G4DeuteronCoulombBarrier.cc

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// $Id: G4DeuteronCoulombBarrier.cc 97097 2016-05-25 07:50:31Z gcosmo $
//
// Hadronic Process: Nuclear De-excitations
// by V. Lara (Dec 1999)


#include "G4DeuteronCoulombBarrier.hh"

G4DeuteronCoulombBarrier::G4DeuteronCoulombBarrier() : G4CoulombBarrier(2,1) {}
G4DeuteronCoulombBarrier::~G4DeuteronCoulombBarrier() {}

G4double G4DeuteronCoulombBarrier::BarrierPenetrationFactor(G4int aZ) const
{
  // Data comes from 
  // Dostrovsky, Fraenkel and Friedlander
  // Physical Review, vol 116, num. 3 1959
  // 
  // const G4int size = 5;
  // const G4double Zlist[size] = {10.0, 20.0, 30.0, 50.0, 70.0};
  // const G4double Kprot[size] = {0.42, 0.58, 0.68, 0.77, 0.80};
  // 
  // K for deuteron is K for protons + 0.06
  G4double K = (aZ >= 70) ? 0.80 :
    (((0.2357e-5*aZ) - 0.42679e-3)*aZ + 0.27035e-1)*aZ + 0.19025;
  return K+0.06;
}