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Geant4/processes/electromagnetic/muons/include/G4MuPairProductionModel.hh

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Differences between /processes/electromagnetic/muons/include/G4MuPairProductionModel.hh (Version 11.3.0) and /processes/electromagnetic/muons/include/G4MuPairProductionModel.hh (Version 6.0)


  1 //                                                  1 //
  2 // *******************************************      2 // ********************************************************************
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  4 // *                                                4 // *                                                                  *
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  7 // * conditions of the Geant4 Software License <<   7 // * govern, are listed with their locations in:                      *
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  9 // * include a list of copyright holders.      << 
 10 // *                                                9 // *                                                                  *
 11 // * Neither the authors of this software syst     10 // * Neither the authors of this software system, nor their employing *
 12 // * institutes,nor the agencies providing fin     11 // * institutes,nor the agencies providing financial support for this *
 13 // * work  make  any representation or  warran     12 // * work  make  any representation or  warranty, express or implied, *
 14 // * regarding  this  software system or assum     13 // * regarding  this  software system or assume any liability for its *
 15 // * use.  Please see the license in the file  <<  14 // * use.                                                             *
 16 // * for the full disclaimer and the limitatio << 
 17 // *                                               15 // *                                                                  *
 18 // * This  code  implementation is the result  <<  16 // * This  code  implementation is the  intellectual property  of the *
 19 // * technical work of the GEANT4 collaboratio <<  17 // * GEANT4 collaboration.                                            *
 20 // * By using,  copying,  modifying or  distri <<  18 // * By copying,  distributing  or modifying the Program (or any work *
 21 // * any work based  on the software)  you  ag <<  19 // * based  on  the Program)  you indicate  your  acceptance of  this *
 22 // * use  in  resulting  scientific  publicati <<  20 // * statement, and all its terms.                                    *
 23 // * acceptance of all terms of the Geant4 Sof << 
 24 // *******************************************     21 // ********************************************************************
 25 //                                                 22 //
                                                   >>  23 // $Id: G4MuPairProductionModel.hh,v 1.10 2003/07/21 12:52:35 vnivanch Exp $
                                                   >>  24 // GEANT4 tag $Name: geant4-06-00 $
 26 //                                                 25 //
 27 // -------------------------------------------     26 // -------------------------------------------------------------------
 28 //                                                 27 //
 29 // GEANT4 Class header file                        28 // GEANT4 Class header file
 30 //                                                 29 //
 31 //                                                 30 //
 32 // File name:     G4MuPairProductionModel          31 // File name:     G4MuPairProductionModel
 33 //                                                 32 //
 34 // Author:        Vladimir Ivanchenko on base      33 // Author:        Vladimir Ivanchenko on base of Laszlo Urban code
 35 //                                                 34 //
 36 // Creation date: 18.05.2002                       35 // Creation date: 18.05.2002
 37 //                                                 36 //
 38 // Modifications:                                  37 // Modifications:
 39 //                                                 38 //
 40 // 23-12-02 Change interface in order to move      39 // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
 41 // 27-01-03 Make models region aware (V.Ivanch     40 // 27-01-03 Make models region aware (V.Ivanchenko)
 42 // 13-02-03 Add name (V.Ivanchenko)                41 // 13-02-03 Add name (V.Ivanchenko)
 43 // 10-02-04 Update parameterisation using R.Ko <<  42 //
 44 // 10-02-04 Add lowestKinEnergy (V.Ivanchenko) <<  43 
 45 // 13-02-06 Add ComputeCrossSectionPerAtom (mm << 
 46 // 12-05-06 Add parameter to SelectRandomAtom  << 
 47 // 11-10-07 Add ignoreCut flag (V.Ivanchenko)  << 
 48 // 28-02-08 Reorganized protected methods and  << 
 49 //                                                 44 //
 50 // Class Description:                              45 // Class Description:
 51 //                                                 46 //
 52 // Implementation of e+e- pair production by m     47 // Implementation of e+e- pair production by muons
 53 // A.G. Bogdanov et al., IEEE Trans. Nuc. Sci. << 
 54 // Base class for all pair production models f << 
 55 //                                                 48 //
                                                   >>  49 
 56 // -------------------------------------------     50 // -------------------------------------------------------------------
 57 //                                                 51 //
 58                                                    52 
 59 #ifndef G4MuPairProductionModel_h                  53 #ifndef G4MuPairProductionModel_h
 60 #define G4MuPairProductionModel_h 1                54 #define G4MuPairProductionModel_h 1
 61                                                    55 
 62 #include "G4VEmModel.hh"                           56 #include "G4VEmModel.hh"
 63 #include "G4NistManager.hh"                    << 
 64 #include "G4ElementData.hh"                    << 
 65 #include "G4Physics2DVector.hh"                << 
 66 #include <vector>                              << 
 67                                                    57 
 68 class G4Element;                                   58 class G4Element;
 69 class G4ParticleChangeForLoss;                 << 
 70 class G4ParticleChangeForGamma;                << 
 71                                                    59 
 72 class G4MuPairProductionModel : public G4VEmMo     60 class G4MuPairProductionModel : public G4VEmModel
 73 {                                                  61 {
                                                   >>  62 
 74 public:                                            63 public:
 75                                                    64 
 76   explicit G4MuPairProductionModel(const G4Par <<  65   G4MuPairProductionModel(const G4ParticleDefinition* p = 0, const G4String& nam = "MuPairProd");
 77                                    const G4Str << 
 78                                                    66 
 79   ~G4MuPairProductionModel() override = defaul <<  67   ~G4MuPairProductionModel();
 80                                                    68 
 81   void Initialise(const G4ParticleDefinition*, <<  69   void Initialise(const G4ParticleDefinition*, const G4DataVector&);
 82                                                    70 
 83   void InitialiseLocal(const G4ParticleDefinit <<  71   G4double HighEnergyLimit(const G4ParticleDefinition* p);
 84                        G4VEmModel* masterModel << 
 85                                                << 
 86   G4double ComputeCrossSectionPerAtom(const G4 << 
 87               G4double kineticEnergy,          << 
 88               G4double Z, G4double A,          << 
 89               G4double cutEnergy,              << 
 90               G4double maxEnergy) override;    << 
 91                                                << 
 92   G4double ComputeDEDXPerVolume(const G4Materi << 
 93                                 const G4Partic << 
 94                                 G4double kinet << 
 95                                 G4double cutEn << 
 96                                                << 
 97   void SampleSecondaries(std::vector<G4Dynamic << 
 98         const G4MaterialCutsCouple*,           << 
 99         const G4DynamicParticle*,              << 
100         G4double tmin,                         << 
101         G4double maxEnergy) override;          << 
102                                                << 
103   G4double MinPrimaryEnergy(const G4Material*, << 
104                             const G4ParticleDe << 
105                             G4double) override << 
106                                                << 
107   virtual G4double                             << 
108   ComputeDMicroscopicCrossSection(G4double tki << 
109           G4double pairEnergy);                << 
110                                                << 
111   inline void SetLowestKineticEnergy(G4double  << 
112                                                << 
113   inline void SetParticle(const G4ParticleDefi << 
114                                                << 
115   // hide assignment operator and copy constru << 
116   G4MuPairProductionModel & operator=          << 
117   (const G4MuPairProductionModel &right) = del << 
118   G4MuPairProductionModel(const  G4MuPairProdu << 
119                                                    72 
120 protected:                                     <<  73   G4double LowEnergyLimit(const G4ParticleDefinition* p);
121                                                    74 
122   G4double ComputMuPairLoss(G4double Z, G4doub <<  75   void SetHighEnergyLimit(G4double e) {highKinEnergy = e;};
123                             G4double tmax);    << 
124                                                    76 
125   G4double ComputeMicroscopicCrossSection(G4do <<  77   void SetLowEnergyLimit(G4double e) {lowKinEnergy = e;};
126                                           G4do << 
127                                           G4do << 
128                                                    78 
129   G4double FindScaledEnergy(G4int Z, G4double  <<  79   G4double MinEnergyCut(const G4ParticleDefinition*,
130           G4double yymin, G4double yymax);     <<  80                         const G4MaterialCutsCouple*);
131                                                    81 
132   inline G4double MaxSecondaryEnergyForElement <<  82   G4bool IsInCharge(const G4ParticleDefinition*);
133                  G4double Z);                  << 
134                                                    83 
135   void MakeSamplingTables();                   <<  84   G4double ComputeDEDX(const G4MaterialCutsCouple*,
                                                   >>  85                        const G4ParticleDefinition*,
                                                   >>  86                              G4double kineticEnergy,
                                                   >>  87                              G4double cutEnergy);
136                                                    88 
137   void StoreTables() const;                    <<  89   G4double CrossSection(const G4MaterialCutsCouple*,
                                                   >>  90                         const G4ParticleDefinition*,
                                                   >>  91                               G4double kineticEnergy,
                                                   >>  92                               G4double cutEnergy,
                                                   >>  93                               G4double maxEnergy);
138                                                    94 
139   G4bool RetrieveTables();                     <<  95   G4DynamicParticle* SampleSecondary(
                                                   >>  96                                 const G4MaterialCutsCouple*,
                                                   >>  97                                 const G4DynamicParticle*,
                                                   >>  98                                       G4double tmin,
                                                   >>  99                                       G4double maxEnergy);
140                                                   100 
141   virtual void DataCorrupted(G4int Z, G4double << 101   std::vector<G4DynamicParticle*>* SampleSecondaries(
                                                   >> 102                                 const G4MaterialCutsCouple*,
                                                   >> 103                                 const G4DynamicParticle*,
                                                   >> 104                                       G4double tmin,
                                                   >> 105                                       G4double maxEnergy);
142                                                   106 
143   G4ParticleChangeForLoss* fParticleChange = n << 107   virtual G4double MaxSecondaryEnergy(
144   const G4ParticleDefinition* particle = nullp << 108         const G4DynamicParticle* dynParticle);
145   G4NistManager* nist = nullptr;               << 
146                                                << 
147   G4double factorForCross;                     << 
148   G4double sqrte;                              << 
149   G4double particleMass = 0.0;                 << 
150   G4double z13 = 0.0;                          << 
151   G4double z23 = 0.0;                          << 
152   G4double lnZ = 0.0;                          << 
153                                                   109 
154   G4double minPairEnergy;                      << 110 protected:
155   G4double lowestKinEnergy;                    << 
156                                                   111 
157   G4double emin;                               << 112   virtual G4double MaxSecondaryEnergy(const G4ParticleDefinition*,
158   G4double emax;                               << 113                         G4double kineticEnergy);
159   G4double ymin = -5.0;                        << 
160   G4double dy = 0.005;                         << 
161                                                << 
162   G4int currentZ = 0;                          << 
163   G4int nYBinPerDecade = 4;                    << 
164   std::size_t nbiny = 1000;                    << 
165   std::size_t nbine = 0;                       << 
166                                                << 
167   G4bool fTableToFile = false;                 << 
168                                                << 
169   // static members                            << 
170   static const G4int NZDATPAIR = 5;            << 
171   static const G4int NINTPAIR = 8;             << 
172   static const G4int ZDATPAIR[NZDATPAIR];      << 
173   static const G4double xgi[NINTPAIR];         << 
174   static const G4double wgi[NINTPAIR];         << 
175                                                   114 
176 private:                                          115 private:
177                                                   116 
178   G4ParticleDefinition* theElectron;           << 117   G4double ComputMuPairLoss(G4double Z, G4double tkin, G4double cut);
179   G4ParticleDefinition* thePositron;           << 118 
180   G4String dataName{""};                       << 119   G4double ComputeMicroscopicCrossSection(G4double tkin,
181 };                                             << 120                                           G4double Z,
                                                   >> 121                                           G4double cut);
182                                                   122 
183 //....oooOO0OOooo........oooOO0OOooo........oo << 123   G4double ComputeDMicroscopicCrossSection(G4double tkin,
                                                   >> 124                                            G4double Z,
                                                   >> 125                                            G4double pairEnergy);
                                                   >> 126 
                                                   >> 127   G4double ComputeDDMicroscopicCrossSection(G4double tkin,
                                                   >> 128                                            G4double Z,
                                                   >> 129                                            G4double pairEnergy,
                                                   >> 130                                            G4double asymmetry);
184                                                   131 
185 inline void G4MuPairProductionModel::SetLowest << 132   G4DataVector* ComputePartialSumSigma(const G4Material* material,
186 {                                              << 133                                              G4double tkin, G4double cut);
187   lowestKinEnergy = e;                         << 134 
188 }                                              << 135   const G4Element* SelectRandomAtom(const G4MaterialCutsCouple* couple) const;
                                                   >> 136 
                                                   >> 137   void MakeSamplingTables();
189                                                   138 
190 //....oooOO0OOooo........oooOO0OOooo........oo << 139   // hide assignment operator
                                                   >> 140   G4MuPairProductionModel & operator=(const  G4MuPairProductionModel &right);
                                                   >> 141   G4MuPairProductionModel(const  G4MuPairProductionModel&);
191                                                   142 
192 inline                                         << 143   G4double minPairEnergy;
193 void G4MuPairProductionModel::SetParticle(cons << 144   G4double highKinEnergy;
                                                   >> 145   G4double lowKinEnergy;
                                                   >> 146 
                                                   >> 147   // tables for sampling
                                                   >> 148   G4int nzdat,ntdat,NBIN;
                                                   >> 149   static G4double zdat[5],adat[5],tdat[8];
                                                   >> 150   G4double ya[1001],proba[5][8][1001];
                                                   >> 151 
                                                   >> 152   std::vector<G4DataVector*> partialSumSigma;
                                                   >> 153   G4bool  samplingTablesAreFilled;
                                                   >> 154 };
                                                   >> 155 
                                                   >> 156 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
                                                   >> 157 
                                                   >> 158 inline 
                                                   >> 159 G4double G4MuPairProductionModel::MaxSecondaryEnergy(
                                                   >> 160          const G4DynamicParticle* dynParticle)
194 {                                                 161 {
195   if(nullptr == particle) {                    << 162   return dynParticle->GetKineticEnergy();
196     particle = p;                              << 163 } 
197     particleMass = particle->GetPDGMass();     << 
198   }                                            << 
199 }                                              << 
200                                                   164 
201 //....oooOO0OOooo........oooOO0OOooo........oo << 165 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
202                                                   166 
203 inline G4double                                << 167 inline 
204 G4MuPairProductionModel::MaxSecondaryEnergyFor << 168 G4double G4MuPairProductionModel::MaxSecondaryEnergy(
205                   G4double ZZ)                 << 169                                  const G4ParticleDefinition*,
                                                   >> 170                    G4double kineticEnergy)
206 {                                                 171 {
207   G4int Z = G4lrint(ZZ);                       << 172   return kineticEnergy;
208   if(Z != currentZ) {                          << 
209     currentZ = Z;                              << 
210     z13 = nist->GetZ13(Z);                     << 
211     z23 = z13*z13;                             << 
212     lnZ = nist->GetLOGZ(Z);                    << 
213   }                                            << 
214   return kineticEnergy + particleMass*(1.0 - 0 << 
215 }                                                 173 }
216                                                   174 
217 //....oooOO0OOooo........oooOO0OOooo........oo << 175 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
218                                                   176 
219 #endif                                            177 #endif
220                                                   178