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Geant4/examples/extended/parameterisations/Par02/src/Par02DetectorParametrisation.cc

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 26 //
 27 /// \file Par02DetectorParametrisation.cc
 28 /// \brief Implementation of the Par02DetectorParametrisation class
 29 
 30 #include "Par02DetectorParametrisation.hh"
 31 
 32 #include "G4SystemOfUnits.hh"
 33 #include "G4UnitsTable.hh"
 34 
 35 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 36 
 37 Par02DetectorParametrisation::Par02DetectorParametrisation() = default;
 38 
 39 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 40 
 41 Par02DetectorParametrisation::~Par02DetectorParametrisation() = default;
 42 
 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 44 
 45 G4double Par02DetectorParametrisation::GetResolution(Detector aDetector, Parametrisation aParam,
 46                                                      G4double aMomentum)
 47 {
 48   aMomentum /= GeV;  // To make sure momentum's unit is GeV
 49   G4double res = 1.0;
 50   if (aParam == eCMS) {
 51     switch (aDetector) {
 52       case Par02DetectorParametrisation::eTRACKER:
 53         res = 0.013;
 54         break;
 55       case Par02DetectorParametrisation::eEMCAL:
 56         res = std::sqrt(std::pow(0.03 / std::sqrt(aMomentum), 2)  // stochastic
 57                         + std::pow(0.12 / aMomentum, 2)  // noise
 58                         + std::pow(0.003, 2));  // constant
 59         break;
 60       case Par02DetectorParametrisation::eHCAL:
 61         res = std::sqrt(std::pow(1.1 / std::sqrt(aMomentum), 2)  // stochastic
 62                         + std::pow(0.09, 2));  // constant
 63         break;
 64     }
 65   }
 66   else if (aParam == eATLAS) {
 67     switch (aDetector) {
 68       case Par02DetectorParametrisation::eTRACKER:
 69         res = 0.01;
 70         break;
 71       case Par02DetectorParametrisation::eEMCAL:
 72         res = std::sqrt(std::pow(0.1 / std::sqrt(aMomentum), 2)  // stochastic
 73                         + std::pow(0.0017, 2));  // constant
 74         break;
 75       case Par02DetectorParametrisation::eHCAL:
 76         res = std::sqrt(std::pow(0.55 / std::sqrt(aMomentum), 2)  // stochastic
 77                         + std::pow(0.06, 2));  // constant
 78         break;
 79     }
 80   }
 81   else if (aParam == eALEPH) {
 82     switch (aDetector) {
 83       case Par02DetectorParametrisation::eTRACKER:
 84         res = 0.01;
 85         break;
 86       case Par02DetectorParametrisation::eEMCAL:
 87         res = std::sqrt(std::pow(0.18 / std::sqrt(aMomentum), 2)  // stochastic
 88                         + std::pow(0.009, 2));  // constant
 89         break;
 90       case Par02DetectorParametrisation::eHCAL:
 91         res = 0.85 / std::sqrt(aMomentum);  // stochastic
 92         break;
 93     }
 94   }
 95   return res;
 96 }
 97 
 98 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 99 
100 G4double Par02DetectorParametrisation::GetEfficiency(Detector aDetector, Parametrisation /*aParam*/,
101                                                      G4double /*aMomentum*/)
102 {
103   // For the time being, we set the efficiency to 1.0
104   G4double eff = 1.0;
105   switch (aDetector) {
106     case Par02DetectorParametrisation::eTRACKER:
107       eff = 1.0;
108       break;
109     case Par02DetectorParametrisation::eEMCAL:
110       eff = 1.0;
111       break;
112     case Par02DetectorParametrisation::eHCAL:
113       eff = 1.0;
114       break;
115   }
116   return eff;
117 }
118 
119 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
120