRON ### |
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46 | // ###################################################################### |
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47 | G4AdjointPositron* G4AdjointPositron::theInstance = 0; |
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48 | |
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49 | G4AdjointPositron* G4AdjointPositron::Definition() |
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50 | { |
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51 | |
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52 | if (theInstance !=0) return theInstance; |
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53 | const G4String name = "adj_e+"; |
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54 | // search in particle table] |
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55 | G4ParticleTable* pTable = G4ParticleTable::GetParticleTable(); |
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56 | G4ParticleDefinition* anInstance = pTable->FindParticle(name); |
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57 | if (anInstance ==0) |
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58 | { |
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59 | |
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60 | // create particle |
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61 | // |
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62 | // Arguments for constructor are as follows |
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63 | // name mass width charge |
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64 | // 2*spin parity C-conjugation |
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65 | // 2*Isospin 2*Isospin3 G-parity |
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66 | // type lepton number baryon number PDG encoding |
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67 | // stable lifetime decay table |
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68 | // shortlived subType anti_encoding |
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69 | |
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70 | // use constants in CLHEP |
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71 | // static const double electron_mass_c2 = 0.51099906 * MeV; |
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72 | |
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73 | // NOTE : electric charge and magnetic moment is opposite |
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74 | // compared with real positron, because adjoint particles |
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75 | // are used to back-trace |
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76 | anInstance = new G4ParticleDefinition( |
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77 | name, electron_mass_c2, 0.0*MeV, -1.*eplus, |
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78 | 1, 0, 0, |
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79 | 0, 0, 0, |
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80 | "adjoint", -1, 0, -10000011, |
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81 | true, -1.0, NULL, |
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82 | false, "adj_lepton" |
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83 | ); |
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84 | // Bohr Magnetron |
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85 | G4double muB = -0.5*eplus*hbar_Planck/(electron_mass_c2/c_squared) ; |
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86 | anInstance->SetPDGMagneticMoment( muB * 2.* 1.0011596521859 ); |
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87 | |
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88 | } |
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89 | theInstance = reinterpret_cast<G4AdjointPositron*>(anInstance); |
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90 | return theInstance; |
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91 | } |
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92 | |
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93 | G4AdjointPositron* G4AdjointPositron::AdjointPositronDefinition() |
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94 | { |
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95 | return Definition(); |
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96 | } |
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97 | |
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98 | G4AdjointPositron* G4AdjointPositron::AdjointPositron() |
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99 | { |
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100 | return Definition(); |
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101 | } |
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102 | |
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103 | |
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