G4MesonSplitter.cc

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00026 #include "G4MesonSplitter.hh"
00027 #include "Randomize.hh"
00028 
00029 G4bool G4MesonSplitter::SplitMeson(G4int PDGcode, G4int* aEnd, G4int* bEnd)
00030 {
00031         G4bool result = true;
00032         G4int absPDGcode = std::abs(PDGcode);
00033         if (absPDGcode >= 1000) return false;
00034         if(absPDGcode == 22)
00035         {
00036                 G4int it=1;
00037                 if(G4UniformRand()<.5) it++;
00038                 *aEnd = it;
00039                 *bEnd = -it;
00040         }
00041         else
00042         {
00043                 G4int heavy =  absPDGcode/100;
00044                 G4int light = (absPDGcode%100)/10;
00045                 G4int anti  = 1 - 2*(std::max(heavy, light)%2);
00046                 if (PDGcode < 0 ) anti = -anti;
00047                 heavy *=  anti;
00048                 light *= -anti;
00049                 if ( anti < 0) G4SwapObj(&heavy, &light);
00050                 *aEnd = heavy;
00051                 *bEnd = light;
00052         }
00053         return result;
00054 }

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