Geant4  10.01.p01
G4XAqmElastic.cc
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27 // -------------------------------------------------------------------
28 // GEANT4 Class file
29 //
30 // For information related to this code contact:
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 (1966) 71
42 //
43 // -------------------------------------------------------------------
44 
45 #include "globals.hh"
46 #include "G4ios.hh"
47 #include "G4XAqmElastic.hh"
48 #include "G4XAqmTotal.hh"
49 #include "G4KineticTrack.hh"
50 
51 
52 // Validity range of this cross-section
55 
57 {
58  // As a first approximation the model is assumed to be valid over
59  // the entire energy range
60 }
61 
62 
64 { }
65 
66 
68 {
69  return (this == (G4XAqmElastic *) &right);
70 }
71 
72 
74 {
75  return (this != (G4XAqmElastic *) &right);
76 }
77 
78 
80 {
81  G4double sigma = 0.;
82 
83  // Reference to be checked!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
84  static const G4double coeff = 0.39;
85  static const G4double param = 1.5;
86 
87  G4XAqmTotal aqmTotal;
88 
89  G4double sigmaTot = aqmTotal.CrossSection(trk1,trk2);
90  sigma = coeff * std::pow(sigmaTot,param);
91 
92  // Verify that elastic cross section < total cross section
93 
94  if (sigma > sigmaTot)
95  throw G4HadronicException(__FILE__, __LINE__, "G4XAqmElastic::CrossSection - elastic cross section greater than total");
96 
97  return sigma;
98 }
99 
100 
102 {
103  G4String name("AqmElasticCrossSection");
104  return name;
105 }
106 
107 
109 {
110  G4bool answer = InLimits(e,_lowLimit,_highLimit);
111 
112  return answer;
113 }
virtual G4bool IsValid(G4double e) const
virtual ~G4XAqmElastic()
G4bool operator==(const G4XAqmElastic &right) const
G4String name
Definition: TRTMaterials.hh:40
static const G4double _highLimit
virtual G4double CrossSection(const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
Definition: G4XAqmTotal.cc:80
G4bool operator!=(const G4XAqmElastic &right) const
bool G4bool
Definition: G4Types.hh:79
virtual G4double CrossSection(const G4KineticTrack &trk1, const G4KineticTrack &trk2) const
static const G4double _lowLimit
virtual G4String Name() const
double G4double
Definition: G4Types.hh:76
#define DBL_MAX
Definition: templates.hh:83
G4bool InLimits(G4double e, G4double eLow, G4double eHigh) const