Geant4  10.02.p02
G4He3CoulombBarrier.cc
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27 // $Id: G4He3CoulombBarrier.cc 67983 2013-03-13 10:42:03Z gcosmo $
28 //
29 // Hadronic Process: Nuclear De-excitations
30 // by V. Lara (Dec 1999)
31 
32 
33 #include "G4He3CoulombBarrier.hh"
34 
37 
39 {
40  // Data comes from
41  // Dostrovsky, Fraenkel and Friedlander
42  // Physical Review, vol 116, num. 3 1959
43  //
44  // const G4int size = 5;
45  // const G4double Zlist[size] = {10.0, 20.0, 30.0, 50.0, 70.0};
46  // const G4double KHe3[size] = {0.68, 0.82, 0.91, 0.97, 0.98};
47  //
48  // K for He3 is K for alphas + 0.12
49  G4double K = 1.0;
50  if (aZ>=70.0) {
51  K = 0.98;
52  } else {
53  K = (((0.23684e-5*aZ) - 0.42143e-3)*aZ + 0.25222e-1)*aZ + 0.46699;
54  }
55  return K+0.12;
56 }
virtual G4double BarrierPenetrationFactor(G4double aZ) const
double G4double
Definition: G4Types.hh:76