G4AdjointElectron.cc

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00025 //
00026 //
00027 // $Id$
00028 //
00029 //
00030 // ------------------------------------------------------------
00031 //      GEANT 4 class header file
00032 //
00033 //      History: 
00034 //    1st March 2007 creation by L. Desorgher based on a modification of G4Electron        
00035 //    06  Nov.  2008 modified for Geant4-09-02  by Hisaya Kurashige 
00036 //
00037 //-------------------------------------------------------------
00038 // 
00039 
00040 #include "G4AdjointElectron.hh"
00041 #include "G4PhysicalConstants.hh"
00042 #include "G4SystemOfUnits.hh"
00043 #include "G4ParticleTable.hh"
00044 
00045 // ######################################################################
00046 // ###                         ADJOINT ELECTRON                       ###
00047 // ######################################################################
00048 G4AdjointElectron* G4AdjointElectron::theInstance = 0;
00049 
00050 G4AdjointElectron* G4AdjointElectron::Definition()
00051 { 
00052   
00053   if (theInstance !=0) return theInstance;
00054   const G4String name = "adj_e-";
00055   // search in particle table]
00056   G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
00057   G4ParticleDefinition* anInstance = pTable->FindParticle(name);
00058   if (anInstance ==0)
00059   {
00060   
00061   // create particle
00062   //
00063   //    Arguments for constructor are as follows
00064   //               name             mass          width         charge
00065   //             2*spin           parity  C-conjugation
00066   //          2*Isospin       2*Isospin3       G-parity
00067   //               type    lepton number  baryon number   PDG encoding
00068   //             stable         lifetime    decay table
00069   //             shortlived      subType    anti_encoding
00070 
00071   // use constants in CLHEP
00072   //  static const double electron_mass_c2 = 0.51099906 * MeV;
00073 
00074   // NOTE  : electric charge and magnetic moment is opposite 
00075   //         compared with real electron, because adjoint particles
00076   //         are used to back-trace
00077 
00078    anInstance = new G4ParticleDefinition(
00079                  name,  electron_mass_c2,       0.0*MeV,     1.*eplus, 
00080                     1,                 0,             0,          
00081                     0,                 0,             0,             
00082              "adjoint",                1,             0,     10000011,
00083                   true,             -1.0,          NULL,
00084                  false,           "adj_lepton"
00085               );
00086    // Bohr Magnetron
00087    G4double muB =  0.5*eplus*hbar_Planck/(electron_mass_c2/c_squared) ;
00088    anInstance->SetPDGMagneticMoment( muB * 2.* 1.0011596521859 );
00089 
00090   }
00091   theInstance = reinterpret_cast<G4AdjointElectron*>(anInstance);
00092   return theInstance;
00093 }
00094 
00095 G4AdjointElectron*  G4AdjointElectron::AdjointElectronDefinition()
00096 {
00097   return Definition();
00098 }
00099 
00100 G4AdjointElectron*  G4AdjointElectron::AdjointElectron()
00101 {
00102   return Definition();
00103 }
00104 
00105 

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