| Geant4 Cross Reference |
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25 //
26 //
27 // J. M. Quesada (August 2008).
28 // Based on previous work by V. Lara
29 //
30 // Modified:
31 // 03.09.2008 by J. M. Quesada for external choice of inverse
32 // cross section option (default OPTxs=2)
33 // 06.09.2008 by JMQ Also external choice has been added for
34 // superimposed Coulomb barrier (if useSICB=true, default false)
35 // 20.08.2010 V.Ivanchenko added int Z and A and cleanup; added
36 // G4ParticleDefinition to constructor
37
38 #ifndef G4PreCompoundFragment_h
39 #define G4PreCompoundFragment_h 1
40
41 #include "G4VPreCompoundFragment.hh"
42
43 class G4PreCompoundFragment : public G4VPreCompoundFragment
44 {
45 public:
46
47 G4PreCompoundFragment(const G4ParticleDefinition*,
48 G4VCoulombBarrier * aCoulombBarrier);
49
50 ~G4PreCompoundFragment() override = default;
51
52 // ================================================
53 // Methods for calculating the emission probability
54 // ================================================
55
56 // Calculates the total (integrated over kinetic energy) emission
57 // probability of a fragment
58 G4double CalcEmissionProbability(const G4Fragment& aFragment) override;
59
60 G4double SampleKineticEnergy(const G4Fragment& aFragment) override;
61
62 G4double CrossSection(G4double ekin);
63
64 G4double RecentXS() const { return recentXS; };
65
66 G4PreCompoundFragment(const G4PreCompoundFragment &right) = delete;
67 const G4PreCompoundFragment&
68 operator= (const G4PreCompoundFragment &right) = delete;
69 G4bool operator==(const G4PreCompoundFragment &right) const = delete;
70 G4bool operator!=(const G4PreCompoundFragment &right) const = delete;
71
72 protected:
73
74 virtual G4double
75 ProbabilityDistributionFunction(G4double ekin,
76 const G4Fragment & aFragment) = 0;
77
78 private:
79
80 // This method performs integration for probability function over
81 // fragment kinetic energy
82 G4double IntegrateEmissionProbability(G4double low, G4double up,
83 const G4Fragment & aFragment);
84
85 G4double GetOpt0(G4double ekin) const;
86
87 G4int lastA{0};
88
89 G4double muu{0.0};
90 G4double probmax{0.0};
91 G4double recentXS{0.0};
92 };
93
94 #endif
95