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G4MuPairProduction.cc
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25 //
26 // $Id: G4MuPairProduction.cc 108424 2018-02-13 11:19:25Z gcosmo $
27 //
28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class file
31 //
32 //
33 // File name: G4MuPairProduction
34 //
35 // Author: Laszlo Urban
36 //
37 // Creation date: 30.05.1998
38 //
39 // Modifications:
40 //
41 // 04-06-98 in DoIt,secondary production condition:
42 // range>std::min(threshold,safety)
43 // 26-10-98 new stuff from R. Kokoulin + cleanup , L.Urban
44 // 06-05-99 bug fixed , L.Urban
45 // 10-02-00 modifications+bug fix , new e.m. structure, L.Urban
46 // 29-05-01 V.Ivanchenko minor changes to provide ANSI -wall compilation
47 // 10-08-01 new methods Store/Retrieve PhysicsTable (mma)
48 // 17-09-01 migration of Materials to pure STL (mma)
49 // 20-09-01 (L.Urban) in ComputeMicroscopicCrossSection, remove:
50 // if(MaxPairEnergy<CutInPairEnergy) MaxPairEnergy=CutInPairEnergy
51 // 26-09-01 completion of store/retrieve PhysicsTable
52 // 28-09-01 suppression of theMuonPlus ..etc..data members (mma)
53 // 29-10-01 all static functions no more inlined (mma)
54 // 07-11-01 particleMass becomes a local variable (mma)
55 // 19-08-02 V.Ivanchenko update to new design
56 // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
57 // 26-12-02 Secondary production moved to derived classes (V.Ivanchenko)
58 // 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko)
59 // 08-08-03 STD substitute standard (V.Ivanchenko)
60 // 27-09-03 e+ set to be a secondary particle (V.Ivanchenko)
61 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko)
62 // 10-02-04 Add lowestKinEnergy (V.Ivanchenko)
63 // 17-08-04 Utilise mu+ tables for mu- (V.Ivanchenko)
64 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
65 // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
66 //
67 // -------------------------------------------------------------------
68 //
69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
70 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
71 
72 #include "G4MuPairProduction.hh"
73 #include "G4SystemOfUnits.hh"
74 #include "G4Positron.hh"
75 #include "G4VEmModel.hh"
77 #include "G4ElementData.hh"
78 #include "G4EmParameters.hh"
79 
80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
81 
82 using namespace std;
83 
85  : G4VEnergyLossProcess(name),
86  theParticle(nullptr),
87  lowestKinEnergy(1.*GeV),
88  isInitialised(false)
89 {
92  SetIonisation(false);
93 }
94 
95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
96 
98 {
99  return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 10.0*MeV);
100 }
101 
102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
103 
105  const G4Material*,
106  G4double)
107 {
108  return lowestKinEnergy;
109 }
110 
111 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
112 
114  const G4ParticleDefinition* part,
115  const G4ParticleDefinition*)
116 {
117  if (!isInitialised) {
118  isInitialised = true;
119 
120  theParticle = part;
121 
123  SetEmModel(mod);
124 
127 
128  G4VEmFluctuationModel* fm = nullptr;
130  mod->SetLowEnergyLimit(param->MinKinEnergy());
131  mod->SetHighEnergyLimit(param->MaxKinEnergy());
132  AddEmModel(1, mod, fm);
133  }
134 }
135 
136 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
137 
139  G4String endOfLine) const
140 {
142  if(ed) {
143  for(G4int Z=1; Z<93; ++Z) {
145  if(pv) {
146  out << " Sampling table " << pv->GetLengthY()
147  << "x" << pv->GetLengthX() << "; from "
148  << exp(pv->GetY(0))/GeV << " GeV to "
149  << exp(pv->GetY(pv->GetLengthY()-1))/TeV
150  << " TeV " << endOfLine;
151  break;
152  }
153  }
154  }
155 }
156 
157 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
158 
159 void G4MuPairProduction::ProcessDescription(std::ostream& out) const
160 {
161  out << "<strong>Pair production</strong>";
163 }
164 
165 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
T max(const T t1, const T t2)
brief Return the largest of the two arguments
const XML_Char * name
Definition: expat.h:151
size_t GetLengthY() const
void SetEmModel(G4VEmModel *, G4int index=0)
static constexpr double MeV
Definition: G4SIunits.hh:214
void SetHighEnergyLimit(G4double)
Definition: G4VEmModel.hh:707
G4MuPairProduction(const G4String &processName="muPairProd")
const char * p
Definition: xmltok.h:285
G4double MaxKinEnergy() const
virtual void StreamProcessInfo(std::ostream &outFile, G4String endOfLine=G4String("\n")) const override
G4double GetY(size_t index) const
G4double GetPDGCharge() const
virtual G4double MinPrimaryEnergy(const G4ParticleDefinition *p, const G4Material *, G4double cut) override
G4double GetPDGMass() const
Float_t Z
static constexpr double TeV
Definition: G4SIunits.hh:218
double G4double
Definition: G4Types.hh:76
bool G4bool
Definition: G4Types.hh:79
TString part[npart]
Definition: Style.C:32
G4Physics2DVector * GetElement2DData(G4int Z)
void SetIonisation(G4bool val)
virtual void ProcessDescription(std::ostream &) const override
void AddEmModel(G4int, G4VEmModel *, G4VEmFluctuationModel *fluc=0, const G4Region *region=nullptr)
virtual void InitialiseEnergyLossProcess(const G4ParticleDefinition *, const G4ParticleDefinition *) override
static G4Positron * Positron()
Definition: G4Positron.cc:94
G4double MinKinEnergy() const
void SetSecondaryParticle(const G4ParticleDefinition *p)
const G4ParticleDefinition * theParticle
int G4int
Definition: G4Types.hh:78
void SetLowEnergyLimit(G4double)
Definition: G4VEmModel.hh:714
G4VEmModel * EmModel(size_t index=0) const
void SetProcessSubType(G4int)
Definition: G4VProcess.hh:435
size_t GetLengthX() const
G4ElementData * GetElementData()
Definition: G4VEmModel.hh:801
static constexpr double GeV
Definition: G4SIunits.hh:217
virtual G4bool IsApplicable(const G4ParticleDefinition &p) override
static G4EmParameters * Instance()
virtual void ProcessDescription(std::ostream &outFile) const override