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Geant4/processes/hadronic/cross_sections/src/G4BGGNucleonInelasticXS.cc

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Differences between /processes/hadronic/cross_sections/src/G4BGGNucleonInelasticXS.cc (Version 11.3.0) and /processes/hadronic/cross_sections/src/G4BGGNucleonInelasticXS.cc (Version 9.6)


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 25 //                                                 25 //
                                                   >>  26 // $Id$
                                                   >>  27 //
 26 // -------------------------------------------     28 // -------------------------------------------------------------------
 27 //                                                 29 //
 28 // GEANT4 Class file                               30 // GEANT4 Class file
 29 //                                                 31 //
 30 //                                                 32 //
 31 // File name:     G4BGGNucleonInelasticXS          33 // File name:     G4BGGNucleonInelasticXS
 32 //                                                 34 //
 33 // Author:        Vladimir Ivanchenko              35 // Author:        Vladimir Ivanchenko
 34 //                                                 36 //
 35 // Creation date: 13.03.2007                       37 // Creation date: 13.03.2007
 36 // Modifications:                                  38 // Modifications:
 37 //                                                 39 //
 38 //                                                 40 //
 39 // -------------------------------------------     41 // -------------------------------------------------------------------
 40 //                                                 42 //
 41                                                    43 
 42 #include "G4BGGNucleonInelasticXS.hh"              44 #include "G4BGGNucleonInelasticXS.hh"
 43 #include "G4SystemOfUnits.hh"                      45 #include "G4SystemOfUnits.hh"
 44 #include "G4ComponentGGHadronNucleusXsc.hh"    <<  46 #include "G4GlauberGribovCrossSection.hh"
 45 #include "G4NucleonNuclearCrossSection.hh"         47 #include "G4NucleonNuclearCrossSection.hh"
 46 #include "G4HadronNucleonXsc.hh"                   48 #include "G4HadronNucleonXsc.hh"
                                                   >>  49 //#include "G4HadronInelasticDataSet.hh"
 47 #include "G4ComponentSAIDTotalXS.hh"               50 #include "G4ComponentSAIDTotalXS.hh"
 48 #include "G4Proton.hh"                             51 #include "G4Proton.hh"
 49 #include "G4Neutron.hh"                            52 #include "G4Neutron.hh"
 50 #include "G4NistManager.hh"                        53 #include "G4NistManager.hh"
 51 #include "G4Material.hh"                           54 #include "G4Material.hh"
 52 #include "G4Element.hh"                            55 #include "G4Element.hh"
 53 #include "G4Isotope.hh"                            56 #include "G4Isotope.hh"
 54 #include "G4Log.hh"                            << 
 55 #include "G4Exp.hh"                            << 
 56 #include "G4NuclearRadii.hh"                   << 
 57                                                << 
 58 //....oooOO0OOooo........oooOO0OOooo........oo << 
 59                                                    57 
 60 namespace                                      <<  58 #include "G4CrossSectionDataSetRegistry.hh"
 61 {                                              << 
 62   const G4double llog10 = G4Log(10.);          << 
 63 }                                              << 
 64                                                    59 
 65 G4double G4BGGNucleonInelasticXS::theGlauberFa <<  60 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 66 G4double G4BGGNucleonInelasticXS::theCoulombFa << 
 67 G4double G4BGGNucleonInelasticXS::theGlauberFa << 
 68 G4double G4BGGNucleonInelasticXS::theCoulombFa << 
 69 G4int G4BGGNucleonInelasticXS::theA[93] = {0}; << 
 70                                                    61 
 71 G4BGGNucleonInelasticXS::G4BGGNucleonInelastic     62 G4BGGNucleonInelasticXS::G4BGGNucleonInelasticXS(const G4ParticleDefinition* p)
 72  : G4VCrossSectionDataSet("BarashenkovGlauberG <<  63  : G4VCrossSectionDataSet("Barashenkov-Glauber")
 73 {                                                  64 {
 74   verboseLevel = 0;                                65   verboseLevel = 0;
 75   fGlauberEnergy = 91.*CLHEP::GeV;             <<  66   fGlauberEnergy = 91.*GeV;
 76   fLowEnergy = 14.*CLHEP::MeV;                 <<  67   fLowEnergy = 14.*MeV;
 77                                                <<  68   fHighEnergy = 5.*GeV;
 78   fNucleon = new G4NucleonNuclearCrossSection( <<  69   fSAIDHighEnergyLimit = 1.3*GeV;
 79   fGlauber = new G4ComponentGGHadronNucleusXsc <<  70   for (G4int i = 0; i < 93; ++i) {
 80   fHadron  = new G4HadronNucleonXsc();         <<  71     theGlauberFac[i] = 0.0;
 81                                                <<  72     theCoulombFac[i] = 0.0;
                                                   >>  73     theA[i] = 1;
                                                   >>  74   }
                                                   >>  75   fNucleon = 0;
                                                   >>  76   fGlauber = 0;
                                                   >>  77   fHadron  = 0;
                                                   >>  78   //  fGHEISHA = 0;
                                                   >>  79   fSAID    = 0;
                                                   >>  80   particle = p;
 82   theProton= G4Proton::Proton();                   81   theProton= G4Proton::Proton();
 83   isProton = (theProton == p);                 <<  82   isProton = false;
 84   SetForAllAtomsAndEnergies(true);             <<  83   isInitialized = false;
 85                                                << 
 86   if (0 == theA[0]) { Initialise(); }          << 
 87 }                                                  84 }
 88                                                    85 
 89 //....oooOO0OOooo........oooOO0OOooo........oo     86 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 90                                                    87 
 91 G4BGGNucleonInelasticXS::~G4BGGNucleonInelasti     88 G4BGGNucleonInelasticXS::~G4BGGNucleonInelasticXS()
 92 {                                                  89 {
 93   delete fHadron;                                  90   delete fHadron;
                                                   >>  91   delete fSAID;
 94 }                                                  92 }
 95                                                    93 
 96 //....oooOO0OOooo........oooOO0OOooo........oo     94 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 97                                                    95 
 98 G4bool G4BGGNucleonInelasticXS::IsElementAppli     96 G4bool G4BGGNucleonInelasticXS::IsElementApplicable(const G4DynamicParticle*, 
 99                                                <<  97                 G4int, const G4Material*)
100 {                                                  98 {
101   return true;                                     99   return true;
102 }                                                 100 }
103                                                   101 
104 //....oooOO0OOooo........oooOO0OOooo........oo    102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
105                                                   103 
106 G4bool G4BGGNucleonInelasticXS::IsIsoApplicabl    104 G4bool G4BGGNucleonInelasticXS::IsIsoApplicable(const G4DynamicParticle*, 
107                                                << 105             G4int Z, G4int A,  
108                                                << 106             const G4Element*,
109                                                << 107             const G4Material*)
110 {                                                 108 {
111   return (1 == Z);                             << 109   return (1 == Z && 2 >= A);
112 }                                                 110 }
113                                                   111 
114 //....oooOO0OOooo........oooOO0OOooo........oo    112 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
115                                                   113 
116 G4double                                          114 G4double
117 G4BGGNucleonInelasticXS::GetElementCrossSectio    115 G4BGGNucleonInelasticXS::GetElementCrossSection(const G4DynamicParticle* dp,
118                                                << 116             G4int ZZ, const G4Material*)
119 {                                                 117 {
                                                   >> 118   // this method should be called only for Z > 1
                                                   >> 119 
120   G4double cross = 0.0;                           120   G4double cross = 0.0;
121   G4double ekin = dp->GetKineticEnergy();         121   G4double ekin = dp->GetKineticEnergy();
122   G4int Z = std::min(ZZ, 92);                  << 122   G4int Z = ZZ;
123   if (1 == Z) {                                << 123   if(1 == Z) {
124     cross = 1.0115*GetIsoCrossSection(dp,1,1);    124     cross = 1.0115*GetIsoCrossSection(dp,1,1);
                                                   >> 125   } else if(2 == Z) {
                                                   >> 126     if(ekin > fGlauberEnergy) {
                                                   >> 127       cross = theGlauberFac[Z]*fGlauber->GetInelasticGlauberGribov(dp, Z, theA[Z]);
                                                   >> 128     } else {
                                                   >> 129       cross = fNucleon->GetElementCrossSection(dp, Z);
                                                   >> 130     }
                                                   >> 131 
125   } else {                                        132   } else {
126     if (ekin <= fLowEnergy) {                  << 133     if(Z > 92) { Z = 92; }
127       cross = CoulombFactor(ekin, Z);          << 134 
128       cross *= (isProton) ? theCoulombFacP[Z]  << 135     if(ekin <= fLowEnergy) {
129     } else if (ekin > fGlauberEnergy) {        << 136       cross = theCoulombFac[Z]*CoulombFactor(ekin, Z);
130       cross = fGlauber->GetInelasticGlauberGri << 137     } else if(ekin > fGlauberEnergy) {
131       cross *= (isProton) ? theGlauberFacP[Z]  << 138       cross = theGlauberFac[Z]*fGlauber->GetInelasticGlauberGribov(dp, Z, theA[Z]);
132     } else {                                      139     } else {
133       cross = fNucleon->GetElementCrossSection    140       cross = fNucleon->GetElementCrossSection(dp, Z);
134     }                                             141     }
135   }                                               142   }
136                                                   143 
137 #ifdef G4VERBOSE                               << 144   if(verboseLevel > 1) {
138   if (verboseLevel > 1) {                      << 
139     G4cout << "G4BGGNucleonInelasticXS::GetCro    145     G4cout << "G4BGGNucleonInelasticXS::GetCrossSection  for "
140            << dp->GetDefinition()->GetParticle << 146      << dp->GetDefinition()->GetParticleName()
141            << "  Ekin(GeV)= " << dp->GetKineti << 147      << "  Ekin(GeV)= " << dp->GetKineticEnergy()/CLHEP::GeV
142            << " in nucleus Z= " << Z << "  A=  << 148      << " in nucleus Z= " << Z << "  A= " << theA[Z]
143            << " XS(b)= " << cross/barn         << 149      << " XS(b)= " << cross/barn 
144            << G4endl;                          << 150      << G4endl;
145   }                                               151   }
146 #endif                                         << 
147   return cross;                                   152   return cross;
148 }                                                 153 }
149                                                   154 
150 //....oooOO0OOooo........oooOO0OOooo........oo    155 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
151                                                   156 
152 G4double                                          157 G4double
153 G4BGGNucleonInelasticXS::GetIsoCrossSection(co    158 G4BGGNucleonInelasticXS::GetIsoCrossSection(const G4DynamicParticle* dp,
154                                        G4int,  << 159               G4int Z, G4int A,
155                                        const G << 160               const G4Isotope*,
156                                        const G << 161               const G4Element*,
157                                        const G << 162               const G4Material*)
158 {                                                 163 {
159   // this method should be called only for Z =    164   // this method should be called only for Z = 1
160   fHadron->HadronNucleonXscNS(dp->GetDefinitio << 
161                            dp->GetKineticEnerg << 
162   G4double cross = A*fHadron->GetInelasticHadr << 
163                                                   165 
164 #ifdef G4VERBOSE                               << 166   G4double cross = 0.0;
                                                   >> 167   G4double ekin = dp->GetKineticEnergy();
                                                   >> 168 
                                                   >> 169   if(ekin <= fSAIDHighEnergyLimit) {
                                                   >> 170     cross = fSAID->GetInelasticIsotopeCrossSection(particle, ekin, 1, 1);
                                                   >> 171   } else if(ekin < fHighEnergy) {
                                                   >> 172     fHadron->GetHadronNucleonXscNS(dp, theProton);
                                                   >> 173     cross = (theCoulombFac[0]/ekin + 1)*fHadron->GetInelasticHadronNucleonXsc();
                                                   >> 174   } else {
                                                   >> 175     fHadron->GetHadronNucleonXscPDG(dp, theProton);
                                                   >> 176     cross = (theCoulombFac[1]/ekin + 1)*fHadron->GetInelasticHadronNucleonXsc();
                                                   >> 177   } 
                                                   >> 178   cross *= A; 
                                                   >> 179 
165   if(verboseLevel > 1) {                          180   if(verboseLevel > 1) {
166     G4cout << "G4BGGNucleonInelasticXS::GetIso << 181     G4cout << "G4BGGNucleonInelasticXS::GetCrossSection  for "
167            << dp->GetDefinition()->GetParticle << 182      << dp->GetDefinition()->GetParticleName()
168            << "  Ekin(GeV)= " << dp->GetKineti << 183      << "  Ekin(GeV)= " << dp->GetKineticEnergy()/CLHEP::GeV
169            << " in nucleus Z=1  A=" << A       << 184      << " in nucleus Z= " << Z << "  A= " << A
170            << " XS(b)= " << cross/barn         << 185      << " XS(b)= " << cross/barn 
171            << G4endl;                          << 186      << G4endl;
172   }                                               187   }
173 #endif                                         << 
174   return cross;                                   188   return cross;
175 }                                                 189 }
176                                                   190 
177 //....oooOO0OOooo........oooOO0OOooo........oo    191 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
178                                                   192 
179 void G4BGGNucleonInelasticXS::BuildPhysicsTabl    193 void G4BGGNucleonInelasticXS::BuildPhysicsTable(const G4ParticleDefinition& p)
180 {                                                 194 {
181   if(&p == theProton || &p == G4Neutron::Neutr    195   if(&p == theProton || &p == G4Neutron::Neutron()) {
182     isProton = (theProton == &p);              << 196     particle = &p;
183   } else {                                        197   } else {
184     G4ExceptionDescription ed;                 << 198     G4cout << "### G4BGGNucleonInelasticXS WARNING: is not applicable to " 
185     ed << "This BGG cross section is applicabl << 199      << p.GetParticleName()
186        << p.GetParticleName() << G4endl;       << 200      << G4endl;
187     G4Exception("G4BGGNucleonInelasticXS::Buil << 201     throw G4HadronicException(__FILE__, __LINE__,
188               FatalException, ed);             << 202     "G4BGGNucleonElasticXS::BuildPhysicsTable is used for wrong particle");
189     return;                                       203     return;
190   }                                               204   }
191 }                                              << 
192                                                   205 
193 //....oooOO0OOooo........oooOO0OOooo........oo << 206   if(isInitialized) { return; }
                                                   >> 207   isInitialized = true;
194                                                   208 
195 void G4BGGNucleonInelasticXS::Initialise()     << 209     fNucleon = (G4NucleonNuclearCrossSection*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4NucleonNuclearCrossSection::Default_Name());
196 {                                              << 210     fGlauber = (G4GlauberGribovCrossSection*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4GlauberGribovCrossSection::Default_Name());
197   theA[0] = theA[1] = 1;                       << 211 
                                                   >> 212     fHadron  = new G4HadronNucleonXsc();
                                                   >> 213   //fGHEISHA = new G4HadronInelasticDataSet();
                                                   >> 214   fSAID    = new G4ComponentSAIDTotalXS();
                                                   >> 215 
                                                   >> 216   fNucleon->BuildPhysicsTable(*particle);
                                                   >> 217   fGlauber->BuildPhysicsTable(*particle);
                                                   >> 218 
                                                   >> 219   if(particle == theProton) { 
                                                   >> 220     isProton = true; 
                                                   >> 221     fSAIDHighEnergyLimit = 2*GeV;
                                                   >> 222     fHighEnergy = 2*GeV;
                                                   >> 223   }
                                                   >> 224 
                                                   >> 225   G4ParticleDefinition* part = const_cast<G4ParticleDefinition*>(particle);
198   G4ThreeVector mom(0.0,0.0,1.0);                 226   G4ThreeVector mom(0.0,0.0,1.0);
199   G4DynamicParticle dp(theProton, mom, fGlaube << 227   G4DynamicParticle dp(part, mom, fGlauberEnergy);
200                                                   228 
201   G4NistManager* nist = G4NistManager::Instanc    229   G4NistManager* nist = G4NistManager::Instance();
                                                   >> 230   G4int A;
                                                   >> 231 
202   G4double csup, csdn;                            232   G4double csup, csdn;
203                                                   233 
204   for (G4int iz=2; iz<93; ++iz) {              << 234   if(verboseLevel > 0) {
                                                   >> 235     G4cout << "### G4BGGNucleonInelasticXS::Initialise for "
                                                   >> 236      << particle->GetParticleName() << G4endl;
                                                   >> 237   }
                                                   >> 238   for(G4int iz=2; iz<93; iz++) {
205                                                   239 
206     G4int A = G4lrint(nist->GetAtomicMassAmu(i << 240     A = G4lrint(nist->GetAtomicMassAmu(iz));
207     theA[iz] = A;                                 241     theA[iz] = A;
208                                                   242 
209     csup = fGlauber->GetInelasticGlauberGribov    243     csup = fGlauber->GetInelasticGlauberGribov(&dp, iz, A);
210     csdn = fNucleon->GetElementCrossSection(&d    244     csdn = fNucleon->GetElementCrossSection(&dp, iz);
211     theGlauberFacP[iz] = csdn/csup;            << 
212   }                                            << 
213                                                << 
214   dp.SetDefinition(G4Neutron::Neutron());      << 
215   for (G4int iz=2; iz<93; ++iz) {              << 
216     csup = fGlauber->GetInelasticGlauberGribov << 
217     csdn = fNucleon->GetElementCrossSection(&d << 
218     theGlauberFacN[iz] = csdn/csup;            << 
219                                                   245 
220     if(verboseLevel > 1) {                     << 246     theGlauberFac[iz] = csdn/csup;
221       G4cout << "G4BGGNucleonInelasticXS::Init << 247     if(verboseLevel > 0) {
222        << " GFactorP= " << theGlauberFacP[iz]  << 248       G4cout << "Z= " << iz <<  "  A= " << A 
223        << " GFactorN= " << theGlauberFacN[iz]  << 249        << " GlauberFactor= " << theGlauberFac[iz] << G4endl; 
224     }                                             250     }
225   }                                               251   }
                                                   >> 252   //const G4Material* mat = 0;
226                                                   253 
227   theCoulombFacP[1] = theCoulombFacN[1] = 1.0; << 254   dp.SetKineticEnergy(fSAIDHighEnergyLimit);
228   dp.SetDefinition(theProton);                 << 255   fHadron->GetHadronNucleonXscNS(&dp, theProton);
                                                   >> 256   theCoulombFac[0] = fSAIDHighEnergyLimit*
                                                   >> 257     (fSAID->GetInelasticIsotopeCrossSection(particle,fSAIDHighEnergyLimit,1,1)
                                                   >> 258      /fHadron->GetInelasticHadronNucleonXsc() - 1);
                                                   >> 259   
                                                   >> 260   //G4cout << "Z=1 E(GeV)= " << fSAIDHighEnergyLimit/GeV
                                                   >> 261   //   << "  xsNS(b)= " << fHadron->GetInelasticHadronNucleonXsc()/barn;  
                                                   >> 262   fHadron->GetHadronNucleonXscPDG(&dp, theProton);
                                                   >> 263   //G4cout << "  xsPDG(b)= " << fHadron->GetInelasticHadronNucleonXsc()/barn;
                                                   >> 264   //G4cout << "  xsSAID(b)= " << fSAID->GetInelasticIsotopeCrossSection(particle,fSAIDHighEnergyLimit,1,1)/barn << G4endl;
                                                   >> 265 
                                                   >> 266   dp.SetKineticEnergy(fHighEnergy);
                                                   >> 267   fHadron->GetHadronNucleonXscPDG(&dp, theProton);
                                                   >> 268   G4double x = fHadron->GetInelasticHadronNucleonXsc();
                                                   >> 269 
                                                   >> 270   //G4cout << "Z=1 E(GeV)= " << fHighEnergy/GeV
                                                   >> 271   //   << "  xsPDG(b)= " << fHadron->GetInelasticHadronNucleonXsc()/barn;  
                                                   >> 272 
                                                   >> 273   fHadron->GetHadronNucleonXscNS(&dp, theProton);
                                                   >> 274   theCoulombFac[1] = fHighEnergy*((theCoulombFac[0]/fHighEnergy + 1)
                                                   >> 275           *fHadron->GetInelasticHadronNucleonXsc()/x - 1);
                                                   >> 276 
                                                   >> 277   fHadron->GetHadronNucleonXscNS(&dp, theProton);
                                                   >> 278   //G4cout << "  xsNS(b)= " << fHadron->GetInelasticHadronNucleonXsc()/barn << G4endl;
                                                   >> 279 
                                                   >> 280   if(verboseLevel > 0) {
                                                   >> 281     G4cout << "Z=1   A=1" << " CoulombFactor[0]= " << theCoulombFac[0]
                                                   >> 282      << " CoulombFactor[1]= " << theCoulombFac[1] << G4endl; 
                                                   >> 283   }
                                                   >> 284   theCoulombFac[2] = 1.0;
                                                   >> 285      
229   dp.SetKineticEnergy(fLowEnergy);                286   dp.SetKineticEnergy(fLowEnergy);
230   for (G4int iz=2; iz<93; ++iz) {              << 287   for(G4int iz=3; iz<93; iz++) {
231     theCoulombFacP[iz] = fNucleon->GetElementC << 288     theCoulombFac[iz] = 
232       /CoulombFactor(fLowEnergy, iz);          << 289       fNucleon->GetElementCrossSection(&dp, iz)/CoulombFactor(fLowEnergy, iz);
233   }                                            << 290 
234   dp.SetDefinition(G4Neutron::Neutron());      << 291     if(verboseLevel > 0) {
235   for (G4int iz=2; iz<93; ++iz) {              << 292       G4cout << "Z= " << iz <<  "  A= " << theA[iz] 
236     theCoulombFacN[iz] = fNucleon->GetElementC << 293        << " CoulombFactor= " << theCoulombFac[iz] << G4endl; 
237       /CoulombFactor(fLowEnergy, iz);          << 
238                                                << 
239     if (verboseLevel > 1) {                    << 
240       G4cout << "G4BGGNucleonInelasticXS::Init << 
241        << " CFactorP= " << theCoulombFacP[iz]  << 
242        << " CFactorN= " << theCoulombFacN[iz]  << 
243     }                                             294     }
244   }                                               295   }
245 }                                                 296 }
246                                                   297 
247 //....oooOO0OOooo........oooOO0OOooo........oo    298 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
248                                                   299 
249 G4double G4BGGNucleonInelasticXS::CoulombFacto    300 G4double G4BGGNucleonInelasticXS::CoulombFactor(G4double kinEnergy, G4int Z)
250 {                                                 301 {
251   G4double res = 0.0;                          << 302   G4double res= 0.0;
252                                                << 
253   if(kinEnergy <= 0.0) { return res; }            303   if(kinEnergy <= 0.0) { return res; }
254                                                << 304   else if (Z <= 1) { return kinEnergy*kinEnergy; }
255   G4double elog = G4Log(kinEnergy/GeV)/llog10; << 305   
                                                   >> 306   G4double elog = std::log10(kinEnergy/GeV);
256   G4double aa = theA[Z];                          307   G4double aa = theA[Z];
257                                                << 
258   if(isProton) {                               << 
259                                                   308 
260     res = G4NuclearRadii::CoulombFactor(Z, aa, << 309   // from G4ProtonInelasticCrossSection
                                                   >> 310   if(isProton) {
                                                   >> 311 
                                                   >> 312     G4double ff1 = 0.70 - 0.002*aa;           // slope of the drop at medium energies.
                                                   >> 313     G4double ff2 = 1.00 + 1/aa;               // start of the slope.
                                                   >> 314     G4double ff3 = 0.8  + 18/aa - 0.002*aa;   // stephight
                                                   >> 315     res = 1.0 + ff3*(1.0 - (1.0/(1+std::exp(-8*ff1*(elog + 1.37*ff2)))));
                                                   >> 316 
                                                   >> 317     ff1 = 1.   - 1./aa - 0.001*aa; // slope of the rise
                                                   >> 318     ff2 = 1.17 - 2.7/aa-0.0014*aa; // start of the rise
                                                   >> 319     res /= (1 + std::exp(-8.*ff1*(elog + 2*ff2)));
261                                                   320 
262     // from G4ProtonInelasticCrossSection      << 
263     if(res > 0.0) {                            << 
264       G4double ff1 = 5.6  - 0.016*aa; // slope << 
265       G4double ff2 = 1.37 + 1.37/aa;  // start << 
266       G4double ff3 = 0.8  + 18./aa - 0.002*aa; << 
267       res *= (1.0 + ff3*(1.0 - (1.0/(1+G4Exp(- << 
268       ff1 = 8.   - 8./aa  - 0.008*aa; // slope << 
269       ff2 = 2.34 - 5.4/aa - 0.0028*aa; // star << 
270       res /= (1.0 + G4Exp(-ff1*(elog + ff2))); << 
271     }                                          << 
272   } else {                                        321   } else {
                                                   >> 322 
273     // from G4NeutronInelasticCrossSection        323     // from G4NeutronInelasticCrossSection
274     G4double p3 = 0.6 + 13./aa - 0.0005*aa;       324     G4double p3 = 0.6 + 13./aa - 0.0005*aa;
275     G4double p4 = 7.2449 - 0.018242*aa;           325     G4double p4 = 7.2449 - 0.018242*aa;
276     G4double p5 = 1.36 + 1.8/aa + 0.0005*aa;      326     G4double p5 = 1.36 + 1.8/aa + 0.0005*aa;
277     G4double p6 = 1. + 200./aa + 0.02*aa;         327     G4double p6 = 1. + 200./aa + 0.02*aa;
278     G4double p7 = 3.0 - (aa-70.)*(aa-200.)/110    328     G4double p7 = 3.0 - (aa-70.)*(aa-200.)/11000.;
279                                                   329 
280     G4double firstexp  = G4Exp(-p4*(elog + p5) << 330     G4double firstexp  = std::exp(-p4*(elog + p5));
281     G4double secondexp = G4Exp(-p6*(elog + p7) << 331     G4double secondexp = std::exp(-p6*(elog + p7));
                                                   >> 332 
                                                   >> 333     res = (1.+p3*firstexp/(1. + firstexp))/(1. + secondexp);
282                                                   334 
283     res = (1. + p3*firstexp/(1. + firstexp))/( << 
284   }                                               335   }
285   return res;                                     336   return res;  
286 }                                                 337 }
287                                                   338 
288 //....oooOO0OOooo........oooOO0OOooo........oo    339 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
289                                                   340 
290 void G4BGGNucleonInelasticXS::CrossSectionDesc    341 void G4BGGNucleonInelasticXS::CrossSectionDescription(std::ostream& outFile) const
291 {                                                 342 {
292   outFile << "The Barashenkov-Glauber-Gribov c    343   outFile << "The Barashenkov-Glauber-Gribov cross section calculates inelastic\n"
293           << "scattering of protons and neutro    344           << "scattering of protons and neutrons from nuclei using the\n"
294           << "Barashenkov parameterization bel    345           << "Barashenkov parameterization below 91 GeV and the Glauber-Gribov\n"
295           << "parameterization above 91 GeV.      346           << "parameterization above 91 GeV.  It uses the G4HadronNucleonXsc\n"
296           << "cross section component for hydr    347           << "cross section component for hydrogen targets, and the\n"
297           << "G4ComponentGGHadronNucleusXsc co << 348           << "G4GlauberGribovCrossSection component for other targets.\n";
298 }                                                 349 }
299                                                   350 
300 //....oooOO0OOooo........oooOO0OOooo........oo    351 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
301                                                   352