source: trunk/source/processes/hadronic/cross_sections/src/G4BGGNucleonInelasticXS.cc@ 900

Last change on this file since 900 was 819, checked in by garnier, 17 years ago

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1//
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15// * use. Please see the license in the file LICENSE and URL above *
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17// * *
18// * This code implementation is the result of the scientific and *
19// * technical work of the GEANT4 collaboration. *
20// * By using, copying, modifying or distributing the software (or *
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24// ********************************************************************
25//
26// $Id: G4BGGNucleonInelasticXS.cc,v 1.1 2007/03/13 15:19:30 vnivanch Exp $
27// GEANT4 tag $Name: $
28//
29// -------------------------------------------------------------------
30//
31// GEANT4 Class file
32//
33//
34// File name: G4BGGNucleonInelasticXS
35//
36// Author: Vladimir Ivanchenko
37//
38// Creation date: 13.03.2007
39// Modifications:
40//
41//
42// -------------------------------------------------------------------
43//
44
45#include "G4BGGNucleonInelasticXS.hh"
46#include "G4GlauberGribovCrossSection.hh"
47#include "G4NucleonNuclearCrossSection.hh"
48#include "G4Proton.hh"
49#include "G4Neutron.hh"
50#include "G4NistManager.hh"
51
52//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
53
54G4BGGNucleonInelasticXS::G4BGGNucleonInelasticXS(const G4ParticleDefinition* p)
55{
56 verboseLevel = 0;
57 thEnergy = 100.*GeV;
58 if(p == G4Proton::Proton() || p == G4Neutron::Neutron()) {
59 fNucleon = new G4NucleonNuclearCrossSection();
60 fGlauber = new G4GlauberGribovCrossSection();
61 particle = p;
62 Initialise();
63 } else {
64 fNucleon = 0;
65 fGlauber = 0;
66 particle = 0;
67 if(p) G4cout << "### G4BGGNucleonInelasticXS WARNING: is not applicable to "
68 << p->GetParticleName()
69 << G4endl;
70 else G4cout << "### G4BGGNucleonInelasticXS WARNING: particle is not defined "
71 << G4endl;
72 }
73}
74
75//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
76
77G4BGGNucleonInelasticXS::~G4BGGNucleonInelasticXS()
78{
79 delete fGlauber;
80 delete fNucleon;
81}
82
83//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
84
85G4double G4BGGNucleonInelasticXS::GetIsoZACrossSection(const G4DynamicParticle* dp,
86 G4double Z,
87 G4double A,
88 G4double)
89{
90 G4double cross = 0.0;
91 G4double ekin = dp->GetKineticEnergy();
92 G4int iz = G4int(Z + 0.5);
93 if(iz > 92) iz = 92;
94
95 if(ekin > thEnergy) {
96 cross = theFac[iz]*fGlauber->GetInelasticGlauberGribov(dp, Z, A);
97 } else {
98 cross = fNucleon->GetIsoZACrossSection(dp, Z, A);
99 }
100
101 if(verboseLevel > 1)
102 G4cout << "G4BGGNucleonInelasticXS::GetCrossSection for "
103 << dp->GetDefinition()->GetParticleName()
104 << " Ekin(GeV)= " << dp->GetKineticEnergy()
105 << " in nucleus Z= " << Z << " A= " << A
106 << " XS(b)= " << cross/barn
107 << G4endl;
108
109 return cross;
110}
111
112//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
113
114void G4BGGNucleonInelasticXS::BuildPhysicsTable(const G4ParticleDefinition&)
115{
116}
117
118//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
119
120void G4BGGNucleonInelasticXS::DumpPhysicsTable(const G4ParticleDefinition&)
121{
122 G4cout << "G4BGGNucleonInelasticXS:"<<G4endl;
123}
124
125//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
126
127void G4BGGNucleonInelasticXS::Initialise()
128{
129 G4ParticleDefinition* part = const_cast<G4ParticleDefinition*>(particle);
130 G4ThreeVector mom(0.0,0.0,1.0);
131 G4DynamicParticle dp(part, mom, thEnergy);
132
133 G4NistManager* nist = G4NistManager::Instance();
134 G4double A = nist->GetAtomicMassAmu(2);
135
136 G4double csup, csdn;
137
138 if(verboseLevel > 0) G4cout << "### G4BGGNucleonInelasticXS::Initialise for "
139 << particle->GetParticleName() << G4endl;
140
141 for(G4int iz=2; iz<93; iz++) {
142
143 G4double Z = G4double(iz);
144 A = nist->GetAtomicMassAmu(iz);
145
146 csup = fGlauber->GetInelasticGlauberGribov(&dp, Z, A);
147 csdn = fNucleon->GetIsoZACrossSection(&dp, Z, A);
148
149 theFac[iz] = csdn/csup;
150 if(verboseLevel > 0) G4cout << "Z= " << Z << " A= " << A
151 << " factor= " << theFac[iz] << G4endl;
152 }
153}
154
155//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
156
157
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