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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 10.4.p1)


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                                                   >>  26 // $Id: G4BGGNucleonInelasticXS.cc 93682 2015-10-28 10:09:49Z gcosmo $
                                                   >>  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 "G4ComponentGGHadronNucleusXsc.hh"
 45 #include "G4NucleonNuclearCrossSection.hh"         47 #include "G4NucleonNuclearCrossSection.hh"
 46 #include "G4HadronNucleonXsc.hh"                   48 #include "G4HadronNucleonXsc.hh"
 47 #include "G4ComponentSAIDTotalXS.hh"               49 #include "G4ComponentSAIDTotalXS.hh"
 48 #include "G4Proton.hh"                             50 #include "G4Proton.hh"
 49 #include "G4Neutron.hh"                            51 #include "G4Neutron.hh"
 50 #include "G4NistManager.hh"                        52 #include "G4NistManager.hh"
 51 #include "G4Material.hh"                           53 #include "G4Material.hh"
 52 #include "G4Element.hh"                            54 #include "G4Element.hh"
 53 #include "G4Isotope.hh"                            55 #include "G4Isotope.hh"
 54 #include "G4Log.hh"                                56 #include "G4Log.hh"
 55 #include "G4Exp.hh"                                57 #include "G4Exp.hh"
 56 #include "G4NuclearRadii.hh"                   << 
 57                                                    58 
 58 //....oooOO0OOooo........oooOO0OOooo........oo <<  59 #include "G4CrossSectionDataSetRegistry.hh"
 59                                                    60 
 60 namespace                                      <<  61 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 61 {                                              << 
 62   const G4double llog10 = G4Log(10.);          << 
 63 }                                              << 
 64                                                    62 
 65 G4double G4BGGNucleonInelasticXS::theGlauberFa <<  63 const G4double llog10 = G4Log(10.);
 66 G4double G4BGGNucleonInelasticXS::theCoulombFa << 
 67 G4double G4BGGNucleonInelasticXS::theGlauberFa << 
 68 G4double G4BGGNucleonInelasticXS::theCoulombFa << 
 69 G4int G4BGGNucleonInelasticXS::theA[93] = {0}; << 
 70                                                    64 
 71 G4BGGNucleonInelasticXS::G4BGGNucleonInelastic     65 G4BGGNucleonInelasticXS::G4BGGNucleonInelasticXS(const G4ParticleDefinition* p)
 72  : G4VCrossSectionDataSet("BarashenkovGlauberG <<  66  : G4VCrossSectionDataSet("Barashenkov-Glauber")
 73 {                                                  67 {
 74   verboseLevel = 0;                                68   verboseLevel = 0;
 75   fGlauberEnergy = 91.*CLHEP::GeV;             <<  69   fGlauberEnergy = 91.*GeV;
 76   fLowEnergy = 14.*CLHEP::MeV;                 <<  70   fLowEnergy = 14.*MeV;
 77                                                <<  71   fHighEnergy = 5.*GeV;
 78   fNucleon = new G4NucleonNuclearCrossSection( <<  72   fSAIDHighEnergyLimit = 1.3*GeV;
 79   fGlauber = new G4ComponentGGHadronNucleusXsc <<  73   fLowestXSection = millibarn;
 80   fHadron  = new G4HadronNucleonXsc();         <<  74   for (G4int i = 0; i < 93; ++i) {
                                                   >>  75     theGlauberFac[i] = 0.0;
                                                   >>  76     theCoulombFac[i] = 0.0;
                                                   >>  77     theA[i] = 1;
                                                   >>  78   }
                                                   >>  79   fNucleon = 0;
                                                   >>  80   fGlauber = 0;
                                                   >>  81   fHadron  = 0;
                                                   >>  82   fSAID    = 0;
 81                                                    83 
                                                   >>  84   particle = p;
 82   theProton= G4Proton::Proton();                   85   theProton= G4Proton::Proton();
 83   isProton = (theProton == p);                 <<  86   isProton = false;
 84   SetForAllAtomsAndEnergies(true);             <<  87   isInitialized = false;
 85                                                << 
 86   if (0 == theA[0]) { Initialise(); }          << 
 87 }                                                  88 }
 88                                                    89 
 89 //....oooOO0OOooo........oooOO0OOooo........oo     90 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 90                                                    91 
 91 G4BGGNucleonInelasticXS::~G4BGGNucleonInelasti     92 G4BGGNucleonInelasticXS::~G4BGGNucleonInelasticXS()
 92 {                                                  93 {
                                                   >>  94   delete fSAID;
 93   delete fHadron;                                  95   delete fHadron;
                                                   >>  96   // The cross section registry will delete fNucleon
                                                   >>  97   delete fGlauber;
 94 }                                                  98 }
 95                                                    99 
 96 //....oooOO0OOooo........oooOO0OOooo........oo    100 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 97                                                   101 
 98 G4bool G4BGGNucleonInelasticXS::IsElementAppli    102 G4bool G4BGGNucleonInelasticXS::IsElementApplicable(const G4DynamicParticle*, 
 99                                                << 103                 G4int, const G4Material*)
100 {                                                 104 {
101   return true;                                    105   return true;
102 }                                                 106 }
103                                                   107 
104 //....oooOO0OOooo........oooOO0OOooo........oo    108 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
105                                                   109 
106 G4bool G4BGGNucleonInelasticXS::IsIsoApplicabl    110 G4bool G4BGGNucleonInelasticXS::IsIsoApplicable(const G4DynamicParticle*, 
107                                                << 111             G4int Z, G4int,  
108                                                << 112             const G4Element*,
109                                                << 113             const G4Material*)
110 {                                                 114 {
111   return (1 == Z);                                115   return (1 == Z);
112 }                                                 116 }
113                                                   117 
114 //....oooOO0OOooo........oooOO0OOooo........oo    118 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
115                                                   119 
116 G4double                                          120 G4double
117 G4BGGNucleonInelasticXS::GetElementCrossSectio    121 G4BGGNucleonInelasticXS::GetElementCrossSection(const G4DynamicParticle* dp,
118                                                << 122             G4int ZZ, const G4Material*)
119 {                                                 123 {
                                                   >> 124   // this method should be called only for Z > 1
                                                   >> 125 
120   G4double cross = 0.0;                           126   G4double cross = 0.0;
121   G4double ekin = dp->GetKineticEnergy();         127   G4double ekin = dp->GetKineticEnergy();
122   G4int Z = std::min(ZZ, 92);                  << 128   G4int Z = ZZ;
123   if (1 == Z) {                                << 129   if(1 == Z) {
124     cross = 1.0115*GetIsoCrossSection(dp,1,1);    130     cross = 1.0115*GetIsoCrossSection(dp,1,1);
                                                   >> 131   } else if(2 == Z) {
                                                   >> 132     if(ekin > fGlauberEnergy) {
                                                   >> 133       cross = theGlauberFac[Z]*fGlauber->GetInelasticGlauberGribov(dp, Z, theA[Z]);
                                                   >> 134     } else {
                                                   >> 135       cross = fNucleon->GetElementCrossSection(dp, Z);
                                                   >> 136     }
                                                   >> 137 
125   } else {                                        138   } else {
126     if (ekin <= fLowEnergy) {                  << 139     if(Z > 92) { Z = 92; }
127       cross = CoulombFactor(ekin, Z);          << 140 
128       cross *= (isProton) ? theCoulombFacP[Z]  << 141     if(ekin <= fLowEnergy) {
129     } else if (ekin > fGlauberEnergy) {        << 142       cross = theCoulombFac[Z]*CoulombFactor(ekin, Z);
130       cross = fGlauber->GetInelasticGlauberGri << 143     } else if(ekin > fGlauberEnergy) {
131       cross *= (isProton) ? theGlauberFacP[Z]  << 144       cross = theGlauberFac[Z]*fGlauber->GetInelasticGlauberGribov(dp, Z, theA[Z]);
132     } else {                                      145     } else {
133       cross = fNucleon->GetElementCrossSection    146       cross = fNucleon->GetElementCrossSection(dp, Z);
134     }                                             147     }
135   }                                               148   }
136                                                   149 
137 #ifdef G4VERBOSE                               << 150   if(verboseLevel > 1) {
138   if (verboseLevel > 1) {                      << 
139     G4cout << "G4BGGNucleonInelasticXS::GetCro    151     G4cout << "G4BGGNucleonInelasticXS::GetCrossSection  for "
140            << dp->GetDefinition()->GetParticle << 152      << dp->GetDefinition()->GetParticleName()
141            << "  Ekin(GeV)= " << dp->GetKineti << 153      << "  Ekin(GeV)= " << dp->GetKineticEnergy()/CLHEP::GeV
142            << " in nucleus Z= " << Z << "  A=  << 154      << " in nucleus Z= " << Z << "  A= " << theA[Z]
143            << " XS(b)= " << cross/barn         << 155      << " XS(b)= " << cross/barn 
144            << G4endl;                          << 156      << G4endl;
145   }                                               157   }
146 #endif                                         << 158   //AR-18Dec2013  if(cross <= fLowestXSection) { cross = 0.0; }
147   return cross;                                   159   return cross;
148 }                                                 160 }
149                                                   161 
150 //....oooOO0OOooo........oooOO0OOooo........oo    162 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
151                                                   163 
152 G4double                                          164 G4double
153 G4BGGNucleonInelasticXS::GetIsoCrossSection(co    165 G4BGGNucleonInelasticXS::GetIsoCrossSection(const G4DynamicParticle* dp,
154                                        G4int,  << 166               G4int Z, G4int A,
155                                        const G << 167               const G4Isotope*,
156                                        const G << 168               const G4Element*,
157                                        const G << 169               const G4Material*)
158 {                                                 170 {
159   // this method should be called only for Z =    171   // this method should be called only for Z = 1
160   fHadron->HadronNucleonXscNS(dp->GetDefinitio << 
161                            dp->GetKineticEnerg << 
162   G4double cross = A*fHadron->GetInelasticHadr << 
163                                                   172 
164 #ifdef G4VERBOSE                               << 173   G4double cross = 0.0;
                                                   >> 174   G4double ekin = dp->GetKineticEnergy();
                                                   >> 175 
                                                   >> 176   if(ekin <= fSAIDHighEnergyLimit) {
                                                   >> 177     cross = fSAID->GetInelasticIsotopeCrossSection(particle, ekin, 1, 1);
                                                   >> 178   } else if(ekin < fHighEnergy) {
                                                   >> 179     fHadron->GetHadronNucleonXscNS(dp, theProton);
                                                   >> 180     cross = (theCoulombFac[0]/ekin + 1)*fHadron->GetInelasticHadronNucleonXsc();
                                                   >> 181   } else {
                                                   >> 182     fHadron->GetHadronNucleonXscPDG(dp, theProton);
                                                   >> 183     cross = (theCoulombFac[1]/ekin + 1)*fHadron->GetInelasticHadronNucleonXsc();
                                                   >> 184   } 
                                                   >> 185   cross *= A; 
                                                   >> 186 
165   if(verboseLevel > 1) {                          187   if(verboseLevel > 1) {
166     G4cout << "G4BGGNucleonInelasticXS::GetIso << 188     G4cout << "G4BGGNucleonInelasticXS::GetCrossSection  for "
167            << dp->GetDefinition()->GetParticle << 189      << dp->GetDefinition()->GetParticleName()
168            << "  Ekin(GeV)= " << dp->GetKineti << 190      << "  Ekin(GeV)= " << dp->GetKineticEnergy()/CLHEP::GeV
169            << " in nucleus Z=1  A=" << A       << 191      << " in nucleus Z= " << Z << "  A= " << A
170            << " XS(b)= " << cross/barn         << 192      << " XS(b)= " << cross/barn 
171            << G4endl;                          << 193      << G4endl;
172   }                                               194   }
173 #endif                                         << 195   //AR-18Dec2013  if(cross <= fLowestXSection) { cross = 0.0; }
174   return cross;                                   196   return cross;
175 }                                                 197 }
176                                                   198 
177 //....oooOO0OOooo........oooOO0OOooo........oo    199 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
178                                                   200 
179 void G4BGGNucleonInelasticXS::BuildPhysicsTabl    201 void G4BGGNucleonInelasticXS::BuildPhysicsTable(const G4ParticleDefinition& p)
180 {                                                 202 {
181   if(&p == theProton || &p == G4Neutron::Neutr    203   if(&p == theProton || &p == G4Neutron::Neutron()) {
182     isProton = (theProton == &p);              << 204     particle = &p;
183   } else {                                        205   } else {
184     G4ExceptionDescription ed;                 << 206     G4cout << "### G4BGGNucleonInelasticXS WARNING: is not applicable to " 
185     ed << "This BGG cross section is applicabl << 207      << p.GetParticleName()
186        << p.GetParticleName() << G4endl;       << 208      << G4endl;
187     G4Exception("G4BGGNucleonInelasticXS::Buil << 209     throw G4HadronicException(__FILE__, __LINE__,
188               FatalException, ed);             << 210     "G4BGGNucleonElasticXS::BuildPhysicsTable is used for wrong particle");
189     return;                                       211     return;
190   }                                               212   }
191 }                                              << 
192                                                   213 
193 //....oooOO0OOooo........oooOO0OOooo........oo << 214   if(isInitialized) { return; }
                                                   >> 215   isInitialized = true;
                                                   >> 216 
                                                   >> 217   fNucleon = (G4NucleonNuclearCrossSection*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4NucleonNuclearCrossSection::Default_Name());
                                                   >> 218   fGlauber = new G4ComponentGGHadronNucleusXsc();
                                                   >> 219   fHadron  = new G4HadronNucleonXsc();
                                                   >> 220   fSAID    = new G4ComponentSAIDTotalXS();
                                                   >> 221 
                                                   >> 222   fNucleon->BuildPhysicsTable(*particle);
                                                   >> 223   fGlauber->BuildPhysicsTable(*particle);
                                                   >> 224 
                                                   >> 225   if(particle == theProton) { 
                                                   >> 226     isProton = true; 
                                                   >> 227     fSAIDHighEnergyLimit = 2*GeV;
                                                   >> 228     fHighEnergy = 2*GeV;
                                                   >> 229   }
194                                                   230 
195 void G4BGGNucleonInelasticXS::Initialise()     << 
196 {                                              << 
197   theA[0] = theA[1] = 1;                       << 
198   G4ThreeVector mom(0.0,0.0,1.0);                 231   G4ThreeVector mom(0.0,0.0,1.0);
199   G4DynamicParticle dp(theProton, mom, fGlaube << 232   G4DynamicParticle dp(particle, mom, fGlauberEnergy);
200                                                   233 
201   G4NistManager* nist = G4NistManager::Instanc    234   G4NistManager* nist = G4NistManager::Instance();
                                                   >> 235   G4int A;
                                                   >> 236 
202   G4double csup, csdn;                            237   G4double csup, csdn;
203                                                   238 
204   for (G4int iz=2; iz<93; ++iz) {              << 239   if(verboseLevel > 0) {
                                                   >> 240     G4cout << "### G4BGGNucleonInelasticXS::Initialise for "
                                                   >> 241      << particle->GetParticleName() << G4endl;
                                                   >> 242   }
                                                   >> 243   for(G4int iz=2; iz<93; iz++) {
205                                                   244 
206     G4int A = G4lrint(nist->GetAtomicMassAmu(i << 245     A = G4lrint(nist->GetAtomicMassAmu(iz));
207     theA[iz] = A;                                 246     theA[iz] = A;
208                                                   247 
209     csup = fGlauber->GetInelasticGlauberGribov    248     csup = fGlauber->GetInelasticGlauberGribov(&dp, iz, A);
210     csdn = fNucleon->GetElementCrossSection(&d    249     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                                                   250 
220     if(verboseLevel > 1) {                     << 251     theGlauberFac[iz] = csdn/csup;
221       G4cout << "G4BGGNucleonInelasticXS::Init << 252     if(verboseLevel > 0) {
222        << " GFactorP= " << theGlauberFacP[iz]  << 253       G4cout << "Z= " << iz <<  "  A= " << A 
223        << " GFactorN= " << theGlauberFacN[iz]  << 254        << " GlauberFactor= " << theGlauberFac[iz] << G4endl; 
224     }                                             255     }
225   }                                               256   }
                                                   >> 257   //const G4Material* mat = 0;
226                                                   258 
227   theCoulombFacP[1] = theCoulombFacN[1] = 1.0; << 259   dp.SetKineticEnergy(fSAIDHighEnergyLimit);
228   dp.SetDefinition(theProton);                 << 260   fHadron->GetHadronNucleonXscNS(&dp, theProton);
229   dp.SetKineticEnergy(fLowEnergy);             << 261   theCoulombFac[0] = fSAIDHighEnergyLimit*
230   for (G4int iz=2; iz<93; ++iz) {              << 262     (fSAID->GetInelasticIsotopeCrossSection(particle,fSAIDHighEnergyLimit,1,1)
231     theCoulombFacP[iz] = fNucleon->GetElementC << 263      /fHadron->GetInelasticHadronNucleonXsc() - 1);
232       /CoulombFactor(fLowEnergy, iz);          << 264   
                                                   >> 265   //G4cout << "Z=1 E(GeV)= " << fSAIDHighEnergyLimit/GeV
                                                   >> 266   //   << "  xsNS(b)= " << fHadron->GetInelasticHadronNucleonXsc()/barn;  
                                                   >> 267   fHadron->GetHadronNucleonXscPDG(&dp, theProton);
                                                   >> 268   //G4cout << "  xsPDG(b)= " << fHadron->GetInelasticHadronNucleonXsc()/barn;
                                                   >> 269   //G4cout << "  xsSAID(b)= " << fSAID->GetInelasticIsotopeCrossSection(particle,fSAIDHighEnergyLimit,1,1)/barn << G4endl;
                                                   >> 270 
                                                   >> 271   dp.SetKineticEnergy(fHighEnergy);
                                                   >> 272   fHadron->GetHadronNucleonXscPDG(&dp, theProton);
                                                   >> 273   G4double x = fHadron->GetInelasticHadronNucleonXsc();
                                                   >> 274 
                                                   >> 275   //G4cout << "Z=1 E(GeV)= " << fHighEnergy/GeV
                                                   >> 276   //   << "  xsPDG(b)= " << fHadron->GetInelasticHadronNucleonXsc()/barn;  
                                                   >> 277 
                                                   >> 278   fHadron->GetHadronNucleonXscNS(&dp, theProton);
                                                   >> 279   theCoulombFac[1] = fHighEnergy*((theCoulombFac[0]/fHighEnergy + 1)
                                                   >> 280           *fHadron->GetInelasticHadronNucleonXsc()/x - 1);
                                                   >> 281 
                                                   >> 282   fHadron->GetHadronNucleonXscNS(&dp, theProton);
                                                   >> 283   //G4cout <<"  xsNS(b)= "<<fHadron->GetInelasticHadronNucleonXsc()/barn<<G4endl;
                                                   >> 284 
                                                   >> 285   if(verboseLevel > 0) {
                                                   >> 286     G4cout << "Z=1   A=1" << " CoulombFactor[0]= " << theCoulombFac[0]
                                                   >> 287      << " CoulombFactor[1]= " << theCoulombFac[1] << G4endl; 
233   }                                               288   }
234   dp.SetDefinition(G4Neutron::Neutron());      << 289   theCoulombFac[2] = 1.0;
235   for (G4int iz=2; iz<93; ++iz) {              << 290      
236     theCoulombFacN[iz] = fNucleon->GetElementC << 291   dp.SetKineticEnergy(fLowEnergy);
237       /CoulombFactor(fLowEnergy, iz);          << 292   for(G4int iz=3; iz<93; iz++) {
238                                                << 293     theCoulombFac[iz] = 
239     if (verboseLevel > 1) {                    << 294       fNucleon->GetElementCrossSection(&dp, iz)/CoulombFactor(fLowEnergy, iz);
240       G4cout << "G4BGGNucleonInelasticXS::Init << 295 
241        << " CFactorP= " << theCoulombFacP[iz]  << 296     if(verboseLevel > 0) {
242        << " CFactorN= " << theCoulombFacN[iz]  << 297       G4cout << "Z= " << iz <<  "  A= " << theA[iz] 
                                                   >> 298        << " CoulombFactor= " << theCoulombFac[iz] << G4endl; 
243     }                                             299     }
244   }                                               300   }
245 }                                                 301 }
246                                                   302 
247 //....oooOO0OOooo........oooOO0OOooo........oo    303 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
248                                                   304 
249 G4double G4BGGNucleonInelasticXS::CoulombFacto    305 G4double G4BGGNucleonInelasticXS::CoulombFactor(G4double kinEnergy, G4int Z)
250 {                                                 306 {
251   G4double res = 0.0;                          << 307   G4double res= 0.0;
252                                                << 
253   if(kinEnergy <= 0.0) { return res; }            308   if(kinEnergy <= 0.0) { return res; }
254                                                << 309   else if (Z <= 1) { return kinEnergy*kinEnergy; }
                                                   >> 310   
255   G4double elog = G4Log(kinEnergy/GeV)/llog10;    311   G4double elog = G4Log(kinEnergy/GeV)/llog10;
256   G4double aa = theA[Z];                          312   G4double aa = theA[Z];
257                                                << 
258   if(isProton) {                               << 
259                                                   313 
260     res = G4NuclearRadii::CoulombFactor(Z, aa, << 314   // from G4ProtonInelasticCrossSection
                                                   >> 315   if(isProton) {
                                                   >> 316 
                                                   >> 317     G4double ff1 = 5.6  - 0.016*aa;    // slope of the drop at medium energies.
                                                   >> 318     G4double ff2 = 1.37 + 1.37/aa;     // start of the slope.
                                                   >> 319     G4double ff3 = 0.8  + 18./aa - 0.002*aa;   // stephight
                                                   >> 320     res = 1.0 + ff3*(1.0 - (1.0/(1+G4Exp(-ff1*(elog + ff2)))));
                                                   >> 321 
                                                   >> 322     ff1 = 8.   - 8./aa  - 0.008*aa; // slope of the rise
                                                   >> 323     ff2 = 2.34 - 5.4/aa - 0.0028*aa; // start of the rise
                                                   >> 324     res /= (1.0 + G4Exp(-ff1*(elog + ff2)));
261                                                   325 
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 {                                        326   } else {
                                                   >> 327 
273     // from G4NeutronInelasticCrossSection        328     // from G4NeutronInelasticCrossSection
274     G4double p3 = 0.6 + 13./aa - 0.0005*aa;       329     G4double p3 = 0.6 + 13./aa - 0.0005*aa;
275     G4double p4 = 7.2449 - 0.018242*aa;           330     G4double p4 = 7.2449 - 0.018242*aa;
276     G4double p5 = 1.36 + 1.8/aa + 0.0005*aa;      331     G4double p5 = 1.36 + 1.8/aa + 0.0005*aa;
277     G4double p6 = 1. + 200./aa + 0.02*aa;         332     G4double p6 = 1. + 200./aa + 0.02*aa;
278     G4double p7 = 3.0 - (aa-70.)*(aa-200.)/110    333     G4double p7 = 3.0 - (aa-70.)*(aa-200.)/11000.;
279                                                   334 
280     G4double firstexp  = G4Exp(-p4*(elog + p5)    335     G4double firstexp  = G4Exp(-p4*(elog + p5));
281     G4double secondexp = G4Exp(-p6*(elog + p7)    336     G4double secondexp = G4Exp(-p6*(elog + p7));
282                                                   337 
283     res = (1. + p3*firstexp/(1. + firstexp))/( << 338     res = (1.+p3*firstexp/(1. + firstexp))/(1. + secondexp);
                                                   >> 339 
284   }                                               340   }
285   return res;                                     341   return res;  
286 }                                                 342 }
287                                                   343 
288 //....oooOO0OOooo........oooOO0OOooo........oo    344 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
289                                                   345 
290 void G4BGGNucleonInelasticXS::CrossSectionDesc    346 void G4BGGNucleonInelasticXS::CrossSectionDescription(std::ostream& outFile) const
291 {                                                 347 {
292   outFile << "The Barashenkov-Glauber-Gribov c    348   outFile << "The Barashenkov-Glauber-Gribov cross section calculates inelastic\n"
293           << "scattering of protons and neutro    349           << "scattering of protons and neutrons from nuclei using the\n"
294           << "Barashenkov parameterization bel    350           << "Barashenkov parameterization below 91 GeV and the Glauber-Gribov\n"
295           << "parameterization above 91 GeV.      351           << "parameterization above 91 GeV.  It uses the G4HadronNucleonXsc\n"
296           << "cross section component for hydr    352           << "cross section component for hydrogen targets, and the\n"
297           << "G4ComponentGGHadronNucleusXsc co    353           << "G4ComponentGGHadronNucleusXsc component for other targets.\n";
298 }                                                 354 }
299                                                   355 
300 //....oooOO0OOooo........oooOO0OOooo........oo    356 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
301                                                   357