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28 // 28 //
29 // GEANT4 Class file 29 // GEANT4 Class file
30 // 30 //
31 // 31 //
32 // File name: G4DiffElasticRatio 32 // File name: G4DiffElasticRatio
33 // 33 //
34 // Author: V.Grichine 07.10.2014 34 // Author: V.Grichine 07.10.2014
35 // 35 //
36 // Modifications: 36 // Modifications:
37 // 37 //
38 // 16.03.15 V. Grichine safety against H ( A > 38 // 16.03.15 V. Grichine safety against H ( A > 1 only )
39 39
40 #include "G4DiffElasticRatio.hh" 40 #include "G4DiffElasticRatio.hh"
41 #include "G4ParticleDefinition.hh" 41 #include "G4ParticleDefinition.hh"
42 #include "G4DiffElasticRatio.hh" 42 #include "G4DiffElasticRatio.hh"
43 #include "G4ComponentGGHadronNucleusXsc.hh" 43 #include "G4ComponentGGHadronNucleusXsc.hh"
44 44
45 G4DiffElasticRatio::G4DiffElasticRatio(const G 45 G4DiffElasticRatio::G4DiffElasticRatio(const G4String& nam, G4int verb)
46 : G4VCrossSectionRatio( nam, verb) 46 : G4VCrossSectionRatio( nam, verb)
47 { 47 {
48 fGGXsc = new G4ComponentGGHadronNucleusXsc() 48 fGGXsc = new G4ComponentGGHadronNucleusXsc();
49 fDDthreshold = 450.*CLHEP::MeV; // ~3 pi mas 49 fDDthreshold = 450.*CLHEP::MeV; // ~3 pi masses
50 } 50 }
51 51
52 G4DiffElasticRatio::~G4DiffElasticRatio() 52 G4DiffElasticRatio::~G4DiffElasticRatio()
53 { 53 {
54 if(fGGXsc) delete fGGXsc; 54 if(fGGXsc) delete fGGXsc;
55 } 55 }
56 56
57 57
58 G4double G4DiffElasticRatio::ComputeRatio(cons 58 G4double G4DiffElasticRatio::ComputeRatio(const G4ParticleDefinition* theParticleDefinition,
59 G4double kinEnergy, 59 G4double kinEnergy,
60 G4int Z, G4int A) 60 G4int Z, G4int A)
61 { 61 {
62 G4double ratio = 0.; 62 G4double ratio = 0.;
63 63
64 if( A > 1 && kinEnergy > fDDthreshold ) 64 if( A > 1 && kinEnergy > fDDthreshold )
65 { 65 {
66 G4double ggElXsc = fGGXsc->GetElasticEleme 66 G4double ggElXsc = fGGXsc->GetElasticElementCrossSection(theParticleDefinition,kinEnergy,
67 67 Z,A);
68 G4double ggsdXsc = fGGXsc->GetDiffractionG 68 G4double ggsdXsc = fGGXsc->GetDiffractionGlauberGribovXsc();
69 69
70 if( ggElXsc > 0.) ratio = ggsdXsc/ggElXsc; 70 if( ggElXsc > 0.) ratio = ggsdXsc/ggElXsc;
71 else ratio = 0; 71 else ratio = 0;
72 } 72 }
73 // G4cout<<theParticleDefinition->GetParticl 73 // G4cout<<theParticleDefinition->GetParticleName()<<"; "<<kinEnergy/CLHEP::GeV<<" GeV; r = "<<ratio<<G4endl;
74 return ratio; 74 return ratio;
75 } 75 }
76 76