include/Geant4/G4HETCFragment.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
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0019 // * technical work of the GEANT4 collaboration.                      *
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0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 //
0027 // by V. Lara
0028 //
0029 // Modified:
0030 // 20.08.2010 V.Ivanchenko added G4Pow and G4PreCompoundParameters pointers
0031 //                         use int Z and A and cleanup
0032
0033 #ifndef G4HETCFragment_h
0034 #define G4HETCFragment_h 1
0035
0036 #include "G4VPreCompoundFragment.hh"
0037 #include "Randomize.hh"
0038
0039 class G4HETCFragment : public G4VPreCompoundFragment
0040 {
0041 public:
0042
0043   G4HETCFragment(const G4ParticleDefinition*, G4VCoulombBarrier* p = nullptr);
0044
0045   ~G4HETCFragment() override = default;
0046
0047   G4double CalcEmissionProbability(const G4Fragment& aFragment) override;
0048
0049   G4HETCFragment(const G4HETCFragment &right) = delete;
0050   const G4HETCFragment& operator = (const G4HETCFragment &right) = delete;
0051   G4bool operator==(const G4HETCFragment &right) const = delete;
0052   G4bool operator!=(const G4HETCFragment &right) const = delete;
0053
0054 protected:
0055
0056   virtual G4double K(const G4Fragment& aFragment) const = 0;
0057   virtual G4double GetSpinFactor() const = 0;
0058
0059   inline G4double BetaRand(G4int N, G4int L) const;
0060
0061 private:
0062
0063   // This method performs integration for probability function over
0064   // fragment kinetic energy
0065   G4double IntegrateEmissionProbability(G4double Low, G4double Up,
0066                     const G4Fragment&);
0067
0068   G4double r2norm;
0069 };
0070
0071 inline G4double G4HETCFragment::BetaRand(G4int N, G4int L) const
0072 {
0073   G4double Y1 = G4RandGamma::shoot(N,1);
0074   G4double Y2 = G4RandGamma::shoot(L,1);
0075
0076   return Y1/(Y1+Y2);
0077 }
0078
0079 #endif