| Geant4 Cross Reference |
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27 // -------------------------------------------
28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4DiffElasticRatio
33 //
34 // Author: V.Grichine 07.10.2014
35 //
36 // Modifications:
37 //
38 // 16.03.15 V. Grichine safety against H ( A >
39
40 #include "G4DiffElasticRatio.hh"
41 #include "G4ParticleDefinition.hh"
42 #include "G4DiffElasticRatio.hh"
43 #include "G4ComponentGGHadronNucleusXsc.hh"
44
45 G4DiffElasticRatio::G4DiffElasticRatio(const G
46 : G4VCrossSectionRatio( nam, verb)
47 {
48 fGGXsc = new G4ComponentGGHadronNucleusXsc()
49 fDDthreshold = 450.*CLHEP::MeV; // ~3 pi mas
50 }
51
52 G4DiffElasticRatio::~G4DiffElasticRatio()
53 {
54 if(fGGXsc) delete fGGXsc;
55 }
56
57
58 G4double G4DiffElasticRatio::ComputeRatio(cons
59 G4double kinEnergy,
60 G4int Z, G4int A)
61 {
62 G4double ratio = 0.;
63
64 if( A > 1 && kinEnergy > fDDthreshold )
65 {
66 G4double ggElXsc = fGGXsc->GetElasticEleme
67
68 G4double ggsdXsc = fGGXsc->GetDiffractionG
69
70 if( ggElXsc > 0.) ratio = ggsdXsc/ggElXsc;
71 else ratio = 0;
72 }
73 // G4cout<<theParticleDefinition->GetParticl
74 return ratio;
75 }
76