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Geant4/processes/hadronic/models/coherent_elastic/src/G4ChargeExchangeProcess.cc

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Differences between /processes/hadronic/models/coherent_elastic/src/G4ChargeExchangeProcess.cc (Version 11.3.0) and /processes/hadronic/models/coherent_elastic/src/G4ChargeExchangeProcess.cc (Version 10.0.p1)


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                                                   >>  27 // $Id: G4ChargeExchangeProcess.cc 66892 2013-01-17 10:57:59Z gunter $
 27 //                                                 28 //
 28 //                                                 29 //
 29 // Geant4 Hadron Charge Exchange Process -- so     30 // Geant4 Hadron Charge Exchange Process -- source file
 30 //                                                 31 //
 31 // Created 21 April 2006 V.Ivanchenko              32 // Created 21 April 2006 V.Ivanchenko
 32 //                                                 33 //
 33 // Modified:                                       34 // Modified:
 34 // 24-Apr-06 V.Ivanchenko add neutron scatteri     35 // 24-Apr-06 V.Ivanchenko add neutron scattering on hydrogen from CHIPS
 35 // 07-Jun-06 V.Ivanchenko fix problem of rotat     36 // 07-Jun-06 V.Ivanchenko fix problem of rotation of final state
 36 // 25-Jul-06 V.Ivanchenko add 19 MeV low energ     37 // 25-Jul-06 V.Ivanchenko add 19 MeV low energy for CHIPS
 37 // 23-Jan-07 V.Ivanchenko add cross section in     38 // 23-Jan-07 V.Ivanchenko add cross section interfaces with Z and A
 38 //                        and do not use CHIPS     39 //                        and do not use CHIPS for cross sections
 39 // 14-Sep-12 M.Kelsey -- Pass subType code to      40 // 14-Sep-12 M.Kelsey -- Pass subType code to base ctor
 40 // 06-Aug-15 A.Ribon migrating to G4Pow        << 
 41                                                    41 
 42 #include "G4ChargeExchangeProcess.hh"              42 #include "G4ChargeExchangeProcess.hh"
 43 #include "globals.hh"                              43 #include "globals.hh"
 44 #include "G4SystemOfUnits.hh"                      44 #include "G4SystemOfUnits.hh"
 45 #include "G4CrossSectionDataStore.hh"              45 #include "G4CrossSectionDataStore.hh"
 46 #include "G4CrossSectionElastic.hh"            <<  46 #include "G4HadronElasticDataSet.hh"
 47 #include "G4ComponentGGHadronNucleusXsc.hh"    << 
 48 #include "G4Element.hh"                            47 #include "G4Element.hh"
 49 #include "G4ElementVector.hh"                      48 #include "G4ElementVector.hh"
 50 #include "G4IsotopeVector.hh"                      49 #include "G4IsotopeVector.hh"
 51 #include "G4Neutron.hh"                            50 #include "G4Neutron.hh"
 52 #include "G4Proton.hh"                             51 #include "G4Proton.hh"
 53 #include "G4PhysicsLinearVector.hh"                52 #include "G4PhysicsLinearVector.hh"
 54                                                    53 
 55 #include "G4Pow.hh"                            << 
 56                                                << 
 57                                                << 
 58 G4ChargeExchangeProcess::G4ChargeExchangeProce     54 G4ChargeExchangeProcess::G4ChargeExchangeProcess(const G4String& procName)
 59   : G4HadronicProcess(procName,fChargeExchange     55   : G4HadronicProcess(procName,fChargeExchange), first(true)
 60 {                                                  56 {
 61   G4cout << "###=== The class G4ChargeExchange << 
 62   G4cout << "###=== It will be removed at the  << 
 63   thEnergy = 20.*MeV;                              57   thEnergy = 20.*MeV;
 64   pPDG = 0;                                        58   pPDG = 0;
 65   verboseLevel= 1;                                 59   verboseLevel= 1;
 66   AddDataSet( new G4CrossSectionElastic( new G <<  60   AddDataSet(new G4HadronElasticDataSet);
 67   theProton   = G4Proton::Proton();                61   theProton   = G4Proton::Proton();
 68   theNeutron  = G4Neutron::Neutron();              62   theNeutron  = G4Neutron::Neutron();
 69   theAProton  = G4AntiProton::AntiProton();        63   theAProton  = G4AntiProton::AntiProton();
 70   theANeutron = G4AntiNeutron::AntiNeutron();      64   theANeutron = G4AntiNeutron::AntiNeutron();
 71   thePiPlus   = G4PionPlus::PionPlus();            65   thePiPlus   = G4PionPlus::PionPlus();
 72   thePiMinus  = G4PionMinus::PionMinus();          66   thePiMinus  = G4PionMinus::PionMinus();
 73   thePiZero   = G4PionZero::PionZero();            67   thePiZero   = G4PionZero::PionZero();
 74   theKPlus    = G4KaonPlus::KaonPlus();            68   theKPlus    = G4KaonPlus::KaonPlus();
 75   theKMinus   = G4KaonMinus::KaonMinus();          69   theKMinus   = G4KaonMinus::KaonMinus();
 76   theK0S      = G4KaonZeroShort::KaonZeroShort     70   theK0S      = G4KaonZeroShort::KaonZeroShort();
 77   theK0L      = G4KaonZeroLong::KaonZeroLong()     71   theK0L      = G4KaonZeroLong::KaonZeroLong();
 78   theL        = G4Lambda::Lambda();                72   theL        = G4Lambda::Lambda();
 79   theAntiL    = G4AntiLambda::AntiLambda();        73   theAntiL    = G4AntiLambda::AntiLambda();
 80   theSPlus    = G4SigmaPlus::SigmaPlus();          74   theSPlus    = G4SigmaPlus::SigmaPlus();
 81   theASPlus   = G4AntiSigmaPlus::AntiSigmaPlus     75   theASPlus   = G4AntiSigmaPlus::AntiSigmaPlus();
 82   theSMinus   = G4SigmaMinus::SigmaMinus();        76   theSMinus   = G4SigmaMinus::SigmaMinus();
 83   theASMinus  = G4AntiSigmaMinus::AntiSigmaMin     77   theASMinus  = G4AntiSigmaMinus::AntiSigmaMinus();
 84   theS0       = G4SigmaZero::SigmaZero();          78   theS0       = G4SigmaZero::SigmaZero();
 85   theAS0      = G4AntiSigmaZero::AntiSigmaZero     79   theAS0      = G4AntiSigmaZero::AntiSigmaZero();
 86   theXiMinus  = G4XiMinus::XiMinus();              80   theXiMinus  = G4XiMinus::XiMinus();
 87   theXi0      = G4XiZero::XiZero();                81   theXi0      = G4XiZero::XiZero();
 88   theAXiMinus = G4AntiXiMinus::AntiXiMinus();      82   theAXiMinus = G4AntiXiMinus::AntiXiMinus();
 89   theAXi0     = G4AntiXiZero::AntiXiZero();        83   theAXi0     = G4AntiXiZero::AntiXiZero();
 90   theOmega    = G4OmegaMinus::OmegaMinus();        84   theOmega    = G4OmegaMinus::OmegaMinus();
 91   theAOmega   = G4AntiOmegaMinus::AntiOmegaMin     85   theAOmega   = G4AntiOmegaMinus::AntiOmegaMinus();
 92   theD        = G4Deuteron::Deuteron();            86   theD        = G4Deuteron::Deuteron();
 93   theT        = G4Triton::Triton();                87   theT        = G4Triton::Triton();
 94   theA        = G4Alpha::Alpha();                  88   theA        = G4Alpha::Alpha();
 95   theHe3      = G4He3::He3();                      89   theHe3      = G4He3::He3();
 96 }                                                  90 }
 97                                                    91 
 98 G4ChargeExchangeProcess::~G4ChargeExchangeProc     92 G4ChargeExchangeProcess::~G4ChargeExchangeProcess()
 99 {                                                  93 {
100   if (factors) delete factors;                 <<  94   delete factors;
101 }                                                  95 }
102                                                    96 
103 void G4ChargeExchangeProcess::                     97 void G4ChargeExchangeProcess::
104 BuildPhysicsTable(const G4ParticleDefinition&      98 BuildPhysicsTable(const G4ParticleDefinition& aParticleType)
105 {                                                  99 {
106   if(first) {                                     100   if(first) {
107     first = false;                                101     first = false;
108     theParticle = &aParticleType;                 102     theParticle = &aParticleType;
109     pPDG = theParticle->GetPDGEncoding();         103     pPDG = theParticle->GetPDGEncoding();
110                                                   104 
111     store = G4HadronicProcess::GetCrossSection    105     store = G4HadronicProcess::GetCrossSectionDataStore();
112                                                   106 
113     const size_t n = 10;                          107     const size_t n = 10;
114     if(theParticle == thePiPlus || theParticle    108     if(theParticle == thePiPlus || theParticle == thePiMinus ||
115        theParticle == theKPlus  || theParticle    109        theParticle == theKPlus  || theParticle == theKMinus ||
116        theParticle == theK0S    || theParticle    110        theParticle == theK0S    || theParticle == theK0L) {
117                                                   111 
118       G4double F[n] = {0.33,0.27,0.29,0.31,0.2    112       G4double F[n] = {0.33,0.27,0.29,0.31,0.27,0.18,0.13,0.1,0.09,0.07};
119       factors = new G4PhysicsLinearVector(0.0,    113       factors = new G4PhysicsLinearVector(0.0,2.0*GeV,n);
120       for(size_t i=0; i<n; i++) {factors->PutV    114       for(size_t i=0; i<n; i++) {factors->PutValue(i,F[i]);}
121                                                   115 
122     } else {                                      116     } else {
123                                                   117 
124       G4double F[n] = {0.50,0.45,0.40,0.35,0.3    118       G4double F[n] = {0.50,0.45,0.40,0.35,0.30,0.25,0.06,0.04,0.005,0.0};
125       factors = new G4PhysicsLinearVector(0.0,    119       factors = new G4PhysicsLinearVector(0.0,4.0*GeV,n);
126       for(size_t i=0; i<n; i++) {factors->PutV    120       for(size_t i=0; i<n; i++) {factors->PutValue(i,F[i]);}
127     }                                             121     }
                                                   >> 122     //factors->SetSpline(true);
128                                                   123 
129     if(verboseLevel>1)                            124     if(verboseLevel>1)
130       G4cout << "G4ChargeExchangeProcess for "    125       G4cout << "G4ChargeExchangeProcess for "
131        << theParticle->GetParticleName()          126        << theParticle->GetParticleName()
132        << G4endl;                                 127        << G4endl;
133   }                                               128   }
134   G4HadronicProcess::BuildPhysicsTable(aPartic    129   G4HadronicProcess::BuildPhysicsTable(aParticleType);
135 }                                                 130 }
136                                                   131 
137 G4double G4ChargeExchangeProcess::GetElementCr    132 G4double G4ChargeExchangeProcess::GetElementCrossSection(
138                                   const G4Dyna    133                                   const G4DynamicParticle* dp,
139           const G4Element* elm,                   134           const G4Element* elm,
140           const G4Material* mat)                  135           const G4Material* mat)
141 {                                                 136 {
142   // gives the microscopic cross section in GE    137   // gives the microscopic cross section in GEANT4 internal units
143   G4double Z = elm->GetZ();                       138   G4double Z = elm->GetZ();
144   G4int iz = G4int(Z);                            139   G4int iz = G4int(Z);
145   G4double x = 0.0;                               140   G4double x = 0.0;
146                                                   141 
147   // The process is effective only above the t    142   // The process is effective only above the threshold
148   if(iz == 1 || dp->GetKineticEnergy() < thEne    143   if(iz == 1 || dp->GetKineticEnergy() < thEnergy) return x;
149                                                   144 
150   if(verboseLevel>1)                              145   if(verboseLevel>1)
151     G4cout << "G4ChargeExchangeProcess compute    146     G4cout << "G4ChargeExchangeProcess compute GHAD CS for element "
152      << elm->GetName()                            147      << elm->GetName()
153      << G4endl;                                   148      << G4endl;
154   x = store->GetCrossSection(dp, elm, mat);       149   x = store->GetCrossSection(dp, elm, mat);
155                                                   150 
156   if(verboseLevel>1)                              151   if(verboseLevel>1)
157     G4cout << "G4ChargeExchangeProcess cross(m    152     G4cout << "G4ChargeExchangeProcess cross(mb)= " << x/millibarn
158            << "  E(MeV)= " << dp->GetKineticEn    153            << "  E(MeV)= " << dp->GetKineticEnergy()
159      << "  " << theParticle->GetParticleName()    154      << "  " << theParticle->GetParticleName()
160            << "  in Z= " << iz                    155            << "  in Z= " << iz
161      << G4endl;                                   156      << G4endl;
162   G4bool b;                                       157   G4bool b;
163   G4double A = elm->GetN();                       158   G4double A = elm->GetN();
164   G4double ptot = dp->GetTotalMomentum();         159   G4double ptot = dp->GetTotalMomentum();
165   x *= factors->GetValue(ptot, b)/G4Pow::GetIn << 160   x *= factors->GetValue(ptot, b)/std::pow(A, 0.42);
166   if(theParticle == thePiPlus || theParticle =    161   if(theParticle == thePiPlus || theParticle == theProton ||
167      theParticle == theKPlus  || theParticle =    162      theParticle == theKPlus  || theParticle == theANeutron)
168     { x *= (1.0 - Z/A); }                         163     { x *= (1.0 - Z/A); }
169                                                   164 
170   else if(theParticle == thePiMinus || thePart    165   else if(theParticle == thePiMinus || theParticle == theNeutron ||
171           theParticle == theKMinus  || thePart    166           theParticle == theKMinus  || theParticle == theAProton)
172     { x *= Z/A; }                                 167     { x *= Z/A; }
173                                                   168 
174   if(theParticle->GetPDGMass() < GeV) {           169   if(theParticle->GetPDGMass() < GeV) {
175     if(ptot > 2.*GeV) x *= 4.0*GeV*GeV/(ptot*p    170     if(ptot > 2.*GeV) x *= 4.0*GeV*GeV/(ptot*ptot);
176   }                                               171   }
177                                                   172 
178   if(verboseLevel>1)                              173   if(verboseLevel>1) 
179     G4cout << "Corrected cross(mb)= " << x/mil    174     G4cout << "Corrected cross(mb)= " << x/millibarn << G4endl;
180                                                   175 
181   return x;                                       176   return x;
182 }                                                 177 }
183                                                   178 
184 G4bool G4ChargeExchangeProcess::                  179 G4bool G4ChargeExchangeProcess::
185 IsApplicable(const G4ParticleDefinition& aPart    180 IsApplicable(const G4ParticleDefinition& aParticleType)
186 {                                                 181 {
187   const G4ParticleDefinition* p = &aParticleTy    182   const G4ParticleDefinition* p = &aParticleType;
188   return (p == thePiPlus || p == thePiMinus ||    183   return (p == thePiPlus || p == thePiMinus ||
189           p == theProton || p == theNeutron ||    184           p == theProton || p == theNeutron ||
190           p == theAProton|| p == theANeutron||    185           p == theAProton|| p == theANeutron||
191     p == theKPlus  || p == theKMinus  ||          186     p == theKPlus  || p == theKMinus  ||
192     p == theK0S    || p == theK0L     ||          187     p == theK0S    || p == theK0L     ||
193     p == theL);                                   188     p == theL);
194 }                                                 189 }
195                                                   190 
196 void G4ChargeExchangeProcess::                    191 void G4ChargeExchangeProcess::
197 DumpPhysicsTable(const G4ParticleDefinition& a    192 DumpPhysicsTable(const G4ParticleDefinition& aParticleType)
198 {                                                 193 {
199   store->DumpPhysicsTable(aParticleType);         194   store->DumpPhysicsTable(aParticleType);
200 }                                                 195 }
201                                                   196