| Geant4 Cross Reference |
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26 //
27 // -------------------------------------------
28 // GEANT4 Class file
29 //
30 // For information related to this code c
31 //
32 // File name: G4XAqmElastic
33 //
34 // Author:
35 //
36 // Creation date: 15 April 1999
37 //
38 // Modifications:
39 //
40 // Additive Quark Model Elastic cross section
41 // (H.J. Lipkin and F. Scheck, Phys.Rev. 16 (1
42 //
43 // -------------------------------------------
44
45 #include "globals.hh"
46 #include "G4ios.hh"
47 #include "G4Pow.hh"
48 #include "G4XAqmElastic.hh"
49 #include "G4XAqmTotal.hh"
50 #include "G4KineticTrack.hh"
51
52
53 // Validity range of this cross-section
54 const G4double G4XAqmElastic::_lowLimit = 0.;
55 const G4double G4XAqmElastic::_highLimit = DBL
56
57 G4XAqmElastic::G4XAqmElastic()
58 {
59 // As a first approximation the model is ass
60 // the entire energy range
61 }
62
63
64 G4XAqmElastic::~G4XAqmElastic()
65 { }
66
67
68 G4bool G4XAqmElastic::operator==(const G4XAqmE
69 {
70 return (this == (G4XAqmElastic *) &right);
71 }
72
73
74 G4bool G4XAqmElastic::operator!=(const G4XAqmE
75 {
76 return (this != (G4XAqmElastic *) &right);
77 }
78
79
80 G4double G4XAqmElastic::CrossSection(const G4K
81 {
82 G4double sigma = 0.;
83
84 // Reference to be checked!!!!!!!!!!!!!!!!!!
85 static const G4double coeff = 0.39;
86 static const G4double param = 1.5;
87
88 G4XAqmTotal aqmTotal;
89
90 G4double sigmaTot = aqmTotal.CrossSection(tr
91 sigma = coeff * G4Pow::GetInstance()->powA(s
92
93 // Verify that elastic cross section < total
94
95 if (sigma > sigmaTot)
96 throw G4HadronicException(__FILE__, __LINE
97
98 return sigma;
99 }
100
101
102 G4String G4XAqmElastic::Name() const
103 {
104 G4String name("AqmElasticCrossSection");
105 return name;
106 }
107
108
109 G4bool G4XAqmElastic::IsValid(G4double e) cons
110 {
111 G4bool answer = InLimits(e,_lowLimit,_highLi
112
113 return answer;
114 }
115