G4VEmissionProbability.hh

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//
// Hadronic Process: Nuclear De-excitations
// by V. Lara (Oct 1998) 
//
// Modif (03 September 2008) by J. M. Quesada for external choice of inverse 
// cross section option
// JMQ (06 September 2008) Also external choices have been added for 
// superimposed Coulomb barrier (if useSICB is set true, by default is false) 
//
// V.Ivanchenko general clean-up since 2010
//
 
#ifndef G4VEmissionProbability_h
#define G4VEmissionProbability_h 1
 
#include "globals.hh"
#include "G4Fragment.hh"
 
class G4NuclearLevelData;
class G4Pow;
 
class G4VEmissionProbability 
{
public:
 
  explicit G4VEmissionProbability(G4int Z, G4int A);
 
  virtual ~G4VEmissionProbability() = default;
 
  void Initialise();
 
  virtual G4double EmissionProbability(const G4Fragment & fragment, 
                       G4double anEnergy);
 
  virtual G4double ComputeProbability(G4double anEnergy, G4double CB);
 
  inline G4int GetZ(void) const { return theZ; }
    
  inline G4int GetA(void) const { return theA; }
 
  // Z, A, rmass are residual parameters
  // fmass is SCM mass of decaying nucleus
  // exc is an excitation of emitted fragment
  inline void SetDecayKinematics(G4int rZ, G4int rA, G4double rmass, 
                                 G4double fmass);
 
  inline G4double GetRecoilExcitation() const { return fExcRes; };
 
  inline void SetEvapExcitation(G4double exc) { fExc = exc; };
 
  inline G4double GetProbability() const { return pProbability; };
 
  inline void ResetProbability() { pProbability = 0.0; };
 
  // this method may be called only if the probability is computed
  // for given initial fragment and decay channel
  G4double SampleEnergy();
 
  G4VEmissionProbability(const G4VEmissionProbability &right) = delete;
  const G4VEmissionProbability & operator=
  (const G4VEmissionProbability &right) = delete;
  G4bool operator==(const G4VEmissionProbability &right) const = delete;
  G4bool operator!=(const G4VEmissionProbability &right) const = delete;
 
protected:
 
  void ResetIntegrator(size_t nbin, G4double de, G4double eps);
 
  G4double IntegrateProbability(G4double elow, G4double ehigh, G4double CB);
 
  G4NuclearLevelData* pNuclearLevelData;
  G4Pow* pG4pow;
 
  G4int OPTxs;
  G4int pVerbose;
  G4int theZ;
  G4int theA;
  G4int resZ = 0;
  G4int resA = 0;
 
  G4double pMass = 0.0; // initial fragment
  G4double pEvapMass = 0.0;
  G4double pResMass = 0.0;
  G4double pProbability = 0.0;
  G4double pTolerance = 0.0;
 
private:
 
  G4double FindRecoilExcitation(const G4double e);
 
  G4double fExc = 0.0;
  G4double fExcRes = 0.0;
 
  G4double fE1 = 0.0;
  G4double fE2 = 0.0; 
  G4double fP2 = 0.0; 
 
  G4double emin = 0.0;
  G4double emax = 0.0;
  G4double eCoulomb = 0.0;
  G4double accuracy = 0.005;
  G4double probmax = 0.0;
  G4double elimit;
 
  G4bool fFD = false;
};
 
inline void 
G4VEmissionProbability::SetDecayKinematics(G4int rZ, G4int rA, G4double rmass, 
                                           G4double fmass)
{
  resZ = rZ;
  resA = rA;
  pMass = fmass;
  pResMass = rmass;
}
 
#endif