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26 //
27 //
28 // Geant4 Header : G4AntiNuclElastic
29 //
30 // Author : A. Galoyan
31 //
32 // Class Description
33 // Model for AntiNuclear Nuclear Elastic Scattering;
34 // Class Description - End
35
36 #ifndef G4AntiNuclElastic_h
37 #define G4AntiNuclElastic_h 1
38
39 #include "G4HadronElastic.hh"
40 #include "globals.hh"
41 #include "G4Nucleus.hh"
42 #include "G4ComponentAntiNuclNuclearXS.hh"
43
44 class G4ParticleDefinition;
45
46 class G4AntiNuclElastic : public G4HadronElastic
47 {
48 public:
49
50 explicit G4AntiNuclElastic();
51
52 ~G4AntiNuclElastic() override;
53
54 G4double SampleInvariantT(const G4ParticleDefinition* p,
55 G4double plab, G4int Z, G4int A) override;
56
57 G4double SampleThetaCMS(const G4ParticleDefinition* p, G4double plab,
58 G4int Z, G4int A);
59
60 G4double SampleThetaLab(const G4ParticleDefinition* p,
61 G4double plab, G4int Z, G4int A);
62
63
64 G4double CalculateParticleBeta( const G4ParticleDefinition* particle,
65 G4double momentum );
66
67 G4double CalculateZommerfeld( G4double beta, G4double Z1, G4double Z2 );
68
69 G4double CalculateAm( G4double momentum, G4double n, G4double Z);
70
71 G4double DampFactor(G4double z);
72
73 G4double BesselJzero(G4double z);
74
75 G4double BesselJone(G4double z);
76
77 G4double BesselOneByArg(G4double z);
78
79 G4double GetcosTeta1( G4double plab, G4int A);
80
81 inline G4ComponentAntiNuclNuclearXS* GetComponentCrossSection();
82
83 private:
84
85 // Assignment operator and copy constructor
86 G4AntiNuclElastic & operator=(const G4AntiNuclElastic &right);
87 G4AntiNuclElastic(const G4AntiNuclElastic&);
88
89 G4ComponentAntiNuclNuclearXS* cs; //cross section of antiA-A interaction
90 const G4ParticleDefinition* fParticle;
91
92 G4double fTetaCMS; // sampled Theta in CMS
93 G4double fThetaLab; //sampled Theta in Lab system
94 G4double fWaveVector;
95 G4double fBeta; // velosity of projectile
96 G4double fZommerfeld; // parameter of Zommerfeld for calculation of Coulomb cross-section
97 G4double fAm; // parameter for calculation of Coulomb cross-section
98 G4double fRa; // Radius of target
99 G4double fRef; // Effective radiuse for Calculation of hadron cross-section
100 G4double fceff; // Effective diffuse parameter
101
102 G4ThreeVector fbst; // boost vector
103 G4double fptot; // momentum of projectile in CMS system
104 G4double fTmax;
105
106 G4ParticleDefinition* theAProton;
107 G4ParticleDefinition* theANeutron;
108 G4ParticleDefinition* theADeuteron;
109 G4ParticleDefinition* theATriton;
110 G4ParticleDefinition* theAAlpha;
111 G4ParticleDefinition* theAHe3;
112
113 G4ParticleDefinition* theProton;
114 G4ParticleDefinition* theNeutron;
115 G4ParticleDefinition* theDeuteron;
116 G4ParticleDefinition* theAlpha;
117
118 };
119
120 inline G4ComponentAntiNuclNuclearXS*
121 G4AntiNuclElastic::GetComponentCrossSection()
122 {
123 return cs;
124 }
125
126 #endif
127
128
129