Geant4  10.00.p02
G4MesonSplitter.cc
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26 #include "G4MesonSplitter.hh"
27 #include "Randomize.hh"
28 
30 {
31  G4bool result = true;
32  G4int absPDGcode = std::abs(PDGcode);
33  if (absPDGcode >= 1000) return false;
34  if(absPDGcode == 22)
35  {
36  G4int it=1;
37  if(G4UniformRand()<.5) it++;
38  *aEnd = it;
39  *bEnd = -it;
40  }
41  else
42  {
43  G4int heavy = absPDGcode/100;
44  G4int light = (absPDGcode%100)/10;
45  G4int anti = 1 - 2*(std::max(heavy, light)%2);
46  if (PDGcode < 0 ) anti = -anti;
47  heavy *= anti;
48  light *= -anti;
49  if ( anti < 0) G4SwapObj(&heavy, &light);
50  *aEnd = heavy;
51  *bEnd = light;
52  }
53  return result;
54 }
void G4SwapObj(T *a, T *b)
Definition: templates.hh:129
int G4int
Definition: G4Types.hh:78
#define G4UniformRand()
Definition: Randomize.hh:87
bool G4bool
Definition: G4Types.hh:79
T max(const T t1, const T t2)
brief Return the largest of the two arguments
G4bool SplitMeson(G4int PDGcode, G4int *aEnd, G4int *bEnd)