G4PreCompoundProton.cc

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// $Id: G4PreCompoundProton.cc 90337 2015-05-26 08:34:27Z gcosmo $
//
// -------------------------------------------------------------------
//
// GEANT4 Class file
//
//
// File name:     G4PreCompoundProton
//
// Author:         V.Lara
//
// Modified:  
// 21.08.2008 J. M. Quesada added external choice of inverse cross section option
// 21.08.2008 J. M. Quesada added external choice for superimposed Coulomb 
//                          barrier (if useSICB=true) 
// 20.08.2010 V.Ivanchenko added G4Pow and G4PreCompoundParameters pointers
//                         use int Z and A and cleanup
//

#include "G4PreCompoundProton.hh"
#include "G4PhysicalConstants.hh"
#include "G4SystemOfUnits.hh"
#include "G4Proton.hh"
#include "G4Log.hh"
#include "G4Exp.hh"

G4PreCompoundProton::G4PreCompoundProton()
  : G4PreCompoundNucleon(G4Proton::Proton(), &theProtonCoulombBarrier)
{}

G4PreCompoundProton::~G4PreCompoundProton()
{}

G4double G4PreCompoundProton::GetRj(G4int nParticles, G4int nCharged) const
{
  G4double rj = 0.0;
  if(nParticles > 0) { 
    rj = static_cast<G4double>(nCharged)/static_cast<G4double>(nParticles);
  }
  return rj;
}

G4double G4PreCompoundProton::GetAlpha() const
{
  G4double C = 0.0;
  if (theResZ >= 70) 
    {
      C = 0.10;
    } 
  else 
    {
      C = ((((0.15417e-06*theResZ) - 0.29875e-04)*theResZ 
            + 0.21071e-02)*theResZ - 0.66612e-01)*theResZ + 0.98375;
    }
  return 1.0 + C;
}

G4double G4PreCompoundProton::GetBeta() const
{
  return -theCoulombBarrier;
}