G4KaonZero.cc

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00001 //
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00025 //
00026 //
00027 // $Id$
00028 //
00029 // 
00030 // ----------------------------------------------------------------------
00031 //      GEANT 4 class implementation file
00032 //
00033 //      History: first implementation, based on object model of
00034 //      4th April 1996, G.Cosmo
00035 //                              H.Kurashige   7 Jul 96
00036 // **********************************************************************
00037 //  New impelemenataion as an utility class  M.Asai, 26 July 2004
00038 // ----------------------------------------------------------------------
00039 
00040 #include "G4KaonZero.hh"
00041 #include "G4SystemOfUnits.hh"
00042 #include "G4ParticleTable.hh"
00043 
00044 #include "G4PhaseSpaceDecayChannel.hh"
00045 #include "G4DecayTable.hh"
00046 
00047 // ######################################################################
00048 // ###                          KAONZERO                              ###
00049 // ######################################################################
00050 
00051 G4KaonZero* G4KaonZero::theInstance = 0;
00052 
00053 G4KaonZero* G4KaonZero::Definition()
00054 {
00055   if (theInstance !=0) return theInstance;
00056   const G4String name = "kaon0";
00057   // search in particle table]
00058   G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
00059   G4ParticleDefinition* anInstance = pTable->FindParticle(name);
00060   if (anInstance ==0)
00061   {
00062   // create particle
00063   //
00064   //    Arguments for constructor are as follows
00065   //               name             mass          width         charge
00066   //             2*spin           parity  C-conjugation
00067   //          2*Isospin       2*Isospin3       G-parity
00068   //               type    lepton number  baryon number   PDG encoding
00069   //             stable         lifetime    decay table
00070   //             shortlived      subType    anti_encoding
00071 
00072    anInstance = new G4ParticleDefinition(
00073                  name,    0.497614*GeV,       0.0*MeV,         0.0,
00074                     0,              -1,             0,
00075                     1,              -1,             0,
00076               "meson",               0,             0,         311,
00077                 false,             0.0,          NULL,
00078                 false,       "kaon");
00079 
00080  //create Decay Table
00081   G4DecayTable* table = new G4DecayTable();
00082 
00083  // create decay channels
00084   G4VDecayChannel** mode = new G4VDecayChannel*[2];
00085   // kaon0 -> Kaon0L
00086   mode[0] = new G4PhaseSpaceDecayChannel("kaon0",0.500,1,"kaon0L");
00087   // kaon0 -> Kaon0S
00088   mode[1] = new G4PhaseSpaceDecayChannel("kaon0",0.500,1,"kaon0S");
00089 
00090   for (G4int index=0; index <2; index++ ) table->Insert(mode[index]);
00091   delete [] mode;
00092 
00093    anInstance->SetDecayTable(table);
00094   }
00095   theInstance = reinterpret_cast<G4KaonZero*>(anInstance);
00096   return theInstance;
00097 }
00098 
00099 G4KaonZero*  G4KaonZero::KaonZeroDefinition()
00100 {
00101   return Definition();
00102 }
00103 
00104 G4KaonZero*  G4KaonZero::KaonZero()
00105 {
00106   return Definition();
00107 }
00108 

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